Table · dataset · 2025
i08 Delta InChannel Islands
Listed in California Open Data
Data contains historical polygons of in-channel islands within the Sacramento San Joaquin Delta.
Description
Data consists of merged datasets from 1929, 1940, 1949, 1952, 1995, 2002, and 2017. The 2017 polygons are digitized from the 2017 Delta LiDAR imagery by the Division of Engineering, Geomatics Branch, Geospatial Data Support Section.
The older pre-2017 polygons were all digitized by staff in the Delta Levees Program. Data can be queried for a single year or date range using the 'Year' field. Historical data was compiled and merged from datasets provided by the Delta Levees program.
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Data coverage differs between years. Absences or gaps in historical data may occur. Older acquisitions generally have a smaller footprint than recent imagery acquisitions.
The 2017 in-channel islands cover the Legal Delta, and also include Chipps Island.
Links
Get the data
- Publisher page gis.data.cnra.ca.gov/datasets/24aa90a587c348608d5748d048471aab_0 ↗
documentation · download · from data ca gov
- ArcGIS GeoService utility.arcgis.com/usrsvcs/servers/24aa90a587c348608d5748d048471aab/rest/services… ↗
download · from data ca gov
- CSV gis.data.cnra.ca.gov/api/download/v1/items/24aa90a587c348608d5748d048471aab/csv?lay… ↗
download · from data ca gov
- Shapefile gis.data.cnra.ca.gov/api/download/v1/items/24aa90a587c348608d5748d048471aab/shapefi… ↗
download · from data ca gov
- GeoJSON gis.data.cnra.ca.gov/api/download/v1/items/24aa90a587c348608d5748d048471aab/geojson… ↗
download · from data ca gov
- KML gis.data.cnra.ca.gov/api/download/v1/items/24aa90a587c348608d5748d048471aab/kml?lay… ↗
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/i08-delta-inchannel-islands ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=714045bb-979b-4dd2-bc4b-712368a02… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources · Water
- From keywords
- Earth & Environmental Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | 714045bb-979b-4dd2-bc4b-712368a02ec4 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| 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 |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| 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 |