沂沭河流域气温变化的时空特征  

Analysis on the Temperature Distribution in Yi-Shu River Basin

作　　者：丁召静[1,2] 申洪源[1] 贾玉芳[1,2] 

机构地区：[1]临沂师范学院化学与资源环境学院,山东临沂276005 [2]山东师范大学人口.资源与环境学院,山东济南250014

出　　处：《临沂师范学院学报》2010年第6期86-90,共5页Journal of Linyi Teachers' College

基　　金：国家自然科学基金(41072138);山东省自然科学基金(ZR2010DM002);临沂师范学院博士科研基金(BS07007)项目资助

摘　　要：基于ArcGIS软件技术,利用栅格计算器将截取的1961-1998年沂沭河流域年平均气温栅格数据分成四个时段加以计算,求得20世纪60-90年代沂沭河流域气温时空分布情况,并利用3D Analyst中的Create Profile Graph工具获取研究区在纬线与经线方向上的地表高程变化及其对应的多年平均气温变化曲线图.结果表明:研究区气温空间分布特点是南部高于北部,西部高于东部,平原高于山区和丘陵.20世纪60-80年代,气温略有变化,而90年代平均气温较80年代上升1℃左右,这种异常变化可能与全球性大气环流变化有一定联系.On the foundation of ArcGIS,the annual mean temperature raster data of Yi-Shu river basin from 1961 to 1998,which is extracted from Chinese 1 km^2 annual average temperature raster data,is calculated to obtain Yi-Shu River Basin＇s temperature space and time distribution by using the grid calculator.With the tool of Create Profile Graph in 3D Analyst,the surface elevation change and the corresponding multi-annual average temperature changing diagram of curves in latitude parallel and warp direction of the research area are obtained.It is observed that the research area temperature distributed characteristic is：the south is higher than the north,the east is higher than the west,and the plain is higher than the mountainous and hill area.The average temperature changes a little from 1960s to 1980s,but represents sharpest rise in the 1990s about 1℃.This anomaly may be related to the changes in global atmospheric circulation.

关 键 词：沂沭河流域 气温变化 时空分布 

分 类 号：P423.3[天文地球—大气科学及气象学]