基于遥感的城市温度与植被相关性分析——以四川省内江市为例(英文)

• 作者: 仇文侠 但尚铭 何政伟 薛万蓉 许辉熙
• 来源期刊: 景观研究：英文版
• 学科: 地球科学
• 关键词: Urban heat ISLAND effects REMOTE sensing(RS) BRIGHTNESS temperature Normalized DIFFERENCE VEGETATION index(NDVI) Correlation analysis
• 年，卷（期）: 2012,（2）
• 页码范围: 35-37
• 页数: 3页
• 分类号: P461.7

摘要

Landsat TM data(June 23,1988,May 6,2007) and Landsat ETM+data(May 10,2000) of Neijiang City,Sichuan Province was taken as the data source,brightness temperature of the study area was obtained by using TM/ETM+thermal infrared wave,and also normalized difference vegetation index(NDVI) was calculated.NDVI of the study area on June 23,1988,May 6,2007,and May 10,2000 was respectively obtained by using Band Math,the least square fitting was adopted to simulate the correlation between surface temperature and vegetation cover.Moreover,linear regression analysis of the correlation between vegetation cover and NDVI was carried out in Excel.The results showed that(a) most of the constructed area has a low NDVI value because there are large areas of hard surface such as buildings and roads,but less vegetation cover;(b) the quarters with better vegetation cover have higher NDVI values;the Tuojiang River has a negative NDVI value;rural areas have better vegetation cover and higher NDVI values.Brightness temperature and vegetation cover has distinct negative correlation,specifically,the higher the vegetation cover is,the lower the surface temperature is,and vice versa.