@article{fdi:010054246, title = {{I}n situ validation of {J}ason-1 and {J}ason-2 altimetry missions in the {T}ropical {A}tlantic {O}cean}, author = {{A}rnault, {S}abine and {P}ujol, {I}. and {M}{\'e}lice, {J}ean-{L}uc}, editor = {}, language = {{ENG}}, abstract = {{N}early 20 years of altimetry data provide a new tool for studying low frequency variability in the ocean. {H}owever, in the tropics, where a few centimeters of uncertainty in sea level can result in large errors in velocity, accuracy is a problem. {T}he {ARAMIS} program ({A}ltimetrie sur un {R}ail {A}tlantique et {M}esures in {S}itu) surveyed temperature and salinity structures in the tropical {A}tlantic {O}cean. {I}n this work, in situ measurements are compared to {J}ason-1 and -2 data from 2008 in order to check the reliability of inferring tropical {A}tlantic {O}cean dynamics from both data sets, and to validate {J}ason-2.}, keywords = {{A}ltimetry ; tropics ; {A}tlantic ; {OCEAN} {ATLANTIQUE}}, booktitle = {}, journal = {{M}arine {G}eodesy}, volume = {34}, numero = {3-4}, pages = {319--339}, ISSN = {0149-0419}, year = {2011}, DOI = {10.1080/01490419.2011.584833}, URL = {https://www.documentation.ird.fr/hor/fdi:010054246}, }