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Encompassing Mid-Gangetic Plain, state Bihar has abundant water resources, both the ground water and surface water resources. About 90% of the area of the state is occupied with rich alluvial deposits with high yielding aquifers sustaining livelihood of millions of populations and river ecosystem. Being an agrarian economy, Bihar is highly dependent on rainfall as well as availability of ground and surface water resources which is linked with ongoing climate change. Moreover, the high dependency by the growing population coupled with agricultural and industrial development, imposed severe stress to the freshwater resource of the state. The present study is using an integrated approach of hydro chemical, isotopic and remote sensing to assess the water resources and other hydrometeorological variables in the area. It was observed that both surface and groundwater are polluted at few locations. Isotopic analysis suggests surface water is admixture of glacier melt and precipitation. Also, it was observed that land surface temperature is increasing in the basin which is showing an impact on vegetation and moisture in the basin.

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Assessment of Hydro-Meteorological Variables in Gandak River Basin with an Integrated Approach for Climate Resilient Sustainable Water Resource Management

  • 章节

  • 发表日期：

    2026年

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  • Rina Kumari,
  • Ujjawal Kumar,
  • Nang Swatie Manpoong,
  • Virendra Padhya

摘要

Encompassing Mid-Gangetic Plain, state Bihar has abundant water resources, both the ground water and surface water resources. About 90% of the area of the state is occupied with rich alluvial deposits with high yielding aquifers sustaining livelihood of millions of populations and river ecosystem. Being an agrarian economy, Bihar is highly dependent on rainfall as well as availability of ground and surface water resources which is linked with ongoing climate change. Moreover, the high dependency by the growing population coupled with agricultural and industrial development, imposed severe stress to the freshwater resource of the state. The present study is using an integrated approach of hydro chemical, isotopic and remote sensing to assess the water resources and other hydrometeorological variables in the area. It was observed that both surface and groundwater are polluted at few locations. Isotopic analysis suggests surface water is admixture of glacier melt and precipitation. Also, it was observed that land surface temperature is increasing in the basin which is showing an impact on vegetation and moisture in the basin.