Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL093482 |
Drought Cascade in the Terrestrial Water Cycle: Evidence from Remote Sensing | |
Alireza Farahmand; JT Reager; Nima Madani | |
2021-06-30 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Droughts are complex phenomena that typically evolve slowly over time. They originate through interactions between the atmosphere and the land surface, but show delayed evolution as they cascade through soil moisture, surface, and groundwater supplies, sometimes resulting in prolonged and insidious impacts on regional hydrological systems. While previous studies have observed this cascade phenomenon at select in situ locations, the temporal characteristics of drought cascades have never been quantitatively estimated at large scales using primarily remote sensing techniques. Here, we use satellite observations of Vapor Pressure Deficit, Precipitation, and Terrestrial Water Storage, and reanalysis-based estimates of column Soil Moisture to characterize cascade phenomena for four major US drought case studies. By mapping the time evolution through this suite of variables, we observe large-scale behavior generally consistent with theory and are able to quantify emergent patterns in the evolution of drought signals that may support improved future predictability. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333914 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Alireza Farahmand,JT Reager,Nima Madani. Drought Cascade in the Terrestrial Water Cycle: Evidence from Remote Sensing[J]. Geophysical Research Letters,2021. |
APA | Alireza Farahmand,JT Reager,&Nima Madani.(2021).Drought Cascade in the Terrestrial Water Cycle: Evidence from Remote Sensing.Geophysical Research Letters. |
MLA | Alireza Farahmand,et al."Drought Cascade in the Terrestrial Water Cycle: Evidence from Remote Sensing".Geophysical Research Letters (2021). |
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