Changes in the Frequency of Extreme Warm Season Surface Dewpoints in the Midwestern U.S.: Implications for Weather-Related Hazards
美国中西部极端暖季地表露点频率的变化:对天气相关灾害的影响
基本信息
- 批准号:0351302
- 负责人:
- 金额:$ 10万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-03-01 至 2007-02-28
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Land - atmosphere interactions in the Upper Midwest have been largely ignored even though it is a major agricultural region (i.e. corn and soybean) and is an area that experiences dangerous heat waves and frequent warm season thunderstorm development. Modeling studies suggest that land - atmosphere interactions in mid-continental locations are important for global induced climate changes and that even subtle land use changes may have important impacts on the occurrence of climate extremes. This study will develop a multi-decadal extreme dew point climatology, determine the temporal and spatial distribution of surface atmospheric moisture, and identify regions favorable to moisture pooling in the Upper Midwest. This will be achieved by integrating ground-based observations, high-resolution satellite data, and geographic information systems. These data and tools will allow the investigators to determine the role of land cover, vegetation (including agriculture), and topography in enhancing the spatial and temporal distributions of low-level atmospheric moisture. Determining the spatial distribution of low-level atmospheric moisture and its source regions during the warm season will forward our understanding of patterns conducive to the development of thunderstorms and dangerous heat waves in the Upper Midwest. By detailing and mapping the evolution of warm season extreme dew point events, we will provide tools to forecasters and other researchers in mitigating the hazards associated with heat waves/heat stress conditions, derechos, and the combination of urban heat and high humidities. We will also inform emergency service agencies and the public of detailed regional risks associated with extreme dew point events.
上中西部地区的陆地-大气相互作用在很大程度上被忽视了,尽管它是一个主要的农业区(即玉米和大豆),并且是一个经历危险热浪和频繁的暖季雷暴发展的地区。模拟研究表明,大陆中部地区的陆地-大气相互作用对全球诱发的气候变化很重要,即使是细微的土地利用变化也可能对极端气候的发生产生重要影响。本研究将建立一个多年代际的极端露点气候学,确定地表大气湿度的时空分布,并确定中西部上游有利于水汽汇集的区域。这将通过整合地面观测、高分辨率卫星数据和地理信息系统来实现。这些数据和工具将使研究人员能够确定土地覆盖、植被(包括农业)和地形在增强低层大气湿度的时空分布方面的作用。确定暖季低空大气湿度及其源区的空间分布将有助于我们理解有利于中西部北部雷暴和危险热浪发展的模式。通过详细描绘暖季极端露点事件的演变,我们将为预报员和其他研究人员提供工具,以减轻与热浪/热应激条件、回波以及城市高温和高湿度相结合的危害。我们还将向紧急服务机构和公众详细通报与极端露点事件有关的区域风险。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
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专利数量(0)
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Mace Bentley其他文献
The Impact of Urban Particulate Matter on Lightning Frequency in Thunderstorms: A Case Study of the Bangkok Metropolitan Region
- DOI:
10.1007/s41748-024-00474-1 - 发表时间:
2024-09-26 - 期刊:
- 影响因子:4.700
- 作者:
Jojinda Sae-Jung;Mace Bentley;Tobias Gerken;Zhuojun Duan - 通讯作者:
Zhuojun Duan
Mace Bentley的其他文献
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{{ truncateString('Mace Bentley', 18)}}的其他基金
RUI: Characterization of Aerosol Effects within an Urban Lightning Climatology across a North American Climatic Gradient
RUI:北美气候梯度城市闪电气候学中气溶胶效应的表征
- 批准号:
2104299 - 财政年份:2021
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
Collaborative Research: Climatological and Event-Based Radar Delineation of UHI Convection for Urban Corridors Within the Southeastern U.S.
合作研究:美国东南部城市走廊城市热岛对流的气候学和基于事件的雷达描绘
- 批准号:
0649343 - 财政年份:2007
- 资助金额:
$ 10万 - 项目类别:
Continuing Grant
Collaborative Research: Complex Controls on the Distribution of Lightning Characteristics and Property Damage in an Urbanized Region
合作研究:城市化地区雷电特征分布和财产损失的复杂控制
- 批准号:
0241286 - 财政年份:2003
- 资助金额:
$ 10万 - 项目类别:
Continuing Grant
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