Rational and Sustainable Water Resource Management in the Ptolemais Lignite Basin Using Remotely Sensed Data

Abstract

Future investment feasibility studies concerning post-mining repurposing utilities and economic transitions should focus on regional water resource management and the hydraulic protection of any utilities. Satellite images in different bands and Digital Elevation Models (DEM) of the Ptolemais basin were processed, leading to a more accurate estimation of the runoff ratio and percolation ratio. Furthermore, the saturated and unsaturated areas were delineated, leading to the recognition of potential artificial ground water recharge zones and zones where appropriate hydraulic protection measures are necessary.

Keywords

• Topographic Wetness Index (<i>TWI</i>)
• Power Stream Index (<i>SI</i>)
• slope length and steepness factor (<i>LS</i>-factor)
• Normalized Difference Water Index (<i>NDWI</i>)
• Modified Normalized Difference Water Index (<i>MNDWI</i>)
• Normalized Difference Vegetation Index (<i>NDVI</i>)