Terminology: hydrologic cycle, vapor, evaporation, transpiration, condensation,
precipitation, surface runoff, infiltration, groundwater flow, base level, interception,
soil moisture or capillary water, humidity, absolute humidity, saturation humidity,
relative humidity, sublimation, dew point, orographic effect, rainshadow desert,
subtropical latitudes, potential evapotranspiration, actual evapotranspiration,
condensation nuclei