南京信息工程大学学报2016，Vol.8Issue(4)：343-364,22.DOI:10.13878/j.cnki.jnuist.2016.04.008
三维插值方法在2m温度评估中的应用
Spatial and temporal characteristics of precipitation in Shijiazhuang during 1961-2014
摘要
Abstract
Based on daily precipitation data of five representative meteorological stations in Shijiazhuang area during 1961-2014,the spatial and temporal change characteristics of precipitation were analyzed by using a variety of statistical methods.Results show that annual precipitation in Shijiazhuang area begins to fall from the 1970s and reaches the lowest in the 1980s,then increases slightly in the 1990s,and begins to decline in the 21st century.The precipitation reduction in the 1970s is mainly due to the rainfall decrease in spring and autumn,while the decrease in the 1980s and slight increase in the 1990s are mainly attributed to the precipitation variation in summer.The an⁃nual precipitation in Shijiazhuang area fluctuates obviously with the most precipitation of 1 038. 4 mm in 1963 and the least one of 276. 2 mm in 1965. In recent 54 years,the annual precipitation in Shijiazhuang decreases slightly with a linear trend of -11. 0 mm/(10 a).As for its spatial distribution,the annual precipitation increases in the north,and decreases in other parts of the city,yet without obvious trend.And for its temporal variation,the precipita⁃tion increases in spring with a linear trend of 0. 9 mm/( 10 a ) , while decreases in other seasons with the linear trends of -11. 9 mm/(10 a),-1. 1 mm/(10 a),-0. 3 mm/(10 a) for summer,autumn,and winter,respectively, all of which are not obvious.Generally,the reduction of annual precipitation in Shijiazhuang can be due to the pre⁃cipitation decrease in summer;there were seasonal and regional characteristics in the spatial distribution of the pre⁃cipitation change trends in four seasons in Shijiazhuang;and significant cycles exist in seasonal precipitation varia⁃tion in Shijiazhuang.关键词
2m温度/三维插值方法/地形/评估误导Key words
precipitation/spatial and temporal change/linear trend/periodic variation分类
天文与地球科学引用本文复制引用
赵滨,李子良,张博..三维插值方法在2m温度评估中的应用[J].南京信息工程大学学报,2016,8(4):343-364,22.基金项目
国家自然科学基金青年基金(41305091),中国气象局成都高原气象研究所科研基金( LPM201401) （41305091）
