Beverly Owens: Vacation Cruise – June 13, 2013

NOAA Teacher at Sea
Beverly Owens
Aboard NOAA Ship Henry B. Bigelow
June 10 – 24, 2013
 

Mission:  Deep-Sea Corals and Benthic Habitat: Ground-Truthing and Exploration in Deepwater Canyons off the Northeastern Coast of the U.S.
Geographical Area: Western North Atlantic
Date: June 13, 2013

Weather Data from the Bridge:
Air temperature: 16.70 oC (62.06 oF)
Wind Speed: 25.17 knots (28.96mph)

Science and Technology Log

Waypoints for TowCam expedition

Waypoints for TowCam expedition

“You get to go on a two-week cruise for vacation!”

This is the misconception that some people had, when I told them initially that I would be participating as a NOAA Teacher at Sea.  On a vacation cruise and a research cruise, participants stay an extended period of time on the ocean, and they receive three meals a day.  That is pretty much the end of the similarities between these types of cruises.  During a scientific research expedition, there is a mission to accomplish. For example, this trip is examining sites that are known or predicted to be deep-sea coral and sponge habitats.

Many multibeam bathymetric maps are consulted to find the most suitable sites to investigate. Bathymetric maps are similar to topographic maps with the exception that bathymetry applies to the topography of the ocean floor. Most of the major structure-forming deep-sea corals are found on hard substrate. Thus, areas of soft sediment are not the most likely places to find the majority of coral species, however many other organisms like brittle stars and anemones, may be found there.

There is a lot of preparation that goes into planning and coordinating a research “cruise.” The Chief Scientist must put in a request for a research vessel, and must assemble a science crew that has the skills and research interests that align with the research mission. In the months leading up to the research trip, the science party will discuss specific science objectives, protocols and potential study sites. Every participant must receive medical clearance, which includes having a TB (tuberculosis) test, and a recent tetanus vaccination.

The Chief Scientist, with input from the science team, determines which areas of the ocean to examine, and what type of technology to use to explore the ocean. Weather and waves may prevent some of the “dives” from taking place. Safety first – the conditions must be safe enough for the TowCam operators and deck crew to be outside during deployment as they lower TowCam safely into the ocean.

This bathymetric map displays the topography of the ocean floor.

This bathymetric map displays the topography of the ocean floor.

During TowCam deployments, many things must be done to make the dive successful. The Chief Scientist selects several points (waypoints) along a survey line within a canyon. These points help guide the ship during the TowCam deployment.  To get TowCam into the water requires a lot of communication and coordination of efforts. The winch operator and deck crew are responsible for getting TowCam into the water. The winch operator is in constant contact with the TowCam pilot and  controls the wire that lowers TowCam into the water. At a certain depth, the control is passed to the TowCam pilot in the lab who uses a joystick to lower the camera to the ocean floor.  The pilot and the Bridge are in constant communication during the dive. The Bridge controls the ship and follows the track for the survey. The TowCam pilot analyzes data displayed on several computer monitors in order to make the most informed decisions as they guide the camera through the water column by moving TowCam and up and down in the water column.  In addition, a variety of data are collected during the deployment.  I have been logging data during the night shift deployments. I help keep track of variables  such as depth, winch wire tension, latitude, longitude, and altimeter readings along the survey track.  All this information will be invaluable to scientists examining the data collected during this research cruise.

 Personal Log

At Crest Middle School, we try to teach our students critical thinking skills: think for themselves, make informed decisions, gather data, predict, and draw conclusions. This research trip is a prime example of how skills that students acquire in school will be beneficial for them in the future. When completing a task such as logging data, I have to decide what the important events are that have occurred in the TowCam dive, and to phrase those items in a way that others will understand.

TAS Beverly Owens logging data

TAS Beverly Owens logging data

 Did You Know?

TowCam is about the size of a refrigerator. It has one large high-resolution camera that takes pictures every 10 seconds. It also has a CTD, which records conductivity (salinity), temperature, and depth. TowCam also carries several Niskin bottles, used for water collection at depth and a slurp pump that pulls sediment from the ocean floor into a container for later analyses.

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Beverly Owens: The Tenacity of a Scientist, June 13, 2013

NOAA Teacher at Sea
Beverly Owens
Aboard NOAA Ship Henry B. Bigelow
June 10 – 24, 2013

Mission: Sea Corals and Benthic Habitat: Ground-truthing and exploration in deepwater canyons off the Northeast
Geographical Area: Western North Atlantic
Date: June 11, 2013

Weather Data from the Bridge:
Air temperature:18.4 oC (65.12 oF)
Wind Speed: 24.56 knots (28.26 mph)

 

Science and Technology Log

The Tenacity of a Scientist

The science crew has been divided into two teams – the day watch (noon to midnight), and the night watch (midnight to noon). Those who are on “watch” are expected to be around the science labs while on duty. When TowCam is deployed, members of the science party on watch should be in the Dry Lab to monitor images and record data.

My watch is midnight to noon. Did I mention that my normal bedtime is 9:00? It will take a little while to get adjusted to this new schedule.

While the TowCam is in the water, the “Dry Lab” is bustling with activity. The TowCam operators, and some of the ship’s crew, ensure that the equipment is safely deployed. After lowering TowCam to a specified depth, control of TowCam is passed from the Bridge to the TowCam pilots. It is interesting to see how this large piece of machinery is operated. The pilot uses a joystick to raise or lower TowCam to the correct depth just above the ocean floor. In addition to the joystick controller, the pilot must also interpret data that is being recorded by TowCam or the ship. Knowing the wind speed, tension of the winch wire, altimetry, and depth are all variables that help the pilot to make the most informed decisions about the placement of TowCam.

Even with the best planning and most precise implementation, sometimes things go awry. For example, a cable may break, or the altimeter may not be registering correctly. During a research cruise such as this, spare parts, tools, and other materials must be packed for the voyage. There are no trips to the hardware store when you’re out in the middle of the ocean!

After yesterday’s practice dive, the engineers made some adjustments to TowCam so that it could work to its optimum capability. After adjustments have been made, a series of tests are run on TowCam to ensure that everything is working properly. After testing is complete, TowCam will be deployed again, allowing us another glimpse of the ocean floor.

Beverly Owens: Scientist Spotlight – Dr. Liz Shea, June 11, 2013

NOAA Teacher at Sea
Beverly Owens
Aboard NOAA Ship Henry B. Bigelow
June 10 – 24, 2013

Mission: Sea Corals and Benthic Habitat: Ground-truthing and exploration in deepwater canyons off the Northeast
Geographical Area: Western North Atlantic
Date: June 11, 2013

Weather Data from the Bridge:
Air temperature: 18.4 oC (65.12 oF)
Wind Speed: 24.56 knots (28.26 mph)

Science and Technology Log

Dr. Liz Shea, recording data during the first TowCam dive

Dr. Liz Shea, recording data during the first TowCam dive

Dr. Shea is from Wilmington, Delaware, where she is the Curator of Mollusks at the Delaware Museum of Natural History. In this role, Dr. Shea manages collections and conducts research. There are over 250,000 mollusks in collections including snails, clams, and cephalopods. She received her Bachelor’s degree from William and Mary, her Master’s from the Virginia Institute of Marine Science, and her Ph.D. from Bryn Mawr College.

While working on her Master’s degree, Dr. Shea conducted her research on squid paralarvae (very small hatchlings), but recently has been more involved in collecting deep-sea squids and octopods. Her recent work includes using Magnetic Resonance Imaging (MRI) technology to examine morphological characters that will help distinguish between species.   Through Dr. Shea’s research, scientists are now able to identify cirrate octopod hatchlings to the genus level.

Dr. Shea has always been interested in the ocean. While at the beach as a child, she enjoyed looking at creatures from the ocean. As an undergraduate student, Shea held an internship at the Smithsonian Institution, and worked with several scientists who studied cephalopods, mollusks such as octopus, squid, and Nautilus. During her internship, her mentors impressed upon her that there is still much left to learn about cephalopods, and plenty of research still to be done.

Additionally, Dr. Shea has volunteered in the past to lead 5th grade students in a squid dissection. One unique thing Dr. Shea liked to teach the children is that there are many ways in which an organism’s body might be organized.

Dr. Shea tries to go on one research cruise per year. For Dr. Shea, these types of cruises are, “Always the highlight of my year.”

Kate DeLussey: Studying Deep Water Corals – The Work Continues, July 17, 2012

NOAA Teacher at Sea
Kate DeLussey
Onboard NOAA Ship Henry B. Bigelow
July 3 – 18, 2012

Mission:  Deep-Sea Corals and Benthic Habitat:  Ground truthing and exploration in deepwater canyons off the Northeast
Geographical area of cruise: Atlantic Ocean, Leaving from  Newport, RI
Date: Tuesday , July 17, 2012

Kate DeLussey
Teacher at Sea on the Henry B. Bigelow

 

Location:
Latitude:  40.3456 °
Longitude: -68.2283°

Weather Data from the Bridge:
Air Temperature: 21.90° C
Wind Speed: 12 Kts
Relative Humidity:  102.00%
Barometric Pressure: 1,008.83 mb
Surface Water Temperature: 21.63° C

Science and Technology Log

TowCam returned to the ship for the last time this cruise.  The components have been stored, batteries have been charged, and data logged in ten minute increments has been saved in excel files for others to read.  The last pictures have been upload from the camera for a grand total of over 35,000 photos. Yes, the images of corals, sponges, and fish have been celebrated, reviewed, and annotated, but the real learning work is just beginning.

The scientific team will spend years studying, thinking, comparing, wondering, and hypothesizing about corals and coral habitat.  They will compare what they have learned with what they already know. They will read what other scientists have written about corals and talk to one another about what they see.  They will write papers explaining their findings, and make presentations to share their learning with others.

These scientists will do this hard learning work because they are curious, because coral habitats are unique and special, and because they care about our  planet’s oceans and the creatures living there.

As earth citizens we are should be grateful and supportive of the research these scientists do.  They work to care for and protect ocean life that very few people even know about.  Hopefully, we all will learn from their work.

The Science Team led by Dr. Martha Nizinski aboard the Bigelow. July 2012

Thank you to NOAA and to:  Chief Scientist Dr. Martha Nizinski

Thanks also to: Dr. T. Shank, Dr. D. Packer, Dr. V. Guida, Dr. E. Shea, Dr. B. Kilan, Dr. M. Malik, Dr. G. Kurras, and Dr. L Christiansen.

Through your dedication and work we all get to learn about the wonders of our planet.

Personal Statement

I have been able to share in this amazing coral research.  Don’t get me wrong.  This is not all fun and games.  There were many challenges, and the hours on shift were long and sometimes difficult.  This is getting down and dirty with real science.  BUT… this is different, usually teachers say the good stuff first:)

Pay close attention to this next statement:  Many of the corals seen in the photos collected by TowCam have never been seen in these locations before. Never!   Some of the corals might even be new discoveries.

Only eleven people have seen corals in the canyons of the Mid- and North Atlantic.  I am one of those people.

I will never be the same, and if you are in my class next year, well, you will never be the same either. You are going to love the Oceans.  You will be surprised to find yourself choosing to watch NOAA videos over video games.   You will read non-fiction to find answers to your questions, and you will write to be a persuasive voice for corals because some of them only know 11 people and they need more friends.

Perhaps you will be amazed and wonder about bioluminescent sea creatures lighting up the sea like lightning bugs.  (I am still waiting to see them Dr. Packer! )  It is possible you will develop a passion for cephalopods like Dr. Shea, or maybe you are simply thinking that you could do this ocean science research.   You can prepare by reading the writings of Dr. Nizinski and others.  It is all possible- you just need to wonder, think, hypothesize, and try.

I may look like Kate DeLussey, but the experience of researching Deep Sea Corals has changed me.    Learning will do that to you !

Next Time:  You could be a scientist at sea.   The corals and other sea creatures will thank you!

Kate DeLussey: TowCam Anyone? July 11, 2012

NOAA Teacher at Sea
Kate DeLussey
Onboard NOAA Ship Henry B. Bigelow
July 3 – 18, 2012

Mission:  Deep-Sea Corals and Benthic Habitat:  Ground truthing and exploration in deepwater canyons off the Northeast
Geographical area of cruise: Atlantic Ocean, Leaving from Newport, RI
Date:  Wednesday, July 11, 2012

Everyone works at sea. Here I am helping with the pre-deployment checklist.   (See how wet Lowell is!  He has been to the ocean floor many times.)

Location:
Latitude:  39.8493°
Longitude: -69.5506 °

Weather Data from the Bridge:
Air Temperature: 19.30° C
Wind Speed: 20.74 knots  5  on the Beaufort  wind scale
Relative Humidity:  88.00%
Barometric Pressure: 1,020.80 mb
Surface Water Temperature: 21.39° C

Science and Technology Log

High winds, moderately rough seas, and difficulties with the ship’s positioning system all contributed to the delay of the first scheduled launch of TowCam on our midnight shift.  Even though the necessary decision meant a loss of precious underwater time, it is better to delay than risk losing  expensive equipment.

When the seas calmed down we were able to launch TowCam, but first we had to go through the pre-launch checklist.  I helped Lizet as she prepared TowCam.

Did you guess that Batteries power the components of TowCam?          Lizet must test the batteries  before and after each launch.

The batteries are under very high pressure when TowCam goes to the ocean floor so we have to push out the air before each trip.   I help by tightening the battery caps.  Every time I am on deck I must put safety first.  I always wear a hard hat and the life vest.

One of my jobs is to help with TowCam.

When everything has been checked and double checked, the operator gives the signal, and the deck crew of the Bigelow use the winch and tag lines to launch TowCam on its next mission.

The winch swings TowCam off the deck and lowers it into the ocean.

Look at the picture carefully.  The deck crew always wear their safety equipment too!  They hook themselves to the ship by their belts, and they wear safety vests and hardhats.  The deck crew on Bigelow also make sure everyone follows the safety rules.

As soon at TowCam is in the water, everyone wants to view the images sent by the camera, but the TowCam operator must keep an eye on the monitors.

These are six of the monitors used to control and guide TowCam.

TowCam operators watch eight different computer monitors to control TowCam’s movements.  With the help of mathematic modelers and previously collected data about the structure of the ocean floor, the scientists choose  locations where they think they will find corals. These locations are called “stations.”

This map from the NOAA web site shows the track of the Bigelow. The places where the lines cross over one another are some of the stations where the scientists looked for coral

The ship must make very small movements to get the camera in the correct place on station. The operator will say something like, “Lab to Bridge- move 10 m to the North please.”… Then they watch the camera and the monitors to see if TowCam moves to the correct position.   Sometimes TowCam floats right past the spot scientists want to see, and then the operators have to try to get it back into position to take the pictures.  Not every station has the corals the scientists hope to find.  But even knowing where corals are not is important information.  After several hours of picture taking, we move on the next station.

I sit next to the TowCam operator and keep the logs.

Even in calm seas controlling TowCam is a challenging process.  Remember, TowCam hovers over the ocean floor  attached to the ship by a wire.   Fully loaded it weighs over 800 pounds in the air.  Since the ship moves TowCam by pulling it, it is not easy to follow the scientists’ plan.

However, when the perfect coral images appear on the screen, no one thinks about how hard they were to find.  We all crowd around the monitors and watch in amazement.  The scientists try to figure out  types of corals in the picture, and then they wait for the next picture to see if there are even more!  We have found corals at lots of stations!

Think about a time you tried to pull something tied to the back of  a rope.  Was it easy to steer?  Did it get stuck?  

Personal Log

We have talked a bit about how scientists find and try to study corals using the underwater camera and other sensors on TowCam.  On other missions scientists  sometimes use remote control underwater vehicles ROVs.   Unlike TowCam which is dragged behind the ship, these vehicles are more versatile because they are driven and controlled remotely using a joy stick similar to the ones you use for computer games.    Sometimes scientists even go to the ocean floor and drive themselves around using submersibles.  One thing is certain,  you have to get under the water to study corals.

Scientists go to all this trouble because corals are important to our Earth’s oceans. They are very old, and they provide habitat for other animals. 

As you grow, it will be your job to find ways to study and protect corals and all other living things in the oceans. 

Who knows how corals could help us in the future!

Polyps are extended from deep-sea coral colony.
Photo from NOAA Undersea Research Program.

Kate DeLussey: Lowell Searches Beneath the Ocean, July 8, 2012

NOAA Teacher at Sea
Kate DeLussey
Onboard NOAA Ship Henry B. Bigelow
July 3 – 18, 2012

Mission:  Deep-Sea Corals and Benthic Habitat:  Ground truthing and exploration in deepwater canyons off the Northeast
Geographical area of cruise: Atlantic Ocean, Leaving from Newport, RI
Date:  Sunday, July 8, 2012


Location:
Latitude:  38.9580 °
Longitude: -72.4577 °

Liz thought we needed our school mascot on the mission. When she went to the store, she brought back Lowell the Lion.

Weather Data from the Bridge:
Air Temperature: 24.60° C
Wind Speed: 4.5 knots
Relative Humidity:  88.00%
Barometric Pressure: 1,010.30 mb
Surface Water Temperature: 24.49° C

 

Science and Technology Log

Look who went to the bottom of the ocean on TowCam.  No you silly students…not me!  TowCam is exploring the deep ocean between the twilight zone and the midnight zone, and it is not possible for people to travel in deep water without very special equipment.

Our mascot Lowell Lion accompanied TowCam as it was deployed for Tow 2.

At this location, TowCam reached a depth of over 1900 meters below the surface of the ocean.  That is more than one mile-straight down!  It was a good mission.  The camera was sending some very interesting images back to the ship.  As I was doing my job logging, I was watching these first images.  I was able to see hard bottom- the best habitat for corals.  I also saw fish and sea stars, and then I saw the corals! They looked like little fuzzies on the rocks. The scientists had the ship hold position right over of the corals so they could take lots of pictures.  The TowCam operator used controls on the ship to raise and lower TowCam to get close to the corals without touching the cliffs where the corals were living.

Students:   Can you imagine using remote controls to move the TowCam?  I bet you would be good at it.  Perhaps the video games you play will help prepare you to fly TowCam when you finish college. 

Doesn’t Lowell look proud?  He survived his first dive and brought some interesting friends back with him.

Well, when TowCam came back on the ship, Lowell was very wet, but he handled the cold, dark high pressure very well.   Thanks to Greg and Lizet, Lowell stayed on the TowCam Sled!

Once TowCam was secured on the deck. We went out to take care of TowCam.   What a big surprise to find other creatures hitchhiking on TowCam.   Lowell the Lion must have made some friends.

This sea star was hidden on TowCam

The first deep sea visitor was a spiny orange sea star.

The orange sea star was found on TowCam deployment #2.

Isn’t it beautiful?  We all rushed to see it.  Dr. Nizinski carefully examined and measured the sea star.   She used her tweezers to pick up a tiny sample the sea star leg, and she put the sample into a little bottle with a label.  She will use the sample to test the DNA to help classify the sea star.  She will find the sea star’s “family.”

It was exciting to find the sea star, but when we looked further one of the scientists saw a piece of coral tucked in a hiding place on TowCam.   Dr. Martha took care of the coral also.  The coral will become a permanent record that reminds us that this type of coral lives here.

   These corals were hidden in the batteries after Tow 2. July 8, 2012

 

Do you see how carefully the sample is documented?  Some of the things we do in school like labeling and dating our illustrations and our work prepare you to be a scientist.  

Many years from now someone can look at the coral in this picture and see that the sample was collected on the Bigelow TowCam #2, on July 8th.  The ruler in the picture helps everyone know the approximate size.

One of the components on TowCam we have not talked about yet is the slurp.  

 

TowCam slurp

Try to find the Slurp on TowCam.              

The “slurp” is really an underwater vacuum cleaner that sucks up water, sediment, and sometimes small creatures.  When TowCam is in deep water, the scientists watch the images to decide when it is a good time to trigger the slurp.   They have to choose carefully because the slurp can be done only once on each trip to the bottom.

The scientists used the slurp on Tow #2.  The collection container looked like it just had “mud” and water.   It was emptied through a sieve to separate the “mud” and other things from water.  The scientists carefully examined what looked like regular mud but tiny organisms like bivalves, gastropods, and small brittle stars were found in the sieve.  These animals were also handled very carefully.

This brittle star was found with mud and sediment slurped from the ocean bottom.

This brittle star was found with mud and sediment that was slurped from the ocean bottom.

Can you find any other living things in this picture?

 

You never know what is hiding in the mud.  I bet we could do this kind of exploring right in our school’s courtyard.  What do you think we could find if we examined our mud?

 

Kate DeLussey on the Bigelow July 12


Personal Log

I think we should talk about the ocean today.  Many of us have had some experience with the ocean.  Maybe you have been to the beach, and maybe you have even seen some of the cool creatures that can be found on the beach.  I have seen crabs, horseshoe crabs, clams, and plenty of jellyfish, but the scientists on Bigelow are working in a very different part of the ocean.

If you visit the beach, you are only swimming in a teeny tiny part of the ocean.  Maybe you are allowed in the ocean up to your knees to a depth of 20 inches (about 1/2 a meter), or maybe you are brave and are able to go in the ocean with an adult up to your waist to a depth of 30 inches (about 3/4 a meter).  Even if you have been crabbing or fishing in the Delaware Bay where the average depth is 50 feet (15.24 meters) you have been in only the most shallow part of the ocean.  TowCam has been down as far as 1.2 miles (2000 meters).  That is not even the deepest ocean!  The ocean is divided into zones according to depth and sunlight penetration.  I learned about the top three zones.

  • The sunlight zone– the upper 200 meters of the ocean are also called the euphotic zone.  Many fish, marine mammals like dolphins and whales, and sea turtles live in this band of the ocean.  At these depths there is light, plants, and food for creatures to survive.  Not much light penetrates past this zone.
  • The twilight zone– this middle zone is between 200 meters and 1000 meters and is called the disphotic zone.  Because of the lack of light, plants cannot live in this zone.  Many animals like bioluminescent creatures with twinkling lights do live in this zone.  Some examples of other creatures living in this zone includes: crabs, gastropods, octopus, urchins, and sand dollars.
  • The midnight zone– this zone is below 1000 meters and is also called the aphoticzone has no sunlight and is absolutely dark.  At these depths the water pressure is extreme, and the temperature is near freezing.  90% of the ocean is in the midnight zone.So you can see that when you are at the beach, you are never in the “Deep Ocean.”  You are still in a great place to find many amazing creatures.  Keep your eyes open!  Be curious! Make sure you do some exploring the next time you visit this important habitat.  Then write and tell me about the things you find. Try to draw and label the three zones of the ocean.  Be sure to draw the living things in the correct zone.
  • Next time:  Someone will be working on deck getting TowCam ready for deployment.  Hint:   It will not be Lowell. : )

Kate DeLussey: Underway and Under the Sea, July 7, 2012

NOAA Teacher at Sea
Kate DeLussey
Onboard NOAA Ship Henry B. Bigelow
July 3 – 18, 2012

Mission:  Deep-Sea Corals and Benthic Habitat:  Ground truthing and exploration in deepwater canyons off the Northeast
Geographical area of cruise: Atlantic Ocean, Leaving from  Newport, RI
Date:  Monday, July 7 , 2012

Location:

Here I am on the bridge of Henry B. Bigelow.  ENS. Zygas put me to work looking up changes for navigational charts.

Latitude:  39.29 °
Longitude: -72.25°

Weather Data from the Bridge:

Air Temperature: 23.40° C
Wind Speed: 15 Kts
Relative Humidity:  90.00%
Barometric Pressure: 1,011.99 mb
Surface Water Temperature: 23.66° C

Science and Technology Log

At 7:00 pm last night the Henry B. Bigelow left Pier 2 from the Newport Naval Base.  Narragansett Bay was crowded with sailboats, yachts, and even a tall ship, but once we passed under the bridge, we knew we were really on our way.  Now that we are at sea, everyone onboard will begin his or her watch.  I will be working 12 am to 12 pm along with some of the scientists.  Even though I never worked night work before, I was excited to learn about my jobs!

One of our jobs is to keep track of the “TowCam” when it is in the water.  Every ten minutes while the TowCam is deployed (sent underwater) we log the location of the ship using Latitude and Longitude. We also have to keep track of other important data like depth.  The information is logged on the computer in a spreadsheet and then the points are plotted on a map.  A single deployment can last 8 hours.  That is a lot of data logging!  These documents provide back up in case something were to happen to the data that is stored electronically.   I will have other jobs also, and to get ready for those duties, Lizet helped me get to know the TowCam better by explaining each component.

Students:  See if you can find each part Lizet showed me on the picture of the TowCam in my last blog.

 

The camera on TowCam faces down to capture images in the deep ocean

Camera– The camera is the most important part of the TowCam.  You need a very special camera that will work in cold deep water.  When the TowCam is close to the ocean floor this digital camera takes one picture every 10 seconds. The thumbnails or samples of the pictures are sent to computers on the ship by the data link. The camera operator described the thumbnails like the picture you see when you look at the back of your camera. When I look at the thumbnails I don’t usually see much in the picture.  The scientists know what they are looking for, and they can recognize hard bottom on the ocean floor and corals.  They see fish and other sea creatures too, and when they see a picture they like, they will ask the ship navigator to “hold the setting” so they can take more pictures.  Remember, the scientists are trying to find corals, or places where corals might live.  If they have a picture, they have proof that these special animals live in a certain habitat that should be protected.

Strobe light– There are two strobe lights on the TowCam.  The deep ocean does not have

Strobe light illuminates the darkness of the deep ocean

natural lighting because the sunlight does not reach down that far.  The strobe light flashes each time a picture is taken.  If the TowCam did not have these special lights, you would not be able to see any of the pictures from the camera.  These lights are tested every time the TowCam is deployed.

The CTD measures Conductivity, Temperature, and Depth

      CTD- The CTD is an instrument that has sensors to measure Conductivity, Temperature, and Depth in a certain water column.  It is attached to the TowCam and the information from the CTD is sent to the computers through the datalink.  This information gives the scientists a better understanding about the ocean water and the habitat for the creatures they are looking for.  Look for more components on the TowCam.  How do you think the TowCam gets its power?

 

Personal Log

I am getting adjusted to life at sea.  For the first few days, when we were still on the dock I did not have much to do.  ESN Zygas gave me a job and let me find updates for the navigational charts that are stored on the bridge.  The charts are maps of the oceans and waterways that help the NOAA Corps team steer the boat, and these charts get updated when markers like buoys are moved or when the water depths and locations change.  Up-to-date charts keep the ships safe.  I was glad to do a job that helped keep us safe.  Now that we are at sea, I have been working my watch.  The work varies.  We have hours of watching TowCam on the bottom of the sea and charting the positions of the ship. Then we have the excitement when the camera comes on-board with pictures and samples that need to be processed.

One of the best things about this experience is that I am the student just like my students at Lowell.  I am excited to learn all of the new things, but I am frustrated when I don’t understand.  Sometimes I am embarrassed when I have to ask questions.  Yesterday I was working with some of the images and I was looking for fish. All I had to do was write “yes” there is a fish in this photo.  Well, I had to ask Dave (one of the scientists) for help.  I had to ask, “Is this a fish?”  Can you imagine that?  A teacher like me not knowing a fish!  It was like finding the hidden pictures in the Highlight magazine!

So instead of being frustrated, I am open to learning new things.  I keep practicing and try not to make mistakes, but when I do make those mistakes, I just try again. By the time we go through the thousands of pictures I may not be a pro, but I will be better.  I can see that I am improving already.  I can find the red fish without zooming in -the red color probably helps!

Next time:  Wait until you see who went to the bottom of the ocean on TowCam.  You won’t believe what they brought back with them.

Until next time:)