Data Validation of the DLR Earth Sensing Imaging Spectrometer DESIS

Uta Heiden, Kevin Alonso Gonzalez, Martin Bachmann, Kara Burch, Emiliano Carmona, Daniele Cerra, Raquel de los Reyes, Daniele Dietrich, Uwe Knodt, David Krutz, Rupert Mueller, Mary Pagnutti (+4 others)
2020 IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium  
Imaging spectrometry provides densely sampled and finely structured spectral information for each image pixel over large areas, enabling the characterization of materials on the Earth's surface by measuring and analyzing quantitative parameters allowing the user to identify and characterize Earth surface materials such as minerals in rocks and soils, vegetation types and stress indicators, and water constituents. The recently launched DLR Earth Sensing Imaging Spectrometer (DESIS) installed on
more » ... he International Space Station (ISS) closes the long-term gap of sparsely available spaceborne imaging spectrometry data and will be part of the upcoming fleet of such new instruments in orbit. DESIS measures in the spectral range from 400 and 1000 nm with a spectral sampling distance of 2.55 nm and a Full Width Half Maximum (FWHM) of about 3.5 nm. The various DESIS data products available for users are described with the focus on specific processing steps. A summary of the data quality results are given. The product validation studies show that top-of-atmosphere radiance, geometrically corrected, and bottom-of-atmosphere reflectance products meet the mission requirements.
doi:10.1109/igarss39084.2020.9323367 fatcat:zl3gexsjhjgtpo4sdhdlaxmzei