Effect of small-scale snow surface roughness on snow albedo and reflectance
The primary goal of this paper is to present a model of snow surface albedo accounting for small-scale surface roughness effects. The model is based on photon recollision probability, and it can be combined with existing bulk volume albedo models, such as Two-streAm Radiative TransfEr in Snow (TARTE...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00055626 2024-09-15T18:39:00+00:00 Effect of small-scale snow surface roughness on snow albedo and reflectance Manninen, Terhikki Anttila, Kati Jääskeläinen, Emmihenna Riihelä, Aku Peltoniemi, Jouni Räisänen, Petri Lahtinen, Panu Siljamo, Niilo Thölix, Laura Meinander, Outi Kontu, Anna Suokanerva, Hanne Pirazzini, Roberta Suomalainen, Juha Hakala, Teemu Kaasalainen, Sanna Kaartinen, Harri Kukko, Antero Hautecoeur, Olivier Roujean, Jean-Louis 2021-02 electronic https://doi.org/10.5194/tc-15-793-2021 https://noa.gwlb.de/receive/cop_mods_00055626 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055277/tc-15-793-2021.pdf https://tc.copernicus.org/articles/15/793/2021/tc-15-793-2021.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-793-2021 https://noa.gwlb.de/receive/cop_mods_00055626 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055277/tc-15-793-2021.pdf https://tc.copernicus.org/articles/15/793/2021/tc-15-793-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/tc-15-793-2021 2024-06-26T04:41:37Z The primary goal of this paper is to present a model of snow surface albedo accounting for small-scale surface roughness effects. The model is based on photon recollision probability, and it can be combined with existing bulk volume albedo models, such as Two-streAm Radiative TransfEr in Snow (TARTES). The model is fed with in situ measurements of surface roughness from plate profile and laser scanner data, and it is evaluated by comparing the computed albedos with observations. It provides closer results to empirical values than volume-scattering-based albedo simulations alone. The impact of surface roughness on albedo increases with the progress of the melting season and is larger for larger solar zenith angles. In absolute terms, small-scale surface roughness can decrease the total albedo by up to about 0.1. As regards the bidirectional reflectance factor (BRF), it is found that surface roughness increases backward scattering especially for large solar zenith angle values. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 15 2 793 820 |
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English |
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article Verlagsveröffentlichung Manninen, Terhikki Anttila, Kati Jääskeläinen, Emmihenna Riihelä, Aku Peltoniemi, Jouni Räisänen, Petri Lahtinen, Panu Siljamo, Niilo Thölix, Laura Meinander, Outi Kontu, Anna Suokanerva, Hanne Pirazzini, Roberta Suomalainen, Juha Hakala, Teemu Kaasalainen, Sanna Kaartinen, Harri Kukko, Antero Hautecoeur, Olivier Roujean, Jean-Louis Effect of small-scale snow surface roughness on snow albedo and reflectance |
topic_facet |
article Verlagsveröffentlichung |
description |
The primary goal of this paper is to present a model of snow surface albedo accounting for small-scale surface roughness effects. The model is based on photon recollision probability, and it can be combined with existing bulk volume albedo models, such as Two-streAm Radiative TransfEr in Snow (TARTES). The model is fed with in situ measurements of surface roughness from plate profile and laser scanner data, and it is evaluated by comparing the computed albedos with observations. It provides closer results to empirical values than volume-scattering-based albedo simulations alone. The impact of surface roughness on albedo increases with the progress of the melting season and is larger for larger solar zenith angles. In absolute terms, small-scale surface roughness can decrease the total albedo by up to about 0.1. As regards the bidirectional reflectance factor (BRF), it is found that surface roughness increases backward scattering especially for large solar zenith angle values. |
format |
Article in Journal/Newspaper |
author |
Manninen, Terhikki Anttila, Kati Jääskeläinen, Emmihenna Riihelä, Aku Peltoniemi, Jouni Räisänen, Petri Lahtinen, Panu Siljamo, Niilo Thölix, Laura Meinander, Outi Kontu, Anna Suokanerva, Hanne Pirazzini, Roberta Suomalainen, Juha Hakala, Teemu Kaasalainen, Sanna Kaartinen, Harri Kukko, Antero Hautecoeur, Olivier Roujean, Jean-Louis |
author_facet |
Manninen, Terhikki Anttila, Kati Jääskeläinen, Emmihenna Riihelä, Aku Peltoniemi, Jouni Räisänen, Petri Lahtinen, Panu Siljamo, Niilo Thölix, Laura Meinander, Outi Kontu, Anna Suokanerva, Hanne Pirazzini, Roberta Suomalainen, Juha Hakala, Teemu Kaasalainen, Sanna Kaartinen, Harri Kukko, Antero Hautecoeur, Olivier Roujean, Jean-Louis |
author_sort |
Manninen, Terhikki |
title |
Effect of small-scale snow surface roughness on snow albedo and reflectance |
title_short |
Effect of small-scale snow surface roughness on snow albedo and reflectance |
title_full |
Effect of small-scale snow surface roughness on snow albedo and reflectance |
title_fullStr |
Effect of small-scale snow surface roughness on snow albedo and reflectance |
title_full_unstemmed |
Effect of small-scale snow surface roughness on snow albedo and reflectance |
title_sort |
effect of small-scale snow surface roughness on snow albedo and reflectance |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-793-2021 https://noa.gwlb.de/receive/cop_mods_00055626 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055277/tc-15-793-2021.pdf https://tc.copernicus.org/articles/15/793/2021/tc-15-793-2021.pdf |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-793-2021 https://noa.gwlb.de/receive/cop_mods_00055626 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00055277/tc-15-793-2021.pdf https://tc.copernicus.org/articles/15/793/2021/tc-15-793-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-15-793-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
2 |
container_start_page |
793 |
op_container_end_page |
820 |
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1810483385862193152 |