A classification of six forest and three non-forest types was created from AVIRIS images and compared on a pixel-by-pixel basis to a published vegetation map, a classified SPOT (Satellite Pour l''Observation de la Terre) image, and a hybrid SPOT image and digital elevation model ...
It is necessary to develop new satellite methods to monitor boreal forests responses to climate warming. Remotely sensed maps derived from hyperspectral Advanced Visible/Infrared Imaging Spectrometer (AVIRIS) data were developed and compared for the four conifer forest ecosystems at the Bonanza Creek Expe...
Mapping the Location of Wildfires in Alaskan Boreal Forests Using AVHRR Imagery 来自 ResearchGate 喜欢 0 阅读量: 26 作者:NHF French,ES Kasischke,LL Bourgeau-Chavez,D Berry 摘要: The results of a study using satellite imagery to map boreal forest fires in Alaska in 1990 and 1991 are presented...
Fig. 5: Relationships between tree cover (TC) change 2000-2019 across North American boreal forests and environmental conditions. aMean tree cover 2000–2019.bMean annual temperatures (MAT).cMean annual precipitation (MAP). Relationships are shown as model fits ± standard errors around the ...
The map includes 11 vegetation types and smaller patches that allowed us to map the vegetation mosaic across the watershed. Post fire aerial photos were interpreted and digitized to produce a fire severity map that includes 5 classes. The classes are based on the canopy condition observed on the...
forests21,23, and even minor positive or negative changes in species diversity may have substantial effects on the boreal ecosystems’ carbon uptake and stability24. For example,Larixspp. (the dominant species across Eurasian boreal forests) are approaching a thermal tipping point at their southern ...
habitat for a 5,000 ha area in Algonquin Provincial Park, Ontario. The system is flexible and can be adapted to a variety of forest planning scenarios such as integrated timber production and habitat management, conservation of old growth forests, and protection of significant forest ecosystems....
Boreal forests are exposed to larger and more frequent fires due to climate change, with significant consequences for their carbon and water balances. Low-severity fires (trees charred but surviving) are the most common fire regime in the Eurasian boreal forest, but we still lack understanding on...
Estimating stand attributes of boreal forests using digital aerial photography and a shadow fraction methodThe aim of this study was to develop an imputing method to map forest stand attributes (height and volume) using panchromatic aerial photographs with a spatial resolution of 30 cm and Landsat ...
Retrieval of biomass in boreal forests from multitemporal ERS-1 and JERS-1 SAR images The response of JERS-1 and ERS-1 synthetic aperture radar (SAR) to the forest stem volume (biomass) was investigated by employing a digital stem volume map... L Kurvonen,J Pulliainen - 《IEEE Transact...