Paleoclimate in Southern South America and Its Relation to Antarctic Paleoclimates
南美洲南部的古气候及其与南极古气候的关系
基本信息
- 批准号:9003839
- 负责人:
- 金额:$ 37.7万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1991
- 资助国家:美国
- 起止时间:1991-03-01 至 1994-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The existence of the rapid, Younger Dryas climate event in the southern hemisphere is still a matter of great debate. If this event had detectable effects in the southern hemisphere, then variations in climate caused by internal oscillations may be important for altering climate on a global scale. This proposal requests support to reconstruct the high frequency changes in climate observed in the southern hemisphere during the last glacial-interglacial transition, the time of the Younger Dryas event. The paleoclimate records will be based on pollen assemblage variations and D/H ratios in peat sections. D/H ratios are a function of temperature and moisture availability. The PIs wish to calibrate the D/H variations for this region and then use the calibration to quantify the variations in the past. Thus the D/H ratios will supplement the pollen data and help to identify what climate parameters changed during the deglaciation. This research is important because we do not yet know the history of climate in the southern hemisphere. It is necessary to understand the extent of climate change in this hemisphere before we fully understand the mechanisms of abrupt climate change.
快速的新仙女木气候事件的存在 南半球仍然是一个有很大争议的问题。 如果 这一事件在南半球产生了可察觉的影响, 那么由内部振荡引起的气候变化可能 对改变全球气候很重要。 这项建议 请求支持重建高频变化, 在南半球观测到的气候 冰川-间冰期的过渡,即新仙女木期 活动 古气候记录将基于花粉 泥炭剖面的组合变化和D/H比值。 D/H 比率是温度和湿度可用性的函数。 PI希望校准该区域的D/H变化, 然后使用校准来量化过去的变化。 因此,D/H比值将补充花粉数据,并有助于 确定冰川消退期间气候参数发生了哪些变化。 这项研究很重要,因为我们还不知道历史 南半球的气候。 有必要 了解这个半球气候变化的程度, 我们完全了解气候突变的机制。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Vera Markgraf其他文献
Dictionary of Global Climate Change
全球气候变化词典
- DOI:
10.2307/1551928 - 发表时间:
1993 - 期刊:
- 影响因子:0
- 作者:
Vera Markgraf;W. John Maunder - 通讯作者:
W. John Maunder
R. W. Battarbee, F. Gasse and C. E. Stickley (eds), Past Climate Variability through Europe and Africa, volume 6
- DOI:
10.1007/s10933-005-5270-3 - 发表时间:
2006-08-24 - 期刊:
- 影响因子:1.300
- 作者:
Vera Markgraf - 通讯作者:
Vera Markgraf
Vera Markgraf的其他文献
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{{ truncateString('Vera Markgraf', 18)}}的其他基金
Collaborative Research: Patagonian Lake Drilling Project (PATO) Phase II
合作研究:巴塔哥尼亚湖钻探项目(PATO)二期
- 批准号:
0082067 - 财政年份:2000
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
Patagonia Lake Drilling Project (PATO): Phase I
巴塔哥尼亚湖钻探项目 (PATO):第一阶段
- 批准号:
9709145 - 财政年份:1997
- 资助金额:
$ 37.7万 - 项目类别:
Standard Grant
Support for the Scientific Meeting: PEP 1--Paleoclimate of the Americas; Merida, Venezuela; March 16-20, 1998
支持科学会议:PEP 1——美洲古气候;
- 批准号:
9729145 - 财政年份:1997
- 资助金额:
$ 37.7万 - 项目类别:
Standard Grant
Coordination of PEP I Research Activities
PEP I 研究活动的协调
- 批准号:
9526139 - 财政年份:1995
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
Multivariate Paleoclimatic Analysis in Southern South America with Emphasis on Transitional Periods
南美洲南部的多元古气候分析,重点是过渡时期
- 批准号:
9321857 - 财政年份:1994
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
Conference on Lake Quarternary Paleoclimates in the Ameri- cas: Dynamics of Past Climate Change and its Forcing Along a Transect from Pole to Pole; Panama; September 10-12, 1993
美洲第四纪湖古气候会议:过去气候变化的动态及其沿极地间断面的强迫;
- 批准号:
9302551 - 财政年份:1993
- 资助金额:
$ 37.7万 - 项目类别:
Standard Grant
Late Quaternary Paleoclimates: A Pole to Pole Transect for the Western Hemisphere (P.E.P.)
晚第四纪古气候:西半球的极地断面(P.E.P.)
- 批准号:
9024958 - 财政年份:1991
- 资助金额:
$ 37.7万 - 项目类别:
Standard Grant
Late-Glacial and Holocene Climate of the Andes in the Mid- Latitudes of South America
南美洲中纬度安第斯山脉的晚冰期和全新世气候
- 批准号:
8618217 - 财政年份:1987
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
Antarctic Paleoclimates Derived from Paleoenvironmental Records in Tierra del Fuego
来自火地岛古环境记录的南极古气候
- 批准号:
8613980 - 财政年份:1987
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
Paleoclimatic Chronology of Temperate and Subtropical Argentina
阿根廷温带和亚热带古气候年表
- 批准号:
8212836 - 财政年份:1983
- 资助金额:
$ 37.7万 - 项目类别:
Continuing Grant
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