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- Title
Comparative analysis of atmospheric radiative transfer models using the Atmospheric Look-up table Generator (ALG) toolbox (version 2.0).
- Authors
Vicent, Jorge; Verrelst, Jochem; Sabater, Neus; Alonso, Luis; Rivera-Caicedo, Juan Pablo; Martino, Luca; Muñoz-Marí, Jordi; Moreno, José
- Abstract
Atmospheric radiative transfer models (RTMs) are software tools that help researchers in understanding the radiative processes occurring in the Earth's atmosphere. Given their importance in remote sensing applications, the intercomparison of atmospheric RTMs is therefore one of the main tasks to evaluate model performance and identify the characteristics that differ between models. This can be a tedious tasks that requires a good knowledge of the model inputs-outputs and generation of large databases of consistent simulations. With the evolution of these software tools, their increase in complexity bears implications towards their use in practical applications and model intercomparison. Existing RTM-specific graphical user interfaces are not optimized for performing intercomparison studies of a wide variety of atmospheric RTMs. In this paper, we present the Atmospheric Look-up table Generator (ALG) version 2.0, a new software tool that facilitates generating large databases for a variety of atmospheric RTMs. ALG facilitates consistent and intuitive user interaction to enable running model executions and storing RTM data for any spectral configuration in the optical domain. We demonstrate the utility of ALG to perform intercomparison studies and global sensitivity analysis of broadly used atmospheric RTMs (6SV, MODTRAN, libRadtran). We expect that providing ALG to the research community will facilitate the usage of atmospheric RTMs to a wide range of applications in Earth Observation.
- Subjects
RADIATIVE transfer; GRAPHICAL user interfaces; ATMOSPHERIC models; COMPARATIVE studies; ATMOSPHERE
- Publication
Geoscientific Model Development Discussions, 2019, p1
- ISSN
1991-9611
- Publication type
Article
- DOI
10.5194/gmd-2019-188