Abstract
Groundwater potential (GWP) mapping in the drought prone hard rock terrains is a fundamental aspect towards development and management for the society and environment. The present research was carried out in parts of drought prone Manjeera basin, of Deccan basaltic province, India. This research aims to delineate GWP zones using application of machine learning (ML) models namely random forest (RF), support-vector machine (SVM) and artificial neural network (ANN) with geospatial technique to integrate hydrogeological/ geo-environmental groundwater conditioning variables. A total of 1598 well inventory data of groundwater was utilized in a 70:30 ratio of training and testing, respectively. The 3 ML models categorized the GWP zone into five classes namely excellent, good, moderate, poor and very poor. The RF, SVM and ANN models demonstrated that favourable GWP zone (excellent GWP + Good GWP) spatially accounts for 37.85, 38.82 and 32.36% of the study area, respectively. The model predictability was quantified using area under the receiver operation characteristics (ARUROC) curve values, which exhibits RF model with highest success rate (81.62%) followed by SVM (79.10%) and ANN (77.18%) model. This research proves that application of ML models with geospatial technique is a way forward for groundwater resource development and management.
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The authors wish to express their sincere thanks to Dr. Raj Kumar, Director, NRSC, Dr. V V Rao, Deputy Director, RSA NRSC, colleagues of Geosciences and of NRSC, for their encouragement and help to carry out this study.
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Saha, R., Baranval, N.K., Das, I.C. et al. Application of Machine Learning and Geospatial Techniques for Groundwater Potential Mapping. J Indian Soc Remote Sens 50, 1995–2010 (2022). https://doi.org/10.1007/s12524-022-01582-z
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DOI: https://doi.org/10.1007/s12524-022-01582-z