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:
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- heat/freshwater storage and flux;
- carbon system and biogeochemical studies;
- water mass ventilation;
- model calibration, validation, and state estimation;
- 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
GO-SHIP P02 2022 North Pacific Expedition Logs
Bill the Crocodile
Featuring Bill the crocodile and the day he spent with his human, Co-Chief Scientist Shuwen Tan 1 Jun 2022By Vic Dina What’s that? It’s bring your crocodile to work day? Say less. Today’s blog post features Bill the crocodile and the day he spent with his human,...
Room 29 Explorers
Float No. 9, adopted by K-6 students of James K. Polk Elementary School in Fresno, CA 29 May 2022 Two weeks to the end of the cruise, today (May 29th) we deployed our 9th GO-BGC float near the International Date Line. Tomorrow, after we cross the date line, we will be...
Not so Ordinary Seaman
Ordinary Seaman who is anything but ordinary28 May 2022First let’s get the boring stuff out of the way for all the non-nautical types out there: what is an OS (Ordinary Seaman)? Basically it’s the entry level position in the deck department with the next level being...
Radio Jargon
Sophie Shapiro shares the mystery of radio jargon aboard the R/V Roger Revelle 24 May 2022Here's Sophie Shapiro, reporting on radio jargon! While on the ship, we often need to talk to crew mates from opposite ends of the ship. To do so, we use radios. With background...
Águila dorada
Deploying the float mascot of El Dorado Elementary School24 May 2022Halfway through our journey, today (May 24th, day 25@sea out of 42 days in total) we deployed our 8th GO-BGC float, Águila dorada. Águila dorada was adopted by grades 7-8 of El Dorado Elementary...
Elgin Eagle
Deploying the float mascot of Elgin Elementary School19 May 2022Day 20@sea, after a beautiful sunset, the Elgin Eagle was deployed to the Pacific Ocean. the Elgin Eagle is the BGC-Float mascot for grade 4 of Elgin Elementary School in Sonoita, AZ. In the below...
A Day in the Life
Sidney Wayne describes a typical day on the CFC team aboard the R/V Roger Revelle 18 May 2022In case some of you might be interested, I figured I'd take you through a typical day of mine. My shift is 10pm-10am and this is because I work with two other people on the...
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...
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)...
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...
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?...
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...