Browsing Scientific publications by Subject "NDVI"
Now showing items 1-9 of 9
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Development of new metrics to assess and quantify climatic drivers of Extreme event driven Arctic browning
(Journal article, 2020)Rapid climate change in Arctic regions is resulting in more frequent extreme climatic events. These can cause large-scale vegetation damage, and are therefore among key drivers of declines in biomass and productivity (or ... -
Feasibility of active handheld NDVI sensors for monitoring of lichen ground cover
(Peer reviewed; Journal article, 2023)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- ... -
Impacts of snow season on ground-ice accumulation, soil frost andprimary productivity in a grassland of sub-Arctic Norway
(Peer reviewed; Journal article, 2015)Europe’s and the World’s northernmost agriculture is very vulnerable to harsh overwintering conditions. It is important from both an economic and societal standpoint to have accurate methods of predicting the severity ... -
Increased nationwide use of green spaces in Norway during the COVID-19 pandemic
(Peer reviewed; Journal article, 2023)In recent years, there has been growing concern about the decline in human green space use and nature-based recreation in Western countries. While some evidence suggests that the COVID-19 pandemic led to increased recreational ... -
Legacies of Historical Exploitation of Natural Resources Are More Important Than Summer Warming for Recent Biomass Increases in a Boreal–Arctic Transition Region
(Peer reviewed; Journal article, 2019)Eurasian forest cover at high northern latitudes (> 67 N) has increased in recent decades due to stimulatory effects of global warming, but other factors may be important. The objective of this study is to compare the ... -
Life-history attributes and resource dynamics determine intraspecific home-range sizes in Carnivora
(Peer reviewed; Journal article, 2015)Home ranges capture a fundamental aspect of animal ecology, resulting from interactions between metabolic demands and resource availability. Yet, the understanding of their emergence is currently limited by lack of ... -
Record-low primary productivity and highplant damage in the Nordic Arctic Region in2012 caused by multiple weather events andpest outbreaks
(Peer reviewed; Journal article, 2014)The release of cold temperature constraints on photosynthesis has led to increased productivity (greening) in significant parts (32–39%) of the Arctic, but much of the Arctic shows stable (57–64%) or reduced productivity ... -
Using ordinary digital cameras in place of near-infrared sensors to derive vegetation indices for phenology studies of high arctic vegetation
(Journal article; Peer reviewed, 2016)To remotely monitor vegetation at temporal and spatial resolutions unobtainable with satellite-based systems, near remote sensing systems must be employed. To this extent we used Normalized Difference Vegetation Index ... -
Why do avian responses to change in Arctic green-up vary?
(Peer reviewed; Journal article, 2024)Global climate change has altered the timing of seasonal events (i.e., phenology) for a diverse range of biota. Within and among species, however, the degree to which alterations in phenology match climate variability ...