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Reconstruction Of Sea Surface Temperatures From Asseblages Of Planktonic Foraminifera Supplementary Data To Kucera Michal Weinelt Mara Kiefer Thorsten Pflaumann Uwe Hayes Angela Weinelt Martin Chen Min Te Mix Alan C Barrows Timothy T Cortijo Elsa Duprat Josette Juggins Steve Waelbroeck Claire 2005 Reconstruction Of Sea Surface Temperatures From Assemblages Of Planktonic Foraminifera Multi Technique Approach Based On Geographically Constrained Calibration Datasets And Its Application To Glacial Atlantic And Pacific Oceans Quaternary Science Reviews 247 9 951 998
Download Reconstruction Of Sea Surface Temperatures From Asseblages Of Planktonic Foraminifera Supplementary Data To Kucera Michal Weinelt Mara Kiefer Thorsten Pflaumann Uwe Hayes Angela Weinelt Martin Chen Min Te Mix Alan C Barrows Timothy T Cortijo Elsa Duprat Josette Juggins Steve Waelbroeck Claire 2005 Reconstruction Of Sea Surface Temperatures From Assemblages Of Planktonic Foraminifera Multi Technique Approach Based On Geographically Constrained Calibration Datasets And Its Application To Glacial Atlantic And Pacific Oceans Quaternary Science Reviews 247 9 951 998 full books in PDF, epub, and Kindle. Read online Reconstruction Of Sea Surface Temperatures From Asseblages Of Planktonic Foraminifera Supplementary Data To Kucera Michal Weinelt Mara Kiefer Thorsten Pflaumann Uwe Hayes Angela Weinelt Martin Chen Min Te Mix Alan C Barrows Timothy T Cortijo Elsa Duprat Josette Juggins Steve Waelbroeck Claire 2005 Reconstruction Of Sea Surface Temperatures From Assemblages Of Planktonic Foraminifera Multi Technique Approach Based On Geographically Constrained Calibration Datasets And Its Application To Glacial Atlantic And Pacific Oceans Quaternary Science Reviews 247 9 951 998 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Download or read book MARGO written by M. Kucera and published by Elsevier. This book was released on 2006-04-10 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: MARGO - Multiproxy Approach for the Reconstruction of the Glacial Ocean surface summarizes the results of the MARGO international working group, with the aim to develop an updated and harmonised reconstruction of sea surface temperatures and sea-ice extent of the Last Glacial Maximum oceans. The MARGO approach differs from previous efforts by developing and consistently applying measures of various aspects of reconstruction reliability, and by combining faunal and geochemical proxies. In 14 papers, the volume provides a comprehensive review of earlier work and a series of new, proxy-specific reconstructions based on census counts of planktonic foraminifera, diatoms, radiolaria and dinoflagellate cysts as well as on Mg/Ca measurements in planktonic foraminifera. The approach of harmonising the calibration and application of different proxies is described in detail, various paleothermometry techniques and their results are compared and the challenge of treating sparsely sampled data as the basis for ocean circulation models is addressed. The use of stable oxygen isotope composition of foraminiferal shells as a proxy for past sea water composition is comprehensively reassessed, and a new approach to the transfer function paleothermometer is presented. This volume represents a landmark contribution to the understanding of ice-age oceanography as well as the proxies used to reconstruct past ocean states. The results will form the basis for forcing and validation of ocean circulation models. New regional reconstructions of Last Glacial Maximum ocean temperatures and sea ice cover Compilation of new calibration and fossil datasets as well as documentation of techniques and approaches to paleoenvironmental reconstructions Comparison of techniques, proxies and modelling approaches
Book Synopsis Tropical North Atlantic Sea Surface Temperature Reconstruction for the Last 800 Years Using Mg/Ca Ratios in Planktic Foraminifera by : Matthew A. Abahazi
Download or read book Tropical North Atlantic Sea Surface Temperature Reconstruction for the Last 800 Years Using Mg/Ca Ratios in Planktic Foraminifera written by Matthew A. Abahazi and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global warming is an important scientific and cultural problem for our time. As such, determining the historical sea surface temperatures is critical to our understanding of past, present and future climate change. In order to assess the patterns of prior climate change and establish reliable records upon which future predictions of climate change can be based, it is necessary to measure and calibrate climate change proxies. The samples used for this study come from a 56.5 cm box core retrieved in 1990 from 450 m depth in the Cariaco basin. Consecutive 1mm-thick samples were taken and processed for the planktic foraminifera species Globigerina bulloides for Mg/Ca analyses to estimate sea-surface temperature (SSTs) during the winter/spring upwelling season. The Mg/Ca values were obtained using an ICP-AES and later used in comparison with historical instrumental records to derive an equation to reconstruct sea-surface temperatures during the last 800 years. The record derived from this core indicates a high amount of variability in sea-surface temperatures over this 800 year interval. The Medieval Warm Period had considerable temperature variability that was previously not well-documented. Average sea-surface temperatures over this time period are 26.2°C with slight cooling toward the end of the period. The Little Ice Age is marked by the coldest temperatures of the Late Holocene record, averaging approximately 25.6°C. The coldest period within the LIA is coincident with the Maunder Minimum in the core record. Modern temperatures as recorded by instrumental records and from the proxies recovered from the core is increasing at rates greater than they have in the past 800 years represented in this sediment-core record. This study is one of the first of its kind to present a high-resolution, sea surface temperature record for the tropics. The proxy equation can be used in the region to further delineate climate variability in the Late Holocene.
