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Presentation
Estimation of Land Surface Emissivity and Temperature Based on Spatial-Spectral Unmixing Analysis
3rd MERIS/(A)ATSR and OCLI-SLSTR (Sentinel-3) Preparatory Workshop (2012)
  • Z. Mitraka
  • M. Berger
  • A. Ruescas
  • J.A. Sobrino, University of Valencia
  • J.C. Jiménez-Muñoz, University of Valencia
  • C. Brockmann
  • Nektarios Chrysoulakis
Abstract
Land Surface Temperature (LST) is a key variable for studying land surface processes and surface-atmosphere interactions. In order to estimate LST using satellite sensors, measured radiance should be corrected for spectral emissivity and for atmospheric effects. In this paper the development of an innovative emissivity and LST retrieval scheme is examined utilizing the upcom-ing Sentinel-2 and Sentinel-3 missions, based on spatial-spectral unmixing techniques. Preliminary results indi-cate that this method has the potential to support emis-sivity and LST retrieval from the synergistic use of Sen-tinel-2 and Sentinel-3 observations.
Keywords
  • Surface emissivity; surface temperature; spatial-pectral unmixing
Publication Date
October 19, 2012
Citation Information
Mitraka, Z., Berger, M., Ruescas, A., Sobrino, J. A., Jiménez-Muñoz, J. C., Brockmann, C. and Chrysoulakis, N., 2012. Estimation of Land Surface Emissivity and Temperature based on Spatial-Spectral Unmixing analysis. In Proceedings of the 3rd MERIS/(A)ATSR and OCLI-SLSTR (Sentinel-3) Preparatory Workshop, held in ESA-ESRIN, Frascati, Italy, on 15 - 19 October, pp. 65 - 66.