| 项目编号: | 1447533
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| 项目名称: | CAREER: Advancing the science and education of land surface-atmosphere interactions: Interweaving multiscale experimental and modeling approaches for Land Surface Models |
| 作者: | Kathleen Smits
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| 承担单位: | Colorado School of Mines
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| 批准年: | 2014
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| 开始日期: | 2015-03-01
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| 结束日期: | 2020-08-31
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| 资助金额: | USD545474
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| 资助来源: | US-NSF
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| 项目类别: | Continuing 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 - Earth Sciences
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| 英文关键词: | land-atmosphere
; modeling
; lsm
; multiple land-atmosphere interaction
; land-atmosphere feedback
; soil-land-atmosphere interface
; land-atmosphere interface
; land surface-atmosphere interaction
; career
; education
; research
; land surface model
; science
; modeling approach
; mass
; important interaction
; representation
; shallow subsurface
; fine scale computational model
; process
; soil surface
; surface soil
; subsurface process
; different surface flux
; laboratory
; computational model
; thermal flux process interaction
; educational framework
; model performance
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| 英文摘要: | CAREER: Advancing the science and education of land surface-atmosphere interactions: Interweaving multiscale experimental and modeling approaches for
Land Surface Models and experiential learning
A critical challenge for Land Surface Models (LSMs) is to simulate processes at the surface and the subsurface and their feedbacks to the atmosphere. Even given the same climate forcings, LSMs predict different surface fluxes and soil moisture conditions. This is due to differences in the formulations of individual processes, parameterizations of those formulations, numerical solution methods and representation of spatial heterogeneity. All of these differences contribute to LSM prediction errors and uncertainty. Increasing confidence in climate predictions requires revisiting fundamental process understanding and using that understanding to improve representations of land-atmosphere feedbacks. This research seeks to address this challenge by answering questions on multiphase fluid transport mechanisms in surface soils and mass/energy exchange at the soil-atmosphere interface. New knowledge and modeling approaches will result in improved predictions for water supply and food security as well as environmental issues across the nation. Linked to the research plan is an educational framework for engaging minority middle school students in Science, Technology, Engineering and Mathematics (STEM). Focusing on the integrating theme of water and climate, the investigator will help students make the link between STEM they learn in the classroom and environmental water resource problems in their own backyards, motivating and preparing students to pursue college studies and ultimately careers in STEM fields. The integrated activities will help to build a scientifically literate and informed citizenry, while also answering critical water and climate questions. This project will contribute substantially to the goals of the NSF in the production of interdisciplinary knowledge and the education of middle-school students, young scientists and engineers.
The overarching goal of this research is to advance our understanding and modeling of mass and energy exchange at the land-atmosphere interface over a wide range of scales, and ultimately improve LSMs that are utilized in global climate prediction. The proposed research will systematically explore how the shallow subsurface and the atmosphere, specifically the layer very close to the soil surface, interact, providing new insights into mass and thermal flux process interactions that will be integrated into LSMs. A focus on scaling based on process understanding at multiple scales will allow for process-rich parameterizations for multiple land-atmosphere interaction and subsurface processes that contribute to LSMs. This vision includes unique highly controlled mechanistic studies in the laboratory, leveraging of existing laboratory and field data, modeling of critical mass and energy dynamics, and the characterization of important interactions from the laboratory to the watershed scales that drive feedbacks to climate systems. Project results will yield unique, high-fidelity data that will greatly aid in improving our understanding and modeling of the processes affected by heterogeneity at various scales and the development of methods to mechanistically represent the proposed processes at the watershed scale. A suite of climate intermediate, and fine scale computational models will be used to guide observations and interpret data; process studies will provide new algorithms and process parameterizations and evaluate model performance. Computational models in conjunction with experimental data will enable the investigator to understand governing flow and transport mechanisms under different atmospheric forcing at different scales. This research is expected to improve the representation of mass and energy exchange processes across multiple scales at the soil-land-atmosphere interface. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95024
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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: | |
Kathleen Smits. CAREER: Advancing the science and education of land surface-atmosphere interactions: Interweaving multiscale experimental and modeling approaches for Land Surface Models. 2014-01-01.
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