Abstract
This paper presents an algorithm to improve the spatial resolution, from 90 m to 30 m, of the thermal mapping of small bodies of water or near coasts obtained from the ASTER satellite sensor. The entire procedure is based only on ASTER images. The first part of the work deals with the physical and mathematical basis on which the algorithm was constructed, the schema of the main steps and the methods of validation of the algorithm. In the second part two applications of the algorithm are shown, the first on the area of the delta of the Po River (Italy), the second on the lagoon of Venice (Italy).
Highlights
The temperature of coastal and river waters is a physical quantity very important in various areas of environmental concern
It has been developed for the improvement of ASTER images acquired in the TIR based on information on the type of coverage of the area extracted from ASTER images acquired in the VNIR (Visible and Near Infrared) and with spatial resolution varying between 15 m and 30 m
In this work an algorithm for improving the spatial detail of the maps of coastal waters and watercourses temperature derived from ASTER images has been shown
Summary
The temperature of coastal and river waters is a physical quantity very important in various areas of environmental concern. The main purpose of the work presented in this paper is the construction of an algorithm to improve the spatial resolution, from 90 to 30 m, of the thermal mapping obtained from ASTER on coastal and river waters.
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