Browsing by Author "Vasyliev, Volodymyr V."
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Item Analysis of Methodologies for Carbon Stock Estimation in Forests(Український державний університет науки і технологій, ННІ «Інститут промислових та бізнес технологій», ІВК «Системні технології», Дніпро, 2022) Kavats, Olena O.; Khramov, Dmitriy A.; Sergieeiva, Kateryna L.; Vasyliev, Volodymyr V.ENG: Current approaches to carbon stock estimation in forest ecosystems are discussed. Datasets containing biomass and carbon stock estimates that can be used for training/validation in machine learning are described. Examples of applying the remote approach to assessing forest biomass over large areas are analyzed. To estimate the forest carbon stocks in Ukraine, the most promising is the remote approach, which combines ground-based and satellite measurements for forest classification and statistical modeling of carbon stocks. For training and validation of machine learning algorithms, it is proposed to use the GEDI Biomass Map covering most of the territory of Ukraine — from the southern borders to the latitude of Chernihiv in the north. A prototype of forest biomass estimating product in Ukraine can be based on publicly available MODIS NBAR data, SRTM DEM, ECMWF climate data and use the Random Forest machine learning method.Item Open Access Satellite Data for Global Greenhouse Gas Monitoring(Український державний університет науки і технологій, ННІ «Інститут промислових та бізнес технологій», 2022) Kavats, Olena O.; Khramov, Dmitriy A.; Sergieieva, Kateryna L.; Vasyliev, Volodymyr V.ENG: Open satellite concentration data for the main greenhouse gases (CO2, CH4, N2O) are considered in terms of their possible use for local, regional, and global monitoring. The main data characteristics are provided. The satellite products most suitable for global moni-toring of greenhouse gas concentrations are specified. The disadvantages of existing satellite data are analyzed.