Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Tuomo Kauranne"'
Publikováno v:
IET Radar, Sonar & Navigation, Vol 15, Iss 10, Pp 1353-1360 (2021)
Abstract A multistatic passive radar network originally presented in Ptak et al. for long‐distance aircraft tracking is sensitive to track initialisation errors. When these errors exceed 50 km, target tracking often diverges. Initialisation can be
Externí odkaz:
https://doaj.org/article/b4dc5cf11b104bc19e0259d2f0d42a32
Publikováno v:
Ecological Indicators, Vol 142, Iss , Pp 109162- (2022)
Airborne laser scanning (ALS) assisted basal area larger than mean (BALM) estimation measures the cohort balance in forests and provides adequate opportunities to describe forest structure. However, a problem still exists that how the plot size, samp
Externí odkaz:
https://doaj.org/article/ba4ba1ac2dfc422f9dda75cedf2a0b62
Publikováno v:
Energies, Vol 15, Iss 5, p 1896 (2022)
This work aims at investigating the effects of forest heterogeneity on a wind-turbine wake under a neutrally stratified condition. Three types of forests, homogeneous (idealized), a real forest having natural heterogeneity, and an idealized forest ha
Externí odkaz:
https://doaj.org/article/6816250496d143c48480470d79e4757b
Autor:
Blanca Sanz, Jukka Malinen, Sanna Sirparanta, Jussi Peuhkurinen, Vesa Leppänen, Timo Melkas, Kirsi Riekki, Tuomo Kauranne, Mikko Vastaranta, Timo Tokola
Publikováno v:
Forests, Vol 12, Iss 9, p 1221 (2021)
The methodology presented here can assist in making timber markets more efficient when assessing the value of harvestable timber stands and the amounts of timber assortments during the planning of harvesting operations. Information on wood quality an
Externí odkaz:
https://doaj.org/article/f52584aadaf44c1895a47609f3fefd60
Autor:
Almasi S. Maguya, Katri Tegel, Virpi Junttila, Tuomo Kauranne, Markus Korhonen, Janice Burns, Vesa Leppanen, Blanca Sanz
Publikováno v:
Remote Sensing, Vol 7, Iss 7, Pp 8950-8972 (2015)
Canopy base height (CBH) is a key parameter used in forest-fire modeling, particularly crown fires. However, estimating CBH is a challenging task, because normally, it is difficult to measure it in the field. This has led to the use of simple estimat
Externí odkaz:
https://doaj.org/article/bc38edda2c124650bbcb448a4edbd171
Publikováno v:
Remote Sensing, Vol 6, Iss 7, Pp 6524-6548 (2014)
Extracting digital elevationmodels (DTMs) from LiDAR data under forest canopy is a challenging task. This is because the forest canopy tends to block a portion of the LiDAR pulses from reaching the ground, hence introducing gaps in the data. This pap
Externí odkaz:
https://doaj.org/article/00559bb1e9fb4e219ef33e550e67a846
Autor:
Ernest William Mauya, Joni Koskinen, Katri Tegel, Jarno Hämäläinen, Tuomo Kauranne, Niina Käyhkö
Publikováno v:
Forests, Vol 10, Iss 3, p 279 (2019)
Remotely sensed assisted forest inventory has emerged in the past decade as a robust and cost efficient method for generating accurate information on forest biophysical parameters. The launching and public access of ALOS PALSAR-2, Sentinel-1 (SAR), a
Externí odkaz:
https://doaj.org/article/f3ec07b0921b447ba88fdf03e82fdef0
Autor:
Georgy Rybakov, Jussi Peuhkurinen, Petri Latva-Käyrä, Maria Villikka, Sanna Sirparanta, Alexander Kolesnikov, Virpi Junttila, Tuomo Kauranne
Publikováno v:
Remote Sensing, Vol 10, Iss 11, p 1796 (2018)
The study considers a forest inventory for the mean volume, basal area, and coniferous/deciduous mapping of a large territory in central Siberia (Russia), employing a camera relascope at arbitrary sized sample plots and medium resolution satellite im
Externí odkaz:
https://doaj.org/article/6b01089f9e024e6382c02e11287ff196
Autor:
Virpi Junttila, Tuomo Kauranne
Publikováno v:
Remote Sensing, Vol 10, Iss 11, p 1677 (2018)
Remotely sensed data-based models used in operational forest inventory usually give precise and accurate predictions on average, but they often suffer from systematic under- or over-estimation of extreme attribute values resulting in too narrow or sk
Externí odkaz:
https://doaj.org/article/faae9f517e3b406da52d83e9eb3c25df
Autor:
Tuomo Kauranne, Sergey Pyankov, Virpi Junttila, Alexander Kedrov, Andrey Tarasov, Anton Kuzmin, Jussi Peuhkurinen, Maria Villikka, Ville-Matti Vartio, Sanna Sirparanta
Publikováno v:
Forests, Vol 8, Iss 3, p 72 (2017)
Airborne laser scanning (ALS) based stand level forest inventory has been used in Finland and other Nordic countries for several years. In the Russian Federation, ALS is not extensively used for forest inventory purposes, despite a long history of re
Externí odkaz:
https://doaj.org/article/71ab700a1d7245d1ae6e0ede6405857b