• Isotopes in hydrology
• The most commonly used isotopes
• Natural water cycle
• Schematic d H-2 - d O-18 diagramme
• Surface water infiltration into groundwater
• Dynamicsof groundwater flow
• Isotopic contributions to the assessment of (ground)water resources
• Knowledge of the basic data
• Correlation of O-18 and H-2 data
• Correlation between Deuterium excess and electrical conductivity
• The Naggavagu river bed during the dry season
• O-18 data
• Irrigation in the alluvium North Patancheru
• Principles of operation
• Flowmeter logging
• Ramachandrapuram 1
• Ramachandrapuram 2
• Ramachandrapuram 3
• Conclusions