Collaborative Research: Testing Hypotheses About Fire Using Data Syntheses and Fire Modeling
协作研究:使用数据合成和火灾建模检验有关火灾的假设
基本信息
- 批准号:1435744
- 负责人:
- 金额:$ 2.74万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-09-01 至 2020-02-29
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This research project will investigate how changes in environmental and human activities have influenced fires over time, using a combination of datasets that describe past and present variations in fire. The project also will develop a global fire model to help test hypotheses about the roles that environmental factors and humans have played in controlling the location, size, and frequency of fires at regional-to-global scales. The project will provide new information and insights about relationships among fire, climate and other environmental factors, and human activities. The project will contribute to broader scientific advances in knowledge regarding Earth system processes, and the project will enhance the quality of Earth system models that now are incorporating fire in simulations of the global environment. Knowledge of the ways that human activity, climate, and other environmental factors have affected fires in the past at both regional and global scales is critical to understanding how fires will behave in the future. Given the threats that fires pose for humans and the critical role that fires play in the functioning of many ecosystems, increased awareness of the dynamics of fire behavior has considerable practical utility. Project findings will facilitate enable improved representations of the processes that control fire in models across a variety of climate and land-use conditions, thereby informing decisions about natural resource and fire management efforts. The project will provide education and training opportunities for graduate students, and it will assist in the development of curricular materials dealing with the interactions among fire, natural systems, and human activities for use in elementary and secondary schools.This project will use satellite-based reconstructions of fire activity to validate modern-day simulations, and it will advance collection of data to study the factors that have influenced the dynamics and impact of fire in the past. The investigators will combine information from a still-expanding global database of fire over the last millennium with the outputs from global fire modeling. Past fire activity will be estimated from charcoal particles in lake sediments at a given depth as well as the time when the charcoal was deposited as determined through the use of radiocarbon dating. The charcoal records will be used to reconstruct past levels of fire activity under a range of climate and land-use conditions, and the reconstructions will be compared with various simulations of past global fire activity. Combining past and present datasets with model simulations of past climate will provide a more rigorous basis for understanding the specific processes that produce reconstructed and observed changes in fire activity than modern-day (satellite) datasets alone.
这项研究项目将使用描述过去和现在火灾变化的数据集的组合,调查环境和人类活动的变化如何随着时间的推移影响火灾。该项目还将开发一个全球火灾模型,以帮助测试有关环境因素和人类在区域到全球范围内控制火灾位置、大小和频率方面所起作用的假设。该项目将提供关于火、气候和其他环境因素以及人类活动之间关系的新信息和见解。该项目将有助于在有关地球系统过程的知识方面取得更广泛的科学进步,并且该项目将提高地球系统模型的质量,这些模型目前正在将火纳入全球环境的模拟。了解人类活动、气候和其他环境因素过去在区域和全球范围内影响火灾的方式,对于了解未来火灾的行为至关重要。鉴于火灾对人类构成的威胁,以及火灾在许多生态系统的运行中发挥的关键作用,提高对火灾行为动态的认识具有相当大的实用价值。项目结果将有助于在各种气候和土地利用条件下改进模型中控制火灾的过程的表述,从而为有关自然资源和火灾管理工作的决策提供信息。该项目将为研究生提供教育和培训机会,并将帮助开发中小学使用的涉及火灾、自然系统和人类活动之间相互作用的课程材料。该项目将使用基于卫星的火灾活动重建来验证现代模拟,并将推进数据收集,以研究过去影响火灾动态和影响的因素。调查人员将把过去一千年仍在扩大的全球火灾数据库的信息与全球火灾模型的输出结合起来。过去的火灾活动将根据给定深度的湖泊沉积物中的木炭颗粒以及通过使用放射性碳测年确定的木炭沉积时间来估计。木炭记录将被用来重建一系列气候和土地使用条件下过去的火灾活动水平,并将重建的数据与过去全球火灾活动的各种模拟进行比较。将过去和现在的数据集与过去气候的模型模拟结合起来,将为理解产生重建和观察到的火灾活动变化的具体过程提供比单独使用现代(卫星)数据集更严格的基础。
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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Patrick Bartlein其他文献
Patrick Bartlein的其他文献
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{{ truncateString('Patrick Bartlein', 18)}}的其他基金
Doctoral Dissertation Research: A Hierarchical Modeling Approach to Simulating the Geomorphic Response of River Systems to Environmental Change
博士论文研究:模拟河流系统地貌对环境变化响应的分层建模方法
- 批准号:
1233056 - 财政年份:2012
- 资助金额:
$ 2.74万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Global Fire Since the Last Glacial Maximum
博士论文研究:末次盛冰期以来的全球火灾
- 批准号:
0727424 - 财政年份:2007
- 资助金额:
$ 2.74万 - 项目类别:
Standard Grant
Collaborative Research: Holocene Fire-Climate Linkages In Southern South America: Explaining Regional Responses To Large-scale Climate Forcing
合作研究:南美洲南部全新世火灾与气候的联系:解释对大规模气候强迫的区域反应
- 批准号:
0714146 - 财政年份:2007
- 资助金额:
$ 2.74万 - 项目类别:
Standard Grant
Collaborative Research: Project PALEOVAR -- Past Climate Variability: Understanding Mechanisms and Interactions with the Mean State
合作研究: PALEOVAR 项目——过去的气候变率:了解机制以及与平均状态的相互作用
- 批准号:
0602409 - 财政年份:2006
- 资助金额:
$ 2.74万 - 项目类别:
Continuing Grant
Doctoral Dissertation Research: Visualizing Mechanistic Controls of North American Climate Variability Through Cartographic Animation
博士论文研究:通过制图动画可视化北美气候变化的机械控制
- 批准号:
0220976 - 财政年份:2002
- 资助金额:
$ 2.74万 - 项目类别:
Standard Grant
Holocene Fire-Climate-Vegetation Linkages in the Western Mid-latitude Forests of North and South America
北美和南美西部中纬度森林的全新世火灾-气候-植被联系
- 批准号:
0117160 - 财政年份:2001
- 资助金额:
$ 2.74万 - 项目类别:
Standard Grant
Collaborative Research: Land-Atmosphere Interactions in Beringia Over the Last 21,000 Years: An Investigation of Climate Feedback Using the Arctic Regional Climate System Model
合作研究:过去 21,000 年白令海峡陆地-大气相互作用:利用北极区域气候系统模型研究气候反馈
- 批准号:
0001643 - 财政年份:2000
- 资助金额:
$ 2.74万 - 项目类别:
Continuing Grant
Collaborative Research: Testing Earth System Models with Paleoenivironmental Observations (TEMPO)
合作研究:利用古环境观测测试地球系统模型(TEMPO)
- 批准号:
9910638 - 财政年份:1999
- 资助金额:
$ 2.74万 - 项目类别:
Continuing Grant
Collaborative Research: Late Quaternary Climate of Northeast Asia: Temporal and Spatial Variability
合作研究:东北亚晚第四纪气候:时空变化
- 批准号:
9816317 - 财政年份:1998
- 资助金额:
$ 2.74万 - 项目类别:
Continuing Grant
Quaternary Paleoclimatic Variations of Beringia: Large-scale Controls and Regional Responses
白令海峡第四纪古气候变化:大规模控制和区域响应
- 批准号:
9532074 - 财政年份:1996
- 资助金额:
$ 2.74万 - 项目类别:
Continuing Grant
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