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
Intensification of the meridional temperature gradient in the Great Barrier Reef following the Last Glacial Maximum ArchiMer
Felis, Thomas; Mcgregor, Helen V.; Linsley, Braddock K.; Tudhope, Alexander W.; Gagan, Michael K.; Suzuki, Atsushi; Inoue, Mayuri; Thomas, Alexander L.; Esat, Tezer M.; Thompson, William G.; Tiwari, Manish; Potts, Donald C.; Mudelsee, Manfred; Yokoyama, Yusuke; Webster, Jody M..
Tropical south-western Pacific temperatures are of vital importance to the Great Barrier Reef (GBR), but the role of sea surface temperatures (SSTs) in the growth of the GBR since the Last Glacial Maximum remains largely unknown. Here we present records of Sr/Ca and delta O-18 for Last Glacial Maximum and deglacial corals that show a considerably steeper meridional SST gradient than the present day in the central GBR. We find a 1-2 degrees C larger temperature decrease between 17 degrees and 20 degrees S about 20,000 to 13,000 years ago. The result is best explained by the northward expansion of cooler subtropical waters due to a weakening of the South Pacific gyre and East Australian Current. Our findings indicate that the GBR experienced substantial...
Tipo: Text
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00290/40136/39239.pdf
Imagem não selecionada

Imprime registro no formato completo
Palaeoenvironmental change in tropical Australasia over the last 30,000 years - a synthesis by the OZ-INTIMATE group ArchiMer
Reeves, Jessica M.; Bostock, Helen C.; Ayliffe, Linda K.; Barrows, Timothy T.; De Deckker, Patrick; Devriendt, Laurent S.; Dunbar, Gavin B.; Drysdale, Russell N.; Fitzsimmons, Kathryn E.; Gagan, Michael K.; Griffiths, Michael L.; Haberle, Simon G.; Jansen, John D.; Krause, Claire; Lewis, Stephen; Mcgregor, Helen V.; Mooney, Scott D.; Moss, Patrick; Nanson, Gerald C.; Purcell, Anthony; Van Der Kaars, Sander.
The tropics are the major source of heat and moisture for the Australasian region. Determining the tropics' response over time to changes in climate forcing mechanisms, such as summer insolation, and the effects of relative sea level on exposed continental shelves during the Last Glacial period, is an ongoing process of re-evaluation. We present a synthesis of climate proxy data from tropical Australasia spanning the last 30,000 years that incorporates deep sea core, coral, speleothem, pollen, charcoal and terrestrial sedimentary records. Today, seasonal variability is governed largely by the annual migration of the inter-tropical convergence zone (ITCZ), influencing this region most strongly during the austral summer. However, the position of the ITCZ has...
Tipo: Text Palavras-chave: ITCZ; LGM; INTIMATE; Australasia; Indo-Pacific Warm Pool; Tropics; Australian monsoon.
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00264/37502/36909.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