南京信息工程大学学报2011，Vol.3Issue(1)：28-35,8.
1960-2008年南方地区冰冻时空分布特征
Temporo-spatial distribution of frost in southern China during 1960-2008
摘要
Abstract
Based on the data of daily frost and air temperature in 1960-2008 from 240 stations,we analyze the te1mporal and spatial distribution of frost in southern China using regression analysis, accumulative anomaly , discrete power spectrum,correlation analysis,and GIS spatial analysis function. The result shows that in terms of the temporal variation, annual average freezing days gradually increase during 1960-1986 and rapidly decrease during 1987-2008. Frost mainly occurs in January , December and February. The potential cycles are mainly medium-long cycles,such as 49. 0,24. 5,16. 3 and 4. 1 a. In terms of the spatial distribution,frost frequency and intensity show distinct latitudinal zonation and vertical zonation,which decrease with latitude and are higher in the east and west than in the middle of southern China.关键词
南方地区/冰冻/离散功率谱/冰冻周期/时空分布分类
天文与地球科学引用本文复制引用
王颖,王晓云,江志红,曾宪宁,赵铁松,邹晨曦,王美双..1960-2008年南方地区冰冻时空分布特征[J].南京信息工程大学学报,2011,3(1):28-35,8.基金项目
资助项目国家科技支撑计划(2008BAK50B02) （2008BAK50B02）
国家自然科学基金(40901297) （40901297）
