FN Archimer Export Format
PT J
TI Sailing through the southern seas of air-sea CO2 flux uncertainty
BT 
AF LANDSCHUETZER, Peter
   TANHUA, Toste
   BEHNCKE, Jacqueline
   KEPPLER, Lydia
AS 1:1,2;2:3;3:2,4;4:5;
FF 1:;2:;3:;4:;
C1 Department Research, Flanders Marine Institute (VLIZ), 8400 Ostend, Belgium
   The Ocean in the Earth System, Max Planck Institute for Meteorology, 20146 Hamburg, Germany
   GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
   International Max Planck Research School on Earth System Modelling, 20146 Hamburg, Germany
   Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093, USA
C2 VLIZ, BELGIUM
   MAX PLANCK INST METEOROL, GERMANY
   IFM GEOMAR, GERMANY
   INT MAX PLANCK RES SCH EARTH SYST MODELLING, GERMANY
   UNIV CALIF SAN DIEGO, USA
IF 5
TC 5
UR https://archimer.ifremer.fr/doc/00842/95424/103230.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;Southern Ocean;observations;carbon dioxide
AB The Southern Ocean is among the largest contemporary sinks of atmospheric carbon dioxide on our planet; however, remoteness, harsh weather and other circumstances have led to an undersampling of the ocean basin, compared with its northern hemispheric counterparts. While novel data interpolation methods can in part compensate for such data sparsity, recent studies raised awareness that we have hit a wall of unavoidable uncertainties in air-sea CO2 flux reconstructions. Here, we present results from autonomous observing campaigns using a novel platform to observe remote ocean regions: sailboats. Sailboats are at present a free of charge environmentally friendly platform that recurrently pass remote ocean regions during round-the-globe racing events. During the past 5 years, we collected >350 000 measurements of the sea surface partial pressure of CO2 (pCO(2)) around the globe including the Southern Ocean throughout an Antarctic circumnavigation during the Vendee Globe racing event. Our analysis demonstrates that the sailboat tracks pass regions where large uncertainty in the air-sea CO2 flux reconstruction prevails, with regional oversaturation or undersaturation of the sea surface pCO(2). Sailboat races provide an independent cross-calibration platform for autonomous measurement devices, such as Argo floats, ultimately strengthening the entire Southern Ocean observing system.This article is part of a discussion meeting issue 'Heat and carbon uptake in the Southern Ocean: the state of the art and future priorities'. 
PY 2023
PD JUL
SO Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences
SN 1364-503X
PU Royal Soc
VL 381
IS 2249
UT 000983226900007
DI 10.1098/rsta.2022.0064
ID 95424
ER

EF