Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra
<p>Key to the success of spaceborne missions is understanding snowmelt in our warming climate, as this has implications for nearly 2 billion people. An obstacle is that surface reflectance products over snow show an erroneous hook with decreases in the visible wavelengths, causing per-band and...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2025-06-01
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| Series: | The Cryosphere |
| Online Access: | https://tc.copernicus.org/articles/19/2315/2025/tc-19-2315-2025.pdf |
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| author | E. H. Bair D. A. Roberts D. R. Thompson P. G. Brodrick B. A. Wilder N. Bohn C. J. Crawford N. Carmon C. M. Vuyovich J. Dozier |
| author_facet | E. H. Bair D. A. Roberts D. R. Thompson P. G. Brodrick B. A. Wilder N. Bohn C. J. Crawford N. Carmon C. M. Vuyovich J. Dozier |
| author_sort | E. H. Bair |
| collection | DOAJ |
| description | <p>Key to the success of spaceborne missions is understanding snowmelt in our warming climate, as this has implications for nearly 2 billion people. An obstacle is that surface reflectance products over snow show an erroneous hook with decreases in the visible wavelengths, causing per-band and broadband reflectance errors of up to 33 % and 11 %, respectively. This hook is sometimes mistaken for soot or dust but can result from three artifacts: (1) background reflectance that is too dark, (2) an assumption of level terrain, or (3) differences in optical constants of ice. Sensor calibration and directional effects may also contribute. Solutions are being implemented.</p> |
| format | Article |
| id | doaj-art-eaf6732a28564326b8695dc2f5bd037e |
| institution | OA Journals |
| issn | 1994-0416 1994-0424 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj-art-eaf6732a28564326b8695dc2f5bd037e2025-08-20T02:34:55ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242025-06-01192315232010.5194/tc-19-2315-2025Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectraE. H. Bair0D. A. Roberts1D. R. Thompson2P. G. Brodrick3B. A. Wilder4N. Bohn5C. J. Crawford6N. Carmon7C. M. Vuyovich8J. Dozier9Leidos, Reston, VA, USADepartment of Geography, University of California, Santa Barbara, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USADepartment of Geosciences, Boise State University, Boise, ID, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAU.S. Geological Survey Earth Resources Observation and Science Center, Sioux Falls, SD, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USANational Aeronautics and Space Administration, Greenbelt, MD, USADepartment of Geography, University of California, Santa Barbara, CA, USA<p>Key to the success of spaceborne missions is understanding snowmelt in our warming climate, as this has implications for nearly 2 billion people. An obstacle is that surface reflectance products over snow show an erroneous hook with decreases in the visible wavelengths, causing per-band and broadband reflectance errors of up to 33 % and 11 %, respectively. This hook is sometimes mistaken for soot or dust but can result from three artifacts: (1) background reflectance that is too dark, (2) an assumption of level terrain, or (3) differences in optical constants of ice. Sensor calibration and directional effects may also contribute. Solutions are being implemented.</p>https://tc.copernicus.org/articles/19/2315/2025/tc-19-2315-2025.pdf |
| spellingShingle | E. H. Bair D. A. Roberts D. R. Thompson P. G. Brodrick B. A. Wilder N. Bohn C. J. Crawford N. Carmon C. M. Vuyovich J. Dozier Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra The Cryosphere |
| title | Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra |
| title_full | Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra |
| title_fullStr | Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra |
| title_full_unstemmed | Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra |
| title_short | Brief communication: Not as dirty as they look, flawed airborne and satellite snow spectra |
| title_sort | brief communication not as dirty as they look flawed airborne and satellite snow spectra |
| url | https://tc.copernicus.org/articles/19/2315/2025/tc-19-2315-2025.pdf |
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