FN Archimer Export Format
PT J
TI Consistency of the current global ocean observing systems from an Argo perspective
BT 
AF VON SCHUCKMANN, Karina
   SALLEE, Jean-Baptiste
   CHAMBERS, D.
   LE TRAON, Pierre-Yves
   CABANES, Cecile
   GAILLARD, Fabienne
   SPEICH, Sabrina
   HAMON, Mathieu
AS 1:1;2:2;3:3;4:4,6;5:5;6:6;7:7;8:8;
FF 1:;2:;3:;4:PDG-ODE-ADM3;5:;6:PDG-ODE-LPO;7:;8:;
C1 Aix Marseille Univ, Univ Toulon, CNRS, IRD,MIO UM 110, La Garde, France.
   Univ Paris 06, Univ Paris 04, LOCEAN, IRD CNRS MNHN, Paris, France.
   Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA.
   Mercator Ocean & Ifremer, St Agne, France.
   DT INSU, CNRS, Plouzane, France.
   Ifremer, Brest, France.
   UBO, Brest, France.
   Mercator Ocean, St Anne, France.
C2 UNIV TOULON, FRANCE
   IPSL, FRANCE
   UNIV S FLORIDA, USA
   MERCATOR OCEAN, FRANCE
   INSU, FRANCE
   IFREMER, FRANCE
   UBO, FRANCE
   MERCATOR OCEAN, FRANCE
SI BREST
SE PDG-ODE-ADM3
   PDG-ODE-LOS
   PDG-ODE-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.232
TC 39
UR https://archimer.ifremer.fr/doc/00202/31365/29753.pdf
LA English
DT Article
AB Variations in the world's ocean heat storage and its associated volume changes are a key factor to gauge global warming and to assess the earth's energy and sea level budget. Estimating global ocean heat content (GOHC) and global steric sea level (GSSL) with temperature/salinity data from the Argo network reveals a positive change of 0.5 +/- 0.1 W m(-2) (applied to the surface area of the ocean) and 0.5 +/- 0.1 mm year(-1) during the years 2005 to 2012, averaged between 60 degrees S and 60 degrees N and the 10-1500m depth layer. In this study, we present an intercomparison of three global ocean observing systems: the Argo network, satellite gravimetry from GRACE and satellite altimetry. Their consistency is investigated from an Argo perspective at global and regional scales during the period 2005-2010. Although we can close the recent global ocean sea level budget within uncertainties, sampling inconsistencies need to be corrected for an accurate global budget due to systematic biases in GOHC and GSSL in the Tropical Ocean. Our findings show that the area around the Tropical Asian Archipelago (TAA) is important to closing the global sea level budget on interannual to decadal timescales, pointing out that the steric estimate from Argo is biased low, as the current mapping methods are insufficient to recover the steric signal in the TAA region. Both the large regional variability and the uncertainties in the current observing system prevent us from extracting indirect information regarding deep-ocean changes. This emphasizes the importance of continuing sustained effort in measuring the deep ocean from ship platforms and by beginning a much needed automated deep-Argo network.
PY 2014
SO Ocean Science
SN 1812-0784
PU Copernicus Gesellschaft Mbh
VL 10
IS 3
UT 000338651700017
BP 547
EP 557
DI 10.5194/os-10-547-2014
ID 31365
ER

EF