Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover
Vegetation indices are corner stones in vegetation monitoring. However, previous field studies on lichens and NDVI have been based on passive sensors. Active handheld sensors, with their own light sources, enables high- precision monitoring under variable ambient conditions. We investigated the use...
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ftoslouniv:oai:www.duo.uio.no:10852/101712 2023-05-15T14:56:11+02:00 Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover ENEngelskEnglishFeasibility of active handheld NDVI sensors for monitoring of lichen ground cover Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. 2023-02-20T15:19:42Z http://hdl.handle.net/10852/101712 https://doi.org/10.1016/j.funeco.2023.101233 EN eng FRAM/369924 FRAM/369910 NFR/294948 NFR/287402 Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. . Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover. Fungal ecology. 2023 http://hdl.handle.net/10852/101712 2127621 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Fungal ecology&rft.volume=&rft.spage=&rft.date=2023 Fungal ecology 63 https://doi.org/10.1016/j.funeco.2023.101233 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 1754-5048 VDP::Zoologiske og botaniske fag: 480 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2023 ftoslouniv https://doi.org/10.1016/j.funeco.2023.101233 2023-03-22T23:37:00Z Vegetation indices are corner stones in vegetation monitoring. However, previous field studies on lichens and NDVI have been based on passive sensors. Active handheld sensors, with their own light sources, enables high- precision monitoring under variable ambient conditions. We investigated the use of handheld sensor NDVI for monitoring pale lichen cover across three study sites from boreal heathlands to High Arctic tundra (62–79 ◦N), and compared it with Sentinel-2 satellite NDVI. NDVI decreased with increasing cover of pale lichens but the correlation between active and satellite NDVI varied between areas. NDVI values declined with lichen cover and ranged from 0.4–0.18 when lichen cover was above 40%. Active ground measurements of NDVI explained 81% of the variation in the satellite NDVI values in Svalbard (High Arctic), while the relationships were lower (~30% explained variation) in boreal regions (Troms-Finnmark and Røros). We show that active sensors are feasible for extracting information from lichen-dominated vegetation. Lichen Pale lichens Cladonia NDVI Active sensor Remote sensing Monitoring Article in Journal/Newspaper Arctic Finnmark Svalbard Tundra Finnmark Troms Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Svalbard Fungal Ecology 63 101233 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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ftoslouniv |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 |
description |
Vegetation indices are corner stones in vegetation monitoring. However, previous field studies on lichens and NDVI have been based on passive sensors. Active handheld sensors, with their own light sources, enables high- precision monitoring under variable ambient conditions. We investigated the use of handheld sensor NDVI for monitoring pale lichen cover across three study sites from boreal heathlands to High Arctic tundra (62–79 ◦N), and compared it with Sentinel-2 satellite NDVI. NDVI decreased with increasing cover of pale lichens but the correlation between active and satellite NDVI varied between areas. NDVI values declined with lichen cover and ranged from 0.4–0.18 when lichen cover was above 40%. Active ground measurements of NDVI explained 81% of the variation in the satellite NDVI values in Svalbard (High Arctic), while the relationships were lower (~30% explained variation) in boreal regions (Troms-Finnmark and Røros). We show that active sensors are feasible for extracting information from lichen-dominated vegetation. Lichen Pale lichens Cladonia NDVI Active sensor Remote sensing Monitoring |
format |
Article in Journal/Newspaper |
author |
Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. |
author_facet |
Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. |
author_sort |
Erlandsson, Rasmus |
title |
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
title_short |
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
title_full |
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
title_fullStr |
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
title_full_unstemmed |
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover |
title_sort |
feasibility of active handheld ndvi sensors for monitoring of lichen ground cover |
publishDate |
2023 |
url |
http://hdl.handle.net/10852/101712 https://doi.org/10.1016/j.funeco.2023.101233 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Finnmark Svalbard Tundra Finnmark Troms |
genre_facet |
Arctic Finnmark Svalbard Tundra Finnmark Troms |
op_source |
1754-5048 |
op_relation |
FRAM/369924 FRAM/369910 NFR/294948 NFR/287402 Erlandsson, Rasmus Arneberg, Marit Klemetsen Tømmervik, Hans Finne, Eirik Aasmo Nilsen, Lennart Bjerke, Jarle W. . Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover. Fungal ecology. 2023 http://hdl.handle.net/10852/101712 2127621 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Fungal ecology&rft.volume=&rft.spage=&rft.date=2023 Fungal ecology 63 https://doi.org/10.1016/j.funeco.2023.101233 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1016/j.funeco.2023.101233 |
container_title |
Fungal Ecology |
container_volume |
63 |
container_start_page |
101233 |
_version_ |
1766328220675735552 |