GP17 - OCE

Overview

The U.S. GEOTRACES GP17-OCE expedition departed Papeete, Tahiti (French Polynesia) on December 1st,  2022 and arrived in Punta Arenas, Chile on January 25th, 2023. The cruise took place in the South Pacific and Southern Oceans aboard the R/V Roger Revelle with a team of 34 scientists lead by Ben Twining (Chief Scientist), Jessica Fitzsimmons and Greg Cutter (Co-Chief Scientists). GP17 was planned as a two-leg expedition, with its first leg (GP17-OCE) as a southward extension of the 2018 GP15 Alaska-Tahiti expedition and a second leg (GP17-ANT; November 29, 2023 - January 29, 2024) into coastal and shelf waters of Antarctica's Amundsen Sea.

GP17-OCE Science Team in the Strait of Magellan. Source: GP17-OCE Cruise Report

The South Pacific and Southern Oceans sampled by GP17-OCE play critical roles in global water mass circulation and associated global transfer of heat, carbon, and nutrients. Specific oceanographic regions of interest for GP17-OCE included: the most oligotrophic gyre in the global ocean, the Antarctic Circumpolar Current (ACC) frontal region, the previously unexplored Pacific- Antarctic Ridge, the Pacific Deep Water (PDW) flow along the continental slope of South America, and the continental margin inputs potentially emanating from South America.

Additional information can be found in the Cruise Information and Datasets Section below.

GP17-OCE Cruise Track. Source: GP17-OCE Cruise Report

        Dates: 6-8 May, 2020

        Information: This online planning meeting brought together researchers who expected to submit proposals for one or both of the GP17 expeditions. Link to the workshop announcement.

        Contacts:
        Greg Cutter [[email protected]], or
        Ben Twining [[email protected]]

  • U.S. GEOTRACES GP17-OCE Pre-Cruise Planning Meeting

         Dates: 17-18 March, 2022

         Location: Old Dominion University, Norfolk, Virginia. Venue website and map.

         Objective: Coordinate the scientific objectives and supporting logistics for the research cruise from Tahiti to Chile (GP17-OCE) planned for December 2022-January 2023. The GP17-OCE transect will include a nearly meridional section from 20°S to 67°S, a zonal section along 67°S from 135° to 100°W, and a margin section from 67°S 100°W to the Chilean margin. Cruise leadersBen TwiningJessica Fitzsimmons and Greg Cutter.

         Links:

         -> Agenda

         -> Section Goals - Introductory Presentation

  •  GP17 Statements of Interest:  Links to all the submitted statements of interest to aid in the management proposal preparation for each cruise.
  • Collection of slides illustrating the oceanographic features that motivated this cruise:

           - GP17-OCE       

Management Proposals Summaries

Cruise Information

Additional cruise information is available the Rolling Deck to Repository (R2R):

Datasets

Parameters sampled and other relevant metadata available from the Biological & Chemical Oceanography Data Management Office (BCO-DMO):

 

Funding and Support