@article{fdi:010069354, title = {{T}he {E}ast {C}aledonian {C}urrent : a case example for the intercomparison between {A}lti{K}a and in situ measurements in a boundary current}, author = {{D}urand, {F}abien and {M}arin, {F}r{\'e}d{\'e}ric and {F}uda, {J}. {L}. and {T}erre, {T}.}, editor = {}, language = {{ENG}}, abstract = {{T}his paper presents an assessment of {SARAL}/{A}lti{K}a satellite altimeter for the monitoring of a tropical western boundary current in the southwestern {P}acific {O}cean: the {E}ast {C}aledonian {C}urrent. {W}e compare surface geostrophic current estimates obtained from two versions of {A}lti{K}a along-track sea level height ({AVISO} 1 {H}z and {PEACHI} 40 {H}z) with two kinds of dedicated in situ datasets harvested along the satellite ground tracks: one deep-ocean current-meter mooring deployed in the core of the boundary current and five glider transects. {I}t is concluded that the {A}lti{K}a-derived current successfully captures the velocity of the boundary current, with a standard error of 11 cm/s with respect to the in situ data. {I}t also appears important to reference {A}lti{K}a sea level anomaly to the latest mean dynamic topography available in our area. {D}oing so, {K}a-band altimetry provides a satisfactory representation of the western boundary current. {T}hereby, it usefully contributes to observing its variability in such a remote and underobserved ocean region. {H}owever, the rather long repeat period of {SARAL} (35 days) in comparison to the high frequency variability seen in the flow velocity of the boundary current calls for a combined use of {SARAL} with the other satellite altimetry missions.}, keywords = {{A}lti{K}a ; coastal altimetry ; {E}ast {C}aledonian {C}urrent ; glider ; {SPICE} ; {WBC} ; {PACIFIQUE} ; {NOUVELLE} {CALEDONIE}}, booktitle = {}, journal = {{M}arine {G}eodesy}, volume = {40}, numero = {1}, pages = {1--22}, ISSN = {0149-0419}, year = {2017}, DOI = {10.1080/01490419.2016.1258375}, URL = {https://www.documentation.ird.fr/hor/fdi:010069354}, }