noun-modifying (irregular)
hydrological
Technical prenominal adjective used in fields such as geography, meteorology, and civil engineering. Often appears in compounds like 水文学 (hydrology).
See also: 水文学
We analyze hydrological data to make flood predictions.
The hydrological environment of this region has changed significantly in recent years.
hydrology
hydrogeology
Compound of 水 (water) and 文 (pattern, writing, here likely 'phenomena' or 'study'), forming a technical term for water-related phenomena.