Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados ArchiMer (2) Autor Schneider, Ralph R. (2) Andersen, Nils (1) Blanz, Thomas (1) Friedrich, Tobias (1) Larsen, Thomas (1) Leduc, Guillaume (1) Regenberg, Marcus (1) Timmermann, Axel (1) Wang, Yiming V. (1) Weldeab, Syee (1) Mais... Palavra-chave Ca paleothermometry (1) Deglacial tropical Atlantic (1) Heat accumulation (1) Heinrich events 1 and Younger Dryas (1) Interhemispheric heat exchange (1) Last Deglacial (1) Mg (1) Middepth warming (1) Sea surface temperature (1) Tropical Indian Ocean (1) Mais... Tipo do documento Text (2) Ano 2016 (1) 2013 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Northern and southern hemisphere controls on seasonal sea surface temperatures in the Indian Ocean during the last deglaciation ArchiMer Wang, Yiming V.; Leduc, Guillaume; Regenberg, Marcus; Andersen, Nils; Larsen, Thomas; Blanz, Thomas; Schneider, Ralph R.. Different proxies for sea surface temperature (SST) often exhibit divergent trends for deglacial warming in tropical regions, hampering our understanding of the phase relationship between tropical SSTs and continental ice volume at glacial terminations. To reconcile divergent SST trends, we report reconstructions of two commonly used paleothermometers (the foraminifera G. ruber Mg/Ca and the alkenone unsaturation index) from a marine sediment core collected in the southwestern tropical Indian Ocean encompassing the last 37,000 years. Our results show that SSTs derived from the alkenone unsaturation index (U-37(K)) are consistently warmer than those derived from Mg/Ca by similar to 2-3 degrees C except for the Heinrich Event 1. In addition, the initial... Tipo: Text Palavras-chave: Sea surface temperature; Tropical Indian Ocean; Last Deglacial. Ano: 2013 URL: https://archimer.ifremer.fr/doc/00291/40174/39037.pdf Strong middepth warming and weak radiocarbon imprints in the equatorial Atlantic during Heinrich 1 and Younger Dryas ArchiMer Weldeab, Syee; Friedrich, Tobias; Timmermann, Axel; Schneider, Ralph R.. We present a benthic foraminiferal multiproxy record of eastern equatorial Atlantic (EEA) middepth water (1295m) covering the last deglacial. We show that EEA middepth water temperatures were elevated by 3.90.5 degrees C and 5.21.2 degrees C during Heinrich event 1 (H1) and Younger Dryas (YD), respectively. The radiocarbon content of the EEA middepth during H1 and YD is relatively low and comparable to the values of the pre-H1 episode and BOlling-AllerOd, respectively. A transient Earth system model simulation, which mimics the observed deglacial Atlantic Meridional Overturning Circulation (AMOC) history, qualitatively reproduces the major features of the EEA proxy records. The simulation results suggest that fresh water-induced weakening of the AMOC leads... Tipo: Text Palavras-chave: Deglacial tropical Atlantic; Middepth warming; Heinrich events 1 and Younger Dryas; Mg; Ca paleothermometry; Heat accumulation; Interhemispheric heat exchange. Ano: 2016 URL: https://archimer.ifremer.fr/doc/00421/53228/54788.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