What does hydrologist mean?
A hydrologist is a scientist who studies water and its role in the natural environment. This can include examining rainfall, rivers, lakes, groundwater, soil moisture, water quality, flooding, drought, and the movement of water through the wider water cycle. Hydrologists collect and analyze measurements, use models to predict changes, and often provide evidence for decisions about reservoirs, drainage, irrigation, flood management, and environmental conservation. Their work can involve field measurements, satellite data, laboratory analysis, and computer simulations. The profession is especially important as rainfall patterns, water availability, and the frequency of floods and droughts change. Although hydrology also includes the study of water itself, a hydrologist is specifically a person trained in that scientific discipline.
nounA scientist who studies hydrology, the scientific study of water in the environment, including its movement, distribution, quality, and relationship with land and ecosystems.
- A person who studies the scientific properties, movement, distribution, and behavior of water in the environment.
"The hydrologist warned that unusually low rainfall could reduce reservoir levels throughout the region."
"After reviewing rainfall and groundwater data, the hydrologist published a revised flood-risk assessment."
"Local farmers consulted a hydrologist to determine how changing irrigation patterns were affecting the soil."
The regular plural is used when referring to multiple scientists.
"Hydrologists from several countries collaborated on the study."
A hydrologist studies the entire life of water: where it comes from, where it goes, and what it does to the landscape.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hydrologist come from?
The word was formed in the early 19th century from the Greek hydro-, meaning “water,” and -logist, meaning “a person who studies or is a specialist in a particular subject.” Its components also underlie related English words such as hydraulic, hydrogen, hydrometer, and hydrant. The suffix was chosen to parallel related scientific terms such as geologist and zoologist.
Related word forms
How hydrologist is actually used
The term is professional and scientific. In general usage, a hydrologist may also be informally described as a water scientist, but that expression can be less precise because it may include specialists in other aspects of water research.