干旱区生态环境知识资源中心(Arid): Identifying Precipitation and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance

Arid

DOI	10.3390/rs12152432
	Identifying Precipitation and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance
	Blakeley, S. Lucille; Sweeney, Stuart; Husak, Gregory; Harrison, Laura; Funk, Chris; Peterson, Pete; Osgood, Daniel E.
通讯作者	Blakeley, SL
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:15
英文摘要	West Africa represents a wide gradient of climates, extending from tropical conditions along the Guinea Coast to the dry deserts of the south Sahara, and it has some of the lowest income, most vulnerable populations on the planet, which increases catastrophic impacts of low and high frequency climate variability. This paper investigates low and high frequency climate variability in West African monthly and seasonal precipitation and reference evapotranspiration from the early 1980s to 2016. We examine the impact of those trends and how they interact with payouts from index insurance products. Understanding low and high frequency variability in precipitation and reference evapotranspiration at these scales can provide insight into trends during periods critical to agricultural performance across the region. For index insurance, it is important to identify low-frequency variability, which can result in radical departures between designed/planned and actual insurance payouts, especially in the later part of a 30-year period, a common climate analysis period. We find that evaporative demand and precipitation are not perfect substitutes for monitoring crop deficits and that there may be space to use both for index insurance design. We also show that low yields-aligned with the need for insurance payouts-can be predicted using classification trees that include both precipitation and reference evapotranspiration.
英文关键词	West Africa climate variability precipitation evapotranspiration index insurance
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000567320400001
WOS关键词	RISK-MANAGEMENT ; INDEX INSURANCE ; SAHEL RAINFALL ; ACCURACY ; DEMAND ; NDVI
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
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326134
作者单位	[Blakeley, S. Lucille; Sweeney, Stuart; Husak, Gregory; Harrison, Laura; Peterson, Pete] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA; [Funk, Chris] US Geol Survey, Earth Resources Observat & Sci Ctr, 47914 252nd St, Sioux Falls, SD 57198 USA; [Osgood, Daniel E.] Columbia Univ, Int Res Inst Climate & Soc, Palisades, NY 10964 USA
推荐引用方式 GB/T 7714	Blakeley, S. Lucille,Sweeney, Stuart,Husak, Gregory,et al. Identifying Precipitation and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance[J]. United States Geological Survey,2020,12(15).
APA	Blakeley, S. Lucille.,Sweeney, Stuart.,Husak, Gregory.,Harrison, Laura.,Funk, Chris.,...&Osgood, Daniel E..(2020).Identifying Precipitation and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance.REMOTE SENSING,12(15).
MLA	Blakeley, S. Lucille,et al."Identifying Precipitation and Reference Evapotranspiration Trends in West Africa to Support Drought Insurance".REMOTE SENSING 12.15(2020).