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...
Published in: | Fungal Ecology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/28743 https://doi.org/10.1016/j.funeco.2023.101233 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/28743 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/28743 2023-05-15T14:56:10+02:00 Feasibility 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. 2023-03-04 https://hdl.handle.net/10037/28743 https://doi.org/10.1016/j.funeco.2023.101233 eng eng Elsevier Fungal ecology Erlandsson RE, Arneberg M, Tømmervik H, Finne EA, Nilsen L, Bjerke JW. Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover. Fungal ecology. 2023 FRIDAID 2127621 doi:10.1016/j.funeco.2023.101233 1754-5048 1878-0083 https://hdl.handle.net/10037/28743 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) https://creativecommons.org/licenses/by/4.0 VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2023 ftunivtroemsoe https://doi.org/10.1016/j.funeco.2023.101233 2023-03-16T00:04:38Z 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 University of Tromsø: Munin Open Research Archive Arctic Svalbard Fungal Ecology 63 101233 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480 |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 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::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480 VDP::Mathematics and natural scienses: 400::Zoology and botany: 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 |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://hdl.handle.net/10037/28743 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_relation |
Fungal ecology Erlandsson RE, Arneberg M, Tømmervik H, Finne EA, Nilsen L, Bjerke JW. Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover. Fungal ecology. 2023 FRIDAID 2127621 doi:10.1016/j.funeco.2023.101233 1754-5048 1878-0083 https://hdl.handle.net/10037/28743 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2023 The Author(s) 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_ |
1766328195460628480 |