摘要
本文用美国NOAA1974年6月—1984年5月(其中1978年3—12月缺测)2.5×2.5经纬度网格月平均OLR资料,以及同期青藏高原上83个站的月总降水量资料,分析发现在夏季(6—9月)两者在空间和年际变化上都有密切的负相关,而地面测站数量和高山积雪对上述相关系数的影响较小。分区求得的回归方程,可以较好地估算高原雨季的平均降水量及相应的总潜热。
In this paper the NOAA's monthly mean grided OLR data over the Qinghai-Xizang Plateau from June 1974 to May 1984 (missed from March to December of 1978) with the grid size of 2.5°× 2.5° Lat. / Lon. and the observed monthly rainfall data at 83 stations over the Plateau in the same period have been analysed.
The results show that there are close negative correlation between the monthly mean OLR and monthly rainfall in space and time in summer (from June to September), while there exists little influence of the numbers of Plateau surface stations and snow cover on above correlation coefficients. Based on the regression equations fitted in four sub-areas of the Plateau, the evaluating of monthly mean rainfall and their total latent heat of condensation in the Plateau rainy seasons can be well made.
出处
《高原气象》
CSCD
北大核心
1990年第3期256-264,共9页
Plateau Meteorology
