Repeat Hydrography 30˚N Zonal Transect

Crossing the Kuroshio Current and passing through the subtropical mode waters of the western North Pacific, GO-SHIP P02 will pass over one of deepest trenches on the planet.

The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) is an international component of the Global Ocean Observing System (GOOS). GO-SHIP provides climate-ready, full-depth observations of most of the physical (temperature, salinity, velocity) and biogeochemical (carbon, nutrients, oxygen, trace elements) parameters needed to track changes in climate. The high accuracy of GO-SHIP data make them the underlying backbone of GOOS, as benchmarks for calibration and validation of autonomous observations.

GO-SHIP is a systematic re-occupation of key global hydrographic sections that span all ocean basins and reach full ocean depth, with physical and chemical measurements of the highest ‘reference standard’ accuracy. GO-SHIP station tracks are repeated every 5 to 10 years, which allows comparison of heat, freshwater, carbon and nutrient distributions over decades.

The new hydrographic data sets collected by U.S. GO-SHIP will contribute to overlapping scientific and technical objectives related to:

    1. heat/freshwater storage and flux;
    2. carbon system and biogeochemical studies;
    3. water mass ventilation;
    4. model calibration, validation, and state estimation;
    5. autonomous sensor calibration, including Core (2000 m T, S), Deep, and Biogeochemical Argo profiling floats.

Building on observations first made in the 1990’s, this program has been critical to developing our understanding of ocean-related climate changes including: warming of the abyssal ocean that takes up ~10% of the Earth’s excess heat; changes in circulation and ventilation; increasing anthropogenic carbon uptake and its impact on global carbon budgets and acidification; declining oxygen concentrations; and expansion of oxygen minimum zones. The U.S. GO-SHIP open data policy has resulted in rapid, widespread availability and use of data. The program benefits society as it is the only globally available source of information about changes in the deep (>2000m) ocean. The data will continue to be a resource for climate model validation. Outreach for U.S. GO-SHIP data collection (cruise-based) and synthesis will extend data usefulness and public awareness. The program will continue to promote and expand scientific and leadership training for graduate students, postdoctoral scientists, and early career scientists. Funds are budgeted for graduate students, postdocs, and young scientists to participate in each cruise, and for an annual postdoc program to entrain young scientists in use of these invaluable observations.

Please join along on the journey by following the expedition blog!

Chief scientist: Alison Macdonald

Map of expedition A10.5

GO-SHIP P02 2022 North Pacific Expedition Logs

Bulldog Bait

Bulldog Bait

The 6th GO-BGC float of this expedition, Bulldog Bait, was deployed to the Northern Pacific Ocean16 May 2022Day 15 @ Sea, Bulldog Bait was deployed to the Northern Pacific Ocean as the 6th GO-BGC float of this expedition. Bulldog Bait was adopted by grade 10 of Ida...

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Pirates?

Pirates?

"Everyone's thinkin' it, I'm just sayin' it...pirates"15 May 2022"Everyone's thinkin' it, I'm just sayin' it...pirates" ~Andrew Barna* Who knows what's lurking around in this fog today. One thing's for sure, we're all keeping a look out... A few "pirate" (sailor)...

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Introducing LADCPs

Introducing LADCPs

Introducing Kurtis Anstey (he/him), the LADCP student for Leg 114 May 2022Some ‘current’ info on LADCPs Oceanographic research vessels are chock full of cool instruments. The scientists onboard are interested in analysing water samples, taking pictures of what’s in...

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Minnie Paul

Minnie Paul

Deploying the float mascot of grade 3 of Mississippi Creative Arts School11 May 2022Day 11 @ Sea, Minnie Paul with the CUTEST Minnie on it in the water! She is the float mascot of grade 3 of Mississippi Creative Arts School. Can we show you how we deploy the floats?...

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Life Onboard

Life Onboard

Life at sea has its ups and downs.11 May 2022Enough of the science for a minute. I'm sure some of you are wondering how it's REALLY going for us. First off, seasickness is no joke. This is my second time at sea and the ocean is a bit rougher this time. After taking...

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Anchored in STEAM@ncss

Anchored in STEAM@ncss

Successful deployment of BGC-Argo float adopted by North Colonie Central Schools in Latham, NY 10 May 2022 Day 10 at sea, we waved good-bye to the Kuroshio Current and marched towards the Izu-Ogasawara ridge, after crossing which we will leave the Philippine basin and...

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Aggie

Aggie

Successful deployment of our third BGC-Argo float6 May 2022Our third BGC-Argo float (Aggie) has been deployed by Megan Roadman! Aggie is the float mascot of grades 9-12 of McArthur High School in Hollywood, FL where although agriculture is the base class, the students...

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Wolfie

Wolfie

Successful deployment of our second BGC-Argo float3 May 2022On Day 4 at Sea, Vic Dina, successfully deployed our second BGC-Argo float (Wolfie) along the way toward the first actual station of the expedition (Picture 1). Wolfie was beautifully decorated by our science...

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Test Cast

Test Cast

Sophie Shapiro, one of the CTD Watchstanders, reports on our first station and test cast.2 May 2022Introducing Sophie Shapiro (she/her), one of the CTD Watchstanders, reporting on our first station and test cast. Although our ship started out from Guam, our science...

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Chelsea at Sea

Chelsea at Sea

Our first BGC-Argo float has been successfully deployed in the Philippine Basin of the North Pacific1 May 2022Our first BGC-Argo float has been successfully deployed in the Philippine Basin of the North Pacific – Chelsea at Sea, from Mr. Saunders’s sixth grade class...

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Departure from Guam

Departure from Guam

Introducing Mariana Aguirre (she/her), one of our CTD Watchstanders30 April 2022As we said goodbye to GuamIntroducing Mariana Aguirre (she/her), one of our CTD Watchstanders, reporting on our cast off day! Finally the much anticipated day of departure! Everyone is...

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Departure Date Set

Departure Date Set

Our new departure date is set for Saturday!28 April 2022Our new current departure date is set for Saturday and every scientist and crew on board is excited to embark! We've enjoyed this time to get to know one another, to set up equipment to peak operating conditions,...

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