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Proceedings Paper

Variations of spectral signature profiles of wet and dry targets for supporting the detection of water-leakages using satellite data
Author(s): Athos Agapiou; Kyriacos Themistocleous; Dimitrios D. Alexakis; Nikolas Kourtis; Apostolos Sarris; Skevi Perdikou; Chris R. I. Clayton; Helena Phinikaridou; Andreas Manoli; Diofantos G. Hadjimitsis
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Paper Abstract

Satellite data can be used as a valuable tool for the detection of water pipeline leakages in semiarid areas. However the use of multi-temporal satellite images for this purpose can be problematic since reflectance values may change due to phenological changes of plants, radiometric errors during the pre-processing of satellite data, etc. It is therefore important to establish a spectral signature library with “ground truth data” for different scenarios of water leakages in a control site minimizing other potential errors. For this purpose, the GER 1500 spectroradiometer was used for measuring the reflectance values of three different targets: soil, vegetation and asphalt. The targets were saturated with a specific amount of water and then several spectroradiometric measurements were taken. The narrowband reflectance values were then re-scaled to spectral bands of Landsat 5 TM and spectral signature variations were highlighted for all targets before and after moisture level were increased. Using these data, threshold values were defined in order to be used for multispectral satellite data analysis. Specifically, this data was used for detection of water leakages in pipelines in Cyprus using Landsat 5 TM images,.

Paper Details

Date Published: 16 October 2013
PDF: 12 pages
Proc. SPIE 8887, Remote Sensing for Agriculture, Ecosystems, and Hydrology XV, 88871L (16 October 2013); doi: 10.1117/12.2029289
Show Author Affiliations
Athos Agapiou, Cyprus Univ. of Technology (Cyprus)
Kyriacos Themistocleous, Cyprus Univ. of Technology (Cyprus)
Dimitrios D. Alexakis, Cyprus Univ. of Technology (Cyprus)
Nikolas Kourtis, Cyprus Univ. of Technology (Cyprus)
Apostolos Sarris, Foundation for Research and Technology-Hellas (Greece)
Skevi Perdikou, Frederick Research Ctr. (Cyprus)
Chris R. I. Clayton, Southampton Univ. (United Kingdom)
Helena Phinikaridou, Water Development Department (Cyprus)
Andreas Manoli, Water Development Department (Cyprus)
Diofantos G. Hadjimitsis, Cyprus Univ. of Technology (Cyprus)

Published in SPIE Proceedings Vol. 8887:
Remote Sensing for Agriculture, Ecosystems, and Hydrology XV
Christopher M. U. Neale; Antonino Maltese, Editor(s)

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