@article{fdi:010060133, title = {{S}mall-scale features of temperature and salinity surface fields in the {C}oral {S}ea}, author = {{M}aes, {C}hristophe and {D}ewitte, {B}oris and {S}udre, {J}. and {G}ar{\c{c}}on, {V}. and {V}arillon, {D}avid}, editor = {}, language = {{ENG}}, abstract = {{T}he small-scale features in sea surface temperature and salinity fields ({SST} and {SSS}) of the {C}oral {S}ea are examined using high horizontal spatial and short-term temporal in situ measurements. {T}hese features are extracted from thermosalinographs ({TSG}s) gathered onboard commercial and research vessels and at one long-term fixed station. {T}he analyses are performed along the vessel tracks and the structures of small-scale features are extracted by high-pass spatial filtering the original {TSG} data. {F}or {SSS}, it is shown that the features at the scale of mesoscale eddies (∼100 km) vary from about −1.1 to +0.6 psu in the {C}oral {S}ea region. {P}rocesses sustaining such range include rainfall events, stirring by mesoscale eddies, and the latitudinal displacement of the sharp front associated with the edge of the {W}estern {P}acific {W}arm {P}ool at the seasonal time scales. {T}he {TSG} data have revealed the presence of a sharp front (0.40.6 psu) between the subtropical and equatorial waters instead of a smooth gradient in the standard {SSS} climatologies. {W}ithin the context of recent remotely sensed observations of salinity, this could represent an important limitation for the validation and calibration of satellite products. {I}n addition to these spatial considerations, temporal variations at one long-term station near {V}anuatu show that the coupled air-sea responses to intraseasonal tropical variability, such as the {M}adden-{J}ulian {O}scillation, may have a signature in both {SST} and {SSS} fields. {H}owever, this response is found to be complex and not necessarily in phase. {I}n the {C}oral {S}ea region, our results suggest that {MJO}-induced variability on {SST} and {SSS} exhibit little coherency at the seasonal time scales.}, keywords = {{TEMPERATURE} {DE} {SURFACE} ; {SALINITE} ; {MESURE} {IN} {SITU} ; {DISTRIBUTION} {SPATIALE} ; {VARIATION} {TEMPORELLE} ; {INTERACTION} {OCEAN} {ATMOSPHERE} ; {ANALYSE} {STATISTIQUE} ; {MER} {DE} {CORAIL}}, booktitle = {}, journal = {{J}ournal of {G}eophysical {R}esearch.{O}ceans}, volume = {118}, numero = {}, pages = {1--13}, ISSN = {2169-9291}, year = {2013}, DOI = {10.1002/jgrc.20344}, URL = {https://www.documentation.ird.fr/hor/fdi:010060133}, }