THE RELATIONSHIP BETWEEN LAND USE/LAND COVER AND AEROSOL OPTICAL DEPTH VARIATION IN HANOI CITY
Keywords:
Relationship, land use and land cover, AOD, Landsat 9 and MODIS images
Abstract
This study investigates the relationship between AOD variation and different land use/land cover (LULC) types. These LULC types were first classified from Landsat 9 images using the maximum likelihood classification (MLC) method. The AOD variation for each LULC type acquired from MODIS imagery was then extracted using the mask method. The statistical parameters for the AOD variation in each LULC were summarized and compared. It was found that there existed a close relationship (a positive correlation) between the AOD variation and water bodies and built-up land. Lower AOD values were usually distributed in greening land and crop land whereas the lowest AOD values were mainly concentrated in forest and river sand.