ISPRS-Archives

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

ISPRS-Archives

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

2194-9034

Copernicus Publications

Göttingen, Germany

10.5194/isprs-archives-XLVI-1-W1-2021-9-2022

THE DESIS L2A PROCESSOR AND VALIDATION OF L2A PRODUCTS USING AERONET AND RADCALNET DATA

de los Reyes

¹ Alonso

¹ Bachmann

² Carmona

¹ Langheinrich

¹ Müller

¹ Pflug

https://orcid.org/0000-0002-4626-9393

Richter

German Aerospace Center (DLR), Earth Observation Center, Remote Sensing Technology Institute, Oberpfaffenhofen, Wessling, Germany

German Aerospace Center (DLR), Earth Observation Center, Remote Sensing Data Center, Oberpfaffenhofen, Wessling, Germany

German Aerospace Center (DLR), Earth Observation Center, Remote Sensing Technology Institute, Berlin-Adlershof, Germany

11 02 2022

XLVI-1/W1-2021 9 12

2022

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/

This article is available from https://isprs-archives.copernicus.org/articles/isprs-archives-XLVI-1-W1-2021-9-2022.html

The full text article is available as a PDF file from https://isprs-archives.copernicus.org/articles/isprs-archives-XLVI-1-W1-2021-9-2022.pdf

The hyperspectral instrument ”DLR Earth Sensing Imaging Spectrometer” (DESIS) is a VNIR sensor on-board of the International Space Station (ISS) and operational since October 2019. DESIS acquires images of Earth on user request with a swath of about 30 km width and 235 bands with a Full Width at Half Maximum (FWHM) of 3.5 nm in the spectral range between 400 to 1000 nm.In this article we will present the basis of the atmospheric correction by PACO software, implemented inside the DESIS Ground Segment as L2A processor. The resulting L2A products will be validated against independent in-situ measurements.The aerosol optical thickness and water vapor will be compared with the Aerosol Robotic Network (AERONET) measurements and the surface reflectance will be validated with the Radiometric Calibration Network (RadCalNet) data.