ITR: Development of an enhanced computer-assisted analysis system for earth science investigation of laminated sediments and tree rings
ITR: Development of an enhanced computer-assisted analysis system for earth science investigation of laminated sediments and tree rings
批准号:
0219075
负责人:
Jonathan Overpeck
金额:
$43.65万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-09-01 至 2006-08-31
中文摘要
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英文摘要
0219075OverpeckNatural archives with year-by-year resolution (isannual resolution proxieslo), such as tree-rings, varved sediments, corals, mollusks, and speleothems, are becoming increasingly critical for understanding the nature of past environmental variability, and how it may change in the future. The most obvious use of these archives is in understanding the patterns and causes of natural interannual to century-scale climate variability, and how humans may be altering this variability. They are also central, however, to an increasingly broad range of Earth Science applications, including documenting paleoseismicity, calibrating the radiocarbon time scale, investigating hydrologic variability, and understanding paleoecosystem dynamics. Their capability to provide the absolute time scale needed to understand these dynamics on many societally-relevant time scales is particularly important. At present, extracting information from these sources is extraordinarily labor-intensive, resulting in undesirable limitations on temporal resolution and replication that result in excessive uncertainties concerning the environmental signals of interest. This applies even when sophisticated detectors are used to make basic measurements, since great care must be taken in stringing series of measurements together into very long time series whilst retaining all information that might turn out to be useful later in the analysis. Existing image-analysis software alone cannot solve this problem. The labor-intensive analysis that these records require has created a strong incentive to develop instrumentation that can be used to process samples more efficiently, and with more interpretive power than is available from off-the- shelf image processing software.This Information Technology Research Small Grants Program (ITR) award will support the development of software for automated counting of annually laminated climate change proxies (tree rings and varves). The developments are based on a prototype computer-assisted dendrochronology workstation and associated control and image analysis software (TREES v. 1) that was previously funded to co-PI Schowengerdt by NSF's Anthropology program (BCS-9601867). This award will support the creation of TREES v.2, a Linux-based PC version of TREES v.1, which was written exclusively for the SUN platform, and VARVES v.1, also Linux-based software designed to automate counting of laminated lake and marine sediments. ***
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Collaborative Research: Understanding the Full Range of Amazon Drought and Impacts
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批准号:1304083
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项目类别:Continuing Grant
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资助金额:$43.35万
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财政年份:2014
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负责人:Jonathan Overpeck
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依托单位:
RAPID: Securing the Climate, Limnological and Sediment Data Needed to Understand and Calibrate Multi-millennial Records of ENSO in the Eastern Pacific
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批准号:1256970
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项目类别:Standard Grant
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资助金额:$3.53万
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财政年份:2012
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负责人:Jonathan Overpeck
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依托单位:
Reducing and Representing Uncertainties in High-Resolution Proxy Climate Data Workshop; Trieste, Italy; June 9-11, 2008
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批准号:0832989
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项目类别:Standard Grant
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资助金额:$1.5万
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财政年份:2008
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负责人:Jonathan Overpeck
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依托单位:
Collaborative Research: High-Resolution, Low-Latitude Paleoclimatology From Newly Acquired Sediment Drill Cores From Lake Bosumtwi, Ghana
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批准号:0601998
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项目类别:Standard Grant
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资助金额:$24.47万
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财政年份:2006
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负责人:Jonathan Overpeck
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依托单位:
Collaborative Research: A Synthesis of the Last 2000 Years of Climatic Variability from Arctic Lakes
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批准号:0450938
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项目类别:Standard Grant
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资助金额:$11.1万
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财政年份:2005
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负责人:Jonathan Overpeck
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依托单位:
Collaborative Research: High-Resolution, Low-Latitude Paleoclimatology Through Scientific Drilling of Lake Bosumtwi, Ghana
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批准号:0401908
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项目类别:Standard Grant
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资助金额:$6.09万
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财政年份:2004
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负责人:Jonathan Overpeck
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依托单位:
Varved Records of Decade- to Century-Scale Climate Variability in the Tropical Atlantic Sector
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批准号:0214525
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项目类别:Standard Grant
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资助金额:$16.7万
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财政年份:2002
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负责人:Jonathan Overpeck
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依托单位:
COLLABORATIVE RESEARCH: Century-Scale Variability in the Asian Southwest Monsoon
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批准号:0082116
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项目类别:Continuing Grant
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资助金额:$11.94万
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财政年份:2000
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负责人:Jonathan Overpeck
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依托单位:
Climate Change of the Last 500 Years: Simulations Versus Data
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批准号:0096272
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项目类别:Continuing Grant
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资助金额:$27.0万
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财政年份:1999
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负责人:Jonathan Overpeck
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依托单位:
Collaborative Researach: Lake Bosumtwi, Ghana: High-resolution Paleoclimatogy and Seismic Reflection Site Survey
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批准号:0096232
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项目类别:Continuing Grant
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资助金额:$18.37万
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财政年份:1999
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负责人:Jonathan Overpeck
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依托单位:
Collaborative Researach: Lake Bosumtwi, Ghana: High-resolution Paleoclimatogy and Seismic Reflection Site Survey
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批准号:9810254
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项目类别:Continuing Grant
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资助金额:$18.37万
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财政年份:1998
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负责人:Jonathan Overpeck
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依托单位:
Climate Change of the Last 500 Years: Simulations Versus Data
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批准号:9631282
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项目类别:Continuing Grant
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资助金额:$27.0万
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财政年份:1996
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负责人:Jonathan Overpeck
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依托单位:
Interannual to Century-Scale Climate Variability in the Tropical Caribbean/Western Atlantic: Varve-Based Reconstructions from the Anoxic Cariaco Basin
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批准号:9521058
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项目类别:Continuing Grant
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资助金额:$5.39万
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财政年份:1995
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负责人:Jonathan Overpeck
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依托单位:
A PALE Lake Sediment Calibration Network for the Eastern Canadian Arctic
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批准号:9402657
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项目类别:Continuing Grant
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资助金额:$35.03万
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财政年份:1994
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负责人:Jonathan Overpeck
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依托单位:
Eastern Arctic Climate of the Past 2,000 Years: The Varved Lake Sediment Record
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批准号:9300702
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项目类别:Continuing Grant
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资助金额:$17.66万
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财政年份:1993
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负责人:Jonathan Overpeck
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依托单位:
Interannual - to Millennial-scale Environmental Variability as Recorded in the Laminated Sediments of the Carraco Basin,Venezuela
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批准号:9115923
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项目类别:Standard Grant
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资助金额:$2.2万
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财政年份:1992
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负责人:Jonathan Overpeck
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依托单位:
Project ARRCC: Analyis of Rapid and Recent Climate Change
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批准号:9121550
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项目类别:Continuing Grant
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资助金额:$15.2万
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财政年份:1991
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负责人:Jonathan Overpeck
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依托单位:
High-resolution Holocene Climatic Reconstructions from the Eastern Canadian Arctic
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批准号:9296065
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项目类别:Standard Grant
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资助金额:$12.8万
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财政年份:1991
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负责人:Jonathan Overpeck
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依托单位:
High-Resolution Paleoenvironmental Study of the Cariaco Basin, Venezuela: Late Quaternary to Present
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批准号:9296100
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项目类别:Continuing Grant
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资助金额:$9.68万
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财政年份:1991
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负责人:Jonathan Overpeck
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依托单位:
High-Resolution Paleoenvironmental Study of the Cariaco Basin, Venezuela: Late Quaternary to Present
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批准号:8911484
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项目类别:Continuing Grant
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资助金额:$16.36万
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财政年份:1990
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负责人:Jonathan Overpeck
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依托单位:
国内基金
海外基金
水稻边界发育缺陷突变体abnormal boundary development(abd)的基因克隆与功能分析
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批准号:32070202
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项目类别:面上项目
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资助金额:58.0万元
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批准年份:2020
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负责人:汪泉
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依托单位:
Development of a Linear Stochastic Model for Wind Field Reconstruction from Limited Measurement Data
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批准号:--
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项目类别:--
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资助金额:40万元
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批准年份:2020
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负责人:Vikrant Gupta
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依托单位: