基于TM影像的不同季节北京城市热环境研究  

A Study of Seasonal Urban Heat Environment in Beijing Based on TM Image

作　　者：方永侠 申双和[2] 韩莹 杨沈斌[2] 尹盟毅 

机构地区：[1]陕西省咸阳市气象局,咸阳712000 [2]南京信息工程大学应用气象学院,南京210044

出　　处：《气候与环境研究》2011年第4期487-493,共7页Climatic and Environmental Research

基　　金：2007年城市气象科学研究基金UMRF200703

摘　　要：利用2005-2006年4景北京Landsat TM影像,通过热红外波段反演地表温度,揭示不同季节城市热环境分布特征及其空间差异。分别利用遥感反演的地面温度和地面气象站观测的气温数据,计算地表热岛强度和空气热岛强度,并分析其季节变化,结果表明：城区相对近郊区,热岛效应在夏季显著;城区相对于乡村,四季都存在较强的热岛效应。Using seasonal land surface temperature in Beijing area from four scenes Landsat TM data du-ring 2005 and 2006 and the land surface temperature retrieved from thermal infrared,thermal field distribution characteristic and its spatial difference of four seasons are analyzed.Then,surface heat island intensities and air heat island intensities are calculated by using LST and air temperature observed by weather stations,and their seasonality are analysed.The results show that relative to suburb area,the urban has evident heat island effect,and strong heat island effect in each season to the rural area.

关 键 词：LANDSAT TM影像 城市热环境 热岛强度 季节特征 

分 类 号：P463.3[天文地球—大气科学及气象学]