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Journal Article

The two-layered radiative transfer model for snow reflectance and its application to remote sensing of the Antarctic snow surface from space

Authors
/persons/resource/kokhanov

Kokhanovsky,  Alexander
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/brell

Brell,  Maximilian
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/segl

Segl,  K.
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Efremenko,  Dmitry
External Organizations;

Petkov,  Boyan
External Organizations;

Bianchini,  Giovanni
External Organizations;

Stone,  Robert
External Organizations;

/persons/resource/chabri

Chabrillat,  S.       
1.4 Remote Sensing, 1.0 Geodesy, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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5028817.pdf
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Citation

Kokhanovsky, A., Brell, M., Segl, K., Efremenko, D., Petkov, B., Bianchini, G., Stone, R., Chabrillat, S. (2024): The two-layered radiative transfer model for snow reflectance and its application to remote sensing of the Antarctic snow surface from space. - Frontiers in Environmental Science, 12, 1416597.
https://doi.org/10.3389/fenvs.2024.1416597


Cite as: https://gfzpublic.gfz.de/pubman/item/item_5028817
Abstract
The two-LAyered snow Radiative Transfer (LART) model has been proposed for snow remote sensing applications. It is based on analytical approximations of the radiative transfer theory. The geometrical optics approximation has been used to derive the local snow optical parameters, such as the probability of photon absorption by ice grains and the average cosine of single light scattering in a given direction in a snowpack. The application of the model to the selected area in Antarctica has shown that the technique is capable of retrieving the snow grain size both in the upper and lower snow layers, with grains larger in the lower snow layer as one might expect due to the metamorphism processes. Such a conclusion is confirmed by ground measurements of the vertical snow grain size variability in Antarctica.