Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2016.04.004 |
Using NDVI to measure precipitation in semi-arid landscapes | |
Birtwistle, Amy N.1; Laituri, Melinda1; Bledsoe, Brian2; Friedman, Jonathan M.3 | |
通讯作者 | Laituri, Melinda |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2016 |
卷号 | 131页码:15-24 |
英文摘要 | Measuring precipitation in semi-arid landscapes is important for understanding the processes related to rainfall and run-off; however, measuring precipitation accurately can often be challenging especially within remote regions where precipitation instruments are scarce. Typically, rain-gauges are sparsely distributed and research comparing rain-gauge and RADAR precipitation estimates reveal that RADAR data are often misleading, especially for monsoon season convective storms. This study investigates an alternative way to map the spatial and temporal variation of precipitation inputs along ephemeral stream channels using Normalized Difference Vegetation Index (NDVI) derived from Landsat Thematic Mapper imagery. NDVI values from 26 years of pre- and post-monsoon season Landsat imagery were derived across Yuma Proving Ground (YPG), a region covering 3,367 km(2) of semiarid landscapes in southwestern Arizona, USA. The change in NDVI from a pre-to post-monsoon season image along ephemeral stream channels explained 73% of the variance in annual monsoonal precipitation totals from a nearby rain gauge. In addition, large seasonal changes in NDVI along channels were useful in determining when and where flow events have occurred. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Normalized Difference Vegetation Index (NDVI) Yuma proving ground Landsat TM Sonoran desert Monsoon season Ephemeral stream channels |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000377732000003 |
WOS关键词 | VEGETATION DYNAMICS ; RIPARIAN VEGETATION ; SOIL-MOISTURE ; RAINFALL ; VARIABILITY ; RESPONSES ; DESERT ; PULSES ; REGION ; TRENDS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | United States Geological Survey ; Colorado State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194137 |
作者单位 | 1.Colorado State Univ, Ecosyst Sci & Sustainabil, Ft Collins, CO 80523 USA; 2.Univ Georgia, Coll Engn, Athens, GA 30602 USA; 3.US Geol Survey, 2150 Ctr Ave,Bldg C, Ft Collins, CO 80526 USA |
推荐引用方式 GB/T 7714 | Birtwistle, Amy N.,Laituri, Melinda,Bledsoe, Brian,et al. Using NDVI to measure precipitation in semi-arid landscapes[J]. United States Geological Survey, Colorado State University,2016,131:15-24. |
APA | Birtwistle, Amy N.,Laituri, Melinda,Bledsoe, Brian,&Friedman, Jonathan M..(2016).Using NDVI to measure precipitation in semi-arid landscapes.JOURNAL OF ARID ENVIRONMENTS,131,15-24. |
MLA | Birtwistle, Amy N.,et al."Using NDVI to measure precipitation in semi-arid landscapes".JOURNAL OF ARID ENVIRONMENTS 131(2016):15-24. |
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