Hydrologists

Hydrologists spend their days investigating how water moves through the environment, from rainfall and snowmelt to underground aquifers and river systems. They collect water samples from streams, lakes, and wells, measure flow rates and water levels, and analyze the chemical composition of water sources. Much of their work involves fieldwork—wading into streams with monitoring equipment, installing gauges, or drilling test wells—though they also spend considerable time in offices analyzing data using specialized computer models and geographic information systems. They might study how drought affects groundwater supplies, predict flooding patterns, assess contamination from industrial sites, or help communities plan sustainable water use.