@article{PAR00000445, title = {{T}ropical instability waves at 0 degrees {N}, 23 degrees {W} in the {A}tlantic : a case study using {P}ilot {R}esearch {M}oored {A}rray in the {T}ropical {A}tlantic ({PIRATA}) mooring data}, author = {{G}rodsky, {S}. {A}. and {C}arton, {J}. {A}. and {P}rovost, {C}. and {S}ervain, {J}acques and {L}orenzzetti, {J}. {A}. and {M}c{P}haden, {M}. {J}.}, editor = {}, language = {{ENG}}, abstract = {{T}emperature, salinity, velocity, and wind from a mooring at 0 degrees {N}, 23 degrees {W} are used along with satellite data for sea surface temperature and sea level to examine the contribution of tropical instability waves ( {TIW}s) to the energy and heat balance of the equatorial {A}tlantic mixed layer. {T}he {TIW}s appear as periodic 20 - 30 day fluctuations of currents, temperature, and salinity, which intensify beginning in {J}une and peak in late boreal summer. {T}he intensification occurs in phase with strengthening of the southeasterly trade winds and the seasonal appearance of the equatorial tongue of cold mixed layer temperatures. {I}n 2002 these waves, which warm the mixed layer by 0.35 degrees {C} during summer months, are maintained by both barotropic and baroclinic conversions that are of comparable size. {S}alinity fluctuations, previously neglected, increase the magnitude of baroclinic energy conversion.}, keywords = {{ATLANTIQUE} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{J}ournal of {G}eophysical {R}esearch {O}ceans}, volume = {110}, numero = {{C}8}, pages = {{C}08010 [ {NIL}_1--{NIL}_12]}, ISSN = {0148-0227}, year = {2005}, URL = {https://www.documentation.ird.fr/hor/{PAR}00000445}, }