基于GIS的甘肃省气温空间分布模式研究  

Method of spatial interpolation of air temperature based on GIS in Gansu Province

作　　者：方书敏[1] 秦将为[1] 李永飞[1] 杨太保[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000

出　　处：《兰州大学学报（自然科学版）》2005年第2期6-9,共4页Journal of Lanzhou University(Natural Sciences)

摘　　要：采用地理信息系统软件Arc/Info提供的空间插值方法,研究了甘肃省气温的空间变化规律,结果表明:甘肃省冬季(1月份)气温较同纬度地区偏低,气温的空间分布在地区分布上呈现出由东南向西北随纬度增加而逐渐降低的地域分异州律;夏季(7月份)气温较同纬度地区偏高,绝大部分地区高于20℃.经检验,用反距离加权法(IDW)模拟气温的空间分布具有很高的精度.Based on the spatial interpolation technique served by GIS, this paper studied the spatial distribution of air temperature in Gansu Province. The result shows that the temperature is lower in winter (January) than the same latitude areas, and it decreased with increasing latitude from southeast to northwest gradely. While in summer (July) the temperature is the same or higher than that of the same latitude areas and in most areas it is higher than 20℃. After calibrating, we found that the method of spatial interpolation of temperature based on IDW interpolation model was more efficient .

关 键 词：气温 地理信息系统 空间插值 甘肃 

分 类 号：P468[天文地球—大气科学及气象学]