Fine-scale mapping based on satellite images of the Ukrainian Carpathians

Fine-scale mapping based on satellite images of the Ukrainian Carpathians

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Description: A fine scale land cover map for the Ukrainian Carpathians based on satellite images, Stady area: Ukrainian Carpathians, Materials Landsat-Images, Methods, Support Vector Machines, Methods, Chain classification Sample map, Quick Bird for the Ukrainian Carpathians, Test area points situation, Post processing: filtering, Forest cover in the region of Ukrainian Carpathians.

 
Author: Chaskovskyy O., Kuemmerle T., Hostert P., Knorn J., Kruglov I. (Fellow) | Visits: 2431 | Page Views: 2496
Domain:  High Tech Category: Photo Subcategory: Image Processing 
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Contents:
A fine-scale land-cover map for the Ukrainian Carpathians based on satellite images
Chaskovskyy O., Kuemmerle T., Hostert P., Knorn J., Kruglov I.

Forum Carphaticum

15-17 September 2010

Stady area: Ukrainian Carpathians
Ukrainian Carpathians - young mountains with cone-shaped peaks, low ridges and a flat slopes, among which valleys are situated. The highest peak of this part of Carpathians is Goverla. It's height is 2061 m. There is no glaciers, but snow is staying very long time. Often it avalanches down the slopes and damages the nature sights and people's livelihoods.
Forum Carphaticum 15-17 September 2010

Although the Carpathian Mountains occupy a small area in Ukraine, it house more than half of all animals of the country. Brown bear, wild boar, roe deer, noble and spotted deer, squirrel, marten, hare, wild cat, lynx are found shelter here. Only in the Carpathians live such endemic species as: carpathian squirrel carpathian newt, and a snow vole. The bisons are brought from the Bialowieza Forest.

Materials: Landsat-Images

Path-row 186-026

date 30.09.2000 10.06.2000

Path-row

date 22.08.2000 28.08.2002

Path-row

date 21.08.2002 04.07.2002

185-026 02.05.2000 184-026 27.05.2000 185-027 22.08.2000 184-027 12.06.2000

Forum Carphaticum

15-17 September 2010

Classifications set consists of 2 scenes from different vegetation periods (6+6 channels) and shaded topography model for every scene. Total 14 channel were used for a set.

an example of shaded topography model

Forum Carphaticum

15-17 September 2010

Methods ? Support Vector Machines An Alternative classifier no radiometric correction, very robust, relatively fast and approved in different case studies image SVM, IDL/ENVI based tool for SVM classification in remote sensing

Forum Carphaticum

15-17 September 2010

Methods ? Chain classification

classification of initial scene deriving of training data position in overlap area classification of target scene procedure of chain classification can be repeated along and across track over more than one scene

Methods ? Chain classification
SVM classification

Derivation of overlap area scene 1 & 2

Random sampling in overlap area

SVM classification

Sample map for the chain classification of Land-cover map
Min 150 p per class

Forum Carphaticum

15-17 September 2010

Quick Bird for the Ukrainian Carpathians

Forum Carphaticum

15-17 September 2010

Test area points situation

Total of 4382 test points for all scenes

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15-17 September 2010

Post-processing: filtering (clump ? eliminate)
Start: Classified image End: Filtered image

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15-17 September 2010

Result: the fine-scale land cover map for Ukrainian Carpathians

Forum Carphaticum September 2010

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Conclusions:
Ukrainian Carpathians had a forest cover of 56 % in 2000. Broadleaved, mixed and coniferous forests had proportions of 21 %, 19 %, and 16 % respectively. Farmland (managed grassland and cropland) covered 25 % of the study region.

Forum Carphaticum September 2010

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Forest cover in the region of Ukrainian Carpathians
Oblast thousands ha Official Statistic Lvivska 683,1 Zakarpatska 657,6 Ivano-Frankivska 590,0 Chernivetska 242,1 248,7 29,9 30,6 616,3 42,4 44,2 688,4 51,6 53,9 695,9 31,3 31,9 Satellite Official Statistic Area % Satellite

Forum Carphaticum

15-17 September 2010

Thank You !

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