Germaine Thomas: The Adventure Begins Aboard NOAA Ship Oscar Dyson, August 7, 2023

NOAA Teacher at Sea

Germaine Thomas (she/her)

Aboard NOAA Ship Oscar Dyson

August 7 – August 21, 2023

Mission: Acoustic Trawl Survey (Leg 3 of 3)
Geographic Area of Cruise: Pacific Ocean/ Gulf of Alaska
Date: Monday August 7, 2023

Weather Data
Lat 58.31 N, Lon 151.58 W
Sky condition: cloudy
Wind Speed: 12.43 knots
Wind Direction: 357.55°
Sea Wave height: 1 ft | Swell: 340°, 1-2 ft
Air Temp: 12.35 °C

Science log

The purpose of this trip is acoustic trawl sampling for pollock (Gadus chalchogrammus). There are other projects that people are working on during this leg that I will report on in other upcoming blogs.

Today, at about 5:30 pm we deployed a CTD (Conductivity, Temperature and Depth – Probe). This probe measures the salinity using conductivity, the temperature with a digital thermometer, and records the data all at different depths in the water column. This CTD also records fluorescence which is an easy way to determine the amount of plankton present. The plankton at the surface are producers and have chlorophyll, which reacts to fluorescence and can be recorded. This information will be important when we start taking trawl samples, so the ships crew will routinely send out the CTD while we cover our transects.

Watch the videos below of the crew members deploying and recovering the CTD.

Crew members deploying the CTD
Recapturing the CTD

The data from the CTD collection are shown on the picture of the computer screen below:

a photo of a computer monitor showing a screen with three graphs in a row. The first depicts fluorescence (indicating chlorophyll levels) and turbidity v. depth. Chlorophyll levels start out high toward the surface but asymptote toward zero as the probe travels deeper. The central graph is blank. The third depicts salinity and temperature v depth. Salinity stays largely constant, but it does gradually increase with depth. Temperature is higher toward the surface, declines quickly and then slowly with depth.
CTD Data: Fluorescence, or Chlorophyll (green) and Turbidity (orange) v. Depth on the first graph, and Salinity (yellow) and Temperature (blue) v. Depth on the third graph.

The data from the CTD are presented in graphical form. The first frame shows chlorophyll, which is the green line. The second frame is percent oxygen (which they were not measuring so it remains zero). The third frame shows salinity (yellow line) and water temperature (blue line).

Personal log

Currently we are cruising out to our transect destinations over the continental shelf. The seas are a little rough (6-8 foot waves) and I am enjoying some saltine crackers that help with mild sea sickness.  It has been a while since I have been in a large boat in rolling seas.

Three days ago, I flew from Anchorage to Kodiak Island on an a sunny afternoon and met the science team for the cruise. The whole team was extremely welcoming, sharing stories of past cruises, colorful characters and the science behind acoustic trawl sampling. Later, they invited me to go surfing the next day at a beach on the far side of the island.

Through the camaraderie of playing in the waves I was introduced to these amazing people and their knowledge and love of the ocean. They are very professional and willing to share what they are studying.  They also have a deep concern for the changes occurring in the ocean and honestly hope that their information can be shared and understood in order to mitigate the impact of change.  Sitting on my surfboard I quickly learned I was the beginner, and they were the experts. With the experience of time, they would effortlessly snap up and slice through the waves.  Smiles and whoops encouraged each other as the sea crashed into the beach.

Four surfers sit on surfboards, facing away from the camera, awaiting the next wave. Beyond the surfers we see a line of mountains. The image is a color palette of grays: gray cloudy sky, gray ocean, dark gray-blue mountains.
Surfing off of Kodiak Island. Photo credit: Mathew Phillips
A surfer rides a wave back toward shore. We can see a mountain, part of Kodiak Island, behind the surfer. Both the sky and the ocean are gray.
Surfing off of Kodiak Island. Photo credit: Mathew Phillips

Surf photos courtesy of Mathew Phillips

The next day was spent with the science crew getting ready to bring aboard equipment they will be using, accessing and streamlining the information they need for the data collection, and also a little bit more shore time with fishing and hiking. I hiked up a local mountain called Pyramid.

Overall this has been a great start for a wonderful trip. I love to get my students outside experiencing the real world. After a year of taking both Oceanography and Marine Biology my students get to touch, see and smell the ocean through a field trip. They get to see marine birds and mammals, touch and taste icebergs and smell the brine scent of the ocean. They also get a chance to apply the knowledge and skills that they have learned in my class. The NOAA as Teacher at Sea Program is my field trip. I get to see the science and technology in action and share it with my students, friends and family. Thanks so much for letting me play!

David Madden: Waves – Dolphins, Flying Fish, Sea to Sky, August 19, 2019

NOAA Teacher at Sea

David Madden

Aboard NOAA Ship Pisces

July 15-29, 2019 


Mission: South East Fisheries Independent Survey

Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)

Date: August 19, 2019

WAVES: Aboard NOAA Ship Pisces: Dolphins, Flying Fish (video has no dialogue, only music)

This video was captured during my NOAA Teacher at Sea cruise aboard NOAA Ship Pisces. During the cruise I spent lots of time outside on the deck gazing into the blue seascape. Here’s some of the footage I collected.

David Madden: Tiger Shark! Fish Trap Footage, August 19, 2019

NOAA Teacher at Sea

David Madden

Aboard NOAA Ship Pisces

July 15-29, 2019


Mission: South East Fisheries Independent Survey

Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)

Date: August 19, 2019

Tiger Shark! NOAA Ship Pisces Underwater Camera Action (video has no dialogue, only music)

This video is a collection of fish trap camera footage recorded during my NOAA Teacher at Sea adventure aboard NOAA Ship Pisces. Very special thanks to the NOAA science team: Zeb Schobernd – chief scientist and especially Mike Bollinger and Brad Teer – camera and gear experts.

David Madden: All Hands on Deck, August 8, 2019

NOAA Teacher at Sea

David Madden

Aboard NOAA Ship Pisces

July 15-29, 2019


Mission: South East Fisheries Independent Survey

Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)

Date: August 8, 2019

All Hands on Deck (video has no dialogue, only music)

I made this video while aboard NOAA Ship Pisces as part of NOAA’s Teacher at Sea program. I thought it might be cool to capture the different kinds of work the crew, NOAA Officers, and scientists were doing. Pretty much everyone thought I was a little weird when asking to video just their hands. Oh well. I think it turned out kinda cool.

Special thanks to the folks aboard Pisces. Keep in mind – if anyone in this video gets a hand modeling contract, I get 40%. Thank you. The NOAA science team was particularly helpful: Zeb Schobernd – chief scientist, Todd Kennison, Brad Teer, Mike Bollinger, Zach Gillum, Mike Burton, Laura Bacharach, Dave Hoke, and Kevan Gregalis.

Eric Koser: A Walk Through Ship Rainier, July 7, 2018

 

NOAA Teacher at Sea

Eric Koser

Aboard NOAA Ship Rainier

June 22 – July 9, 2018


Mission:
Lisianski Strait Survey

Geographic Area: Southeast Alaska

Date: July 7, 2018: 1400 HRS

Weather Data From the Bridge
Lat: 49°11.7′          Long: 123°38.4′
Skies: Broken
Wind: 16kn at 120°
Visibility: 10+ miles
Seas:  2ft
Water temp: 15.5°C
Air Temp: 17.6°C Dry Bulb, 15.6°C Wet Bulb

Science and Technology Log

NOAA celebrated the 50th anniversary of the 1968 launch of Ship Rainier and Ship Fairweather this past spring.  These two vessels together have provided 100 years of hydrographc service.  Its amazing to consider this vessel has been cutting through the waves for 50 years!

It took a few days for me to get familiar with the layout of Ship Rainier.  Let me take you on a video tour of several sections of the ship and welcome you aboard.

First some orientation.  The decks are identified with letters – where A represents the lowest level and G is the highest level.  “A deck” is actually a collection of tanks and bilge areas…the work of the engineering team mostly takes place on B deck in the engine room.  The ship also uses numbers to address areas of the ship – starting with 01 at the bow and 12 at the stern.  This way, any location on the ship can be identified by an address.

So lets get started on a tour…

Often, work days start with a meeting on the Fantail of this ship. This is on the D deck – the deck with most of the common spaces on board.

Fantail
This is a diagram of the fantail.

Fantail Safety Briefing
A typical morning safety briefing before a busy day of launches.

We’ll start our walk at the base of the stairs on the starboard side of the front of the fantail.  You’ll see the green coated bollards on several decks.  These are used for tying off the ship when in port.  The large yellow tank is gasoline for the outboard motors.  It is setup to be able to jettison over the side in a fire emergency.

Next, we’ll walk in the weather tight door amidships (center) of the front of the fantail. As we walk forward, notice the scullery (dishwashing area) on the left side followed by the galley (kitchen). To the right is the crew mess (eating area). Continuing ahead, we’ll walk through the DC ready room (Damage Control) and into the wardroom (officers eating area) and lounge.

Next, we’ll start in the Ward room and proceed up the stairs to the E deck. Here we’ll walk by several officers quarters on either side of the hall. Then we’ll turn and see a hallway that goes across the E deck and is home to FOO’s (Field Operations) and XO’s (Executive Officer’s) offices.   Then we’ll step out onto the deck and walk towards the deck on the bow (the front of the ship).

Starting once again at the fantail, now we’ll proceed up the steps to the E deck.  This is the level where the davits are mounted (small cranes) that support the launches (small boats).  After passing the base of the davits, we stop into the boat shop.  This is where engineering maintains the engines of all of the launches on board Rainier.   Next we walk up to the F level and turn towards the stern to see the launches from alongside.  Notice, also, the large black crane in the center of the deck that is used for moving additional equipment and launches.  Finally, we’ll walk all the way up the port side to the fly bridge on the G level.  Here you’ll see “Big Eyes”, my favorite tool on the ship for spotting things in the distance.  As I turn around you’ll see the masts and antennas atop this ship for communications and navigation.  The grey post with the glass circle on it is the magnetic compass –  which can actually also be viewed from the bridge below with a tube that looks up from the helm position.  You might also notice this where the kayaks are stored – great for an afternoon excursion while at anchor!

Here is a quick look in the plot room that is also located on the F deck just aft of the bridge.  This is one of two places where the hydrograph scientists work to collect and process the data collected with the MBES systems.

In the front of the ship on the F deck is the bridge.  This is the control center for the ship and the location of the helm.  There is more detail on the bridge in an earlier post.  The sound you hear is a printer running a copy of the latest weather updates.

Finally, visit my C-03 stateroom.  My room has two bunks and plenty of storage for two people’s gear.  There are four staterooms in this cluster that share two heads (bathrooms).  The orange boxes on the wall are EEBDs (Emergency Escape Breathing Devices).  These are located throughout the ship and provide a few minutes of air to allow escape in the event of fire.  Notice at the top of the steps were back to the hallway and steps just outside of the lounge on D level.

The entire engineering department is not included in these videos and exists mostly on the B level.  Please see my second blog post for more detail on engineering systems and several photos!

Personal Log

Sunday, July 8, 1000 hrs.
We’re coming around the northwestern most point of Washington State this morning and then turning south for the Oregon Coast.  The ship is rolling a bit in the ocean swells.  I’ve come to be very used to this motion.  Last night we had a chance to go ashore in Friday Harbor, in the San Juan Islands for a few hours.  I was surprised just how ‘wobbly’ my legs felt being back on solid ground for a while.  My ship mates tell me this is how it is the first few times back ashore after being at sea!

This has been a great experience – one of plenty of learning and a real appreciation for the work accomplished by this team.  I look forward to drawing in all I can in the last day on the ocean.

Who is On Board?

Mike Alfidi
This is our cox’n Mike Alfidi at the helm of Launch RA-3.

This is augmenter Mike Alfidi.  Mike has been a cox’n (boat driver) here on Rainier for about two years now, and has quite a bit of past experience in the Navy.  Mike is a part of the deck department.  His primary duties here are driving small boats and handling equipment on the decks.  As an “augmenter,” he makes himself available to NOAA to be placed as directed on ships needing his skills.

One of the things Mike loves about his work is getting to see beautiful places like Southeast Alaska.  And, he appreciates updating charts in high traffic areas like the harbor at Pelican.  He loves to be a part of history – transitioning survey data from the old lead line to the much more accurate MBES.  One of the toughest parts, he says, is riding our rough seas and plotting in less trafficked areas.  He did a great job of piloting our launch just as the hydro scientists needed to collect the data we were after!