文章基本信息

标题：Analyzing Wetness and Dryness Severity in Bangladesh: Using Standardized Precipitation Index (SPI) in GIS Environment
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作者：NMR Nasher ; MN Uddin
期刊名称：Journal of Environmental Science and Natural Resources
印刷版ISSN：2408-8633
出版年度：2014
卷号：7
期号：2
页码：127-131
DOI：10.3329/jesnr.v7i2.22220
语种：English
出版社：Bangladesh Society for Conservation of Environment and Natural Resources
摘要：Daily precipitation data of 33 stations were analyzed to know the Standardized Precipitation Index (SPI). Both spatial and temporal SPI were analyzed. Inverse Distance Weighting (IDW) technique was used to map the spatial SPI with a decadal change. From 1983 to 2013, four maps showed the decadal changes of SPI over Bangladesh. 1993 was a dry year in the regarding time period. Station based trends were analyzed for Dhaka, Srimongol, Khulna, Cox’s bazaar and Rangpur as preventative for five regions in Bangladesh. Dryness is increasing over Northern and Central regions whereas wetness is increasing over Southwestern, Northern and eastern region in Bangladesh.DOI: http://dx.doi.org/10.3329/jesnr.v7i2.22220 Environ. Sci. & Natural Resources, 7(2): 127-131 2014
关键词：Geography and Environment; Environmental Sciences and Resources Management;Dryness; GIS; Standardized Precipitation Index; Spatial analysis; Wetness