This book covers aspects of water science research, including hydrology, water movement studies; and oceanography. Within every one of these disciplines, the physical, biological, and chemical cycles of water are additionally divided into study areas. Water front regions globally are densely populated with vibrant ecological diversity and socio-economic resources. Earth’s water cycle meagerly affected due to climate change of the Earth;s atmosphere, and because of such minute change, ecological condition are little beat disturbed. These systems offer significant services, including flood protection, carbon, and water storage, nutrient cycling, coastline stabilization, and wildlife reserve. Determining the interaction between maritime and hydro climate factors, and pointers between natural and human systems is significant for water resource management and risk expectation. The book investigates the hydrology of wetlands, deltas, shallow oceans, and estuaries and invites interdisciplinary entries that explore the reaction of waterfront systems to changing hydrologic conditions and oceanic elements. This provides an opportunity to improve waterway systems from disasters like flooding, considering this is an all-encompassing perspective on hydrological and oceanic involving different regions. Subjects of interest include the movement and exchange of earth and groundwater in watersheds; estuarine components and hydrologic management on residue supply and salinity intermission, ecosystem activities and morphologic developments under ocean level rise; modernization and watershed management; flowing/compounding impacts of hydroclimate excesses like tropical storms, atmospheric rivers and dry seasons.