Hydroclimatology – Definition

“Hydroclimatology provides a systematic structure for analyzing how the climate system causes time and space variations (both global and local) in the hydrologic cycle. Changes in the relationship between the climate system and the hydrologic cycle underlie floods, drought and possible future influences of global warming on water resources.”
Hydroclimatology Perspectives and Applications

“Hydroclimatology was defined by Walter Langbein as the ‘study of the influence of climate upon the waters of the land’. It includes hydrometeorology as well as the surface and near-surface water processes of evaporation, runoff, groundwater recharge and interception.”
Encyclopedia of Hydrology and Water Resources

“Hydroclimatology is the study of moisture in the atmosphere and water in and on the surface of the earth in all its various forms. Thus, hydroclimatology is that area of research where the fields of climatology and hydrology intersect. It includes fluxes of moisture between the atmosphere and the surface (i.e., precipitation and evapotranspiration), atmospheric water vapor and its circulation both horizontally and vertically, water stored on the land (snow cover, glaciers, lakes, and streams) and on the oceans (sea ice), water stored in the soil (soil moisture), and water used by vegetation.”
Remote Sensing in Hydroclimatology: An Introduction

“Climate science applied to freshwater reservoirs – surface hydrology, groundwater, and the cryosphere – and the resulting impact on society is a primary component of the growing field of hydroclimatology.”
Editorial Hydroclimatology

“Hydroclimatology is the interaction between climate and hydrology, e.g precipitation, evapotranspiration, groundwater, rivers, lakes, water balance, energy balance and describes the energy and moisture exchanges between atmosphere, surface, and subsurface.”
University of Waterloo: Geography 209, Lecture 1 Hydroclimatology