Reflecting the current focus of hydrological sciences today, this color book discusses interdisciplinary issues in water resources research and remote sensing technology. It presents an exquisite arrangement of sensors, platforms, and problem-oriented features and covers all components of the hydrologic cycle, such as precipitation, soil moisture, evaporation, transpiration, lake and reservoir levels, terrestrial water storage, river discharge, and snow pack. Taking a multiscale approach, it addresses future concerns of hydrologic remote sensing under global change, including population growth, economic development and urbanization, and environmental degradation.