气象与环境学报Issue(6)：145-149,5.DOI:10.3969/j.issn.1673-503X.2013.06.023
K 指数在黑龙江省晴雨预报中的应用
Application of K index on rain or shine weather forecast in Heilongjiang province
摘要
Abstract
Although the relative humidity and wind field in lower atmosphere were very effective to forecast rain or shine weather,there were still some missing or false-alarm forecasts.In order to improve the accuracy rates of rain or shine weather forecast in Heilongjiang province,the forming reasons of weather cases with and without rain were analyzed.The results indicate that the temporal and spatial distributions of K index are indicative to rain or shine weather forecast,and could help to forecast the complex weather condition in which relative humidity in low level is small or wind convergence is poor,which are easy to lead to a missing or false-alarm forecast.Precipitation often appears in the high value center area or high energy tongue area of K index and in the strong K index gradi-ent area or energy front,while it is seldom in the low value center area of K index.The threshold values with or without rain in the high and low values area of K index vary in different seasons.关键词
K 指数高值区/K 指数低值区/能量锋Key words
High value area of K index/Low value area of K index/Energy front分类
天文与地球科学引用本文复制引用
赵玲,李树岭,王安娜,冯琦,吕爽..K 指数在黑龙江省晴雨预报中的应用[J].气象与环境学报,2013,(6):145-149,5.基金项目
黑龙江省气象局2011-2012年重点项目“黑龙江省单站降水预报方法研究”和黑龙江省气象局2013项目“单站降水预报指标汇编”（HQ2013005）共同资助。 （）
