Hydrologists
Life, Physical, and Social Science Occupations- O*NET-SOC code
- 19-2043.00
Research the distribution, circulation, and physical properties of underground and surface waters; and study the form and intensity of precipitation and its rate of infiltration into the soil, movement through the earth, and return to the ocean and atmosphere.
AI exposure
- Data source: BLSPublished: 2026-08
High· relative
LowFour relative bandsVery highGroup-level value
Scale, basis and source
Four relative bands (Low / Moderate / High / Very high)
831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band
- Data source: AnthropicPublished: 2026-03
0.075
0.000Range of values carried here0.745Scale, basis and source
Observed exposure index, 0–1 as published
Mapped onto O*NET tasks
Published per SOC 2018 occupation; every O*NET occupation with the same SOC 2018 code carries this value
- Data source: ILOPublished: 2025
0.36
0.09Range of values carried here0.70Group-level value
Scale, basis and source
Generative AI exposure index, 0–1 as published
Published per ISCO-08 unit group. Linked to this occupation, wholly or in part, by applying U.S. Bureau of Labor Statistics crosswalks (ISCO-08 to 2010 SOC, 2010 SOC to 2018 SOC) as published
What kind of figure this source publishes
The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.
AI exposure (OpenAI rubric)
25 rated tasks · 22 tasks with β ≥ 0.5 (88.0%)
β = direct exposure (E1) + 0.5 × exposure when tools are available (E2), per the source repository's definition.
- Source unit: O*NET 27.2 tasks → O*NET 31.0 occupation code
- 1 rated task is not in the O*NET 31.0 task list; its score is kept as published for O*NET 27.2.
- Source
- OpenAI "GPTs are GPTs" exposure rubric
- Release
- gh-main-0471612
- License
- MIT License, Copyright (c) 2024 OpenAI
Tasks
Task statements from the O*NET® 31.0 Database, core tasks first.
| Task | Type | β (OpenAI) |
|---|---|---|
| Study and document quantities, distribution, disposition, and development of underground and surface waters. | Core | 0.5 |
| Coordinate and supervise the work of professional and technical staff, including research assistants, technologists, and technicians. | Core | 0.5 |
| Prepare hydrogeologic evaluations of known or suspected hazardous waste sites and land treatment and feedlot facilities. | Core | 0.5 |
| Design and conduct scientific hydrogeological investigations to ensure that accurate and appropriate information is available for use in water resource management decisions. | Core | 0.5 |
| Study public water supply issues, including flood and drought risks, water quality, wastewater, and impacts on wetland habitats. | Core | 0.5 |
| Collect and analyze water samples as part of field investigations or to validate data from automatic monitors. | Core | 0.5 |
| Apply research findings to help minimize the environmental impacts of pollution, waterborne diseases, erosion, and sedimentation. | Core | 0.5 |
| Measure and graph phenomena such as lake levels, stream flows, and changes in water volumes. | Core | 0.5 |
| Investigate complaints or conflicts related to the alteration of public waters, gathering information, recommending alternatives, informing participants of progress, and preparing draft orders. | Core | 0.5 |
| Answer questions and provide technical assistance and information to contractors or the public regarding issues such as well drilling, code requirements, hydrology, and geology. | Core | 0.5 |
| Develop or modify methods for conducting hydrologic studies. | Core | 1 |
| Install, maintain, and calibrate instruments such as those that monitor water levels, rainfall, and sediments. | Core | 0 |
| Evaluate data and provide recommendations regarding the feasibility of municipal projects, such as hydroelectric power plants, irrigation systems, flood warning systems, and waste treatment facilities. | Core | 0.5 |
| Conduct short- and long-term climate assessments and study storm occurrences. | Core | 0.5 |
| Study and analyze the physical aspects of the earth in terms of hydrological components, including atmosphere, hydrosphere, and interior structure. | Core | 0.5 |
| Conduct research and communicate information to promote the conservation and preservation of water resources. | Core | 0.5 |
| Review applications for site plans and permits and recommend approval, denial, modification, or further investigative action. | Core | 0.5 |
| Evaluate research data in terms of its impact on issues such as soil and water conservation, flood control planning, and water supply forecasting. | Core | 0.5 |
| Investigate properties, origins, and activities of glaciers, ice, snow, and permafrost. | Core | 0.5 |
| Develop computer models for hydrologic predictions. | Core | 1 |
| Prepare reports or presentations describing research results, using illustrations, maps, appendices, and other information. | Core | not rated |
| Design civil works associated with hydrographic activities and supervise their construction, installation, and maintenance. | Supplemental | 0.5 |
| Monitor the work of well contractors, exploratory borers, and engineers and enforce rules regarding their activities. | Supplemental | 0 |
| Administer programs designed to ensure the proper sealing of abandoned wells. | Supplemental | 0 |
| Compile and evaluate hydrologic information to prepare navigational charts and maps and to predict atmospheric conditions. | Supplemental | 0.5 |
Occupation information
Sources and attribution
This page includes information from the O*NET® 31.0 Database (https://www.onetcenter.org/database.html) by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/). O*NET® is a trademark of USDOL/ETA. AI Changing Work has modified all or some of this information: the O*NET-SOC code, title and task statements are reproduced in English without change; task-type labels are shown in the page's language and tasks are listed core first; any Korean occupation title shown on the Korean-language page is AI Changing Work's translation; any KSCO-8 unit groups linked to this occupation were paired with it by AI Changing Work's judgment, and the relation labels and statuses are AI Changing Work's additions. USDOL/ETA has not approved, endorsed, or tested these modifications.
Any AI exposure figures on this page are published by third parties, not by AI Changing Work, and none is part of the O*NET information. OpenAI publishes task-level scores (MIT License) for O*NET 27.2 task statements; each is shown next to the O*NET 31.0 task statement with the same task ID, whose wording can differ from the 27.2 statement that was scored. OpenAI also publishes occupation-level scores for O*NET-SOC codes in the same release, and any such score is shown on the O*NET occupation with the same code. Anthropic publishes an observed exposure index in the Anthropic Economic Index (CC-BY), and the U.S. Bureau of Labor Statistics publishes relative AI exposure categories (public domain); both are published per SOC code, and each value is shown on every O*NET occupation with that code. The International Labour Organization publishes a generative AI exposure index in ILO Working Paper 140 (CC BY 4.0) for ISCO-08 unit groups; AI Changing Work links those groups to O*NET occupations by applying the U.S. Bureau of Labor Statistics ISCO-08 to 2010 SOC and 2010 SOC to 2018 SOC crosswalks as published, without case-by-case selection, and these crosswalks match many groups only in part. Where several unit groups are linked, each group's published value is listed, and any summary shows only the lowest and highest of those values with the number of groups; no exposure figure is averaged or recalculated. Any employment figures are published by the U.S. Bureau of Labor Statistics for the SOC group containing this occupation. Each source is credited where its figures are shown.
O*NET OnLine: 19-2043.00 Hydrologists
KSCO 코드·명칭: 한국표준직업분류(제8차 개정) — 통계청 고시 제2024-328호 (2024-07-01 고시, 2025-01-01 시행). 저작권법 제7조 제2호의 고시 항목이다. 명칭 표기(가운뎃점·띄어쓰기)는 해설서 2차 정오 반영판의 표기를 따랐으며, 고시 항목표와는 18개 명칭에서 가운뎃점 글리프나 띄어쓰기만 다르다. 통계청은 2025년 10월 국가데이터처로 개편되었다. 이 페이지의 KSCO 연결은 통계청·국가데이터처의 공식 연계표가 아니다.