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	Provedor de dados ArchiMer (2) Autor Barker, Stephen (1) Hall, Ian R. (1) Karr, Jd (1) Moffa-sanchez, Paola (1) Showers, Wj (1) Thornalley, David J. R. (1) Yashayaev, Igor (1) Mais... Palavra-chave 18O (2) &#x03B4 (1) Amazon (1) Amazone (1) Ca (1) Deuterium (1) Deutérium (1) Hydrography (1) Hydrologie (1) Isotope (1) Isotopes (1) Last millennium (1) Mg (1) O-18 (1) Planktonic foraminifera (1) Surface Labrador Sea (1) Mais... Tipo do documento Text (2) Ano 2014 (1) 2002 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Stable oxygen and hydrogen isotopic tracers in Amazon shelf waters during Amasseds ArchiMer Karr, Jd; Showers, Wj. A detailed hydrographic survey of the water column of the Amazon shelf was performed using stable oxygen and hydrogen isotopes to determine the source and fate of waters on the shelf. delta(18)O-H2O and deltaD measurements were made on water column samples from approximately 60 stations (three depths per station) which were each collected during four Amasseds (A Multidisciplinary Amazon Shelf SEDiment Study) cruises: I8909-August 1989, falling river discharge; I9002-March 1990, rising river discharge; I9004-May 1990, peak discharge: I9113-November 1991, minimum discharge. Isotopes were compared with salinity and temperature measurements in order to identify water masses and mixing. The characteristics (salinity, temperature, delta(18)O, deltaD and d) are... Tipo: Text Palavras-chave: Amazone; Isotopes; 18O; Deutérium; Hydrologie; Amazon; Isotope; O-18; Deuterium; Hydrography. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43321/42933.pdf Surface changes in the eastern Labrador Sea around the onset of the Little Ice Age ArchiMer Moffa-sanchez, Paola; Hall, Ian R.; Barker, Stephen; Thornalley, David J. R.; Yashayaev, Igor. Despite the relative climate stability of the present interglacial, it has been punctuated by several centennial-scale climatic oscillations; the latest of which are often colloquially referred to as the Medieval Climatic Anomaly (MCA) and the Little Ice Age (LIA). The most favored explanation for the cause of these anomalies is that they were triggered by variability in solar irradiance and/or volcanic activity and amplified by ocean-atmosphere-sea ice feedbacks. As such, changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) are widely believed to have been involved in the amplification of such climatic oscillations. The Labrador Sea is a key area of deep water formation. The waters produced here contribute approximately one... Tipo: Text Palavras-chave: Planktonic foraminifera; δ 18O; Mg; Ca; Surface Labrador Sea; Last millennium. Ano: 2014 URL: https://archimer.ifremer.fr/doc/00290/40167/39108.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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