Application of FABDEM and other modern digital elevation models in the agricultural monitoring system
Anna S. Kuznetsova, Alexander A. Pushkarev, Konstantin V. Krasnoshchekov, Oleg E. Yakubailik, Marina G. Erunova
Federal Research Center Krasnoyarsk Science Center of the SB RAS, Institute of Computational Modelling SB RAS,
The paper considers obtaining morphometric characteristics of the relief using modern methods of remote sensing of the Earth and geoinformation technologies to provide the agricultural monitoring system of the FRC KSC SB RAS. The new digital terrain model (DEM) of the global scale FABDEM and high-precision aerial photographs obtained by shooting from an unmanned aerial vehicle (UAV) and specialized geodetic equipment were used as initial data. Based on them, a number of thematic maps have been developed in the geoinformation systems QGIS, ArcGIS and Sputnik Agro, displaying the main morphometric characteristics of the relief. When making maps, the requirements for cartographic materials are met (choosing the correct cartographic projection, format, standard legend, etc.). The morphometric characteristics of the relief prepared using the FABDEM data set and UAV imagery were compared. The high degree of similarity between them demonstrates that the FABDEM DEM is a suitable option for obtaining information about the terrain in the absence of the possibility of shooting from a UAV. As a result, a large amount of information was obtained about the features of the device of the surface relief of the Mikhailovskoye agricultural experimental production facility (EPF). To store, distribute and analyze information about the structure of the surface of the object under study, thematic maps saved in the qgis project format were imported into the agricultural monitoring system of the FRC KSC SB RAS. The joint use of thematic maps on the terrain and data already included in the system (satellite data, vegetation indices, soil and climatic characteristics) will allow taking into account the state of agricultural land when developing strategies for the management and use of agricultural land.
agromonitoring, information systems, FABDEM, UAV, mapping