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Slope Estimation fr...
Slope Estimation from ICESat/GLAS
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Mahoney, Craig (författare)
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- Kljun, Natascha (författare)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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Los, Sietse O. (författare)
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Chasmer, Laura (författare)
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Hacker, Jorg M. (författare)
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Hopkinson, Christopher (författare)
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North, Peter R. J. (författare)
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Rosette, Jacqueline A. B. (författare)
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van Gorsel, Eva (författare)
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(creator_code:org_t)
- 2014-10-21
- 2014
- Engelska.
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Ingår i: Remote Sensing. - : MDPI AG. - 2072-4292. ; 6:10, s. 10051-10069
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://www.mdpi.com...
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- We present a novel technique to infer ground slope angle from waveform LiDAR, known as the independent slope method (ISM). The technique is applied to large footprint waveforms (similar to 60 m mean diameter) from the Ice, Cloud and Land Elevation Satellite (ICESat) Geoscience Laser Altimeter System (GLAS) to produce a slope dataset of near-global coverage at 0.5 degrees x 0.5 degrees resolution. ISM slope estimates are compared against high resolution airborne LiDAR slope measurements for nine sites across three continents. ISM slope estimates compare better with the aircraft data (R-2 = 0.87 and RMSE = 5.16 degrees) than the Shuttle Radar Topography Mission Digital Elevation Model (SRTM DEM) inferred slopes (R-2 = 0.71 and RMSE = 8.69 degrees). ISM slope estimates are concurrent with GLAS waveforms and can be used to correct biophysical parameters, such as tree height and biomass. They can also be fused with other DEMs, such as SRTM, to improve slope estimates.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- LiDAR
- slope
- terrain
- waveform
- SRTM
- biophysical parameter retrieval
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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