Satellite Image Based Mapping of Wetland Tundra Landscapes Using ILWIS GIS (Presentation Slides)
Presented at the Conference 'Actual Problems of the State and Management of Water Resources. Organizer: Volga State University of Technology. Yoshkar-Ola, Russia. 22 pp. DOI: 10.13140/RG.2.2.30084.88960
22 Pages Posted: 4 Apr 2019 Last revised: 19 Dec 2019
Date Written: March 19, 2015
Presentation shows an application of ILWIS GIS for RS data processing with a case study of detecting land cover changes during 20-year period (1988-2011) in Yamal Peninsula, Arctic. Research goals: Distribution of different types of landscapes in the wetland tundra of the Yamal Peninsula; Monitoring changes in the landscapes of tundra; Analysis of the landscape dynamics for 2 decades (1988-2011). Data include 2 satellite images: Landsat TM for 1988 and 2011. Methods include clustering, segmentation and classification. Technical approach: Landsat TM data processing by ILWIS GIS. Methods: Supervised classification of Landsat TM images. Results demonstrated changes in selected land cover types. Study area: tundra landscapes in the wetlands of the Yamal Peninsula in the Far North of Russia. Statistical results of calculations of types of vegetation cover were obtained in a semi-automatic mode in ILWIS GIS. In 1988 ’willow shrubs’ type covered 412,292 pixels from the total part of the AOI, and ’high willow’ class is 823,430 pixels. 2011: willow increased to 651427 pixels, (’willow shrubs’), and 893092 pixels (’high willows’). Both combined classes of willows, typical for AOI with a high water content, cover total 1544519 pixels, which is 40.27 %. Area of grasses decreased compared to shrub and willow. Max area covered by class ’heather and dry grass’ is 933798 pixels.
Note: Downloadable document is in Russian.
Keywords: GIS, Mapping, Environmental Monitoring, Ecological Analysis, Land Cover Types, Land Cover Changes, Land Use, Tundra, Remote Sensing
JEL Classification: Y92, Y10, Q20, Q23, Q24, Q30, Q39, Q50, Q51, Q52, Q54, G55, G56
Suggested Citation: Suggested Citation