Over the last decade, there has been a revolution in our ability to measure geohydrology at the global scale. There is a need now to compile the recent advances into a treatise on global geohydrology assessment. Global Geohydrology: Advances in Large-Scale Surface and Groundwater Characterization provides the platform to compare and contrast recently developed capabilities for geohydrology characterization including both surface and groundwater across the globe. The recent advances in remote sensing have enabled large scale measurements of water volume/mass, evapotranspiration, and various water storage and flow properties, which have enhanced and unified our ability to assess the global surface and groundwater resources, uses, and flow dynamics. These methods are in addition to compilation of global water isotope signatures and other databases that support global hydrologic assessment and characterization. These advances enable surface water and more importantly groundwater, which has added inaccessibility data limitations, assessments to be coupled with atmospheric analysis to examine global water for water resource assessments. This becomes more critical going forward as potential climate change issues associated with large scale hydrologic features, including tropical storms, desertification, and population-change impacts on water supply and demand are assessed. This book provides important information for graduate students, researchers and lecturers in hydrology, Civil Engineering, Geology, Environmental Science, Natural Resources, Environmental Engineering.