Impact of Climate Zone on Impervious Surface Estimation and Mapping

Authored by: Hongsheng Zhang , Hui Lin , Yuanzhi Zhang , Qihao Weng

Remote Sensing of Impervious Surfaces

Print publication date:  September  2015
Online publication date:  September  2015

Print ISBN: 9781482254839
eBook ISBN: 9781482254860
Adobe ISBN:


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A climate zone can have significant impacts on impervious surface estimation using satellite images in tropical and subtropical areas. There are several major climate categories in the regions of concern, including tropical moist climate, wet-dry tropical climate, humid subtropical climate, and Mediterranean climate, in which the Mediterranean climate zone is located on the boundary between subtropical and temperate regions. Different climate zones have different seasonal patterns of temperature, precipitation, humidity, plants, and so forth. A climate zone can influence impervious surface estimation in different ways directly or indirectly. This influence is also known as the seasonal effects when using optical remote sensing images to map impervious surfaces. These seasonal effects include three aspects: (1) the difference in precipitation in dry seasons and wet seasons can produce a difference of water surface area on the land surface, (2) the seasonal changes of soil moisture in rainy and dry seasons can influence the spectral confusion between different land cover types, and (3) the seasonal changes of plants will change the vegetation coverage in the areas of hills, mountains, and greening zones in urban areas. Water body and vegetation are two important land cover types in urban remote sensing studies, and the distribution of these two land cover types lead to different patterns of spectral confusion in a given urban study area.

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