| 项目编号: | 1419445
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| 项目名称: | EaSM-3: Land Use Change and Land Atmosphere Feedback Processes as Regulators of Regional Climate Change |
| 作者: | Paul Dirmeyer
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| 承担单位: | George Mason University
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| 批准年: | 2013
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| 开始日期: | 2014-08-01
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| 结束日期: | 2018-07-31
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| 资助金额: | USD779965
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | land-atmosphere
; future land use change
; land use land cover change
; strong land-atmosphere feedback
; land surface
; climate
; community land model
; land use practice
; regional land use practice
; land-atmosphere interaction
; land use
; land cover
; climate change
; study
; regional level
; climate variability
; climate variation
; community atmosphere model
; physical climate system
; impact climate
; warming climate
; climate impact
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| 英文摘要: | Changes in land use and land cover, such as converting forests to cropland or irrigating formerly dry areas, are known to impact climate on the local and regional level. There is some indication from prior modeling studies that the land-atmosphere interactions that cause these climate impacts will become more pronounced in a warming world. In order to further study this concept, researchers will perform simulations using advanced numerical models and compare those results to observational data to assess how the models are performing. This study will impact society by providing better information to policymakers about the impact of future land use changes. The project would also provide an opportunity to train the next generation of scientists through the inclusion of a graduate student and a postdoctoral researcher in the study.
The researchers hypothesize that the rate of climate change, frequency and severity of extremes, and predictability of climate variations will depend on the type of regional land use practices implemented in the coming decades. While the study of land use land cover change (LULCC) impacts on climate are not new, this project is starting from a point where the model consensus is that there will be a strengthened coupling between land and atmosphere in a warming climate. This result would mean that climate may become more sensitive to both natural and anthropogenic variations at the land surface. Two main hypotheses will be addressed: 1) Regions of strong land-atmosphere feedback in the physical climate system will evolve significantly in a changing climate, and 2) regionally, the rate of climate change, the frequency and severity of extremes, and the predictability of climate variability will be dependent on the type of land use practices implemented in the coming decades. To address these hypotheses, the PIs plan to use the Community Earth System Model (CESM) with a focus on the Community Land Model (CLM) and Community Atmosphere Model (CAM). A variety of observational data would be used to validate the models. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96217
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Paul Dirmeyer. EaSM-3: Land Use Change and Land Atmosphere Feedback Processes as Regulators of Regional Climate Change. 2013-01-01.
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