The Effect of Wind on Tree Stem Parameter Estimation Using Terrestial Laser Scanning

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Vaaja, Matti
dc.contributor.author Virtanen, Juho-Pekka
dc.contributor.author Kurkela, Matti
dc.contributor.author Lehtola, Ville
dc.contributor.author Hyyppä, Juha
dc.contributor.author Hyyppä, Hannu
dc.date.accessioned 2016-10-13T06:06:08Z
dc.date.issued 2016-06-07
dc.identifier.citation Vaaja , M , Virtanen , J-P , Kurkela , V , Lehtola , V , Hyyppä , J & Hyyppä , H 2016 , THE EFFECT OF WIND ON TREE STEM PARAMETER ESTIMATION USING TERRESTRIAL LASER SCANNING . in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume III-8, 2016 . ISPRS , pp. 117-122 , XXIII ISPRS Congress, 12–19 July 2016, Prague, Czech Republic , 12 July . DOI: 10.5194/isprsannals-III-8-117-2016 en
dc.identifier.isbn 2194-9050
dc.identifier.other PURE UUID: 7d38c76f-fffb-4a0c-be00-5297c1fbed9b
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/the-effect-of-wind-on-tree-stem-parameter-estimation-using-terrestial-laser-scanning(7d38c76f-fffb-4a0c-be00-5297c1fbed9b).html
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/11638063/isprs_annals_III_8_117_2016.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/22907
dc.description.abstract The 3D measurement technique of terrestrial laser scanning (TLS) in forest inventories has shown great potential for improving the accuracy and efficiency of both individual tree and plot level data collection. However, the effect of wind has been poorly estimated in the error analysis of TLS tree measurements although it causes varying deformations to the trees. In this paper, we evaluated the effect of wind on tree stem parameter estimation at different heights using TLS. The data consists of one measured Scots pine captured from three different scanning directions with two different scanning resolutions, 6.3 mm and 3.1 mm at 10 m. The measurements were conducted under two different wind speeds, approximately 3 m/s and 9 m/s, as recorded by a nearby weather station of the Finnish Meteorological Institute. Our results show that the wind may cause both the underestimation and overestimation of tree diameter when using TLS. The duration of the scanning is found to have an impact for the measured shape of the tree stem under 9 m/s wind conditions. The results also indicate that a 9 m/s wind does not have a significant effect on the stem parameters of the lower part of a tree (<28% of the tree height). However, as the results imply, the wind conditions should be taken into account more comprehensively in analysis of TLS tree measurements, especially if multiple scans from different positions are registered together. In addition, TLS could potentially be applied to indirectly measure wind speed by observing the tree stem movement. en
dc.format.extent 6
dc.format.extent 117-122
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartof XXIII ISPRS Congress, 12–19 July 2016, Prague, Czech Republic en
dc.relation.ispartofseries ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume III-8, 2016 en
dc.rights openAccess en
dc.subject.other 1171 Geosciences en
dc.subject.other 113 Computer and information sciences en
dc.title The Effect of Wind on Tree Stem Parameter Estimation Using Terrestial Laser Scanning en
dc.type A4 Artikkeli konferenssijulkaisussa fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Built Environment
dc.subject.keyword terrestrial laser scanning
dc.subject.keyword wind
dc.subject.keyword tree reconstruction
dc.subject.keyword stem diameter
dc.subject.keyword stem location
dc.subject.keyword pine
dc.subject.keyword 1171 Geosciences
dc.subject.keyword 113 Computer and information sciences
dc.identifier.urn URN:NBN:fi:aalto-201610135007
dc.identifier.doi 10.5194/isprsannals-III-8-117-2016


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