2011年12月至2012年1月抚顺市夜间升温过程定量分析

摘要

Based on the meteorological observation and micaps data about the temperatures rised without falling weather process in Fushun from December 2011 to January 2012 during the night,the temperature variations of the non adiabatic item of the temperature variation equation were compared and analyzed in 1 000,925,850 and 700 hPa layer. The results showed that just for non adiabatic item,there were three conditions that could be favorable to screen temperature rising,lower dew-point deficit existed in any two layers,a lower dew-point existed in any layer present and the layer had a greater vapour pressure at 800,each layer had a lower dew-point deficit.%利用抚顺市章党站2011年12月至2012年1月在夜间出现气温不降反升天气过程时的常规气象要素观测资料以及micaps系统资料，通过温度变化方程，从1000、925、850、700 hPa 4个层面，对温度变化的非绝热项进行了对比分析。结果表明：仅就非绝热项而言，有3种情况有利于百叶箱温度的上升，即任意2层有较低温度露点差、任意一层有较低温度露点差同时该层具有较大的水汽压、8：00每一层都有较低的温度露点差。