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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Discrepancies between satellite-derived and in situ SST data in the Cape Frio Upwelling System, Southeastern Brazil (23 & x2da;S)

Texto completo
Autor(es):
Pereira, F. [1] ; Bouali, M. [1] ; Polito, P. S. [1] ; da Silveira, I. C. A. [1] ; Candella, R. N. [2]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Oceanog, BR-05508 Sao Paulo, SP - Brazil
[2] Inst Estudos Mar Almirante Paulo Moreira IEAPM, Marinha Do Brasil, Arraial Do Cabo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: REMOTE SENSING LETTERS; v. 11, n. 6, p. 555-562, JUN 2 2020.
Citações Web of Science: 0
Resumo

Satellite-derived sea surface temperature (SST) presents discrepancies in both magnitude and temporal variability in the wind-driven coastal upwelling region off the Cape Frio (23 degrees S) in Southeastern Brazil. Level 2 (L2) data from the Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua, and Level 4 (L4) SST products are compared with in situ measurements. Strong positive biases up to 4 degrees C are systematically observed in L4 products during upwelling events and decrease to less than 1 degrees C in non-upwelling days. Lower biases were found in L2 MODIS SST, and the statistical performance of L4 SST products did not present significant improvements in days when high-resolution clear-sky observations from MODIS were available. This indicates that spatio-temporal interpolation and ingestion of microwave-based data sets in L4 SST analyses are likely the main cause of observed discrepancies during upwelling events. Improved L2 SST retrieval algorithms and L4 SST analyses that take into account upwelling-related regional characteristics are required for more accurate satellite SST products over coastal regions. (AU)

Processo FAPESP: 17/04887-0 - Estimativa de campos de Temperatura de Superfície do Mar (TSM) de alta resolução usando dados satélites multisensor
Beneficiário:Marouan Bouali
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 18/00528-9 - Estimativa de campos de temperatura de superfície do mar (TSM) de alta resolução usando dados satélites multisensor
Beneficiário:Marouan Bouali
Linha de fomento: Bolsas no Brasil - Apoio a Jovens Pesquisadores