安徽农业科学2011，Vol.39Issue(24)：14948-14953,6.
宁夏各月降水特征和可预测性分析
Analysis on the Characteristic and Predictability of Monthly Precipitation in Ningxia
陈海波 1严华生 2饶彤华 3张成军 2马国涛3
作者信息
- 1. 宁夏气象防灾减灾重点实验室,宁夏银川750002
- 2. 云南大学大气科学系,云南昆明650091
- 3. 宁夏固原市气象局,宁夏固原756000
- 折叠
摘要
Abstract
Based on monthly observed precipitation data at 19 meteorological stations in the Ningxia and 74 atmospheric circulation exponentials data of the National Climate Center, the temporal and spatial distribution characteristic and predictability were analyzed by variance, Empirical Orthogonal Function (EOF) , Optimal Subset Regression (OSR). Results indicated that the coefficient of variance of precipitation in winter was bigger. The variance contribution of EOF1 changed with 'U' trend, while that of EOF2 changed conversely; the spatial distribution was divided into three areas form north to south. The history return fitting accuracy rate was different from Jan to Nov, it maintained at a high level during January to April, but then gradually decreased to the minimum in May.关键词
宁夏/降水/时空分布/可预测性Key words
Ningxia/Precipitation/Temporal and spatial distribution/Predictability分类
天文与地球科学引用本文复制引用
陈海波,严华生,饶彤华,张成军,马国涛..宁夏各月降水特征和可预测性分析[J].安徽农业科学,2011,39(24):14948-14953,6.
