Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Ocean circulation influences on sea surface temperature in the equatorial central Pacific
Autore:
Wang, CZ; Weisberg, RH;
Indirizzi:
NOAA, Atlantic Oceanog & Meteorol Lab, PhOD, Miami, FL 33149 USA NOAA Miami FL USA 33149 Oceanog & Meteorol Lab, PhOD, Miami, FL 33149 USA Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA Univ S Florida St Petersburg FL USA 33701 ci, St Petersburg, FL 33701 USA
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
fascicolo: C9, volume: 106, anno: 2001,
pagine: 19515 - 19526
SICI:
0148-0227(20010915)106:C9<19515:OCIOSS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEASONAL CYCLE; ATLANTIC-OCEAN; VARIABILITY; HEAT; TURBULENCE; MOMENTUM; FLUXES; WAVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, CZ NOAA, Atlantic Oceanog & Meteorol Lab, PhOD, 4301 Rickenbacker Causeway, Miami, FL 33149 USA NOAA 4301 Rickenbacker Causeway Miami FL USA 33149 , FL 33149 USA
Citazione:
C.Z. Wang e R.H. Weisberg, "Ocean circulation influences on sea surface temperature in the equatorial central Pacific", J GEO RES-O, 106(C9), 2001, pp. 19515-19526

Abstract

Velocity data from an array of acoustic Doppler current profilers moored about 0 degrees, 140 degreesW from May 1990 through June 1991 during the Tropical Instability Wave Experiment are used in conjunction with Tropical Atmosphere-Ocean array data and a blended sea surface temperature (SST) product to study the processes that control SST variations. The horizontal velocity data allow us to calculate the vertical velocity component by verticallyintegrating the continuity equation. Given the three-dimensional temperature flux divergence, we examine the role of the ocean circulation in SST. Upwelling and downwelling are found to be associated with cooling and warming, respectively, suggesting that a vertical velocity component of either sign affects SST. Both the temperature flux divergence and advective formulations for the ocean circulation's influence on the temperature budget show times when the ocean circulation appears to provide the primary control on SST and times when this is not the case, with the flux divergence formulationperforming better than the advective formulation. Statistically, within a bandwidth encompassing the tropical instability waves and the intraseasonalvariations, roughly half of the SST variation is accounted for by the ocean circulation. These results are encouraging, given that data sets with different spatial and temporal scales have been used. They suggest that futurefield experimentation which utilizes a flux divergence array with velocityand temperature data sampled at the same spatial and temporal scales will yield quantitatively improved results. The analyses also show that the ocean circulation, on average, provides a cooling effect requiring the net surface heat flux to be positive to maintain the mean background state. The cooling effect is mainly controlled by mean ocean circulation and temperature fields.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 20:46:37