NOAA Teacher at Sea
Chris Murdock
Aboard NOAA ship Oregon II
June 7th – June 20th, 2017
Mission: SEAMAP Groundfish Survey
Geographic Area of Cruise: Gulf of Mexico
Date: May 30, 2017
Weather Data from the Bridge
Weather in Iowa can be crazy! Just last week we went from 90 degrees and sunny all the way down to 50 degrees and rainy in the course of three days. We have been lucky this week to have sunny skies and a very comfortable temperature of 75. Perfect running weather!
Science and Technology Log
I will be joining the crew of the Oregon II on leg one of the SEAMAP (Southeast Area Monitoring & Assessment Program) Summer Groundfish Survey in the Gulf of Mexico. Some of the objectives of this survey are to monitor the size and distribution of shrimp and other groundfish (fish that live near the sea bottom), as well as to provide information on shrimp and groundfish populations within the Gulf of Mexico. In order to accomplish these objectives, large quantities of groundfish are collected using a long net called a trawl net. All shrimp species will be sorted from the catch in order to be weighed and sexed. A total of 200 shrimp from each catch will be documented, and this information will be extrapolated out to determine estimated total numbers from each area studied. This process will be repeated for other selected species of groundfish through the course of the study. Research like this is vital to the long-term sustainability of these fish populations.
NOAA Ship Oregon II. Photo Courtesy of NOAA
Personal Log and Introduction
My name is Chris Murdock and I teach Biology, AP Biology, and Biomedical Science at Regina High School in Iowa City, Iowa. I have been lucky to call Regina home for the past 4 years. Regina is such a unique place for so many different reasons, and I could probably spend this entire post explaining what Regina means to me and how it has made me into the teacher/person I am today. I will forever be grateful to Regina for allowing me opportunities like this one to better myself both personally and professionally.
Backpacking through Canyonlands National Park, March, 2017
Throughout my entire life, I have always considered myself a very curious person. Even at an early age, I would constantly ask questions about how this and that worked, or why certain phenomena happen the way that they do. As a result, I have always been fascinated by the wonderful world of science. That hunger for knowledge led me to Mrs. Mazucca’s honors biology class my sophomore year of high school. Never before have I had a teacher more passionate, more engaging, and one that genuinely got you excited for a topic you knew nothing about. I loved every second of that class, and I can honestly say that without having Mrs. Mazucca I would not be in the position I am today. It was in that moment I knew what I wanted to be when I grew up. From that day on, everything I did was to better prepare myself to be the best educator I could be.
I have always been fascinated by the oceans and the life within them. Growing up in the Midwest, I was confined to exploring local rivers and lakes. While I loved exploring the bodies of water around me, there was always something about the ocean that drew me in. From the vastness of the oceans, to the diversity of life within them, I was awestruck. After all, life has been evolving in the oceans for hundreds of millions of years! Every vacation I took near an ocean, I would spend as much time as possible in and around the water. It is amazing to me that something so prominent in all of our lives can go unchecked for such a long period. During my time at the University of Iowa, I took every marine science class I could. There was even a period where I contemplated leaving the college of education to pursue a career in marine biology. The more I learned, the more I fell in love with the ocean. Unfortunately, one thing became increasingly clear to me throughout college: the oceans and the life within them are in danger like never before. While I could do plenty to educate the masses as a marine biologist, I knew that teaching was where I could make the greatest impact. I decided that as a teacher, I was going to do everything I could to foster an environment to make my students more environmentally and globally aware. In order for this to be successful, I myself needed to embark on a journey to do the same.
Snorkeling in Belize, August 2016
Fast forward to December of 2015 when my girlfriend notified me of the NOAA Teacher At Sea Experience. “This is absolutely perfect for you!” she said, “You have to sign up for this”. The more I researched, the more I thought this was too good to be true. I spent nearly the entire next year thinking about the potential of this trip until the time finally came to fill out my application. At the end of November, after all the forms were turned in, I received the email “you will receive notification of your application status via the email address listed on your application by February 2017”. It was going to be a long wait.
Then came February 1st, and as I was walking out of the door to go to school I got an email from NOAA. I nearly spilled my coffee all over me as I fumbled over my phone to open the document as fast as I could. Ever since last December, I had prepared myself for a rejection letter. While I was very confident in my application, I just didn’t believe it would work out. It was too perfect of an experience for me to actually happen. With my heart pounding out of my chest, I began to read the document. To my utter amazement I was accepted! Me. Accepted into the experience of a lifetime. Words cannot describe the pure joy I felt as I drove to work that day. I was going to get the chance to live out my childhood dream, without sacrificing my true passion of teaching. To say I am lucky is an understatement.
My students and I on the senior class trip to Washington, DC. April, 2016
From that day on, my life revolved around NOAA Teacher At Sea. I read dozens of blog posts, I read about every ship in the fleet, and I filled out all the required paperwork as fast as my printer would spit it out. While any cruise would have been an unbelievable experience, I could not be happier with being selected for the SEAMAP survey in the Gulf. Living in Iowa and the heart of farmland, USA, my actions and the actions of my neighbors have a direct impact on the health of the Gulf ecosystem. It is my hope that once I return from my cruise, I will be able to get my community to be more conscious of the oceans and how we positively (or negatively) affect them. Writing this blog, I am still in a state a shock that this is really happening. June 7th cannot get here fast enough! I am so excited to be able to spend two amazing weeks on board the Oregon II learning from some of the best scientists in the world.
Did You Know?
The Gulf of Mexico is the ninth largest body of water on the planet, covering an area of 600,000 mi2! (Source-Encyclopedia Britannica)
Fact of the Day
In my classroom, we start class every day with a “Fact of the Day” where I share new and upcoming research from the scientific community. Today’s fact comes from NOAA Research Vessel Okeanos Explorer.
This NOAA team has been exploring the depths of the Central Pacific Basin to explore deep water ecosystems before they become impacted too greatly by climate change. On this expedition, the NOAA team captured some truly amazing footage, some of which had previously not been seen except for in the fossil record! Some examples include Sea snails basically eating the poop of crinoids (sea lilies), and usually inactive brittle stars attacking swimming squids! Several videos from this expedition are posted below.
All of this amazing research sheds light on a largely unexplored region of the oceans, and the data collected from this expedition will help create a baseline to measure the effects of climate change moving forward. (Source-Ocean Explorer.noaa.gov) (Videos of these interactions can be found here!- http://oceanexplorer.noaa.gov/okeanos/explorations/ex1705/logs/photolog/welcome.html)
Mission: Spring Ecosystem Monitoring (EcoMon) Survey (Plankton and Hydrographic Data)
Geographic Area of Cruise: Atlantic Ocean
Date: June 5, 2017
Weather Data from the Bridge:
Latitude: 42°22.4’N
Longitude: -70°38.2W
Sky: Foggy
Visibility: ≥ 1 Nautical Mile
Wind Direction: 090°E
Wind Speed: 20 Knots
Sea Wave Height: 2-4 Feet
Barometric Pressure: 1008.3 Millibars
Sea Water Temperature: 13.3°C
Air Temperature: 12.1°C
Science and Technology Log
Drifting Buoy
Seconds away from deploying the drifting buoy.
3… 2… 1… deploy the drifting buoy! The NOAA Office of Climate Observation established the Adopt a Drifter Program in 2004 for K-16 teachers. The program’s mission is “to establish scientific partnerships between schools around the world and engage students in activities and communication about ocean climate science.” By adopting a drifter I am provided the unique opportunity of infusing ocean observing system data into my library media curriculum. A drifter, or drifting buoy, is a floating ocean buoy that collects data on the ocean’s surface. They tend to last approximately 400 days in the water. Drifters allow scientists to track ocean currents, changes in temperature, salinity, and other important components of the ocean’s surface as they float freely and transmit information.
Decorating the drifter with stickers.
The buoy is equipped with a thermistor, a drogue and a transmitter so that it can send out daily surface water temperatures and its position to an Argos satellite while it is being moved by surface currents pulling on the drogue. Soon I will receive the WMO number of my drifting buoy to access data online from the drifter. My students and I will receive a drifter tracking chart to plot the coordinates of the drifter as it moves freely in the surface ocean currents. Students will be able to make connections between the data accessed online and other maps showing currents, winds, and surface conditions.
Representing my alma mater WKU, NOAA Ship Gordon Gunter, PBS LearningMedia, & paw prints for Simpson Elementary.
Respresenting the Kentucky state flag, Simpson Elementary School’s logo, & my school district Franklin-Simpson.
How to Deploy a Drifter:
Remove the plastic covering (shrink-wrapped) from the buoy on the ship.
Record the five-digit ID number of the drifter inscribed on the surface float.
A magnet is then removed from the buoy, which starts a transmitter (located in the upper dome) to allow data from the buoy to be sent to a satellite and then to a ground-based station so we can retrieve the data.
Throw the unpacked drifter from the lowest possible deck of the ship into the sea. The tether (cable) and drogue (long tail that is 15 meters long) will unwrap and extend below the sea surface where it will allow the drifter to float and move in the ocean currents.
Record the date, time, and location of the deployment as well as the five-digit ID.
GoPro footage of the drifter’s deployment
My drifter buoy was launched at 8:01 PM (20:01) on June 3rd, 2017. Its official position is 43 degrees 32.9 minutes North, 067 degrees 40.5 minutes West.
This image shows where we deployed the buoy in the Gulf of Maine. The red and blue symbols are the buoy’s trajectory, confirming that the drifter is being tracked via satellite in real-time.
Chief Scientist, David Richardson and I on the ship’s stern ready to deploy the drifter.
The WMO # associated with my drifter is 44907. To track the buoy and view data, please visit the GDP Drifter Data Assembly Center website. There, you will find instructions on how to access data via the NOAA Observing System Monitoring Center (OSMC) webpage or Quality Control Tools Buoy Location and Trajectory website. My students will have full access to our drifting buoy data (e.g., latitude/longitude coordinates, time, date) in near real-time for their adopted drifting buoy as well as all drifting buoys deployed as part of the Global Drifter Program. Students can access, retrieve, and plot various subsets of data as a time series for specified time periods for any drifting buoy and track and map their adopted drifting buoy for short and long time periods (e.g., one day, one month, one year). My students are going to be thrilled when learn they get to be active participants in NOAA’s oceanography research.
Drifter Diagram [Source — NOAA/AOML/PhOD]
Below is a 2-minute video from NOAA’s National Ocean Service to learn more about drifting buoys.
Deploying my drifting buoy in 360-degress
Nautical Navigation
NOAA Ship Gordon Gunter’s Navigational Bridge
Understanding where you are on the grid is essential when navigating a ship of any size. NOAA Ship Gordon Gunter houses a major operation with 30 personnel on board. The safety of each individual is a primary concern for Commanding Officer, Lindsay Kurelja. She knows all there it is to know about navigating a marine vessel. Early mariners heavily relied on the stars and landmarks to determine their position in the sea. While celestial and terrestrial navigation techniques are still effective and used often by contemporary sailors, modern ships have GPS. GPS stands for Global Positioning System, and it lets us know where we are and where we are going anywhere on Earth. GPS is quickly becoming an integrative part of our society. It is a worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations.
GPS Receiver in the Navigational Bridge
Commanding Officer Kurelja and her crew use a GPS receiver to chart Gordon Gunter’s position in the ocean. The ship receives signals from 10 satellites that are in lower orbit. Once the ship’s receiver calculates its distance from four or more satellites, it knows exactly where we are.
Nautical Chat
Within seconds, from thousands of miles up in space, our location can be determined with incredible precision, often within a few yards of your actual location. [Source — NOAA] The satellites’ signals give NOAA officers the ship’s positioning. Then, using a nautical chart of the area in which we are cruising, the Navigation bridge team plots the latitude position and the longitude position to determine the ship’s exact location.
Ship’s Internet
Since my expedition began you might have wondered, “How is he even sending these blog posts from so far out at sea?” That is a legitimate question. One I had been asking myself. So, I went to Tony VanCampen, Gordon Gunter’s Chief Electronics Technician for the answer. You may have guessed it; the answer has something to do with Earth’s satellites. Providing internet on ships is different than on land because, well, there is no land. We are surrounded by water; there are no towers or cables.
Gordon Gunter’s Satellite Antenna
On the deck of the ship is a fixed installation antenna that provides broadband capability. It looks like a mini water tower. The antenna sends signals about the ship’s positioning to a geostationary satellite. A geostationary satellite is placed directly over the equator and revolves in the same direction the earth rotates (west to east). The ship’s computers use the connection made between the antenna and the satellite to transfer data which the satellite in turn sends to a ground site in Holmdel, New Jersey. The site in New Jersey connects the ship to the Internet.
Electronics Technician, Tony VanCampen
Chief Electronics Technician, Tony VanCampen not only understands, installs, maintains, and repairs all the technology on board Gordon Gunter, he is an expert on all things nautical. Tony has been an asset to my Teacher at Sea experience. He takes the time to not only explain how equipment works, but he shows me where things are and then demonstrates their capabilities. Aboard Gordon Gunter, Tony runs all of the mission electronics, navigational electronics, and the Global Maritime Distress and Safety System. Tony has been working at sea since 1986 when he joined the NAVY and reported on board the USS Berkeley. He took a short break from work at sea when he became a physical security specialist for the NAVY at a weapons station. Tony has held several roles in the NAVY and with NOAA, all have given him a wealth of knowledge about ship operations. He is dedicated to the needs of the crew, scientists, and as of late, one Teacher at Sea. I owe Tony a debt of gratitude for his assistance and kindness.
Personal Log
Out to Sea (Saturday, June 3)
Bongo Nets Plankton Sampling
As I entered the dry lab this morning to report for duty, there was a lot of exciting chatter going on. I presumed a whale had been seen nearby or an unusual fish was caught in one of the bongo nets. While either of these situations would generate excitement, the lab’s enthusiasm was on the drifting buoy that was to be deployed today. I love how the scientists and volunteers get overwhelmed with joy for all things “science”. I had strong feelings after learning the news, as well. My emotions steered more toward worry than elation because I was the one to deploy the buoy! What if I deployed the drifting buoy incorrectly? What if it gets sucked under the ship? What if a whale eats it? Questions like these kept running through my mind all afternoon. Luckily, time spent rinsing bongo nets and preserving plankton samples kept my mind off the matter. But a voice in the back of my brain kept repeating, “What if…”
My drifting buoy
I finally laid my worries to rest. At sunset I deployed the drifting buoy without incident! The entire event was extremely special. My buoy is now floating atop the waves of the Gulf of Maine and soon to other parts of the sea. Yes, it will be all alone on the surface, but underneath and above will be a plethora of wildlife. Even when no one is there to witness it, ocean life carries on. For my students and me, we do not have to be with the drifting buoy physically to experience its journey. The transmitting equipment will give us the opportunity to go on the same adventure as the buoy while learning new things along the way.
A New Week (Sunday, June 4)
It has been one week, seven days since I first arrived on board NOAA Ship Gordon Gunter. Like the virga (an observable streak of precipitation falling from a cloud but evaporates or before reaching the surface) we experienced this morning, my time aboard the ship is fleeting, too. As the days dwindle until we disembark, I find myself attempting to soak in as much of the experience as I can. Suddenly, I am looking at the horizon a little longer; I pay closer attention to the sounds made by the ship; and I pause to think about how each sample will tell us more about the Earth’s mysterious oceans. Yes, a week has passed, but now it is the first day of a new week. With two days and a “wakeup” remaining, I intend to embrace each moment to its fullest.
Just Another Manic Monday (Monday, June 5)
No matter the day or time, NOAA Ship Gordon Gunter runs like clockwork. Today, however, the ship seemed to be buzzing with a different kind of energy. NOAA Corps Officers and the crew have been moving around the ship with an ever greater sense of purpose. Believe me, there is never an idle hand aboard Gordon Gunter. One major factor that heavily influences the ship’s operations is the weather. The National Weather Service has issued a gale warning for the Gulf of Maine. Gale warnings mean maritime locations are expected to experience winds of Gale Force on the Beaufort scale.
Gordon Gunter’s position at mid-morning of June 5th
Tonight’s weather forecast are winds reaching 20-30 Knots with seas building to 4 to 6 feet. Tuesday’s forecast is even grimmer: winds between 25-35 Knots and waves reaching 7-12 feet. [Source — National Weather Service] Even though the weather forecast is ominous, I fear not! Having witnessed the professionalism and expertise of every crew member on board the ship, I have full confidence in Gordon Gunter.
Cape Cod Canal
Chief Scientist and the Commanding Officer adjusted our course due to the imminent weather. We passed through the Cape Cod Canal, an artificial waterway in the state of Massachusetts connecting Cape Cod Bay in the north to Buzzards Bay in the south. The canal is used extensively by recreational and commercial vessels and people often just sit and watch ships and boats transiting the waterway. It was indeed a joyous occasion seeing land on the starboard and port sides of the ship. The passage provided many more sites to see compared to the open ocean. I thoroughly enjoyed the cruise through the Cape Cod Canal, but inside me was the desire to one day return to the deep, blue sea.
Animals Seen
Arthropod
Shrimp (Caridea)
Arctic Tern (Sterna paradisaea)
As you can tell, this blog post’s theme revolves around positioning and tracking. So, I decided to ask the seabird and marine mammal observers about the technology and methods they use to identify the positioning of animals out on the open ocean. Our wildlife observers, Glen and Nicholas, have a military-grade cased computer they keep with them on the flying bridge while looking for signs of birds and whales. The GPS keeps track of the ship’s position every five minutes so that a log of their course exists for reference later. When Glen or Nicholas identify a bird or marine mammal, they enter the data into the computer system which records the time and their exact GPS position. To know how many meters out an animal is, observers use a range finder.
Range Finder
This pencil has been carefully designed according to their location above sea level which is 13.7 meters from the ship’s flying bridge where the observers keep a sharp lookout. The observers place the top of the pencil on the horizon to get accurate distances. If the bird falls between each carved line on the pencil, they know approximately how many meters away the animal is. Wildlife observers’ rule of thumb for tracking animals is called a strip transect. Strip transects are where observers define a strip of a certain width, and count all creatures within that strip. Glen and Nicholas input data on any animal they see that is within 300 meters of the ship. Providing as much information as possible about the positioning of each observed living thing helps researchers understand what is happening and where.
RADAR (RAdio Detection And Ranging): It is used to determine the distance and direction of the ship from land, other ships, or any floating object out at sea.
Gyro Compass: It is used for finding true direction. It is used to find correct North Position, which is also the earth’s rotational axis.
Auto Pilot: It is a combination of hydraulic, mechanical, and electrical system and is used to control the ship’s steering system from a remote location (Navigation Bridge).
Echo Sounder: This instrument is used to measure the depth of the water below the ship’s bottom using sound waves.
Speed & Distance Log Device: The device is used to measure the speed and the distance traveled by a ship from a set point.
Automatic Radar Plotting Aid: The radar displays the position of the ships in the vicinity and selects the course for the vessel by avoiding any kind of collision.
GPS Receiver: A Global Positioning System (GPS) receiver is a display system used to show the ship’s location with the help of Global positioning satellite in the earth’s orbit.
Record of Navigation Activities: All the navigational activities must be recorded and kept on board for ready reference. This is a mandatory and the most important log book.
Did You Know?
GPS satellites fly in medium Earth orbit at an altitude of approximately 12,550 miles. Each satellite circles the Earth twice a day. The satellites in the GPS constellation are arranged so that users can view at least four satellites from virtually any point on the planet. [Source — NOAA]
Mission: Spring Ecosystem Monitoring (EcoMon) Survey (Plankton and Hydrographic Data)
Geographic Area of Cruise: Atlantic Ocean
Date: June 3, 2017
Weather Data from the Bridge:
Latitude: 42°29.9’N
Longitude: -67°44.8’W
Sky: Scattered Clouds
Visibility: 12 Nautical Miles
Wind Direction: 270°W
Wind Speed: 8 Knots
Sea Wave Height: 2-3 Feet
Swell Wave: 1-3 Feet
Barometric Pressure: 1009.5 Millibars
Sea Water Temperature: 10.2°C
Air Temperature: 11°C
Science and Technology Log
Plankton Samples
Here I am with a canister of plankton we collected from the bongo nets.
You may have begun to notice that there are several methods of sampling plankton. Each technique is used several times a day at the sampling stations. The baby bongo nets collect the same type plankton as the large bongos. The primary difference is that the samples from the baby bongos are preserved in ethanol, rather than formalin. Chief Scientist, David Richardson explained that ethanol is being used more and more as a preservative because the solution allows scientists to test specimens’ genetics. Studying the genetics of plankton samples gives researchers a greater understanding of the ocean’s biodiversity. Genetics seeks to understand the process of trait inheritance from parents to offspring, including the molecular structure and function of genes, gene behavior in the context of a cell or organism, gene distribution, and variation and change in populations.
Jars and jars of plankton samples ready to be studied.
The big bongos use formalin to preserve plankton samples. Formalin has been used by scientists for decades, mainly because the preservative makes it easier for labs to study the samples. Today’s scientists continue to use formalin because it lets them compare their most recent sampling data to that from years ago. This presents a clearer picture of how marine environments have or have not changed.
Every so often, we use smaller mesh nets for the baby bongos which can catch the smallest of zooplanktons. The specimens from these special bongo nets are sent to CMarZ which stands for Census of Marine Zooplankton. CMarZ are scientists and students interested in zooplankton from around the world who are working toward a taxonomically comprehensive assessment of biodiversity of animal plankton throughout the world ocean. CMarZ samples are also preserved in ethanol. The goal of this organization is to produce a global assessment of marine zooplankton biodiversity, including accurate and complete information on species diversity, biomass, biogeographical distribution, and genetic diversity. [Source — Census of Marine Zooplankton]. Their website is incredible! They have images galleries of living plankton and new species that have been discovered by CMarZ scientists.
Another interesting project that Chief Scientist, David Richardson shared with me is the Census of Marine Life. The Census of Marine Life was a 10-year international effort that assessed the diversity (how many different kinds), distribution (where they live), and abundance (how many) of marine life—a task never before attempted on this scale. During their 10 years of discovery, Census scientists found and formally described more than 1,200 new marine species. [Source —Census of Marine Life] The census has a webpage devoted to resources for educators and the public. Contents include: videos and images galleries, maps and visualizations, a global marine life database, and links to many other resources.
Plankton samples are preserved in jars with water and formalin.
It is incredibly important that we have institutes like CMarZ, the Census of Marin Life, and the Sea Fisheries Institute in Poland where samples from our EcoMon Survey are sent. Most plankton are so small that you see them best through a microscope. At the lab in Poland, scientists remove the fish and eggs from all samples, as well as select invertebrates. These specimens are sent back to U.S. where the data is entered into models. The information is used to help form fishing regulations. This division of NOAA is called the National Marine Fisheries Service, or NOAA Fisheries. NOAA Fisheries is responsible for the stewardship of the nation’s ocean resources and their habitat. The organization provide vital services for the nation: productive and sustainable fisheries, safe sources of seafood, the recovery and conservation of protected resources, and healthy ecosystems—all backed by sound science and an ecosystem-based approach to management. [Source —NOAA Fisheries]
Vertical CTD Cast
In addition to collecting plankton samples, we periodically conduct vertical CTD casts. This is a standard oceanographic sampling technique that tells scientists about dissolved inorganic carbon, ocean water nutrients, the levels of chlorophyll, and other biological and chemical parameters.
The CTD’s Niskin bottles trap water at different depths in the ocean for a wide-range of data.
The instrument is a cluster of sensors which measure conductivity, temperature, and pressure. Depth measurements are derived from measurement of hydrostatic pressure, and salinity is measured from electrical conductivity. Sensors are arranged inside a metal or resin housing, the material used for the housing determining the depth to which the CTD can be lowered. From the information gathered during CTD casts, researchers can investigate how factors of the ocean are related as well as the variation of organisms that live in the ocean.
Here’s how a vertical CTD cast works. First, the scientists select a location of interest (one of the stations for the leg of the survey). The ship travels to that position and stays as close to the same spot as possible depending on the weather as the CTD rosette is lowered through the water, usually to within a few meters of the bottom, then raised back to the ship. By lowering the CTD close to the bottom, then moving the ship while cycling the package up and down only through the bottom few hundred meters, a far greater density of data can be obtained. This technique was dubbed a CTD cast and has proven to be an efficient and effective method for mapping and sampling hydrothermal plumes. [Source —NOAA]
Survey Tech, LeAnn Conlon helps recover the CTD.
During the vertical CTD cast, I am in charge of collecting water samples from specified Niskin bottles on the rosette. The Niskin bottles collected water at different levels: surface water, maximum depth, and the chlorophyll maximum where the greatest amount of plankton are usually found. I take the collected seawater to the lab where a mechanism filters the water, leaving only the remainder plankton. The plankton from the water contains chlorophyll which a lab back on land tests to determine the amount of chlorophyll at different water depths. This gives researchers insight about the marine environment in certain geographic locations at certain times of the year.
Meet the Science Party
Meet Chief Scientist, David Richardson!
David Richardson planning our cruise with Operations Officer, Libby Mackie.
What is your position on NOAA Ship Gordon Gunter? I am the Chief Scientist for this 10 day cruise. A large part of the Chief Scientist’s role is to prioritize the research that will happen on a cruise within the designated time period. Adverse weather, mechanical difficulties, and many other factors can alter the original plans for a cruise requiring that decisions be made about what can be accomplished and what is a lower priority. One part of doing this effectively is to ensure that there is good communication among the different people working on the ship.
What is your educational/working background?I went to college at Cornell University with a major in Natural Resources. After that I had a number of different jobs before enrolling in Graduate School at the University of Miami. For my graduate research I focused on the spawning environment of sailfish and marlin in the Straits of Florida. I then came up to Rhode Island in 2008, and for the last 10 years have been working as a Fisheries Biologist at the National Marine Fisheries Service.
What is the general purpose of the EcoMon Survey? The goal of the Ecosystem Monitoring (EcoMon) surveys is to collect oceanographic measurements and information on the distribution and abundance of lower trophic level species including zooplankton. The collections also include fish eggs and larvae which can be used to evaluate where and when fish are spawning. Over the years additional measurements and collections have been included on the EcoMon surveys to more fully utilize ship time. Seabirds and Marine Mammals are being identified and counted on our ship transits, phytoplankton is also being imaged during the cruise. Finally, the EcoMon cruises serve as a means to monitor ocean acidification off the northeast United States.
What do you enjoy most about your work? I really enjoy pursuing scientific studies in which I can integrate field work, lab work and analytical work. As I have progressed in my career the balance of the work I do has shifted much more towards computer driven analysis and writing. These days, I really enjoy time spent in the lab or the field.
What is most challenging about your job?I imagine the challenge I face is the similar to what many scientists face. There are many possible scientific studies we can do in our region that affect the scientific advise used to manage fisheries. The challenge is prioritizing and making time for those studies that are most important, while deprioritizing some personally interesting work that may be less critical.
When did you know you wanted to pursue a career in science?By the end of high school I was pretty certain that I wanted to pursue a career in science. Early in college I settled on the idea of pursuing marine science and ecology, but it was not until the end of college that I decided I wanted to focus my work on issues related to fish and fisheries.
What is your favorite marine animal? Sailfish, which I did much of my graduate work on, remains one of my favorite marine animals. I have worked on them at all life stages from capturing the early life stages smaller than an inch to tagging the adults. They are really fascinating and beautiful animals to see. However, now that I live in Rhode Island I have little opportunity to work on sailfish which tend to occupy more southern waters.
In terms of local animals, one of my favorites is sand lance which can be found very near to shore throughout New England. These small fish are a critical part of the food web, and also have a really unique behavior of burying in the sand when disturbed, or even for extended periods over the course of the year. In many respects sand lance have received far less scientific attention than they deserve in our region.
Meet CTD Specialist, Tamara Holzwarth-Davis!
CTD Specialist, Tamara Holzwarth-Davis
What is your position on NOAA Ship Gordon Gunter? CTD Specialist which means I install, maintain, and operate the CTD. The CTD is an electronic oceanographic instrument. We have two versions of the CTD on board the ship. We have larger instrument with a lot more sensors on it. It has water bottles called Niskin water samplers, and they collect water samples that we use on the ship to run tests.
How long have you been working at sea? I worked for six months at sea when I was in college for NOAA Fisheries on the Georges Bank. That was 30 years ago.
What is your educational background? I have a Marine Science degree with a concentration in Biology.
What is your favorite part about your work? I definitely love going out to sea and being on the ship with my co-workers. I also get to meet a lot of new people with what I do.
What is most challenging about your work? My instruments are electronic, and we are always near the sea which can cause corrosion and malfunctions. When things go wrong you have to troubleshoot. Sometimes it is an easy fix and sometimes you have to call the Electronic Technician for support.
What is your favorite marine animal? My favorite animal is when we bring up the plankton nets and we catch sea angels or sea butterflies. They are tiny, swimming sea slugs that look gummy and glow fluorescent orange.
Meet Seabird and Marine Mammal Observer, Glen Davis!
Seabird and Marine Mammal Observer, Glen Davis
What is your position on NOAA Ship Gordon Gunter? I am on the science team. I am an avian and marine mammal observer.
What is your educational/working background? I have a bachelor’s in science. I have spent much of my 20-year career doing field work with birds and marine mammals all around the world.
Do you have much experience working at sea? Yes. I have put in about 8,000 hours at sea. Going out to sea is a real adventure, but you are always on duty or on call. It’s exciting, but at the same time there are responsibilities. Spending time at sea is really special work.
What is most challenging about your work? Keeping your focus at times. You are committing yourself to a lifestyle as an animal observer. You have to provide as much data to the project as you can.
Where do you do most of your work on board NOAA Ship Gordon Gunter?I am going to be up on the bridge level where the crew who pilots the vessel resides or above that which is called the flying bridge. On Gordon Gunter that is 13.7 meters above sea level which is a good vantage point to see birds and marine mammals.
What tool do you use in your work that you could not live without? My binoculars. It is always around my neck. It is an eight power magnification and it helps me identify the birds and sea life that I see from the flying bridge. I also have to record my information in the computer immediately after I see them, so the software knows the exact place and time I saw each animal.
What is your favorite bird? Albatrosses are my favorite birds. The largest albatross is called a Wandering/Snowy Albatross. The Snowy Albatross has the longest wingspan of any bird and its the longest lived bird. This bird mates for life and raises one chick every 3-5 years which they care for much like people care for their own babies.
Meet Seabird and Marine Mammal Observer, Nicholas Metheny!
Seabird and Marine Mammal Observer, Nicholas Metheny
What is your position on NOAA Ship Gordon Gunter? Primary seabird/marine mammal observer.
What is your educational background?I have my bachelor’s degree in Environmental Science with a minor in Marine Biology from the University of New England in Maine.
What has been your best working experience? That’s a tough one because I have had so many different experiences where I have learned a lot over the years. I have been doing field work for the past 11 years. Each has taught me something that has led me to the next position. The job I cherish the most is the trip I took down to Antarctica on a research cruise for six weeks. That was an amazing experience and something I would advocate for people to see for themselves.
What do you enjoy most about being a bird/marine mammal observer? The excitement of never knowing what you are going to see next. Things can pop up anywhere. You get to ask the questions of, “how did this animal get here,” “why is this animal here,” and correlate that to different environmental conditions.
What is most challenging about your work? You are looking at birds from a distance and you are not always able to get a positive ID. Sometimes you’re just not seeing enough detail or it disappears out of view from your binoculars as it moves behind a wave or dives down into the water. For marine mammals all you see is the blow and that’s it. So, it is a little frustrating not being able to get an ID on everything, but you do the best you can.
What is your favorite bird? That’s like choosing your favorite child! I have a favorite order of bird. It’s the Procellariiformes which are the tube-nosed birds. This includes albatross, shearwater, storm petrels, and the fulmars.
Meet Survey Tech, LeAnn Conlon!
Survey Tech, LeAnn Conlon
What is your position on NOAA Ship Gordon Gunter? I am a student volunteer. I help deploy the equipment and collect the samples.
Do you have much experience working at sea? This is my second 10-day trip. I did the second leg of the EcoMon Survey last year as well.
What is your educational background? I am currently a PhD candidate at the University of Maine where I am studying ocean currents and how water moves. I also have my master’s degree in Marine Science, and my undergraduate degree is in Physics.
When did you realize you wanted to pursue a career in science? I have always wanted to study the oceans. I think I was at least in first grade when I was telling people I wanted to be a marine scientist.
What do you enjoy most about your work on board NOAA Ship Gordon Gunter? My favorite thing is being at sea, working hard, and enjoying the ocean.
Where will you be doing most of your work? Most of the work is going to be working with the equipment deploying. I will be on the aft end of the ship.
What is your favorite marine animal? Humpback whale, but it is really hard to pick just one.
Meet Survey Tech, Emily Markowitz!
Survey Tech, Emily Markowitz
What is your position on NOAA Ship Gordon Gunter? I am a volunteer. I did my undergraduate and graduate work in Marine Science at Stony Brook University in Long Island, New York. My graduate work is in Fisheries Research.
Where will you be doing most of your work on the ship?I will be doing the night shift. That is from midnight to noon every day. I will be doing the nutrients test which helps the scientists figure out what is in the water that might attract different creatures.
Do you have much experience working at sea? Yes, actually. When I was 19, I spent two weeks on a similar trip off the coast of Oregon. We were looking for Humboldt Squid. I also worked on the university’s research vessel as a crew member on one of their ocean trawl surveys.
What are your hobbies? I love being outside. I enjoy hiking and being on the water sailing.
What is your favorite marine animal? The Humboldt Squid.
Meet Survey Tech, Maira Gomes!
Survey Tech, Maira Gomes
What is your position on NOAA Ship Gordon Gunter? My position on Gordon Gunter is a volunteer. I got this opportunity from Suffolk County Community College (SCCC) where I have recently just graduated in January 2017 with my associates in Liberal Arts. Professor McNamara (Marianne McNamara) one of my professors at SCCC, forwarded me the email that was sent from Harvey Walsh looking for volunteers to work on Gordon Gunter for the Ecosystem Monitoring Survey. They had Leg 1 which was May 16th May -May 26th and Leg 2 May 29th-June 7th. I never had been out to sea! I got super excited and signed up for both legs!
Where do you do most of your work aboard the ship? On the ship I do mostly taking care of the Bongo Nets, CTD, and CTD Rosette. With the Bongo baby and large nets I help the crew to hook them up on a cable to set out to the ocean to retrieve the data from the CTD and all kinds of plankton that get caught in the nets. Once it comes back to the boat we hose the nets down and collect all the plankton and put them in jars filled with chemicals to preserve them so we can send them back to different labs. The Rosette is my favorite! We send out the Rosette with 12 Niskin bottles empty into the water. They come back up filled with water. We use this machine to collect data for nutrients, Chlorophyll, and certain types of Carbon. We run tests in the dry lab and preserve the samples to be shipped out to other labs for more tests.
What is your educational/working background? I just finished my associates in Liberal Arts at SCCC in January. In the Fall 2017 I will be attending University of New Haven as a junior working towards my bachelor degree in their Marine Affairs Program.
Have you had much experience at sea? Nope, zero experience out at sea! Which was one of the reasons why I was kind of nervous after I realized I signed up for both legs of the trip. I am glad I did. I am gaining so much experience on this trip!
What do you enjoy most about your work? It would be the experience I am gaining and the amazing views of the ocean!
What is most challenging about your job? The most challenging part of working on the ship would be the one-hour gap between some of the stations we encounter on our watch. It is not enough time to take a nap but enough time to get some reading in. It can be kind of hard to stay awake.
What tool do you use in your work that you could not live without? Tool I could not live without working on the ship would probably be the chart that has all our stations located.
When did you know you wanted to pursue a career in science or an ocean career? Ha! This is a great question! So it all started, as I was a little girl. I always wanted to be a veterinarian and work with animals. Once I was in fifth grade my teacher inspired me to be a teacher like herself, a Special Education teacher. I felt strongly with wanting to pursue a career in that field. It was not until my second year in college when I had to take a Lab course to fulfill my requirements for the lab credits, that I took a Marine Biology Lab. Once I was influenced and aware of this side of the world more in depth, I had a change of heart. Not only that but my professor, Professor Lynch (Pamala Lynch) also influenced me on changing my major to Marine Biology. I knew from the start I always wanted to be involved with animals but never knew exactly how, but once I took her class I knew exactly what I wanted to do with my career. With that being said, my goal is to be able to work with sharks someday and help to protect them and teach everyone the real truth behind their way of life and prove you cannot always believe what you see on TV.
What are your hobbies? I really love to line dance! I line dance about at least three times a week! I absolutely love it! I have made so many friends and learned so many really cool dances! I have been doing it about two years and through the experience of getting out of my shell I gain a whole new family from the country scene back at home! I also, love catching UFC fights on TV with my friends!
What is your favorite marine animal? I have multiple favorite marine animals. My top two picks would be sharks and sea turtles!
Personal Log
The Work Continues (Thursday, June 1)
After lunch the fog began to dissipate, letting in rays of sunshine. I could see the horizon once again! You do not realize the benefits of visibility until it is gone. Yet, even with the ability to see all of my surroundings, my eyes were met with same object in every direction—water! Despite the fact that the ocean consists of wave swells, ripples, and beautiful hues of blue, I longed to see something new. Finally, I spotted something on the horizon. In the distance, I could faintly make out the silhouette of two fishing boats. I was relieved to set eyes on these vessels. It might not seem like anything special to most people but when you are more than 100 miles from land, it is a relief to know that you are not alone.
Work during my shift is a distraction from the isolation I sometimes feel out at sea. When it is time for a bongo or CTD station, my mind becomes preoccupied with the process. My brain blocks all worries during those 30 minutes. Nonetheless, as quickly as a station begins, it ends even faster. Then we are left waiting for the next station which sometimes is only 20 minutes and other times is more than two hours away. The waiting is not so bad. In between stations I am able to speak with crew members and the science team on a variety of issues: research, ship operations, and life back on land. Every person on board Gordon Gunter is an expert at what they do. They take their work very seriously, and do it exceptionally well. Still, we like a good laugh every now and then.
TGIF! (Friday, June 2)
Members of the Science Party stay busy collecting samples from the bongo nets.
At home, Friday means it is practically the weekend! The weekend is when I get to spend time with family, run errands, go shopping, or just hang around the house. For those who work at sea like NOAA Corps and NOAA scientists, the weekend is just like any other day. The crew works diligently day and night, during holidays, and yes, on the weekends. I can tell from first-hand experience that all personnel on NOAA Ship Gordon Gunter are dedicated and high-spirited people. Even when the weather is clear and sunny like it was today, they continue their duties work without wavering. NOAA crew are much like the waves of the sea. The waves in the Northeast Atlantic are relentless. They don’t quit—no matter the conditions. Waves are created by energy passing through water, causing it to move in a circular motion [Source —NOAA]. NOAA crew also have an energy passing through them. Whether it be the science, life at sea, adventure, love for their trade, or obligations back home, personnel aboard Gordon Gunter do not stop.
Today, we left Georges Bank and entered the Gulf of Maine where we will stay for the remainder of the cruise. The seabird and marine mammal observers had a productive day spotting a variety of wildlife. There have been sightings of Atlantic Spotted Dolphins, Ocean Sunfish, and Right Whales to name a few. Even though I did not get photographs of all that was seen, I am optimistic about observing new and exciting marine wildlife in the days to come.
Animals Seen
Krill (Euphausiacea)
Cod (Gadus morhua)
Flounder (Paralichthys dentatus)
Northern Fulmar (Fulmarus glacialis)
American Oystercatcher (Haematopus palliates)
Comb Jellies (Ctenophora)
Ocean Sunfish (Mola mola)
Pilot Whale (Globicephala)
New Terms/Phrases
Plankton: the passively floating or weakly swimming usually minute animal and plant life of a body of water
Phytoplankton: planktonic plant life
Zooplankton: plankton composed of animals
Larval Fish: part of the zooplankton that eat smaller plankton. Larval fish are themselves eaten by larger animals
Crustacean: any of a large group of mostly water animals (as crabs, lobsters, and shrimps) with a body made of segments, a tough outer shell, two pairs of antennae, and limbs that are jointed
Biodiversity: biological diversity in an environment as indicated by numbers of different species of plants and animals
Genetics: the scientific study of how genes control the characteristics of plants and animals
Did You Know?
Phytoplankton samples from the bongo nets.
Through photosynthesis, phytoplankton use sunlight, nutrients, carbon dioxide, and water to produce oxygen and nutrients for other organisms. With 71% of the Earth covered by the ocean, phytoplankton are responsible for producing up to 50% of the oxygen we breathe. These microscopic organisms also cycle most of the Earth’s carbon dioxide between the ocean and atmosphere. [Source — National Geographic].
Mission: Spring Ecosystem Monitoring (EcoMon) Survey (Plankton and Hydrographic Data)
Geographic Area of Cruise: Atlantic Ocean
Date: June 1, 2017
Weather Data from the Bridge:
Latitude: 40°58’N
Longitude: -67°03.9’W
Sky: Patchy Fog
Visibility: 2-5 Nautical Miles
Wind Direction: 215°SW
Wind Speed: 6 Knots
Sea Wave Height: 1-2 Feet
Swell Wave: 2-5 Feet
Barometric Pressure: 1012.5 Millibars
Sea Water Temperature: 11.2°C
Air Temperature: 11.2°C
Science and Technology Log
Approximate location of our first oceanography station [Source — Marine Traffic]The J-Frame is used to deploy equipment into the water.
En route to our first oceanography station just past Nantucket, Electronics Technician Tony VanCampen and my fellow day watch scientist Leann Conlon gave me an overview on how each sampling is conducted. This is where the pieces of equipment I described in my previous blog post (bongo nets and CTD) come into play.
Science is very much a team effort. I learned that a deck crew will be in charge of maneuvering the winch and the J-frame. Attached to the cable will be the bongo nets and the CTD which are carefully lowered into the ocean.
Bongo nets allow scientists to strain plankton and other samples from the water using the bongo’s mesh net. At each station the bongo will be sent down to within 5 meters of the bottom or no more than 200 meters. After the bongo has reached its maximum depth for a particular station, the net is methodically brought back to the surface—all the while collecting plankton and sometimes other small organisms like tiny shrimp. It usually takes about 20 minutes for the bongo nets to be cast out and returned on board with the samples.
Here I am in my gear preparing to launch the first bongo nets.
Once the bongo nets have returned from the water to the aft (back) deck, our work begins. As a part of the Science Party, it is my job to rinse the entire sample into containers, place the plankton into jars, add formalin to jars that came from the big bongos and ethanol to jars that came from the small bongos. These substances help preserve the specimens for further analysis.
At the conclusion of the cruise, our plankton samples will be sent to the Sea Fisheries Institute in Poland where scientists and lab crew sort and identify the plankton samples which gives NOAA scientist an idea of the marine environment in the areas in which we collected samples.
Flowmeter
Our Chief Scientist is David Richardson. Dave has been with NOAA since 2008. He keeps track of the digits on the flowmeter (resembles a small propeller) inside the bongo. The beginning and ending numbers are input into the computer which factors in the ship’s towing speed to give us the total volume of water sampled and the distance the bongo net traveled.
CTD (Conductivity, Temperature, & Depth)
At various oceanography stations we perform a CTD cast which determines the conductivity, temperature, and depth of the ocean. The CTD is attached to the bongo nets or the CTD is mounted within a frame, which also holds several bottles for sampling seawater along with a mechanism that allows scientists on board the ship to control when individual bottles are closed. The CTD is connected to the ship by means of a conducting cable and data are sent electronically through this cable, in real-time, to the scientists on the ship. The scientists closely monitor the data, looking for temperature and particle anomalies that identify hydrothermal plumes. As the CTD is sinking to the desired depth (usually 5-10 meters from the bottom), the device measures the ocean’s density, chlorophyll presence, salinity (the amount of salt in the water), temperature, and several other variables. The CTD’s computer system is able to determine the depth of the water by measuring the atmospheric pressure as the device descends from the surface by a certain number of meters. There is a great deal scientists can learn from launching a CTD in the sea. The data tells us about dissolved inorganic carbon, ocean water nutrients, the levels of chlorophyll, and more. From the information gathered during CTD casts, researchers can investigate how factors of the ocean are related as well as the variation of organisms that live in the ocean.
The highlighted lines are stations completed in the first leg. The circle indicates the stations for my leg of the survey.
It is fascinating to see the communication between the scientists and the NOAA Corps crew who operate the ship. For instance, NOAA officers inform the scientists about the expected time of arrival for each station and scientists will often call the bridge to inquire about Gordon Gunter’s current speed and the weather conditions. Even computer programs are connected and shared between NOAA Corps crew and the scientists. There is a navigation chart on the monitor in the bridge which is also displayed in the science lab so everyone knows exactly where we are and how close we are to the next station. The bridge must always approve the deployments and recovery of all equipment. There are closed circuit video cameras in various places around the ship that can be viewed on any of the monitors. The scientists and crew can see everything that is going on as equipment gets deployed over the side. Everyone on Gordon Gunter is very much in sync.
Personal Log
First Day at Sea (Tuesday, May 30)
Today, my shift began at 12 noon. It probably was not the best idea to have awakened at 6:00 a.m., but I am not yet adjusted to my new work schedule and I did not want to miss one of Margaret’s hearty breakfasts.
We cast out from the Naval Station Newport mid-morning. It was a clearer and warmer day compared to the day before—perfect for capturing pictures of the scenic harbor. I spent much of the morning videoing, photographing, and listening to the sounds of waves as they moved around the ship. I like to spend a lot of time on the bow as well as the flying bridge (the area at the top of the ship above the bridge where the captain operates the vessel). Before lunch, I was beginning to feel a little sea sick from the gentle swaying of the ship. I could only hope that I would find my sea legs during my first watch.
Gordon Gunter gracefully made its way alongside Martha’s Vineyard and Nantucket—two islands off the coast of Cape Cod. Standing on the flying bridge and looking out at the horizon alleviated my sea sickness. At this position I was able to observe and photograph an abundance of wildlife. Seeing the sea birds in their natural habitat is a reminder that I am just a visitor on this vast ocean which so many animals call home. Watching birds fly seamlessly above the waves and rest atop the water gives me a yearning to discover all I can about this unique ecosystem and ways in which we can protect it.
Scroll around the video to see the view from the ship’s bow in all 360-degrees.
The phrase, “to find one’s sea legs” has a meaning much deeper than freedom from seasickness. Finding your sea legs is the ability to adjust to a new situation or difficult conditions. Everything on board Gordon Gunter was new and sometimes difficult for me. Luckily, I have help from the best group of scientists and NOAA Corps crew a Teacher at Sea could ask for.
At 8:00 p.m. I was part of the leg’s first oceanography station operation. I watched closely as the bongo nets were tied tightly at the end then raised into the air by the winch and J-Frame for deployments into the sea. While the bongo nets and CTD were sinking port side, I looked out at the horizon and much to my amazement, saw two humpback whales surfacing to the water. The mist from their blows lingered even after they descended into the water’s depths.
Phytoplankton
Once the bongo nets where recovered from the ocean, the crew and I worked quickly but with poise. We used a hose to spray the nets so that all the plankton would reach the bottom of the net when we dumped them into a container. I observed fellow scientist Leann pour each bongo’s sample into a jar, which she filled with water and then a small portion of formalin to preserve the samples. It began and was over so quickly that what took about an hour felt like ten minutes.
An hour later we reached our second station, and this time I was ready! Instead of mostly observing as I did during the first time, this time I was an active participant. Yes, I have a lot left to learn, but after my first day at sea and three stations under my belt, I feel like my sea legs are growing stronger.
Scroll around the 360-degree video to see the Science Party retrieve samples from bongo nets.
Becoming a Scientist (Wednesday, May 31)
I am not yet used to working until midnight. After all, the school where I teach dismisses students by 3:30 p.m. when the sun is still shining. Not to worry, I will adjust. It is actually exciting having a new schedule. I get to experience deploying the CTD and bongo nets during day light hours and a night time. The ocean is as mysterious as it is wide no matter the time of day.
You never quite know what the weather is going to be from one day to the next out at sea. Since my arrival at the ship in Newport, Rhode Island I have experiences overcast skies, sunshine, rain, and now dense fog. But that’s not all! The forecast expects a cold front will approach from the northwest Friday. Today’s fog made it difficult for the animal observers to spot many birds of whales in the area. Despite low visibility, there is still a lot to do on the ship. After our first bongo station in the early afternoon, we had a fire and abandon ship drills. Carrying out of these drills make all passengers acquainted with various procedures to be followed during emergency situations.
Fire drill
Muster station
Lifevest
Liferaft procedures
Immersion suit
I thoroughly enjoy doing the work at each station. Our sampling is interesting, meaningful, and keeps my mind off being sea sick. So far, I am doing much better than expected. The excitement generated by the science team is contagious. I now long for the ship to reach each oceanography station so I can help with the research.
Approximate position of our last station on May 31 in Georges Bank.
Animals Seen
So far the animals seen have been mostly birds. I am grateful to the mammal and seabird observers, Glen Davis and Nicholas Metheny. These two are experts in their field and can ID a bird from a kilometer away with long distance viewing binoculars.
Glen and Nicholas on the lookout.
Wilson-Storm-Petrel
Sooty Shearwater
Northern Gannett
Manx Shearwater
Red-throated Loon
Herring Gull
Double-crested Cormorant
Roseate Tern
Common Loon
Common Tern
Humpback Whale
Sand Lance
New Terms/Phrases
[Source — Merriam-Webster Dictionary]
Barometer: an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude.
Altimeter: an instrument for measuring altitude; especially an aneroid barometer designed to register changes in atmospheric pressure accompanying changes in altitude.
Flowmeter: an instrument for measuring one or more properties (such as velocity or pressure) of a flow (as of a liquid in a pipe).
Salinity: consisting of or containing salt.
Conductivity: the quality or power of conducting or transmitting.
Chlorophyll Maximum: a subsurface maximum in the concentration of chlorophyll in the ocean or a lake which is where you usually find an abundance of phytoplankton.
Ethanol: a colorless flammable easily evaporated liquid that is used to dissolve things
Formalin: a clear, water like solution of formaldehyde and methanol used especially as a preservative.
Did You Know?
The average depth of the ocean is about 12,100 feet. The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench. Challenger Deep is approximately 36,200 feet deep. It is named after the HMS Challenger, whose crew first sounded the depths of the trench in 1875. [Source — NOAA Official Website].
Since my expedition began you might have wondered, “How is he even sending these blog posts from so far out at sea?” That is a legitimate question. One I had been asking myself. So, I went to Tony VanCampen, Gordon Gunter’s Chief Electronics Technician for the answer. You may have guessed it; the answer has something to do with Earth’s satellites. Providing internet on ships is different than on land because, well, there is no land. We are surrounded by water; there are no towers or cables.
It has been one week, seven days since I first arrived on board NOAA Ship Gordon Gunter. Like the virga (an observable streak of precipitation falling from a cloud but evaporates or before reaching the surface) we experienced this morning, my time aboard the ship is fleeting, too. As the days dwindle until we disembark, I find myself attempting to soak in as much of the experience as I can. Suddenly, I am looking at the horizon a little longer; I pay closer attention to the sounds made by the ship; and I pause to think about how each sample will tell us more about the Earth’s mysterious oceans. Yes, a week has passed, but now it is the first day of a new week. With two days and a “wakeup” remaining, I intend to embrace each moment to its fullest.
No matter the day or time, NOAA Ship Gordon Gunter runs like clockwork. Today, however, the ship seemed to be buzzing with a different kind of energy. NOAA Corps Officers and the crew have been moving around the ship with an ever greater sense of purpose. Believe me, there is never an idle hand aboard Gordon Gunter. One major factor that heavily influences the ship’s operations is the weather. The National Weather Service has issued a gale warning for the Gulf of Maine. Gale warnings mean maritime locations are expected to experience winds of Gale Force on the Beaufort scale.
As you can tell, this blog post’s theme revolves around positioning and tracking. So, I decided to ask the seabird and marine mammal observers about the technology and methods they use to identify the positioning of animals out on the open ocean. Our wildlife observers, Glen and Nicholas, have a military-grade cased computer they keep with them on the flying bridge while looking for signs of birds and whales. The GPS keeps track of the ship’s position every five minutes so that a log of their course exists for reference later. When Glen or Nicholas identify a bird or marine mammal, they enter the data into the computer system which records the time and their exact GPS position. To know how many meters out an animal is, observers use a range finder.
