Satellite Image Based Mapping of Wetland Tundra Landscapes Using ILWIS GIS

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...

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Bibliographic Details
Main Author: Polina Lemenkova
Format: Other/Unknown Material
Language:English
Published: 2015
Subjects:
GIS
Mapping
Environmental Monitoring
Ecological Analysis
Land Cover Types
Land Cover Changes
Land Use
Tundra
Remote Sensing
Arctic
Yamal Peninsula
Online Access:https://hdl.handle.net/11585/968886
https://www.slideshare.net/PolinaLemenkova/satellite-image-based-mapping-of-wetland-tundra-landscapes-using-ilwis-gis
http://ssrn.com/abstract=3349517
https://zenodo.org/record/2572931
https://doi.org/10.6084/m9.figshare.7434620.v1
https://hal.science/hal-02447111v1
https://difusion.ulb.ac.be/vufind/Record/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/364519/Holdings
Description
Summary: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.

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