[1]TANG Hong-yan,NIU Bao-liang.Spatial Interpolation Analysis on Precipitation of Southeast Slope of the Greater Hinggan Mountains Based on GIS Technology[J].Research of Soil and Water Conservation,2010,17(06):198-201,206.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 06
Page number:
198-201,206
Column:
Public date:
2010-12-20
- Title:
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Spatial Interpolation Analysis on Precipitation of Southeast Slope of the Greater Hinggan Mountains Based on GIS Technology
- Author(s):
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TANG Hong-yan, NIU Bao-liang
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Xing’an League Meteorological Bureau Inner Mongolia, Wulanhaote, Inner Mongolia 137400, China
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- Keywords:
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precipitation; model; spatial interpolation; GIS
- CLC:
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P426.613;TP79
- DOI:
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- Abstract:
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Using 26 meteorological observatory data from Xing’an league Inner Mongolia and its surrounding areas which located in the southeast slope of the Greater Hinggan Mountains, semi-theoretical and semi-empirical regression simulation of climatic resources was used to establish 18 models of spatial distribution characteristics of precipitation of Xing’an league Inner Mongolia. All the 18 models pass statistical test at the significant level. On this basis, using GIS technology and 1:250 000 digital map, the authors interpolated precipitation of Xing’an league Inner Mongolia to the 3"×3" grid. The results show that annual precipitation are gradually increasing from southeast to northwest. Annual precipitation reduces with increase of longitude by 24.7 mm/1°E and increases with increase of latitude by 37.6 mm/1°N and reduces with increase of height above sea level by 6.4 mm/100 m.The results provide scientific basis for rational utilization of water resources to meet agricultural production and distribution of industrial base.