Table · dataset · 2026
Historical Leveling Subsidence Data
Listed in California Open Data
Historical geodetic leveling library for California’s Central Valley that compiles adjusted benchmark heights from leveling performed by the U.S. Geological Survey (USGS), U.S. Coast and Geodetic Survey/National Geodetic Survey (NGS), the State of California, and other agencies.
Description
The library preserves repeated adjusted heights for individual benchmark monuments through time and provides a consistent dataset for evaluating historical land-surface elevation change across the Central Valley.
Links
Get the data
Where it is published
- California Open Data dataset page data.ca.gov/dataset/historical-leveling-subsidence-data ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=e14357c7-3d30-44f7-a287-06e7a622d… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources · Water
- From keywords
- Earth & Environmental Science
- Inferred from text
- Geology 73% · Sequencing 65%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | e14357c7-3d30-44f7-a287-06e7a622d7c3 | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3705 | enrichment · data ca gov | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:earth-environmental | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[modality].local:modality:sequencing | enrichment · data ca gov | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[topic].ckan_group:data_ca_gov:natural-resources | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:water | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |