主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

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辽宁乡镇天气预报中风和相对湿度及云量的空间插值方法

陆忠艳1; 蔡福2; 刘文明1;袁子鹏1; 陈艳秋1; 陈明强3   

  1. (1.辽宁省气象台,辽宁 沈阳 110016;2.中国气象局沈阳大气环境研究所;辽宁 沈阳 110016;3.庄河市气象局,辽宁 庄河 116400)
  • 收稿日期:2008-12-29 修回日期:2009-03-16 出版日期:2009-08-26 发布日期:2009-08-26

Spatial interpolation methods of wind, relative humidity and cloud cover in villages and towns weather forecast in Liaoning province

LU Zhong-yan1; CAI Fu2 ;LIU Wen-ming1 ;YUAN Zi-peng1; CHEN Yan-qiu1; CHEN Ming-qiang3   

  1. (1.Liaoning Meteorological Observatory,Shenyang 110016, China; 2.Institute of Shenyang Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China; 3. Zhuanghe Meteorological Bureau, Zhuanghe 116400, China)
  • Received:2008-12-29 Revised:2009-03-16 Online:2009-08-26 Published:2009-08-26

摘要: 针对开展乡镇天气预报时对高精度逐日气象要素输入值的需要,以辽宁地区为例, 在乡镇预报前期研究成果的基础上,选用距离权重反比法作为基本方法,综合考虑海拔高度,建立风向、风速、相对湿度和云量历史资料库。结果表明:风速、相对湿度可由经度和纬度求算权重,然后采用海拔高度订正插值误差最小;风向和云量可由经度、纬度和海拔高度求算空间距离确定权重插值误差最小。

关键词: 风向, 风速, 相对湿度, 云量, 空间插值, 乡镇天气预报, 辽宁

Abstract: Based on the previous results of villages and towns weather forecast in Liaoning province and the altitude data, the historical database of wind direction, wind speed, relative humidity and cloud cover were established with the inverse distance weighted method in order to satisfy the needs of higher precision input values of daily meteorological elements in villages and towns weather forecast. The results indicate that the weights of wind speed and relative humidity are calculated by longitude and latitude. The interpolations are revised by the altitudes, and the error rates are lower. The weights of wind direction and cloud cover are determined by spatial distance calculating from longitude, latitude and altitude, and the error rates are lower.

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