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Correcting for Syst...
Correcting for Systematic Underestimation of Topographic Glacier Aerodynamic Roughness Values From Hintereisferner, Austria
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- Chambers, Joshua R. (författare)
- University of Leeds
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- Smith, Mark W. (författare)
- University of Leeds
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- Smith, Thomas (författare)
- University of Leeds
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- Sailer, Rudolf (författare)
- University of Innsbruck
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- Quincey, Duncan J. (författare)
- University of Leeds
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- Carrivick, Jonathan L. (författare)
- University of Leeds
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- Nicholson, Lindsey (författare)
- University of Innsbruck
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- Mertes, Jordan (författare)
- Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Centre for Environmental and Climate Science (CEC),Faculty of Science
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- Stiperski, Ivana (författare)
- University of Innsbruck
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- James, Mike R. (författare)
- Lancaster University
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(creator_code:org_t)
- 2021-05-28
- 2021
- Engelska.
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Ingår i: Frontiers in Earth Science. - : Frontiers Media SA. - 2296-6463. ; 9
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http://dx.doi.org/10... (free)
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https://www.frontier...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Spatially-distributed values of glacier aerodynamic roughness (z0) are vital for robust estimates of turbulent energy fluxes and ice and snow melt. Microtopographic data allow rapid estimates of z0 over discrete plot-scale areas, but are sensitive to data scale and resolution. Here, we use an extensive multi-scale dataset from Hintereisferner, Austria, to develop a correction factor to derive z0 values from coarse resolution (up to 30 m) topographic data that are more commonly available over larger areas. Resulting z0 estimates are within an order of magnitude of previously validated, plot-scale estimates and aerodynamic values. The method is developed and tested using plot-scale microtopography data generated by structure from motion photogrammetry combined with glacier-scale data acquired by a permanent in-situ terrestrial laser scanner. Finally, we demonstrate the application of the method to a regional-scale digital elevation model acquired by airborne laser scanning. Our workflow opens up the possibility of including spatio-temporal variations of z0 within glacier surface energy balance models without the need for extensive additional field data collection.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- aerodynamic roughness
- glacier
- structure from motion
- terrestrial laser scanning
- z
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Chambers, Joshua ...
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Smith, Mark W.
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Smith, Thomas
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Sailer, Rudolf
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Quincey, Duncan ...
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Carrivick, Jonat ...
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visa fler...
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Nicholson, Linds ...
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Mertes, Jordan
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Stiperski, Ivana
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James, Mike R.
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visa färre...
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- NATURVETENSKAP
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