G2TT
来源类型Peer Reviewed
规范类型其他
Spatial and temporal assessment of drought in the Northern highlands of Ethiopia
Gebreheiwot, Tagel; Other authors; van der Veen , Anne; Maathuis, Ben
发表日期2017-03-24
出版年2017
语种英语
摘要

Gebreheiwot, Tagel, Anne van der Veen and Ben Maathuis. 2011. “International Journal of Applied Earth Observation and Geoinformation.” Science Direct 13:3: 309-321.
Download reference

With the development of global changes, researchers from all over the world increasingly pay attention to drought detection, and severe droughts that may have resulted from climate change. In this paper, spatial and temporal variability of drought is evaluated based on precipitation data and remotely sensed images. The standard precipitation index (SPI) and vegetation condition index (VCI) are used to evaluate the spatial and temporal characteristics of meteorological and vegetative drought in Tigray, Northern Ethiopia. Based on the drought critical values of SPI and VCI defining drought, the spatial and temporal extent of droughts in the study area is established. We processed 396 decadal images in order to produce the multi-temporal VCI drought maps. The results of the SPI and VCI analysis reveal that the eastern and southern zones of the study region suffered a recurrent cycle of drought over the last decade. Results further show that there is a time lag between the period of the peak VCI and precipitation values obtained from the meteorological stations across the study area. A significant agreement was observed between VCI values with the current plus last two-months of precipitation. The study demonstrates the utility of the vegetation condition index in semi-arid and arid regions

主题Agriculture
URLhttps://efdinitiative.org/publications/spatial-and-temporal-assessment-drought-northern-highlands-ethiopia
来源智库Environment for Development Initiative (Sweden)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/138369
推荐引用方式
GB/T 7714
Gebreheiwot, Tagel,Other authors,van der Veen , Anne,et al. Spatial and temporal assessment of drought in the Northern highlands of Ethiopia. 2017.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gebreheiwot, Tagel]的文章
[Other authors]的文章
[van der Veen , Anne]的文章
百度学术
百度学术中相似的文章
[Gebreheiwot, Tagel]的文章
[Other authors]的文章
[van der Veen , Anne]的文章
必应学术
必应学术中相似的文章
[Gebreheiwot, Tagel]的文章
[Other authors]的文章
[van der Veen , Anne]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。