黑河地区戈壁下垫面地表辐射平衡及地表温度日较差的研究  

Study on Surface Radiation Balance and Surface Temperature Diurnal Range of Gobi Underlying Surface in Heihe Area

作　　者：朱灵芝 

机构地区：[1]成都信息工程大学大气科学学院,四川 成都

出　　处：《地球科学前沿（汉斯）》2019年第11期1097-1105,共9页Advances in Geosciences

基　　金：成都信息工程大学本科教学工程项目(BKJX2019007,BKJX2019013,BKJX2019042,BKJX2019056,BKJX2019062,BKJX2019081,BKJX2019089,BKJX2019120和JY2018012)支持。

摘　　要：本文利用黑河流域戈壁下垫面的戈壁站所获得的2013年1~12月辐射物理量数据,对黑河流域戈壁下垫面的地表辐射平衡及地表温度日较差进行了分析,得出主要结论如下:一天中戈壁下垫面地表温度日较差为30℃,是5 m气温的3倍,但两者温度均呈现有规律的昼夜循环曲线,白天的感热通量平均值远远大于潜热通量及土壤热通量,地–气能量交换主要是以感热的形式对大气进行加热,夜晚呈现相反的状态,净长波辐射开始增加,转换成主要以潜热的方式对大气加热,并且四季的潜热通量变化为夏季 】春季 】秋季 】冬季。In this paper, the radiation physical quantity data of the Gobi underlying surface of the Gobi basin from January to December 2013 were used to analyze the surface radiation balance and the daily surface temperature difference of the Gobi underlying surface of the Gobi basin. The main conclusions are as follows: During the day, the surface temperature of the Gobi underlying surface is 30°C, which is 3 times of the temperature of 5 m. However, both temperatures have a regular day and night cycle curve. The average sensible heat flux during the day is much larger than the latent heat flux and the soil heat flux, the ground-gas energy exchange mainly heats the atmosphere in the form of sensible heat, and the opposite state occurs at night. The net long-wave radiation begins to increase, and is converted into the main heat by the latent heat, and the change of latent heat flux in four seasons is summer >spring >autumn >winter.

关 键 词：辐射平衡 温度日较差 黑河流域 

分 类 号：P46[天文地球—大气科学及气象学]