Assessment of terrestrial laser scanning technology for obtaining high‐resolution DEMs of soils
Identifieur interne : 000590 ( Main/Exploration ); précédent : 000589; suivant : 000591Assessment of terrestrial laser scanning technology for obtaining high‐resolution DEMs of soils
Auteurs : Robert Jan Barneveld [Pays-Bas] ; Manuel Seeger [Allemagne] ; Ivar Maalen-Johansen [Norvège]Source :
- Earth Surface Processes and Landforms [ 0197-9337 ] ; 2013-01.
Abstract
Terrestrial Laser Scanners (TLS) provide a non‐contact method to measure soil microtopography of relatively large surface areas. The appropriateness of the technology in relatation to the derived Digital Elevation Models (DEM) however has not been reported. The suitability of TLS for soil microtopography measurements was tested on‐field for three large soil surface areas in agricultural fields. The acquired point clouds were filtered with a custom cloud import algorithm, and converted into digital elevation models (DEM) of different resolutions. To assess DEM quality, point clouds measured from different viewpoints were statistically compared. The statistical fit between point clouds from different viewpoints depends on spatial resolution of the DEM. The best results were obtained at the higher resolutions (0.02 to 0.04 cm), where less than 5 % of the grid cells showed significant differences between one viewpoint and the next (p < 0.01). Copyright © 2012 John Wiley & Sons, Ltd.
Url:
DOI: 10.1002/esp.3344
Affiliations:
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Process. Landforms</title><idno type="ISSN">0197-9337</idno><idno type="eISSN">1096-9837</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2013-01">2013-01</date><biblScope unit="volume">38</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="90">90</biblScope><biblScope unit="page" to="94">94</biblScope></imprint><idno type="ISSN">0197-9337</idno></series><idno type="istex">7D0C91C413DD1A5A179317A17955006F3E75C5AE</idno><idno type="DOI">10.1002/esp.3344</idno><idno type="ArticleID">ESP3344</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0197-9337</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Terrestrial Laser Scanners (TLS) provide a non‐contact method to measure soil microtopography of relatively large surface areas. The appropriateness of the technology in relatation to the derived Digital Elevation Models (DEM) however has not been reported. The suitability of TLS for soil microtopography measurements was tested on‐field for three large soil surface areas in agricultural fields. The acquired point clouds were filtered with a custom cloud import algorithm, and converted into digital elevation models (DEM) of different resolutions. To assess DEM quality, point clouds measured from different viewpoints were statistically compared. The statistical fit between point clouds from different viewpoints depends on spatial resolution of the DEM. The best results were obtained at the higher resolutions (0.02 to 0.04 cm), where less than 5 % of the grid cells showed significant differences between one viewpoint and the next (p < 0.01). Copyright © 2012 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Norvège</li><li>Pays-Bas</li></country></list><tree><country name="Pays-Bas"><noRegion><name sortKey="Barneveld, Robert Jan" sort="Barneveld, Robert Jan" uniqKey="Barneveld R" first="Robert Jan" last="Barneveld">Robert Jan Barneveld</name></noRegion><name sortKey="Barneveld, Robert Jan" sort="Barneveld, Robert Jan" uniqKey="Barneveld R" first="Robert Jan" last="Barneveld">Robert Jan Barneveld</name></country><country name="Allemagne"><noRegion><name sortKey="Seeger, Manuel" sort="Seeger, Manuel" uniqKey="Seeger M" first="Manuel" last="Seeger">Manuel Seeger</name></noRegion></country><country name="Norvège"><noRegion><name sortKey="Maalen Ohansen, Ivar" sort="Maalen Ohansen, Ivar" uniqKey="Maalen Ohansen I" first="Ivar" last="Maalen-Johansen">Ivar Maalen-Johansen</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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