Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 2
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Reconstruction of Indian summer monsoon winds and precipitation over the past 10,000 years using equatorial pacific SST proxy records ArchiMer
Gill, Emily C.; Rajagopalan, Balaji; Molnar, Peter H.; Kushnir, Yochanan; Marchitto, Thomas M..
Using a multiproxy reduced dimension methodology, we reconstruct fields of Arabian Sea summer wind stress curl and Indian monsoon rainfall anomalies since early Holocene using sea surface temperature (SST) proxies (Mg/Ca and alkenones) from 27 locations scattered across the equatorial Pacific. Reconstructions of summer wind stress curl reveal positive anomalies of similar to 30% greater than present day off the coastlines of Oman and Yemen at 10 ka, suggesting enhanced ocean upwelling and an enhanced monsoon jet during this time. Positive wind stress curl anomalies in these regions continued but weakened to similar to 12% greater than present day at 6 ka. Wind stress curl anomalies increased by about 8% from 6 to 4 ka but declined again until 2 ka....
Tipo: Text
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00495/60715/65320.pdf
Imagem não selecionada

Imprime registro no formato completo
Reduced-dimension reconstruction of the equatorial Pacific SST and zonal wind fields over the past 10,000years using Mg/Ca and alkenone records ArchiMer
Gill, Emily C.; Rajagopalan, Balaji; Molnar, Peter; Marchitto, Thomas M..
We develop a multiproxy, reduced-dimension methodology to blend magnesium-calcium (Mg/Ca) and alkenone (U 37k) paleo sea surface temperature (SST) records from the eastern and western equatorial Pacific, to recreate snapshots of full field SSTs and zonal winds from 10 to 2ka B.P. in 2000year increments. Single-proxy reconstructions (Mg/Ca only versus U 37K only) reveal differences in the timing and duration of maximum cooling across the east-central equatorial Pacific. The largest zonal temperature differences (average west Pacific SST minus average east Pacific SST) occur at 6ka B.P. for the Mg/Ca-only reconstruction (0.61 degrees C) and at 10 and 4ka for the U 37K-only reconstruction (0.55 degrees C and 0.47 degrees C, respectively). Disagreements...
Tipo: Text Palavras-chave: Sea surface temperatures; ENSO; Holocene; Multiproxy field reconstruction; Equatorial Pacific; Reduced-dimension.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00421/53232/54785.pdf
Registros recuperados: 2
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional