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Water holds significance not only for society but also for crucial Earth system processes like weather, climate, and biogeochemical cycles. Advancements in remote sensing technology have demonstrated the ability to study water resources and hydrologic processes from a spatial perspective. On a global scale, approximately 30% of the Earth’s freshwater resources can be attributed to groundwater, making it the source of 96% of all available liquid freshwater. The storage of groundwater, which is part of terrestrial water storage (TWS), is influenced by both human-induced activities and climate-related factors. Terrestrial water storage (TWS) encompasses all forms of water present both above and below the Earth's surface, including soil moisture, snow, ice, water stored in vegetation canopies, groundwater, and other similar reservoirs. The Gravity Recovery and Climate Experiment (GRACE) missions employ satellite–based gravimetry to precisely estimate the Terrestrial Water Storage Anomaly. The GRCAE TWSA values show very high negative correlation to groundwater storages, almost all of India showing depletion, highest being in Haryana while recharge happening in parts of the Deccan Plateau highest in Madhya Pradesh. Assessing the TWSA enable us to comprehend this intricate system and aid in resolving water resource and environmental management challenges.

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Assessment of Basin Hydrological Phenomena Using State-of-the-Art Methods and In-situ Field Measurements

  • 章节

  • 发表日期：

    2025年

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  • Asmit Roy Burman

摘要

Water holds significance not only for society but also for crucial Earth system processes like weather, climate, and biogeochemical cycles. Advancements in remote sensing technology have demonstrated the ability to study water resources and hydrologic processes from a spatial perspective. On a global scale, approximately 30% of the Earth’s freshwater resources can be attributed to groundwater, making it the source of 96% of all available liquid freshwater. The storage of groundwater, which is part of terrestrial water storage (TWS), is influenced by both human-induced activities and climate-related factors. Terrestrial water storage (TWS) encompasses all forms of water present both above and below the Earth's surface, including soil moisture, snow, ice, water stored in vegetation canopies, groundwater, and other similar reservoirs. The Gravity Recovery and Climate Experiment (GRACE) missions employ satellite–based gravimetry to precisely estimate the Terrestrial Water Storage Anomaly. The GRCAE TWSA values show very high negative correlation to groundwater storages, almost all of India showing depletion, highest being in Haryana while recharge happening in parts of the Deccan Plateau highest in Madhya Pradesh. Assessing the TWSA enable us to comprehend this intricate system and aid in resolving water resource and environmental management challenges.