FN Archimer Export Format PT J TI Sea Surface Salinity and Temperature Budgets in the North Atlantic Subtropical Gyre during SPURS Experiment: August 2012-August 2013 BT AF Sommer, Anna Reverdin, Gilles Kolodziejczyk, Nicolas Boutin, Jacqueline AS 1:1;2:1;3:1,2;4:1; FF 1:;2:;3:;4:; C1 LOCEAN/IPSL, Sorbonne Universités (University Pierre et Marie Curie, Univ Paris 06)-Centre National de la Recherche Scientifique-IRD-Muséum National d'Histoire Naturelle, Paris, France Laboratoire de Physique des Oceans, UMR Centre National de la Recherche Scientifique/Ifremer/IRD/UBO-IUEM, Brest, France C2 MNHN, FRANCE UBO, FRANCE UM LOPS IN DOAJ IF 5.247 TC 9 UR https://archimer.ifremer.fr/doc/00468/57933/60319.pdf https://archimer.ifremer.fr/doc/00468/57933/60320.pdf LA English DT Article CR STRASSE BO Thalassa DE ;salinity;temperature;budget;meso-scale;advection;SMOS;SPURS AB Variability at large to meso-scale in sea surface salinity (SSS) and sea surface temperature (SST) is investigated in the subtropical North Atlantic Ocean during the Subtropical Atlantic Surface Salinity Experiment Strasse/SPURS in August 2012—August 2013. The products of the Soil Moisture and Ocean Salinity (SMOS) mission corrected from large scale systematic errors are tested and used to retrieve meso-scale salinity features, while OSTIA products, resolving meso-scale temperature features are used for SST. The comparison of corrected SMOS SSS data with drifter's in situ measurements from SPURS experiment shows a reasonable agreement, especially during winter time with RMS differences on the order of 0.15 pss (for 10 days, 75 km resolution SMOS product). The analysis of SSS (SST) variability reveals that the meso-scale eddies contribute to a substantial freshening (cooling) in the central high salinity region of the subtropical gyre, albeit smaller than Ekman and atmospheric freshwater (heat) seasonal flux, which are the leading terms in SSS (SST) budget. An error is estimated along with SSS and SST budgets; as well as sensitivity to the different products in use and residuals are discussed. The residuals in the SSS budget are large and can arise from errors in the advection fields and freshwater flux, from neglected small scale or unresolved local processes (salt fingering, vertical mixing, and small scale subduction, etc.). However, their magnitude is similar to what is often parameterized as eddy horizontal diffusion to close large scale budgets. PY 2015 SO Frontiers In Marine Science SN 2296-7745 PU Frontiers Media SA VL 2 IS 107 UT 000485324300107 DI 10.3389/fmars.2015.00107 ID 57933 ER EF