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<p>This research was focused on assessing the groundwater potentiality of Eastern Doars region using the ENTROPY, SWARA and its’ integrated weightage technique. Delineation of Ground Water Potential Zone (GWPZ) was done using the PROMITHEE approach. Total 12 indicators such as, the Topographic Wetness Index (TWI), Curvature, Elevation, Drainage Density, Distance from River, Rainfall, Slope, Normalized Difference Vegetation Index (NDVI), Topographic Roughness Index (TRI), Aspect, Land-Use Land Cover (LULC) and Topographic Positioning Index (TPI) were used in this research. The Ground Water Potential Zone (GWPZ) was classified into five zones such as Very High, High, Moderate, Low and Very Low. 89.255 Sq. Km, area was identified as the Very High GWPZ; 187.416 Sq. Km. area was marked as the High GWPZ (45.3% area). Low and Very Low GWPZ was marked with 76.474 Sq. Km, area (12.5% area). Moderate GWPZ was marked in 153.746 Sq. Km. area (25.2% area). The final GWPZ map was validated using water depth data from 27 wells amongst which, 7 wells were monitored by the Central Ground Water Board (CGWB), while the remaining were field-surveyed groundwater depth points. The Receiver Operating Curve (ROC) and the Precision Recall Curve were employed for the validation. The Area Under Curve for Precision Recall (PR-AUC) comes approximately 0.92. The findings of this research offer valuable insights for developing a strong policy framework to address groundwater depletion and promote sustainable water resource management to combat with increasing agricultural demands and environmental challenges.</p>

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Mapping of groundwater potential zone: a case study in Kumargram Block in Eastern Dooars region of West Bengal, India

  • 期刊论文

  • 发表日期：

    2026年7月14日

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  • Prasanya Sarkar,
  • Shrinwantu Raha,
  • Anup Sen,
  • Koushik Sarkar,
  • Saumyajit Ghosh,
  • Shasanka Kumar Gayen

摘要

This research was focused on assessing the groundwater potentiality of Eastern Doars region using the ENTROPY, SWARA and its’ integrated weightage technique. Delineation of Ground Water Potential Zone (GWPZ) was done using the PROMITHEE approach. Total 12 indicators such as, the Topographic Wetness Index (TWI), Curvature, Elevation, Drainage Density, Distance from River, Rainfall, Slope, Normalized Difference Vegetation Index (NDVI), Topographic Roughness Index (TRI), Aspect, Land-Use Land Cover (LULC) and Topographic Positioning Index (TPI) were used in this research. The Ground Water Potential Zone (GWPZ) was classified into five zones such as Very High, High, Moderate, Low and Very Low. 89.255 Sq. Km, area was identified as the Very High GWPZ; 187.416 Sq. Km. area was marked as the High GWPZ (45.3% area). Low and Very Low GWPZ was marked with 76.474 Sq. Km, area (12.5% area). Moderate GWPZ was marked in 153.746 Sq. Km. area (25.2% area). The final GWPZ map was validated using water depth data from 27 wells amongst which, 7 wells were monitored by the Central Ground Water Board (CGWB), while the remaining were field-surveyed groundwater depth points. The Receiver Operating Curve (ROC) and the Precision Recall Curve were employed for the validation. The Area Under Curve for Precision Recall (PR-AUC) comes approximately 0.92. The findings of this research offer valuable insights for developing a strong policy framework to address groundwater depletion and promote sustainable water resource management to combat with increasing agricultural demands and environmental challenges.