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Overview
Hydrologist work is about studying water quality, water distribution and water supply from rivers, streams, springs and watersheds so water resources can be understood and used sustainably.
In job descriptions, look for hydrology, field sampling, environmental data, statistical analysis, scientific modelling, water policy, watershed development, pollution prevention and collaboration on urban or regional water supply.
Explore this occupation
Open in Job ExplorerWhat the work can involve
Hydrologists study how water moves, where it is available and how its quality affects people, ecosystems and planning. The work can combine field sampling, data analysis, modelling, scientific literature and advice for water supply or environmental decisions.
Skills and specializations
Important skills include hydrology, statistics, scientific modelling, environmental data, water policy and watershed development. Practical roles may add sampling, pollution prevention, erosion control, flood remediation or water purification methods. For a hydrologist, water quality, supply and rivers stay central.
Salary context
Pay comparison should consider the scale of the water system and the consequences of the analysis. Roles advising on urban supply, environmental policy, flood strategy, compliance or cross-disciplinary research usually carry more responsibility than narrow data collection.
Career paths
Career paths can move toward water resource planning, environmental consulting, research, flood or drought analysis, watershed management, policy support or project leadership. Field credibility and clear modelling assumptions matter. The hydrologist still has to connect water observations, quality evidence, models and supply decisions.
Good to know
Read vacancies for the type of water work: rivers, groundwater, urban supply, wastewater, coastal areas, watersheds or flood risk. Check whether the role is mainly field sampling, modelling, policy advice, remediation or scientific publication. The hydrologist still has to connect water observations, quality evidence, models and supply decisions.
Editorial note
This guide gives editorial career context for hydrologist work. It is not official labour-market statistics or salary data.
Map overview
Click the map to search for hydrologist jobs.
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O*NET relationships
See occupations connected to this ESCO occupation in the official O*NET–ESCO mapping. The relationship type comes from the source and is not a ranking or recommendation.
O*NET relationships: 2
Hydrologic Technicians
19-4044.00
Close relationship
The occupations are closely related, but the official mapping does not treat them as exact equivalents.
Open in O*NETHydrologists
19-2043.00
Exact relationship
The official mapping treats the O*NET and ESCO occupations as closely equivalent.
Open in O*NETSource and method
These relationships come from the official European Commission O*NET–ESCO crosswalk.
Relationship direction: O*NET occupation to ESCO occupation.
Several O*NET occupations can point to the same ESCO occupation, and one O*NET occupation can point to several ESCO occupations.
AltoTrail preserves the source relationship type. The order is technical and does not show which occupation is best, most relevant or recommended.
AltoTrail validates and presents the source relationships without adding ranking or recommendation semantics.
Alternative labels
Occupation group
geologist (2114.1)
Source facts
| ESCO URI | http://data.europa.eu/esco/occupation/55167849-82cf-484e-b818-fa702a4e69e9 |
|---|---|
| ESCO code | 2114.1.5 |
| ISCO group | 2114 |
| Concept type | Occupation |