Heather O’Connell: Understanding Hydrographic Surveying and Life on a Ship, June 4, 2018

NOAA Teacher at Sea

Heather O’Connell

NOAA Ship Rainier

June 7 – 21, 2018

Mission: Hydrographic Survey

Geographic Area of Cruise: Seattle, Washington to North Coast of Kodiak Island, Alaska

Date: June 4, 2018

Weather Data from the Bridge

This evening as I write the blog in port in Seattle, Washington, it is partly cloudy with a low of 53 degrees Fahrenheit. There are west southwest winds at 10-14 miles per hour.

Science and Technology Log

NOAA Ship Rainier surveyed parts of Possession Sound last month and survey technicians created two and three dimensional maps with the depths of the sea floor around Everett, Washington. The 31 square nautical mile maps were developed after processing data utilizing single-beam and multi-beam sonar over a three week period. A colored depth range map was generated and superimposed onto a previous nautical map. The fact that the contour lines matched proved the accuracy of the survey. An exciting part of the Puget Sound survey proved to be a shipwreck from an Alaskan fishing boat that burned when anchored in 1982. 

Color map generated on top of previous nautical map
Color map generated on top of previous nautical map

Before completing the survey, a computer-generated polygon plan was drawn to section out the areas that each boat would cover. While Rainier has the ability to survey large areas, it was out of the water being repaired due to damage to the rudder. The four launch boats and one small shoreline ship covered the entire area. The launch boats utilized an efficient multi-beam sonar to generate the map in conjunction with a single beam sonar on a shoreline ship. The single beam sonar is located on a jet boat, rather than a boat with a propeller, which has less draft, making it a better platform for surveying in shallow water. 

Multi-beam sonar has the ability to quickly and accurately collect data on the depth of the sea floor. NOAA Ship Rainier and the four launches each have a multi-beam sonar where the transmitter sends out a sound pulse and the receiver creates a 512 beam from the returning echo of the sea floor.  The 512 beam swath, or fan shaped area of sound beams, generated from the receiver creates an image on the computer of the depth of the sea floor. The sound travels to the ocean floor and then back to the receiver in the boat, located perpendicular to the transmitter in a Mills Cross orientation. The time return, or time it takes to send out a signal and return to the receiver is then applied to an algorithm that determines the depth of the ocean floor. Things to consider in the speed of sound include the source level of the sound, the transmission loss from the sound traveling, and the noise level from other materials. Further factors that affect sound travel in the ocean include the type of sediment. Soft sediment like mud and silt absorb sound while hard materials like rock, granite and metal reflect sound energy. The tides must also be recorded and utilized to determine the actual depth of the water. All of these factors are put into the formula used for calculating sea depth.

A multi-beam sonar in the Mills Cross orientation on the underside of a launch boat
A multi-beam sonar in the Mills Cross orientation on the underside of a launch boat

Collecting data in deeper water is easier than surveying shore-line data. The near-shore data uses single resolution for more detail and the outer depth information utilizes a much higher resolution, or coarse resolution. The combined variable resolution allows for the multiple resolution image to be put on one surface, generating specific maps. Shoreline surveys have a narrow swath meaning there are closer runs that must go back and forth in order to cover the same range as a deep water survey. The multi-beam swath may only reach 8 meters when close to shore, but may be as wide as 60 meters when it can travel further into the ocean. So shallow water takes longer to survey and deeper water can be surveyed faster.

Once all of the data is collected, the points from the beam become pixels on a two dimensional or three dimensional computer generated map.  The time return charts are put into the Caris software, which is like the arc GIS of nautical maps. The software produces a map with varying depths of the ocean floor represented by different colors. Hydrographic Survey technician Amanda generated this accurate 3-D image of the shipwreck around Everett after processing the data.

Boat Wreck
Pings from multi-beam sonar become pixels in this 3-D image of the boat wreck in Possession Sound

Survey technician Amanda also shared her knowledge on removing the noise from images before generating maps. Often times, the sonar waves create some interference that doesn’t match up with the rest of the map and must be removed. Different ships survey the data using different colors so that when the maps are combined, the differences are apparent. The role of processing data is completed by survey technicians during the off season or when the ship is not actively surveying, such as when it is in port. Technicians have a one hundred and twenty day time period to complete data processing to the established specifications post survey. Data is then sent to the Pacific Hydrographic Branch for quality control and eventual submission to the Marine Chart Division for eventual application to nautical charts. 

Personal Log

I arrived early morning on Saturday, June 2nd and after taking a taxi to the Seattle Coast Guard base, a patrolling officer brought me to Ship Rainier. I called the bridge and informed the officer on watch that I had arrived. Charlene, the A.B., or able bodied seaman, was on watch and gave me a basic tour, although I only assimilated a small portion with my sleep-deprived, jet-lagged brain. Luckily, I had haphazardly met my roommate. She showed me the tight sleeping quarters with locking drawers and cabinets to keep all things stationery, along with a small sink in the corner. The bunk consisted of two metal beds stacked on top of each other with only enough room to lay down. Since there are only two of us staying in the room for four, it is reasonably comfortable. There are two bathrooms, or heads, along with two showers located in the hall outside of bunk C-09.

After resting for quite some time, I joined Audrey and Mike, two hydrographic survey technicians, on an adventure to Pike’s Marketplace on this atypically warm Seattle afternoon. Open faced crab and wild salmon sandwiches were enjoyed overlooking the Puget Sound and the bustling market. Exploring downtown Seattle on foot proved to be a graceful way to transition to this new way of life at the port.

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Pike’s Marketplace in Seattle

On Sunday, I went for lunch with Dan and Johnny from the engineering department. These two were working hard to cut a metal plate on the stack so that they could access inside for repairs. Preparing to embark on a ship for a week in transit requires tremendous work. I have thoroughly enjoyed observing the process for this journey and look forward to leaving the port when the time comes.

Not only do I enjoy living on a ship at port, but I love learning about the different lifestyle of the Rainier crew. Some long term ship employees have Ship Rainier as their address and reside in Newport, Oregon on this ship during the off season during the winter. Oftentimes, they are out to sea for three weeks at a time during the field season, then they port for several weeks.

Today was the first day a meal was served on the ship and I came across several familiar and new faces at breakfast. After breakfast I went to the prop room and the holodeck where the officers and technicians were analyzing data. At 1300 there was an all hands meeting with an update from the Captain and Chief Officer or CO. Next, I received damage control, or D.C., from Michelle Levano who also grew up on Long Island, New York. The training included two other new junior officers, Stephanie and Harper, who studied Environmental Conservation and Aeronautical Engineering, respectively. Christopher, a new A.B. and Ray from engineering also joined us on the walk around the ship where we learned the different signals for various emergencies that might take place on the ship. I also learned where the lifeboats are located and the protocol for a man overboard, M.O.B.,or what to do if and when you have to abandon the ship.

So, all in all my time on the ship and in Seattle has had a balance between the new structure of life on a ship with the freedom to explore a city. I’m excited to experience how Rainier functions once we leave the port life on Thursday at 1300 hours. I’m also curious what it will be like to be stationed to a 231 foot vessel when I’m used to the freedom of exploring.

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Sunset from the Seattle Coast Guard Base

Did you know?

There are two types of NOAA employees on ship Rainier. There are NOAA employees and also NOAA Commissioned Officer Corps employees who wear uniforms and operate like U.S. military officers. They share the uniform of Coast Guard members and are one of the two unarmed branches of the military.

 

Victoria Cavanaugh: Patch Tests in Puget Sound, April 20, 2018

NOAA Teacher at Sea
Victoria Cavanaugh
Aboard NOAA Ship Fairweather
April 16-27, 2018

MissionSoutheast Alaska Hydrographic Survey

Geographic Area of Cruise: Southeast Alaska

Date: April 20, 2018

Weather Data from the Bridge

Latitude: 47° 44.116′ N
Longitude: 122° 32.070′ W
Sea Wave Height: 1 foot or less
Wind Speed: 5-8 knots in the AM, then less than 5 knots in PM
Wind Direction: SSE, variable
Visibility: 16.1 km
Air Temperature: 8oC  
Sky:  Scattered Clouds

Science and Technology Log

For the past two days, NOAA Ship Fairweather has been anchored in Port Madison,  part of Puget Sound off the coast of Seattle, Washington.  The crew is currently stopped for a few days in Puget Sound before heading north to Alaska in order to complete the yearly Hydrographic Systems Readiness Review (HSRR).  During HSRR, the survey techs test all of the hydrographic survey equipment that will be used during the field season.  It’s essential to test and calibrate the equipment at the start of the season in order to ensure the data accuracy for upcoming projects.

The first part of HSRR began Thursday morning. Because NOAA Ship Fairweather spent winter at dock in Yaquina Bay, barnacles and algae were able to grow plentifully on the ship’s bottom, making it their home.  The dive team deployed to check the Fairweathers hull and clean off the sonar transducers, removing any biofouling (sea life that had built up on the ship’s bottom) from the winter in port.

 

On Thursday afternoon and Friday, the next phase of HSRR began.  On Friday, I was able to spend most of the day on the survey launches as a few of the survey techs conducted patch testing (a process for precisely determining an orientation of the launch’s sonar).  NOAA Ship Fairweather has four 28-foot launches, and I spent the morning on 2808, and then the afternoon on 2806.  When working on projects in relatively shallow waters, the Fairweather deploys these launches to collect data more efficiently as four launches can work on a project simultaneously.

Safety Meeting Before Launches Deploy
Safety Meeting Before Launches Deploy
One of the Launches is Lowered from F Deck (the 6th Deck Up)
One of the Launches is Lowered from F Deck (the 6th Deck Up)
One of the Launches Being Lowered into Puget Sound
One of the Launches Being Lowered into Puget Sound
A Launch Begins Patch Tests
A Launch Begins Patch Tests

The launches are driven by a coxswain, often a NOAA officer or deck hand, while a Hydrographer-in-Charge (HIC) plans track lines for the vessel to run.  Sometimes, a coxswain-in-training or HIC-in training will also join the launch.  As part of HSRR, the HIC chose a few track lines for the launch to run, and the coxswain, drove the launch back and forth on the lines at various speeds.  While we ran the track lines, the HIC was able to gather data by sending an acoustic ping from the sonar which reflects off the seafloor and is then recorded when it returns to the sonar.  The two-way travel time of the pin is measured, which (when coupled with the speed of sound through the water) can be used to calculate the water depth.

The Coxswain Helps Deploy the CTD
The Coxswain Helps Deploy the CTD
The Coxswain's Seat
The Coxswain’s Seat
The HIC Readies the Launch as We Pull Away from NOAA Ship Fairweather
The HIC Readies the Launch as We Pull Away from NOAA Ship Fairweather
The HIC and HIC-in-Training Prepare the CTD
The HIC and HIC-in-Training Prepare the CTD
The HIC Checks Data Being Collected as the Launch Runs Patch Tests
The HIC Checks Data Being Collected as the Launch Runs Patch Tests

While in Port Madison, the crew will send all four of the Fairweatherlaunches out to run the same track lines and to ensure the data collected by each launch matches.  At night, after the HIC’s have gathered data, the survey techs spend hours in the plot room, looking at the day’s data and checking for any discrepancies.  The survey techs correct any errors in the data and the saved changes are sent back to each launch’s computing system.  This is known as calibrating.  By running patch tests and calibrating the launches to one another, survey techs are able to guarantee that data collected throughout the season is precise, no matter which launch is used for a given area.

The CTD Up Close: The Powerful Little Machine that Measures the Speed of Sound!
The CTD Up Close: The Powerful Little Machine that Measures the Speed of Sound!

Data Being Collected from the CTD on the Launch Monitor: Conductivity (Salinity), Temperature, and Depth (Pressure)

The CTD Stands Ready to Be Deployed on the Launch's Deck
The CTD Stands Ready to Be Deployed on the Launch’s Deck

Before and after running the patch tests, the crew deploys a CTD  The CTD measures the conductivity, temperature, and depth of the water.  The survey techs are interested in the CTD readings because this information helps them assess the speed of sound (or the sonar waves) in a given body of water.  In turn, knowing the speed of sound and the amount of time the CTD takes to reach the ocean floor, allows survey techs to calculate ocean depths.  (The classic distance equation, d=rt!)

Data Being Collected from the CDT on the Launch Monitor
Data Being Collected from the CDT on the Launch Monitor

Conductivity refers to the ability of the given water sample to pass an electrical current.  Survey techs are interested in the conductivity, because the conductivity is another way to gauge the salinity (or “saltiness” of the water).  The more salt in a sample of ocean water, the greater the ocean water’s conductivity and the faster the sound waves travel.  Next is temperature.  Water closer to the surface is warmer, and thus, sound will travel faster closer to the surface.  Conversely, the cooler the temperature, the slower the sound waves travel.  The final measurement is depth, or pressure.  The deeper the water, the greater the pressure.  Greater depths increase the speed of the sonar waves.  The average speed of sound in the water is 1,500 m/s.  By comparison, the average speed of sound in air is about 340m/s.

Night Processing of Data in the Plot Room
Night Processing of Data in the Plot Room

After dinner, survey techs are assigned to night data processing.  I joined one of the survey techs, Ali, who was kind enough to explain how the launch data is analyzed.  One interesting note is the red light in the plot room.  The red light is used because the plot room is next to the bridge, where the officers and deck crew keep watch.  The red lights help the crew keep their eyes ready for night watch, so those processing data also work under red lights.

A "Painting" of Collected Data: Different Colors Represent Differing Depths
A “Painting” of Collected Data: Different Colors Represent Differing Depths

In the above photograph, notice the various colors representing the differing ocean depths.  In this case, red is shallower and purple is deeper.  Notice that as the survey tech, hovers over a datapoint with her mouse, the data collected by Fairweather launch 2807 is shown as a coordinate with a depth of 168.3 meters.  Creating a color “painting” of the data points is helpful because the changing colors help the survey techs understand the slope of the ocean floor; closer together colors mean a steeper slope or a sharp increase in depth, whereas larger swatches of the same color mean a flatter seafloor.

The green lines in the picture represent the “lines” that the launch ran, meaning the area where the coxswain drove back and forth in the boat at varying speeds.  Notice that there are two lines as the launches always run two lines to ensure accuracy.  As the launch is driven back and forth in the water, the transducers on the bottom of the launch emits multi-beam sonar, and sound waves ping off the ocean floor several times per second, sending sound waves back to the launch which are translated into millions of data points by the survey techs.

The survey techs use various computer programs and imaging software to analyze the data.  Above, the survey techs can look at a 3D cross-section of the data, which essentially looks like a virtual map of the sea floor.  In the bottom right corner, the survey tech compares two lines for accuracy, one with data points colored red, the other green.  When the lines line up exactly, precision is ensured.  The survey techs analyze the data to make sure the rocking of the boat in any direction (front/back, side-to-side, etc.) won’t interfere with mapping accuracy later in the season.  Finally, survey techs compare their work with each other to ensure precise calibration.

Personal Log

One of my favorite things about being onboard NOAA Ship Fairweather are the tremendous views every time I look outside.  Sunrises and sunsets are spectacular.  We’ve had some really great weather over the last few days, and though it has been a bit chilly, the skies have been fairly clear.

Sunset in Port Madison
Sunset in Port Madison
Mount Rainier at Sunset
Mount Rainier at Sunset
Pulling Up the Anchor in Port Madison Shortly After Sunrise
Pulling Up the Anchor in Port Madison Shortly After Sunrise
Brainbridge Island, Washington
Brainbridge Island, Washington
Two of the Crew Checking the Anchor Line Angle During Anchor Recovery
Two of the Crew Checking the Anchor Line Angle During Anchor Recovery
Puget Sound
Puget Sound
Mount Olympia National Park
Mount Olympia National Park

 

Did You Know?

On nautical charts (or maps), units of measurement vary.  Ocean depths can be marked in feet, meters, or fathoms. Fathoms, like knots, is another term steeped in nautical history.  When sailors used to measure ocean depths by hanging rope over the side of a vessel, they would pull in the line, looping the rope from hand to hand.  The distance of the rope from one outstretched hand to another (a sailor’s wingspan) became known as a fathom.

Challenge #2  – Devotion 7th Graders: Measure your wingspan, the distance from one outstretched hand to another.  Then measure four other friends, classmates, or family members’ wingspans.  What is the median wingspan for you and your friends?  What is the mean wingspan for you and your friends?  What is the mean absolute deviation for your collective wingspans?  One fathom is equal to 1.8288 meters or 6 feet.  If one fathom is the average sailor’s wingspan, how do your wingspans compare?  Present your findings on a 8.5x11inch paper as a mini-poster.  Include illustrations and calculations.

 

 

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Victoria Cavanaugh: Newport, Oregon to Port Madison, Washington, April 17, 2018

NOAA Teacher at Sea
Victoria Cavanaugh
Aboard NOAA Ship Fairweather
April 16-27, 2018

MissionSoutheast Alaska Hydrographic Survey

Geographic Area of Cruise: Southeast Alaska

Date: April 17, 2018

Weather Data from the Bridge

Latitude: 44.64°N
Longitude: 124.04°W
Sea Wave Height: SW 3 ft at 5 seconds. NW swell 9 feet at 10 seconds.
Wind Speed: 11 to 14 kt. Gusts to 20kt.
Wind Direction: SSW
Visibility: 15 kilometers
Air Temperature: 7.8oC  
Sky:  AM showers, scattered clouds in PM.

Science and Technology Log

Though we were originally set to sail on Monday afternoon, predicted 10-15 foot swells for Monday evening delayed our departure from Newport, Oregon until Tuesday afternoon.  The extra time in Newport allowed me to spend some time in the Plotting Room aboard NOAA Ship Fairweather.  The Plotting Room is one of the main work areas for the hydrographers, the NOAA technicians who both plan the missions and then process data collected after each launch.

 

One of the friendly surveyors, Bekah, gave me an overview of the upcoming project which will focus on the area west of Prince of Wales Island.  The hydrographic survey technicians first receive an assignment, known as a project, from NOAA.  Next, technicians, break each project into “sheets,” or smaller sections, which are assigned to each technician or NOAA officer.  From there, the technicians further break down the sheets into “polygons.”  The polygons are like mini-sections of a given area of the map, and are sized depending on a number of factors including the amount and distance from the shoreline as well as the depth.  The polygons are assigned one-by-one to the survey launches to complete.

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A Sheet from the Project
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A Sheet Sectioned into Polygons (in Blue).  Notice the Topographical Markings on the Islands.

One of NOAA’s primary goals with hydrographic surveying and updating the charts is to obtain more accurate data on the Pacific seafloor and its features in order to promote safe marine navigation.  NOAA is part of the US Department of Commerce, and so updating navigational charts will help improve safe passage of all ships, especially commercial cargo ships.  As commercial ships grow larger and heavier and global trade continues to increase, improved navigational charts allow for increased shipping drafts (how deep the vessel extends below the water, which is a function of how much cargo they can load), which in turn creates a positive economic impact for the national economy.

Today, NOAA Ship Fairweather uses sonar to measure seafloor depths.  Previously, hydrographers used lead lines.  Essentially, lead lines were dropped over the ship’s rail and lowered until they rested on the seafloor.  While lead lines are occasionally still used today in very shallow areas close to shore, creating new seafloor maps with sonar allows for much greater precision, are much less labor intensive, and allow for continually measuring the depth.

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ENS Linda Junge Holding a Lead Line

Personal Log

On Tuesday afternoon, at 14:00 (2pm), we set sail from Newport, Oregon and began making our way north to Port Madison, near Seattle Washington.  After spending a few days at dock in Newport, I was eager to get underway, and the rest of the crew, many of whom had been in Newport for much of the winter, also seemed eager to begin the season.  While the views leaving Oregon were spectacular, the wide open seas proved a bit of a challenge.  I quickly learned that heading to the open deck on the back of the ship, the fantail, was an ideal place to catch some respite from feeling seasick.  Later in the evening, the waves subsided a bit, and by morning the seas felt much calmer.

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On the Dock in Newport, OR
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A Beautiful Last Night in Newport
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Passing Under the 982 meter long Yaquina Bay Bridge as We Leave Newport
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Heading Out to the Pacific
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Leaving Yaquina Bay
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Some Really High Waves Crashing on the Fantail!
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A Map Showing Our Departure Port (Newport) and Arrival (near Seattle)
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On the Flying Bridge of the NOAA Ship Fairweather as We Depart Newport

Each day, the POD (Plan of the Day) is updated with important meetings, mealtimes, and general updates.  Emergency responsibilities are also posted, and one of the first things we did once we were underway at sea was practice drills for a fire and abandon ship.  As part of the abandon ship drill, I had to practice putting on the “survival suit.”

Most aboard NOAA Ship Fairweather work several four hour shifts or “watches” each day, and some may also work a few additional hours of overtime.  Perhaps for this reason, meal times seem a bit early with breakfast at 7am and lunch at 11am.  Dinner, when in port is at 4pm, and at sea, it’s at 5pm.   Meals are prepared in the ship’s galley (or kitchen), and served buffet style.  The crew eats together in the mess (or main dining area).  In addition to meals, snacks such as cereal, fruit, and icecream are available 24/7 and some additional options are available for those on night watches who may eat “night lunch.”  Meals are a great time to meet the many aboard Fairweather and better understand how the different teams–the wardoom, the engineers, the survery technicians, the deck, the stewards, the ET, and the visiting scientists–all work together.

Did You Know?

NOAA Ship Fairweather is celebrating its 50th birthday this year!  Fairweather was designed by the US Deparment of Commerce Maritime Administration and built in Jacksonville, Florida by Aerojet-General Shipyards.  Fairweather was commissioned in October 1968 and is homeported in Ketchikan, Alaska.  Fairweather’s sister ship is NOAA Ship Rainier which is also part of NOAA’s Pacific Fleet.

NOAA Ship Fairweather has a field season of about 220 days per year.  At 231 feet long, it can house roughly 57 crew and weighs 1591 tons!  While cruising, Fairweather averages 13 knots, and while surveying, the ship travels 6 to 10 knots.

By the way, you might be wondering what exactly is a knot.  As the story goes, ancient mariners used to tell how fast their ship was moving by throwing a piece of wood tied to a rope overboard and measuring how much time it would take the wood to travel from the bow (front) to the stern (back) of the ship.  According to historian Elizabeth Nix, by the 16th century, this method was updated to include knots tied at certain intervals in the rope that was thrown overboard.  Sailors began to count the knots to determine a ship’s speed, and eventually a “knot” became a nautical mile per hour.

Nautical miles, by the way, refer to the Earth’s circumference, and are different from “land miles” which reflect the distance it takes to walk 1,000 steps (according to the Romans) or 5,280 feet (according to Queen Elizabeth).  Today, one nautical mile is understood as 1,852 meters or 1.1508 miles.  Or, more practically, it is one minute of latitude (where 60 minutes of latitude = 1 degree).

A knot, then, is a measure of speed used by ships and planes.  A rate of one knot refers to covering a distance of one nautical mile in one hour.

Challenge Question #1:  Devotion 7th Graders — Can you convert the speed of your favorite land animal, your favorite sea animal, your favorite bird,  your favorite car/plane/boat, and this year’s Boston Marathon winner (male or female) to knots?  Show the work to justify your conversions and then create an illustration comparing your choices.

 

 

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Britta Culbertson: An Introduction, August 28, 2013

NOAA Teacher at Sea
Britta Culbertson
Aboard NOAA Ship Oscar Dyson
September 4-19, 2013

Mission: Juvenile Walley Pollock and Forage Fish Survey
Geographical Area of Cruise: Gulf of Alaska
Date: Wednesday, August 28, 2013

NOAA instrumentation
Britta checking out some NOAA instrumentation at Summit Station in Greenland

My name is Britta Culbertsonand I am currently serving as anAlbert Einstein Distinguished Educator Fellow in Washington, DC.  Prior to my fellowship, I was a high school science and art teacher in Seattle, Washington at The Center School.   I am serving my fellowship in NOAA’s Office of Education and have spent the last year getting exposed to many aspects of NOAA’s education efforts.

Einstein Fellows are K-12 science, technology, engineering, or math (STEM) educators who come from all over the United States after a competitive selection process to serve in federal agencies or on Capitol Hill.  They typically serve for the duration of one school year.  Fortunately, I was offered to stay one more year in my office and will complete my second year in July 2014.  Through my role as an Einstein Fellow, I have been able share NOAA resources with teachers at national conferences, work on the education website, and network with a community of STEM professionals in Washington, D.C. among other things.  One task that I hope to accomplish this year is figuring out a way to make real-time NOAA datasets more accessible to teachers.

I am really excited about the opportunity to be a NOAA Teacher at Sea to learn more about the fisheries research conducted by NOAA scientists and to see if there might be opportunities to share real data from my cruise with students and their teachers.

After spending a year meeting Teacher at Sea alumni and hearing about their experiences, I am overjoyed to embark on my own cruise and to have a chance to work with scientists in the field.  I think these real-life experiences are crucial for teachers because it allows them get in touch with the scientific process in the field as opposed to the artificial environment in which we conduct experiments in the classroom.  Sharing these real-life research experiences with students is vital to their understanding of science.

Flat White
Britta at Summit Station, Greenland in “flat white” conditions (elevation 10,530 feet)

I spent part of my summer in Greenland working with high school students from Denmark, Greenland, and the United States.  During my three weeks there, I was inspired by the way the students were more interested in the research they conducted.   Being in the field made it more relevant and the students were more engaged.  We had visual teleconferences with scientists who were studying climate change and also worked with scientists who were in Greenland conducting research.  It was such a phenomenal experience for everyone involved.  I wish to use this trip as a model for my future classroom experiences and I am hoping that some of the scientists on my cruise might be willing to stay in touch with me and my students in the future.  Not only do I wish to incorporate more “real world” experiences and data into my science teaching, but I hope to connect more students with scientists.

Russell Glacier
Britta near Russell Glacier, Greenland

I will be departing Washington, D.C. on September 2 and will travel via Seattle and Anchorage to reach my final destination in Kodiak, Alaska.  I will board NOAA’s ship the Oscar Dyson on September 4 at port in Kodiak.  From Kodiak, we will head into the Gulf of Alaska and eventually make our way toward Prince William Sound, which incidentally, was the site of the disastrous Exxon Valdez oil spill in 1989.  During the cruise, we will be collecting and studying walleye pollock.  If you’ve ever eaten fish sticks or imitation crabmeat, you were most likely eating pollock!  According to NOAA’s Fishwatch.gov, “The Alaska pollock fishery is one of the largest, most valuable fisheries in the world.”

Our cruise has several objectives ranging from the study of walleye pollock to physical and chemical oceanography.  I’m also excited about one aspect of the cruise, which is a gear comparison to examine the catch differences for each species between the anchovy trawl and the CamTrawl. We will also be describing the community structure, biomass, and vitality of the other swimming, aquatic organisms we capture along with pollock.  These organisms include capelin, eulachon, Pacific cod, arrowtooth flounder, sablefish, and rockfish.  Additionally, we will examine species that typically prey upon pollock and we will measure the environmental variables that could affect pollock ecology.

It was a wonderful coincidence that I happened to be in Washington State visiting the Olympic Coast National Marine Sanctuary (OCNMS) the NOAA Alaska Fisheries Science Center  when the science team for my cruise had their pre-cruise meeting.  I was able to attend in person and meet the scientists with whom I will spend the next three weeks.  I am really looking forward to working with them!  Visiting the OCNMS was a special treat before my upcoming cruise.  It was pretty awesome to stand along the Olympic Coast and check out all of the tide pools and other things like the huge whale skeleton I found.  In a few days instead of being on the edge of this massive ocean, I’ll be on a boat discovering what is in the depths of the same ocean. I’m looking forward to leaving the hot and humid D.C. weather behind for the cooler weather in Kodiak.  Next time you hear from me, I’ll be a teacher at sea!

Whale Skeleton
Whale skeleton on Lake Ozette Trail, Olympic Coast National Marine Sanctuary
Sea Stack
Sea stack on Lake Ozette Trail at the Olympic Coast National Marine Sanctuary

Marian Wagner: Preparing for Departure, August 12, 2011

NOAA Teacher at Sea
Marian Wagner
Aboard R/V Savannah
August 16 — 26, 2011

Mission: Reef Fish Survey
Geographical Area: Atlantic Ocean (Off the Georgia and Florida Coasts)
Date: August 12, 2011

Introductory Log

Naturalizing at my home beach in Seattle, Golden Gardens

I’m off to live the life of a NOAA research scientist aboard the Research Vessel (R/V) Savannah Our work is part of a population monitoring mission (estimating number of fish in population), doing fishery-independent sampling of reef fishes in the Atlantic off the coasts of Georgia and Florida.  See “terms defined” below to learn more.

Preparing to work with and make the most of my time with a team of scientists as a NOAA Teacher at Sea (TAS) participant means I have a lot to learn in a short amount of time!  This morning, I leave Seattle, and tonight I arrive in Savannah, GA.  I can’t believe this day has finally arrived!

I teach 3rd and 4th grade at Salmon Bay School in Seattle Public Schools, and students and families will tell you teaching SCIENCE! is my passion.  Central to my passion in teaching science is the importance of teaching students and teachers that we must better understand and protect the earth’s resources with which we are interdependent, and develop a more responsible and sustainable relationship with how we use these resources.  The fundamental goal of all my various ways of incorporating this NOAA research experience into my teaching will be to help students and teachers understand the ocean better and our relationships with it, and use this knowledge to protect the world’s oceans.

I have never had first-hand experience in conducting field research (outside of research with children for educational purposes), and I believe it is especially essential in the leadership roles I have come to serve in science education that I have this foundational knowledge first-hand of HOW research is conducted in the field.  I look forward to getting my hands dirty! (salty?)

A few days ago I received word that I have passed all my requirements to be endorsed to teach 6-12 grade biology and this experience will stretch me beyond coursework and provide a true field research experience, especially essential if I decide to use my biology endorsement to teach middle school or high school level biology, where I will draw upon this research experience in many valuable ways, especially by sharing methods of conducting research and by exposing students to the career options of working as a field scientist.

My 3rd and 4th graders (and my alumni too, I hope!) are sure to hear extensively about this field science research experience that I am about to dive into!  Time to dress for the airport!

Terms Defined:

Fishery-independent sampling means data are collected separately from the landings of any commercial fisheries, and thus can be separated from economic factors that would compromise population trends based on how many fish are caught in a year (e.g., price of fish or fuel).  So fishery-independent data are the closest we can come to a census, and are some of the most reliable data fed in to a “stock assessment”. The data we collect will have direct implications for stock assessment of these fish and ecosystem-based management of southeast U.S. marine fisheries.  Here’s a link  to more information on the work we are doing.

Seattle-ites: For more information, here’s a link to Federal stock assessment work in the Seattle area, perhaps more helpful because you might recognize your local species and habitats.