Holocene Climate Variation and Thermohaline Circulation in the Atlantic
Holocene Climate Variation and Thermohaline Circulation in the Atlantic
批准号:
9905605
负责人:
William Curry
金额:
$49.57万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-10-01 至 2004-03-31
中文摘要
这个ESH项目将测试这样一个假设,即全新世期间北大西洋的千年冷却事件是由热带地区的纬向热传输减少引起的。 将每隔250年对巴哈马和巴西边缘跨越温跃层深度(400- 1 000米)的高积累率沉积物岩心进行分析,以了解底栖和南极有孔虫的C和O同位素组成,重点是底栖18 O数据。 高纬度,地表水冷却和低纬度,温跃层变暖在这些网站之间的时间相关性将支持这一假设。
英文摘要
This ESH project will test the hypothesis that millenial cooling events in the North Atlantic during the Holocene are caused by reduced meridional heat transport from the tropics. High0accumulation-rate sediment cores from the Bahamas and the Brazil margin spanning thermocline depths (400-1000 m) will be analyzed at 250-year intervals for C and O isotopic composition of benthic and planktic foraminifera, with emphasis on the benthic 18 O data. A temporal correlation between high-latitude, surface water cooling and low-latitude, thermocline warming at these sites will support the hypothesis.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Sea Ice and Planktonic Foraminifera in the Arctic: Productivity and Geochemistry
-
批准号:0902707
-
项目类别:Standard Grant
-
资助金额:$30.98万
-
财政年份:2009
-
负责人:William Curry
-
依托单位:
Inverse Modeling of the Glacial Atlantic: An Expanded Tracer Data Set
-
批准号:0725965
-
项目类别:Standard Grant
-
资助金额:$25.08万
-
财政年份:2007
-
负责人:William Curry
-
依托单位:
Seafloor Samples Laboratory
-
批准号:0723307
-
项目类别:Continuing Grant
-
资助金额:$61.14万
-
财政年份:2007
-
负责人:William Curry
-
依托单位:
Collaborative Research: A SIMS and ICP-MS Calibration of Benthic Foraminiferal Elemental Chemistry
-
批准号:0550271
-
项目类别:Continuing Grant
-
资助金额:$31.47万
-
财政年份:2006
-
负责人:William Curry
-
依托单位:
Collaborative Research: Long Core Sea Trials
-
批准号:0631574
-
项目类别:Standard Grant
-
资助金额:$36.33万
-
财政年份:2006
-
负责人:William Curry
-
依托单位:
Meltwater Discharge in the Arctic During the Deglacial Period
-
批准号:0520073
-
项目类别:Standard Grant
-
资助金额:$31.92万
-
财政年份:2005
-
负责人:William Curry
-
依托单位:
Tropical Hydrography and Atlantic Salinity Since the Glacial Maximum Near the Bahamas
-
批准号:0502428
-
项目类别:Standard Grant
-
资助金额:$36.07万
-
财政年份:2005
-
负责人:William Curry
-
依托单位:
Seafloor Samples Laboratory
-
批准号:0354623
-
项目类别:Continuing Grant
-
资助金额:$40.49万
-
财政年份:2004
-
负责人:William Curry
-
依托单位:
A New Long Coring System for UNOLS Vessels
-
批准号:0237561
-
项目类别:Continuing Grant
-
资助金额:$372.39万
-
财政年份:2003
-
负责人:William Curry
-
依托单位:
Collaborative Research: Changes in the Strength of the Florida Current since the LGM
-
批准号:0096469
-
项目类别:Standard Grant
-
资助金额:$30.5万
-
财政年份:2002
-
负责人:William Curry
-
依托单位:
Seafloor Samples Laboratory
-
批准号:0099020
-
项目类别:Continuing Grant
-
资助金额:$30.0万
-
财政年份:2001
-
负责人:William Curry
-
依托单位:
The Paleoceanographic Utility of N. pachyderma in a Seasonally Ice-Covered Environment
-
批准号:0081147
-
项目类别:Standard Grant
-
资助金额:$13.05万
-
财政年份:2000
-
负责人:William Curry
-
依托单位:
Marine Earth System History (MESH) Planning Office Activities
-
批准号:9988088
-
项目类别:Continuing Grant
-
资助金额:$36.57万
-
财政年份:2000
-
负责人:William Curry
-
依托单位:
Seafloor Samples Laboratory
-
批准号:9711710
-
项目类别:Continuing Grant
-
资助金额:$27.77万
-
财政年份:1997
-
负责人:William Curry
-
依托单位:
Seafloor Samples Laboratory
-
批准号:9414202
-
项目类别:Continuing Grant
-
资助金额:$27.32万
-
财政年份:1995
-
负责人:William Curry
-
依托单位:
Reconstructing the Glacial Thermocline at Little Bahama Bank
-
批准号:9402804
-
项目类别:Standard Grant
-
资助金额:$8.75万
-
财政年份:1995
-
负责人:William Curry
-
依托单位:
Deep Water Circulation in the Western Equatorial Atlantic During the Last One Million Years
-
批准号:9503135
-
项目类别:Continuing Grant
-
资助金额:$32.89万
-
财政年份:1995
-
负责人:William Curry
-
依托单位:
Variability of the Monsoon and Biogenic Particle Flux in the Arabian Sea: Faunal and Isotopic Tracers
-
批准号:9311396
-
项目类别:Continuing Grant
-
资助金额:$25.6万
-
财政年份:1994
-
负责人:William Curry
-
依托单位:
Acquisition of a Gas-Source Ratio Mass Spectrometer for Paleoclimatology and Paleoceanography Research at WHOI
-
批准号:9203187
-
项目类别:Standard Grant
-
资助金额:$15.0万
-
财政年份:1993
-
负责人:William Curry
-
依托单位:
Cenozoic Deep Water History on Ceara Rise: An Integrated Geophysical and Sedimentological Survey
-
批准号:9116303
-
项目类别:Standard Grant
-
资助金额:$34.2万
-
财政年份:1992
-
负责人:William Curry
-
依托单位:
海外基金