Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning
The goal of the study was to determine circadian movements of silver birch (Petula Bendula) branches and foliage detected with terrestrial laser scanning (TLS). The study consisted of two geographically separate experiments conducted in Finland and in Austria. Both experiments were carried out at th...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-02-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00222/full |
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| author | Eetu ePuttonen Eetu ePuttonen Christian eBriese Christian eBriese Gottfried eMandlburger Martin eWieser Martin ePfennigbauer András eZlinsky Norbert ePfeifer |
| author_facet | Eetu ePuttonen Eetu ePuttonen Christian eBriese Christian eBriese Gottfried eMandlburger Martin eWieser Martin ePfennigbauer András eZlinsky Norbert ePfeifer |
| author_sort | Eetu ePuttonen |
| collection | DOAJ |
| description | The goal of the study was to determine circadian movements of silver birch (Petula Bendula) branches and foliage detected with terrestrial laser scanning (TLS). The study consisted of two geographically separate experiments conducted in Finland and in Austria. Both experiments were carried out at the same time of the year and under similar outdoor conditions. Experiments consisted of 14 (Finland) and 77 (Austria) individual laser scans taken between sunset and sunrise. The resulting point clouds were used in creating a time series of branch movements. In the Finnish data, the vertical movement of the whole tree crown was monitored due to low volumetric point density. In the Austrian data, movements of manually selected representative points on branches were monitored. The movements were monitored from dusk until morning hours in order to avoid daytime wind effects. The results indicated that height deciles of the Finnish birch crown had vertical movements between -10.0 and 5.0 cm compared to the situation at sunset. In the Austrian data, the maximum detected representative point movement was 10.0 cm. The temporal development of the movements followed a highly similar pattern in both experiments, with the maximum movements occurring about an hour and a half before (Austria) or around (Finland) sunrise. The results demonstrate the potential of terrestrial laser scanning measurements in support of chronobiology. |
| first_indexed | 2024-04-11T23:14:35Z |
| format | Article |
| id | doaj.art-a808aceb71e946949e98dfd3a7f9907d |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-11T23:14:35Z |
| publishDate | 2016-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-a808aceb71e946949e98dfd3a7f9907d2022-12-22T03:57:41ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2016-02-01710.3389/fpls.2016.00222178882Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanningEetu ePuttonen0Eetu ePuttonen1Christian eBriese2Christian eBriese3Gottfried eMandlburger4Martin eWieser5Martin ePfennigbauer6András eZlinsky7Norbert ePfeifer8National Land Survey of FinlandCentre of Excellence in Laser Scanning ResearchEODC Earth Observation Data Centre for Water Resources Monitoring GmbHTechnische Universität WienTechnische Universität WienTechnische Universität WienRIEGL Laser Measurement Systems GmbHBalaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of SciencesTechnische Universität WienThe goal of the study was to determine circadian movements of silver birch (Petula Bendula) branches and foliage detected with terrestrial laser scanning (TLS). The study consisted of two geographically separate experiments conducted in Finland and in Austria. Both experiments were carried out at the same time of the year and under similar outdoor conditions. Experiments consisted of 14 (Finland) and 77 (Austria) individual laser scans taken between sunset and sunrise. The resulting point clouds were used in creating a time series of branch movements. In the Finnish data, the vertical movement of the whole tree crown was monitored due to low volumetric point density. In the Austrian data, movements of manually selected representative points on branches were monitored. The movements were monitored from dusk until morning hours in order to avoid daytime wind effects. The results indicated that height deciles of the Finnish birch crown had vertical movements between -10.0 and 5.0 cm compared to the situation at sunset. In the Austrian data, the maximum detected representative point movement was 10.0 cm. The temporal development of the movements followed a highly similar pattern in both experiments, with the maximum movements occurring about an hour and a half before (Austria) or around (Finland) sunrise. The results demonstrate the potential of terrestrial laser scanning measurements in support of chronobiology.http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00222/fullCircadian Rhythmtime serieschronobiologyplant movementsterrestrial laser scanning |
| spellingShingle | Eetu ePuttonen Eetu ePuttonen Christian eBriese Christian eBriese Gottfried eMandlburger Martin eWieser Martin ePfennigbauer András eZlinsky Norbert ePfeifer Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning Frontiers in Plant Science Circadian Rhythm time series chronobiology plant movements terrestrial laser scanning |
| title | Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning |
| title_full | Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning |
| title_fullStr | Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning |
| title_full_unstemmed | Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning |
| title_short | Quantification of overnight movement of birch (Betula pendula) branches and foliage with short interval terrestrial laser scanning |
| title_sort | quantification of overnight movement of birch betula pendula branches and foliage with short interval terrestrial laser scanning |
| topic | Circadian Rhythm time series chronobiology plant movements terrestrial laser scanning |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00222/full |
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