Details
Originalsprache | Englisch |
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Titel des Sammelwerks | Ultraviolet Ground- and Space-based Measurements, Models, and Effects |
Untertitel | 30 July - 1 August 2001, San Diego, USA |
Erscheinungsort | Bellingham |
Herausgeber (Verlag) | SPIE |
Seiten | 152-159 |
Seitenumfang | 8 |
ISBN (Print) | 0-8194-4196-1 |
Publikationsstatus | Veröffentlicht - 17 Jan. 2002 |
Publikationsreihe
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Herausgeber (Verlag) | SPIE |
Band | 4482 |
ISSN (Print) | 0277-786X |
Abstract
Albedo inversion techniques are investigated in this work. Several methods are applied to spectral irradiance data from a measurement campaign held in the German Alps during the spring of 1999. One first method is based on the comparison of measurements of absolute levels of UV irradiance with model calculations. The second method takes advantage of changes in the spectral slope of spectral UV irradiance, which is a function of the surface albedo. In the third method, the surrounding area is partitioned into snow-covered and snow-free regions, and the effective albedo estimated by applying a higher or lower reflectivity to each facet before integrating over the surroundings. We present sensitivity analysis, the differences and the correlations between the various methods as well as the results for the different locations.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Informatik (insg.)
- Angewandte Informatik
- Mathematik (insg.)
- Angewandte Mathematik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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Ultraviolet Ground- and Space-based Measurements, Models, and Effects: 30 July - 1 August 2001, San Diego, USA. Bellingham: SPIE, 2002. S. 152-159 (Proceedings of SPIE - The International Society for Optical Engineering; Band 4482).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Effective surface albedo due to snow cover of the surrounding area
AU - Weihs, P. P.
AU - Lenoble, J.
AU - Blumthaler, M.
AU - Seckmeyer, G.
AU - Philipona, R.
AU - De La Casiniere, A.
AU - Sergent, C.
AU - Martin, T.
AU - Gröbner, J.
AU - Cabot, T.
AU - Masserot, D.
AU - Schmucki, D.
AU - Simic, S.
AU - Rengarajan, G.
N1 - Copyright: Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2002/1/17
Y1 - 2002/1/17
N2 - Albedo inversion techniques are investigated in this work. Several methods are applied to spectral irradiance data from a measurement campaign held in the German Alps during the spring of 1999. One first method is based on the comparison of measurements of absolute levels of UV irradiance with model calculations. The second method takes advantage of changes in the spectral slope of spectral UV irradiance, which is a function of the surface albedo. In the third method, the surrounding area is partitioned into snow-covered and snow-free regions, and the effective albedo estimated by applying a higher or lower reflectivity to each facet before integrating over the surroundings. We present sensitivity analysis, the differences and the correlations between the various methods as well as the results for the different locations.
AB - Albedo inversion techniques are investigated in this work. Several methods are applied to spectral irradiance data from a measurement campaign held in the German Alps during the spring of 1999. One first method is based on the comparison of measurements of absolute levels of UV irradiance with model calculations. The second method takes advantage of changes in the spectral slope of spectral UV irradiance, which is a function of the surface albedo. In the third method, the surrounding area is partitioned into snow-covered and snow-free regions, and the effective albedo estimated by applying a higher or lower reflectivity to each facet before integrating over the surroundings. We present sensitivity analysis, the differences and the correlations between the various methods as well as the results for the different locations.
KW - Albedo
KW - Mountains
KW - UV radiation
UR - http://www.scopus.com/inward/record.url?scp=18644377698&partnerID=8YFLogxK
U2 - 10.1117/12.452913
DO - 10.1117/12.452913
M3 - Conference contribution
AN - SCOPUS:18644377698
SN - 0-8194-4196-1
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 152
EP - 159
BT - Ultraviolet Ground- and Space-based Measurements, Models, and Effects
PB - SPIE
CY - Bellingham
ER -