干旱区生态环境知识资源中心(Arid): Mapping Flash Flood Hazards in Arid Regions Using CubeSats

Arid

DOI	10.3390/rs14174218
	Mapping Flash Flood Hazards in Arid Regions Using CubeSats
	Wang, Zhaocheng; Vivoni, Enrique R.
通讯作者	Vivoni, ER
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:17
英文摘要	Flash flooding affects a growing number of people and causes billions of dollars in losses each year with the impact often falling disproportionally on underdeveloped regions. To inform post-flood mitigation efforts, it is crucial to determine flash flooding extents, especially for extreme events. Unfortunately, flood hazard mapping has often been limited by a lack of observations with both high spatial and temporal resolution. The CubeSat constellation operated by Planet Labs can fill this key gap in Earth observations by providing 3 m near-daily multispectral imagery at the global scale. In this study, we demonstrate the imaging capabilities of CubeSats for mapping flash flood hazards in arid regions. We selected a severe storm on 13-14 August 2021 that swept through the town of Gila Bend, Arizona, causing severe flood damages, two deaths, and the Declaration of a State of Emergency. We found the spatial extent of flooding can be mapped from CubeSat imagery through comparisons of the near-infrared surface reflectance prior to and after the flash flood event (Delta NIR). The unprecedented spatiotemporal resolution of CubeSat imagery allowed the detection of ponded (Delta NIR <= -0.05) and flood-affected (Delta NIR >= +0.02) areas that compared remarkably well with the 100-year flood event extent obtained by an independent hydraulic modeling study. Our findings demonstrate that CubeSat imagery provides valuable spatial details on flood hazards and can support post-flood activities such as damage assessments and emergency relief.
英文关键词	small satellites hydrometeorology urban flooding drylands monsoon near-infrared
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000852002900001
WOS关键词	CENTRAL ARIZONA ; PRECIPITATION ; DYNAMICS ; PATTERNS ; EVENTS ; SYSTEM ; SCALE
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394193
推荐引用方式 GB/T 7714	Wang, Zhaocheng,Vivoni, Enrique R.. Mapping Flash Flood Hazards in Arid Regions Using CubeSats[J],2022,14(17).
APA	Wang, Zhaocheng,&Vivoni, Enrique R..(2022).Mapping Flash Flood Hazards in Arid Regions Using CubeSats.REMOTE SENSING,14(17).
MLA	Wang, Zhaocheng,et al."Mapping Flash Flood Hazards in Arid Regions Using CubeSats".REMOTE SENSING 14.17(2022).