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.
基于GIS的大兴安岭中段东南坡降水量空间插值分析
- Title:
- Spatial Interpolation Analysis on Precipitation of Southeast Slope of the Greater Hinggan Mountains Based on GIS Technology
- Keywords:
- precipitation; model; spatial interpolation; GIS
- 分类号:
- P426.613;TP79
- 摘要:
- 采用大兴安岭中段东南坡即内蒙古兴安盟及其周边地区共计26个气象观测站资料，应用半经验半理论回归模拟方法，建立了内蒙古兴安盟地区18个降水量空间分布模型，模型全部通过0.05显著性检验。在此基础上，应用GIS技术和1∶25万地理信息数据，将兴安盟地区降水量插值到3″×3″的网格点上。结果表明：兴安盟地区年降水量自东南向西北逐渐递增，年降水量随经度的增加而递减，递减率为24.7mm/1°E；随纬度的增加而递增，递增率为37.6mm/1°N；随海拔高度的增加而递减，递减率为6.4mm/100m。研究结果为更好地满足当地农牧林业生产、工业基地布局等合理开发利用水资源提供科学依据。
- Abstract:
- 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.
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备注/Memo
收稿日期:2010-5-11
基金项目:国家科技支撑计划子专题（2007BAC03A02-3）；内蒙古气象局科研项目（200513）
作者简介:唐红艳（1966- ），女，辽宁建平县人，高级工程师，主要从事农业气象、气候对环境的影响研究E-mail：wsyythy@sohu.com