* Hydrologist: This is the most common term, encompassing the study of water in all its forms (liquid, solid, gas) and its movement through the environment.
* Hydrogeologist: These scientists specialize in groundwater and how it interacts with surface water.
* Oceanographer: They study the oceans, including water movement, chemistry, and marine life.
* Climatologist: These scientists study the climate system, including the role of water in weather patterns and long-term climate change.
* Meteorologist: They focus on the study of the atmosphere, including precipitation and its impact on the water cycle.
* Environmental Engineer: They use scientific principles to solve environmental problems related to water quality and management.
So, the best way to describe a scientist who studies water and its cycle depends on their specific area of expertise.
