%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ER446E
%@resumeid
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JHTG
%X Satellite ocean color images were used to determine the space-time variability of the Amazon River plume from 20002004. The relationship between sea-surface salinity (SSS) and the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) absorption coefficient for dissolved and detrital material (adg) (r2=0.76, n=30, rmse=0.4) was used to identify the Amazon River plume low-salinity waters (<34 psu). The plume's spatial information was extracted from satellite bi-weekly time series using two metrics: plume area and plume shape. These metrics identified the seasonal variability of plume dimensions and dispersion patterns. During the study period, the plume showed the largest areas from July to August and the smallest from December to January. The mean annual amplitude and the mean, maximum and minimum plume areas were 1020×103 km2, 680×103 km2, 1506×103 km2 and 268×103 km2, respectively. Three main shapes and dispersion pattern periods were identified: (1) flow to the northeastern South American coast, in a narrow band adjacent to the continental shelf, from January to April; (2) flow to the Caribbean region, from April to July; and (3) flow to the Central Equatorial Atlantic Ocean, from August to December. Cross-correlation techniques were used to quantify the relationship between the plume's spatial variability and environmental forcing factors, including Amazon River discharge, wind field and ocean currents. The results showed that (1) river discharge is the main factor influencing plume area variability, (2) the wind field regulates the plume's northwestward flow velocity and residence time near the river mouth, and (3) surface currents have a strong influence over river plume dispersion patterns.
%8 Feb.
%T Space-time variability of the Amazon River plume based on satellite ocean color
%@electronicmailaddress milton@dsr.inpe.br
%@secondarytype PRE PI
%K ocean color, river plume, Amazon river, SeaWiFS, Tropical Atlantic, space-time variability.
%@archivingpolicy denypublisher denyfinaldraft24
%@usergroup administrator
%@usergroup lattes
%@usergroup marciana
%@group DSR-OBT-INPE-MCT-BR
%@group DSR-OBT-INPE-MCT-BR
%@group DSR-OBT-INPE-MCT-BR
%@e-mailaddress milton@dsr.inpe.br
%3 molleri.pdf
%@secondarykey INPE--PRE/
%@secondarymark A1_CIÊNCIAS_BIOLÓGICAS_I B2_CIÊNCIAS_BIOLÓGICAS_III A2_ECOLOGIA_E_MEIO_AMBIENTE A2_ENGENHARIAS_I A2_ENGENHARIAS_II A2_ENGENHARIAS_III A2_GEOCIÊNCIAS A2_INTERDISCIPLINAR A2_SAÚDE_COLETIVA
%F lattes: 0063119667740811 3 MolleriNovoKamp:2010:SpVaAm
%@issn 0278-4343
%2 dpi.inpe.br/plutao@80/2010/06.25.16.25.52
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation undefined
%@affiliation undefined
%B Continental Shelf Research
%@versiontype publisher
%P 342-352
%4 dpi.inpe.br/plutao@80/2010/06.25.16.25.51
%@documentstage not transferred
%D 2010
%V 30
%@doi 10.1016/j.csr.2009.11.015
%A Molleri, Gustavo S. F.,
%A Novo, Evlyn M. L. de M.,
%A Kampel, Milton,
%@dissemination WEBSCI; PORTALCAPES.
%@area SRE