Presidential Young Investigators Award - Soil Moisture Dynamics and Droughts

总统青年研究员奖 - 土壤水分动态和干旱

• 批准号: 9158150
• 负责人: Dara Entekhabi
• 金额: $ 0.8万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-15 至 1991-09-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9158150&HistoricalAwards=false
• 关键词: Presidential; Young; Investigators; Award; Soil

This project is supported through the Presidential Young Investigators Award program. The studies conducted during the next five years will concentrate on the development and analysis of the occurrence and duration of droughts using stochastic differential equations to model continental water and heat balance. The statistical distribution of drought durations for several climatic case examples will be developed. The persistent and long-range dependence characteristics for this model will be derived and related to climatic forcing factors. Through the model for hydroclimatology of continental- type climates, the importance of hydrologic land surface-atmosphere interactions in the dynamics of drought will be illustrated. The benefits of this research will be to better understand the stochastic perturbations and year-to-year random variations in large scale atmospheric flow features which occasionally trigger drought conditions that persist and impact human society and the natural environment. With a better understanding mitigation of drought consequences could be achieved.

该项目得到了以下方面的支持： 总统青年 研究者奖计划。 的 在接下来的研究中， 五年将集中精力 的发展与分析 干旱的发生和持续时间 使用随机微分 大陆模型方程 水热平衡 的 干旱统计分布 几种气候情况的持续时间 将开发实例。 的 持久和远程 依赖特性， 模型将被导出并与 气候强迫因素。 通过模型， 大陆水文气候学 气候的重要性， 陆-气水文 动态的相互作用 干旱将被证明。 的 这项研究的好处将是 为了更好地理解 扰动和逐年变化 大尺度随机变化 大气流动特征， 偶尔引发干旱 持续存在并影响 人类社会与自然 环境 以更好的 了解缓解干旱 后果可以实现。