Jeff Lawrence, May 27, 2006

NOAA Teacher at Sea
Jeff Lawrence
Onboard NOAA Ship Rainier
May 22 – June 2, 2006

Mission: Hydrography survey
Geographical area of cruise: Alaska
Date: May 27, 2006

Weather Data from Bridge
Visibility: Fog 0.0 miles
Wind direction: 310 deg. NW
Wind Speed:  8 knots
Sea level pressure: 1011 mb
Present weather: Very foggy with small swells
Temperature:  46 deg. wet/dry 46 deg.

Launch boat in action in Wrangell Narrows
Launch boat in action in Wrangell Narrows

Science and Technology Log 

Yesterday I was invited out on a boat launch with LTJG Abigail Higgins, Junior Survey Tech Tonya Watson, and Deck Utility Man Kenneth Keys.  We were sent out to set a couple of buoys to mark locations where divers from the RAINIER could go down later in the day and take a closer look at some peculiar features from the sonar soundings.  We also had to run a couple of survey lines around an object near Petersburg Harbor on something peculiar Captain Guy Noll had spotted in the sonar record.  I was able to pilot the launch for part of the trip and DU Keys gave me a quick course on navigation around marked points in the Wrangell Narrows.  This was really cool!  LTJG Higgins showed me how the boat collects data to take back to the RAINIER where it is processed to be used on navigation charts.

When on a boat launch you may have to take lunch with you because you will not be back to the RAINIER in time for lunch. The skies were clear and full of intense Alaskan sunshine, which makes it feel warmer than the actual temperature outside. It was a beautiful day enjoyed even the more by having lunch on the boat. When the launch boat returns to the RAINIER the data is downloaded to the ships computers where it is processed so that charts and graphs can be made or updated. Below physical scientist Shyla Allen from the Pacific Hydrographic Branch assist ENS Laurel Jennings in making plans for running lines at the next stop near Sitka. ENS Jennings is in her first year on the RAINIER and a part of the NOAA officer corps aboard the RAINIER.

Crunching the numbers are: Shyla Allen (back) and ENS Laurel Jennings (front)
Crunching the numbers are: Shyla Allen (back) and ENS Laurel Jennings

Personal Log 

Today was an absolutely beautiful day in SE Alaska.  I really enjoyed working with the survey technicians and people aboard the RAINIER.  I have learned much more than I thought ever existed when comes to navigating the waters, coastlines, and harbors of Alaska. Today we are traveling to Biorka Island, which is northwest of where we were the previous week.

Questions of the Day 

When approaching a green buoy from sea in a channel in North America which side should your boat approach on?

When approaching a red buoy from sea in a channel in North America which side should your boat approach on?

Assignment 

Plot a course if you were the pilot of the RAINIER that you would follow from Wrangell Narrows near Petersburg to Biorka Island.

Linda Armwood, April 29, 2006

NOAA Teacher at Sea
Linda Armwood
Onboard NOAA Ship Fairweather
April 25 – May 5, 2006

Mission: Hydrographic Survey
Geographical Area: Aleutian Islands, Alaska
Date: April 29, 2006

Weather Data from Bridge 
Visibility: 10 nautical miles (nm)
Wind direction: 200 °
Wind speed:  15 kt
Sea wave height: 1 ft.
Swell wave dir: 280
Swell wave height: 2-3 ft.
Seawater temp: 7.2
Sea level pressure: 1016.6mb
Present weather: Overcast
Temperature:  °C~ 8.2dry/6.5wet

Science and Technology Log 

My assignment today was to work with the benchmark descriptions and level run team.  The responsibility of the team is to accurately and completely describe the benchmarks.  The description must include the following items:

  • directions for location
  • exact location relative to other structures including the tide gauge
  • sketch of location
  • latitude and longitude
  • above datum of tabulation in meters
  • date of establishment/recovery
  • photograph of benchmark
  • statement that benchmark disk is flush in raised concrete

The team is also responsible for completing the level run assignment.  The purpose of the level run is to level the primary benchmark to the staff stop.  This procedure provides the elevation of the staff stop. In helping with the level run, I assisted the Tides Director in the recording of rod readings. These measurements are read in three parts: top thread, middle thread and bottom thread.  Ideally, thread intervals should be equal.  However, if the thread intervals are not equal, they must be within 2 to be an acceptable reading.  Many of our readings were acceptable upon the first recording.  For the few readings that were not acceptable, the software in the I-Pod associated with the 3 stadia leveler would indicate as such.  Readings were redone accordingly.

In addition to providing assistance to the Tides Director as a recorder, I participated in holding the rod at benchmark locations for level readings.  The indication that the rod would be level is when the surveyor succeeds in moving the rod so that the bubble inside the gauge would sit on the center circle. The tide staff observation was my third assignment for the day.  The completion of these observations provides you with the elevation of your orifice to your staff stop. The tide gauge is located on the pier leg facing the benchmarks.  The boat was placed in a vantage spot that enabled a survey tech and I to monitor and record the tide height every 6 minutes for three hours.  This recorded data would later be compared to the data received by the tide gauge set-up on the pier.

Personal Log 

It was great to get out of the bitter, cold, sleeting weather conditions to the warmth of the ship. The food on the FAIRWEATHER is absolutely delectable!

Question of the Day 

Environmental Science and Geospatial Semester Students 

In which two months are the largest tidal ranges?

Mrs. Armwood

Linda Armwood, April 28, 2006

NOAA Teacher at Sea
Linda Armwood
Onboard NOAA Ship Fairweather
April 25 – May 5, 2006

Mission: Hydrographic Survey
Geographical Area: Aleutian Islands, Alaska
Date: April 28, 2006

Weather Data from Bridge 
Visibility: 10 nautical miles (nm)
Wind direction: 190 °
Wind speed:  13 kt
Sea wave height: 1 ft.
Swell waves dir: 310
Swell waves height: 2 ft.
Seawater temp: 7.3
Sea level pressure: 1012.4mb
Present weather: Mostly cloudy
Temperature:  °C~ 6.5dry/5.0wet

NOAA divers preparing to install a tide gauge at Noyes Island, AK
NOAA divers preparing to install a tide gauge at Noyes Island, AK

Science and Technology Log 

The project’s first priority for the day was to get the tide gauge installed and to set tidal benchmarks.  The tides party consisted of three onshore crews: the reconnaissance and planning team; the benchmark recovery and installation team; and the dive and install team.  I was assigned to the dive and install team boat in order to observe the divers install the tide gauge. I did not observe the underwater installation below the pier; however, the secure installation of the above water equipment was a major undertaking!  The tide gauge installation involves the proper placement of the following items:

  • satellite antenna
  • gps antenna
  • hydro gauge
  • solar panel
  • 12-volt battery
  • nitrogen cylinder
  • nitrogen regulator

I assisted in drilling with the benchmark recovery and installation team.  The historic benchmark was located about 15 feet from the low water line and the next four benchmark locations were set at 200 feet apart from one another in somewhat of a straight line from the historic benchmark.  Benchmarks are important because they represent permanent marks of the land leveling system.  The tidal gauge will automatically read water pressure which it then converts to depth every six minutes over the next 30 days in order to determine the constituents of the tide-generating force. Determining these constituents allows the survey technicians to form possible hypotheses related to ranges, heights, rates and future directions of tides.

Ensign Matthew Glazewski drills to establish a benchmark on Noyes Island, AK.
Ensign Matthew Glazewski drills to establish a benchmark on Noyes Island, AK.

Personal Log 

At the time of this writing, the weather was as stated above; however, during the tides party the weather was miserable with intermittent showers of sleet followed by sunshine and overcast.  The kindness extended to the crew by the Noyes’ Island caretaker will be remembered.

Question of the Day 

Environmental Science and Geospatial Semester Students 

Give some possible non-human factors that may have an effect on the decision-making of tide gauge location.

Mrs. Armwood

The Tidal Party recovered this historic benchmark recovered from Noyes Island, AK
The Tidal Party recovered this historic benchmark recovered from Noyes Island, AK

Melissa Fye, April 22, 2005

NOAA Teacher at Sea
Melissa Fye
Onboard NOAA Ship Hi’ialakai
April 4 – 25, 2005

Mission: Coral Reef Ecosystem Survey
Geographical Area: Northwest Hawaiian Islands
Date: April 22, 2005

Location: Latitude: 23*36.3’North, Longitude: 164*43.0’W

Weather Data from the Bridge
Visibility: 10
Wind Direction:90
Wind Speed: 14 knots
Sea Wave Height: 2-4 feet
Swell Wave Height: 5-7 feet
Sea Level Pressure: 1018.8
Cloud Cover: 2/8 Cu, As, Si
Temperature outside: 24.4

Science and Technology Log

At 0500, surveying of the ocean floor was concluded and transit to Honolulu began.  Scientists in the lab compiled more data and finished up the survey trip with a benthic habitat map of the French Frigate shoals. There are still a few bits of editing to do on the map and some borders need to be added to the final form, but overall it is complete. Scientist Joyce Miller showed me an overview of the completed work using Fladermouse, or a computer mouse, that gives an onlooker the view a bat would have flying over the map. It is a 3-D view of the map, giving its operator the ability to zoom in on underwater pinnacles, sand waves, and coral reefs from any direction.  The contours of the ocean floor were very apparent and Joyce Miller commented that the AHI, new software, etc., enabled the scientists to create the final product much faster; this being the first time they had all the data compiled into map form before the end of a cruise. It was exciting to see all the surveying work put into one picture. With surveying complete for this cruise, and much of the editing done, scientists and crew spent the day doing laundry, finishing up tidbits of work, watching the sunset, etc. The HI’IALAKAI is expected to arrive in the University of Hawaii’s port by 0800, Saturday, April 23, 2005.

Personal Log

I spent the day answering the last of the emails from students, printing off previously completed emails and logs, and snapping pictures of the ship and persons aboard.  Scientists showed me completed benthic maps in the lab and I began packing up my things. It has been a terrific experience and I was lucky to be onboard with such hospitable people. I have truly enjoyed my time aboard the HI’IALAKAI and I have learned so much about ships, coral ecosystems, the Hawaiian islands, scientific data collecting, and those people on board this cruise.  I’m taking back to my classroom a wealth of resources like maps, charts, a binder of lessons, and many photographs and digital movies to weave into science lessons.  But more importantly than those things, I will be bringing back to the classroom real-life enthusiasm for the application of science in the real world.  I have experienced first hand, biological ecosystems, weather instruments and measurements, and map making, in a real life context. I want my students to know that life is not a collection of things, but a collection of experiences. I hope this trip (the resources and anecdotal stories I bring back to the classroom) encourages them to explore opportunities as they arise in their own lives. As a teacher, my underlying goal is to teach my students that learning should be a life long adventure!  And isn’t that what this trip is really all about? Even with all the pictures I have taken and emails I have written, no one will ever have an experience like I have had on board the HI’IALAKAI. Thank you to NOAA, CO Kuester, Lead Scientist Scott Ferguson, and everyone else I have encountered on this trip!

QUESTION OF THE DAY: There are “rivers” of water in oceans that are called currents.  What is name of the current that runs the entire length of the east coast? How does it affect people on the east coast?

ANSWER TO YESTERDAY’s Question:  CO Kuester (commanding officer) has given commands for the ship to arrive at the entrance to Honolulu Harbor by 0700 on Saturday, April 23rd. The ship has 260 nautical miles to still cover, and we travel ten knots an hour.  1) How many hours will it take us to reach our destination? 26 hours 2) A nautical mile > a statute mile (mile on land)  if…

1 nautical mile (1 knot) = 1.15 statute miles  then… 260 knots = 299 statute miles

Melissa Fye, April 20, 2005

NOAA Teacher at Sea
Melissa Fye
Onboard NOAA Ship Hi’ialakai
April 4 – 25, 2005

Mission: Coral Reef Ecosystem Survey
Geographical Area: Northwest Hawaiian Islands
Date: April 20, 2005

Location: Latitude: 23*36.3’North, Longitude: 164*43.0’W

Weather Data from the Bridge
Visibility: 10
Wind Direction:90
Wind Speed: 14 knots
Sea Wave Height: 2-4 feet
Swell Wave Height: 5-7 feet
Sea Level Pressure: 1018.8
Cloud Cover: 2/8 Cu, As, Si
Temperature outside: 24.4

Science and Technology Log

Early before daybreak we arrived at Nihoa island to conduct a CTD cast (conductivity, temperature, and depth measurements).  By three o’clock a.m., the HI’IALAKAI began running north/south and east/west survey lines of the ocean floor. The ship continued throughout the day, surveying the ocean floor using the multibeam system for benthic habitat mapping.

Personal Log

The trip is winding down and as the end approaches, I am finishing my interviews with the crew of the HI’IALAKAI.  I sent out word that I would take anything that anyone has to give away. Several of the officers and crew have been kind enough to give me CDs of past diving trips, maps, and photographs taken on board that I may have missed. I have been reading some of the weather and ocean resources aboard also. We did have an unexpected visitor aboard today. A four foot Wahu fish was caught on the chief steward’s fishing line and filleted for dinner. Its scales were a silvery blue/green color and it had rows of very sharp teeth. I’ve included pictures of it in this log.  I also concluded some interviews with other members of the scientific team. Information on scientists Scott Ferguson, Kyle Hogrefe, Emily Lundblad, Jonathan Weiss, and Rob O’Connor are included in this log.

Lead Scientist Scott Ferguson works for the University of Hawaii and acts as a contract scientist for NOAA. He is originally from Colorado and Tennessee and went to college in Boston. While in high school, he remembers becoming interested in oceanography and also recalls opening a National Geographic Magazine as an adolescent, which contained hand drawn maps of the ocean and may have subsequently planted the seed for his current specialization in benthic habitat mapping. He obtained a degree in biology, specializing in genetics, while an undergraduate student in Boston. His current assignment is based on grant work submitted by a group of scientists to collect data, based on the most available science, about the sea floor in the Northwestern Hawaiian Island chain. The data collected from this trip, which in turn will be made into maps, will be made available to any managers of the various resource management groups (including the Fisheries Department, state agencies, agencies which protect sea turtles, monk seals, etc.). Nautical charts available at this time are inadequate for use for management of resources in the area, so the multibeam sonar and the scientists aboard have been collecting much more detailed data about the ocean floor for these agencies.  The information gathered will determine fishing guidelines, etc., and will help determine boundaries for sanctuary designation of this ecological system. Mr. Ferguson finds this career interesting because it is not routine and provides opportunities for problem solving. The tool he uses most is the computer to collect data.  He comments that someone interested in this field of science should build knowledge through mathematics courses, computer classes, and be able to express themselves well through written medium. Persons who consistently pay attention to detail and are inquisitive are well suited to this work, according to Mr. Ferguson.  Mr. Ferguson and his wife, scientist Joyce Miller, will spend 3-4 months a year on assignment in the Pacific Ocean.  As an added side note, he, his wife, and their cat take up permanent residence on a boat when not working in the office or out to sea!

Marine Ecosystem Specialist, Kyle Hogrefe, spoke to me in an earlier log about the Ghost Net Project and marine debris trips he has taken part in. I took the time today to interview him more thoroughly about the work he does.  Mr. Hogrefe is originally from Medina, Ohio and obtained an undergraduate degree from the University of Colorado in environmental science.  He has worked as a debris specialist, fisheries observer in Alaska, and taken jobs related to data management and mapping to increase his knowledge base. His duties on this cruise involve the deployment and retrieval of oceanographic data platforms.  His job is important because these devices collect long term data about ocean currents, temperatures, etc. which may effect populations of aquatic species of plants and animals over time. Mr. Hogrefe comments that the best part of his job involves the sense of adventure, travel, and diving he gets to do. He comments images from childhood watching Jacques Cousteau may have led to his career choice.  He will spend roughly 6 months at sea this year and the drawbacks of his career involve time away from friends and family. The tool he uses most often is his brain to make decisions and a physical piece of equipment he utilizes often is a lift bag. Patience and an ability to put personal differences aside while working with colleagues are attributes one should possess; according to Scientist Hogrefe.

GIS (Geography Information Systems) scientist Emily Lundblad is originally from the state of Texas and has a master’s degree in Marine Resource Management. Her interest in mapping was sparked from a guest speaker who spoke at her high school. It is a very math/science oriented field and the computer is her most important tool.  She believes the best part of her job is the travel and the ability to see the application of her work. She enjoys going to sea to help collect the data, whereas she would normally just edit and process it. Miss Lundblad will take part in three cruises at sea this year to help collect mapping data.  She mentions that her job on land requires normal eight hour days, but time at sea is different , requiring 12 hour shifts.

Sea floor mapping specialist Jonathan Weiss is a Northern Virginia native, originally from Alexandria, and a graduate of William and Mary. His undergraduate degree is in Geology and he received a graduate degree in Marine Geology from the University of Hawaii. He comments that he has always been curious about the earth and its structure and that research on plate tectonics has revolutionized this field of scientific research. His job requires him to work on backscatter to process the imagery data about the sea floor texture and his most important tool is the computer.  He encourages anyone interested in this line of work to take lots of math courses and a broad overview of the sciences. He enjoys his first post graduate job because the hours are flexible enough for hobbies (like surfing), his bosses are encouraging, and he works with many people his own age. He will spend roughly four months at sea this year in the field.

Rob O’Connor, GIS specialist, originates from Texas but has spent most of his life in Maui, Hawaii. His educational background includes an undergraduate degree in Geography from the University of Hawaii. He comments that the computer is also his most important tool for his job and that he became interested in aspects of the earth after taking some introductory geography courses in college. His duties include data processing and cartography (map making). The travel is an added benefit for this line of work and Mr. O’Connor adds that a person should possess good interpersonal skills and computer knowledge to be successful in this occupation.  This is his first cruise of the year as a GIS specialist.

QUESTION OF THE DAY: I have seen many sea creatures around the Northern Hawaiian Islands coral reef ecosystem. Animals such as the whitetip shark,  sea turtles, and monk seals. These animals are all living things that eat other living things for energy. In a food web, they are called _______________________.

ANSWER TO YESTERDAY’s Question: Ms. Fye saw a humpback whale near the starboard side of the ship the other day. It was performing an adaptive behavior.  Fill in the blank to find out what adaptation the whale was performing.  The movement of an animal from one region to another and back again is called migration.