@article{fdi:010070032, title = {{S}easonal and interannual variability of the {E}astern {T}ropical {P}acific {F}resh {P}ool}, author = {{G}uimbard, {S}. and {R}eul, {N}. and {C}hapron, {B}. and {U}mbert, {M}. and {M}aes, {C}hristophe}, editor = {}, language = {{ENG}}, abstract = {{T}he {E}astern {P}acific {F}resh {P}ool ({EPFP}) is a large region of low sea surface salinity ({SSS}) defined by values lower than 34 practical salinity scale within (5 degrees {S}-30 degrees {N}, 75 degrees {W}-180 degrees {W}). {T}he fresh pool dynamically responds to strong regional and seasonally varying ocean-atmosphere-land interactions (including monsoon rain, trade and gap winds, and strong currents). {U}sing more than 5 years of {S}oil {M}oisture and {O}cean {S}alinity ({SMOS}) satellite sea surface salinity ({SSS}) and complementary satellite wind, rain, currents, and sea surface temperature data together with a historical ensemble of in situ products, the present study explores the seasonal and interannual dynamics of the fresh pool over the period 2004-2015. {A}n important interannual variability of the maximal surface extension of the {EPFP} over the past decade is revealed with two extreme events (2012, 2015) occurring during the {SMOS} satellite period. {T}hese extremes are found to be related to the {E}l {N}ino-{S}outhern {O}scillation ({ENSO}) phases and associated anomalies of precipitation, surface currents, and trade wind in the central {P}acific. {I}n 2012 ({L}a {N}ina), stronger trade winds coupled with a deficit of precipitation induced a minimum extension of the pool during the rainy season. {W}hereas, during the strong {E}l {N}ino 2014-2015, the {EPFP} extension reached an unprecedented maximum value. {A} modification of the atmospheric freshwater fluxes and ocean surface currents during winter 2014 is found to have favored the onset of this abnormal fresh event.}, keywords = {{PACIFIQUE} {EST} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans}, volume = {122}, numero = {3}, pages = {1749--1771}, ISSN = {2169-9275}, year = {2017}, DOI = {10.1002/2016jc012130}, URL = {https://www.documentation.ird.fr/hor/fdi:010070032}, }