| 项目编号: | 1352046
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| 项目名称: | CAREER: Research on Weather and Climate Impacts of Land Use and Land Cover (LULC) Change--Supporting Technology-Driven Science Inquiry as Pedagogy |
| 作者: | Udaysankar Nair
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| 承担单位: | University of Alabama in Huntsville
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| 批准年: | 2013
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| 开始日期: | 2014-05-01
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| 结束日期: | 2019-04-30
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| 资助金额: | USD748271
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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: | lulc change
; island setting
; research
; land area
; land-atmosphere interaction
; land use
; small island
; weather
; island geometry
; land cover
; crop land
; maritime continent
; atmospheric science
; impact
; tropical climate
; climate
; effect large scale climate trend
; discovery engine
; research activity
; substantial impact
; research creativity
; atmospheric dynamics
; deforestation
; climate change mitigation
; inductive pedagogy
; climate impact
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| 英文摘要: | The impacts of Land Use and Land Cover (LULC) change on weather and climate are expected to vary depending upon the island geometry (size, aspect ratio and shoreline shape) and terrain. A conceptual understanding of such variations will be established though idealized numerical modeling experiments (NME). The concept developed will be used to analyze more realistic NME, investigating the weather and climate impacts of observed LULC changes (2000-2010) in the maritime continent, which exerts an important influence on tropical climate. Educational aspects of this project is the integration of Polaris, a discovery engine designed for operating on big data, with NME outputs generated from the Principal Investigator's (PI) research (past, ongoing and future) to transition from a deductive to inductive methodology for teaching of graduate level courses in Atmospheric Dynamics.
Intellectual Merit :
LULC change can have a substantial impact on weather and climate, but varies in complex fashion depending upon geographical setting, especially terrain and continentality. A conceptual framework for understanding the geographic variability is gradually emerging from prior studies, including those of the PI. The research activities will lead to an important addition to this framework, namely the impact LULC change in the context of island settings, and improved understanding of the effect of deforestation in the maritime continent. Note that the influence of the maritime continent on tropical climate is disproportionate to its land area, contributing to 40% of latent heating in the global tropics (~twice compared to continental convection). A large portion occurs in the vicinity of small islands as sea breeze initiated convection and is potentially impacted by LULC changes. Thus the proposed research is relevant and important, especially in the context of the IPCC determination that radiative forcing caused by land-atmosphere interactions is not well quantified, and is one of the key uncertainties. Whereas tools for big data analysis are becoming more common in field of Atmospheric Science, incorporation of this capability in classroom settings is lacking. Analysis of large datasets to establish relationship between atmospheric variables relevant to a phenomenon, and inferring the nature of theoretical framework needed to analyze it is an effective method for teaching of Atmospheric Dynamics. Learning in such an inductive setting mimics the natural development of the field. However, the pedagogy required for this purpose is also lacking. The PI addresses these critical gaps through integration of his research and educational activities.
Broader Impacts :
The LULC change impacts could be exacerbating or mitigating the effects large scale climate trends in the maritime continent. For some island settings, deforestation could lead to decrease in rainfall over agricultural regions and thus the concern that increase in productivity gained from expanding the crop lands may be negated by reduced rainfall caused by deforestation. Thus the results from this study have the potential to inform and lead to better policy formulation regarding climate change mitigation and sustainable environmental management. Atmospheric dynamics is often a very difficult course for students in atmospheric science. The teaching method developed via this award has the potential to transition students from mimicry to mastery, improving research creativity and retention in graduate programs. The proposed educational portal will document and share the big data supported inductive pedagogy with a wider community, allowing continued evolution from other educators and students. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96934
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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: | |
Udaysankar Nair. CAREER: Research on Weather and Climate Impacts of Land Use and Land Cover (LULC) Change--Supporting Technology-Driven Science Inquiry as Pedagogy. 2013-01-01.
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