气象与环境学报2013，Vol.29Issue(3)：92-96,5.DOI:10.3969/j.issn.1673-503X.2013.03.015
乡镇精细化最高最低气温预报方法研究
A refined forecast method of township minimum and maximum air temperature
摘要
Abstract
The differences of minimum and maximum air temperature between weather stations located in county and township of Anhui province were analyzed from October of 2008 to September of 2009.The results show that both difference is significant and it changes with the seasons.According to the forecast product of forecaster and the methods of the revised Barnes as well as the first-order Kalman filter,it forecasts the minimum and maximum air temperature in township.It suggests that the prediction accuracy rates are high using this method.The accuracy rates of the minimum temperature in the first 3 days are close to that in county and both differences are only within 1％,while the differences increase with the increasing of valid forecast time.For the maximum temperature,the accuracy rates that the forecast error is within 2 ℃ are still within 3 ％ compared with the forecast product in county.This method is better than the MOS method based on output products of the WRF model.The effects of the firstorder Kalman filter after and before the revise show that the Kalman filter has a positive effect for township temperature in the first four days,while it has no effect or a negative effect from the fifth to seventh day.The forecast accuracy rates of the maximum temperature from the fourth to seventh days could be significantly improved after the turning synoptic processes are discriminated.关键词
县站气温/乡镇气温/Barnes插值/卡尔曼滤波/精细化Key words
Temperature in country/ Temperature in township/ Barnes method/ Kalman filter/ Refinization分类
天文与地球科学引用本文复制引用
邱学兴,王东勇,朱红芳..乡镇精细化最高最低气温预报方法研究[J].气象与环境学报,2013,29(3):92-96,5.基金项目
公益性行业(气象)科研专项"基于GRAPES模式产品的误差订正与降尺度气象要素预报技术(GYHY201006017)"资助. （气象）
