Contribución al estudio de los humedales del manto eólico litoral de el Abalario-Doñana a partir de imagénes AHS

High spectral-resolution AHS data have been collected over the Manto Eolico Litoral El AbalarioDonana (MEL) within the nature reserve of Donana, a Ramsar wetland. This ecosystem constitutes one of the largest and most important remaining wetlands in Europe. The MEL is located in the eolic mantle of the Huelva coastal plain and holds a large number of permanent and temporal shallow marsh lagoons. Natural vegetation is mainly composed of different types of shrub communities, whose distribution depends on their position with regard to the phreatic water table depth of the Almonte-Marismas aquifer. The AHS system is a new 80-band airborne hyperspectral scanner covering the visible through long wave thermal IR. Data were collected during two flight campaigns in spring and early fall 2004. Atmospheric correction and in situ spectral reflectance measurements have been applied and the data has been geo-rectified using an integrated GPS/INS. Surface water fluctuations during the especially humid 2004 hydrologic cycle have been mapped and a preliminary spectral characterization of hygrophytic shrub vegetation has been performed .