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Summary of Precipitation Data for the Black Hills Area of South Dakota, Water Years 1931-98

Daniel G. DriscollGhaith R. HamadeScott J. Kenner

出版	South dakota school of mines and technology rapid city, 2000
URL	http://books.google.com.hk/books?id=83IbTwEACAAJ&hl=&source=gbs_api

註釋Long-term precipitation records are summarized for the Black Hills area of South Dakota. Precipitation data are available for numerous gaging locations; however, few gages have continuous, long-term records, and periods of missing record are common. Thus, a geographic information system (GIS) utilizing an inverse-distance weighting method was developed to generate spatial precipitation distributions from point precipitation data for the Black Hills area, based on available monthly records. The spatial distributions were used to estimate periods of missing record for all 94 gages considered. The resulting monthly records of measured and estimated precipitation are tabulated for water years 1931-98. Average values for water years 1961-90, which is the period used for calculation of climatic normals, were used to develop an isohyetal map of normal annual precipitation for the Black Hills area.