"Hydrology is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and drainage basin sustainability."
The study of water in the Earth system, including its distribution, movement, and quality.
Water cycle: The continuous process of water evaporating, condensing, and precipitation.
Precipitation: Rain, snow or other forms of moisture that fall from the atmosphere onto the earth's surface.
Evapotranspiration: The process of water moving from the soil, through plants, and back into the atmosphere as water vapor.
Infiltration: The process of water seeping into the soil as it moves downwards through the soil matrix.
Runoff: The movement of water across the surface of the ground and into streams, rivers and lakes.
Groundwater: The water that is present below the ground surface in soil pore spaces and in the fractures of rock formations.
Groundwater recharge: The process of water seeping into the ground and replenishing the supplies of groundwater.
Aquifer: A layer of rock, sand or gravel that contains and transmits groundwater.
Water balance: The accounting of all the inputs and outputs of water in a particular hydrological system.
Hydrologic modeling: The use of mathematical models to simulate and predict the movement of water through a particular hydrological system.
Floods: A natural event that occurs when water overflows from a river, lake, or other body of water, causing damage to surrounding areas.
Droughts: A prolonged period of abnormally low rainfall, resulting in a shortage of water supply.
Water quality: The chemical, physical, and biological characteristics of water in relation to its suitability for a particular use.
Water management: The practice of managing water resources in a sustainable manner, taking into account the competing demands of various users.
Climate change: The gradual increase in global temperatures due to the release of greenhouse gases into the atmosphere.
Remote sensing: The gathering of data from a distance, such as from satellites, to gather information about the environment.
"Hydrology subdivides into surface water hydrology, groundwater hydrology (hydrogeology), and marine hydrology."
"Domains of hydrology include hydrometeorology, surface hydrology, hydrogeology, drainage-basin management, and water quality."
"A practitioner of hydrology is called a hydrologist. Hydrologists are scientists studying earth or environmental science, civil or environmental engineering, and physical geography."
"Using various analytical methods and scientific techniques, they collect and analyze data to help solve water-related problems such as environmental preservation, natural disasters, and water management."
"...such as environmental preservation, natural disasters, and water management."
"Oceanography and meteorology are not included because water is only one of many important aspects within those fields."
"Hydrological research can inform environmental engineering..."
"Hydrological research can inform ... policy."
"Hydrological research can inform ... planning."
"Hydrologists are scientists studying earth or environmental science, civil or environmental engineering, and physical geography."
"...including the water cycle, water resources, and drainage basin sustainability."
"...help solve water-related problems such as environmental preservation..."
"...help solve water-related problems such as ... natural disasters..."
"...help solve water-related problems such as ... water management."
"Domains of hydrology include hydrometeorology..."
"Domains of hydrology include ... surface hydrology..."
"Hydrology subdivides into surface water hydrology, groundwater hydrology (hydrogeology)..."
"Domains of hydrology include ... drainage-basin management..."
"Domains of hydrology include ... water quality."