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Comparative assessment of the performance of airborne and spaceborne spectral data for monitoring surface CO2 leakages by Rajesh Govindan; Anna Korre; Sevket Durucan; Claire E. Imrie is a Engineering article available to read on EtoBox.

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Recent research has demonstrated the potential of high resolution airborne optical remote sensing technology for monitoring CO 2 storage sites. This research shows that lower resolution spaceborne datasets can also be used. Unlike airborne data, which are normally acquired on-demand, satellite data are acquired periodically with relatively good spatial and temporal resolutions, and a much wider coverage. The detection performance for CO 2 leakage related anomalies is shown to vary with the spatial and spectral resolutions of the data. This was established using an airborne hyperspectral dataset acquired over Latera, Italy, which is a natural analogue site for CO 2 leakage. The data cube was systematically degraded using a Gaussian Point Spread Function (PSF), processed using an unsupervised geostatistical and probabilistic methodology and the detection performances were compared using the Area Under the Receiver Operating Characteristic curve (AUROC). The implications are positive in terms of the use of satellite imagery to monitor leakages. The use of spectral data from spaceborne imaging instruments such as the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER

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Author

Rajesh Govindan; Anna Korre; Sevket Durucan; Claire E. Imrie

Publisher

Elsevier ; Elsevier BV (ISSN 1876-6102)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)