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Development of Land-Use/Land-Cover Maps Using Landsat-8 and MODIS Data, and Their Integration for Hydro-Ecological

Sadia Afrin1, Anil Gupta1,2, Babak Farjad1,2

  • 1Department of Geomatics Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada.

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Summary

A 2016 land-use and land-cover (LULC) map of the Athabasca River watershed was created using Landsat-8 and MODIS data. This map provides crucial data for sustainable management of the watershed, highlighting major LULC classes and incorporating wetland and burned areas.

Keywords:
Athabasca River watershedISODATA clusteringLand use and land coverecologyhydrologypost-classification modificationwetland

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Area of Science:

  • Environmental Science
  • Remote Sensing
  • Geographic Information Systems (GIS)

Background:

  • The Athabasca River watershed is vital to Alberta's economy and environment, experiencing rapid landscape changes from natural and human factors.
  • A current land-use and land-cover (LULC) map is essential for various users and purposes due to these dynamic changes.

Purpose of the Study:

  • To create a detailed 2016 LULC map of the Athabasca River watershed.
  • To enhance the map's utility for hydro-ecological applications and decision-making in watershed management.

Main Methods:

  • Utilized Landsat-8 Operational Land Imager (OLI) images and Moderate Resolution Imaging Spectroradiometer (MODIS)-derived enhanced vegetation index (EVI) images.
  • Employed iterative self-organizing data analysis (ISODATA) clustering and post-classification improvement with ancillary geospatial data.
  • Integrated Alberta merged wetland inventory data using data fusion techniques to identify specific categories like wetlands and burned areas.

Main Results:

  • Generated a 2016 LULC map with 14 classes, achieving 74.95% overall accuracy and 68.34% Cohen's kappa.
  • Identified major LULC classes: coniferous forest (47.30%), deciduous forest (16.76%), mixed forest (6.65%), agriculture (6.37%), water (6.10%), and developed land (3.78%).
  • Produced specialized maps highlighting wetland (approx. 30%) and burned (approx. 6%) areas, valuable for hydro-ecological studies.

Conclusions:

  • The developed LULC map and derived products offer critical data for the sustainable management of the Athabasca River watershed.
  • These maps serve as effective decision-support tools for policymakers and regulatory authorities.
  • The integration of wetland and burned area data enhances the map's applicability for hydro-ecological research and management.