PROVISIONAL - 2022 Statewide Crop Mapping GIS Shapefile
Provisional Data Use Disclaimer: This is a provisional release of statewide land use data for Water Year (WY) 2022. The provisional data is made available to provide immediate access for the convenience of interested persons. Importantly, land use classifications and field boundaries are not definitive and do not establish legal rights or define legal boundaries. While the Department believes the data to be reliable, the data is provisional and human or mechanical error remains a possibility. Therefore, the Department does not guarantee the accuracy, completeness, or timeliness of the information. Neither DWR nor any of the sources of the information shall be responsible for any errors or omissions, or for the use or results obtained from the use of this information.
The Department of Water Resources (DWR) Land Use Program is releasing the statewide land use data for Water Year (WY) 2022 as provisional, based on requests by data users and partner agencies. This provisional release is part of DWR’s ongoing commitment to provide comprehensive, accurate, and more frequent statewide land use data through remote sensing and field surveys for the California Water Plan, Groundwater Sustainability Agencies (GSAs), and other users throughout the state. Unlike all pre 2021 land use data releases, the 2022 provisional release is intended to get land use information out to users quickly, and the data has not been carefully reviewed or edited. The final and official version of the WY 2022 land use dataset is planned for release by the first quarter of 2025.
Provisional data release highlights:
• New data field “DataStatus” is filled out with “Provisional” to indicate that the data is provisional. When the final version is released, this filled will be populated with “Final”.
• Metadata has been updated to indicate “provisional” in the following sections: Title, Tags, Summary, Description, and Distribution Format Version.
• Statewide land use classification was completed at both crop class and subclass levels, mapping a total of 478,059 fields and 15,649,733 acres. This total mapped acreage includes multi-cropping, urban acreage, golf courses, and some non-irrigated cropland.
• Accuracy statistics were calculated independently for each region as well as each level of legend. The overall accuracy for WY 2022 crop mapping statewide,
as reported by Land IQ, was 98% at the DWR Crop Class legend level and 97% at the Subclass legend level.
• The Subclass land use legend was expanded and refined to account for land use conditions more accurately. An irrigation type of “Not Irrigated” was included in the Mixed Pasture class to describe the variability in condition of Mixed Pasture.
• Reference (ground truth) data collection routes were expanded in WY 2022 to collect data in all 10 California hydrologic regions, enabling Land IQ to perform accuracy assessments in each of the hydrologic regions for the first time.
• A change to the methodology for assessing multi-cropping was implemented in WY 2022. All fields were reviewed for multi-cropping and percent cover was calculated on resulting fields, improving the capture of multi-cropped fields statewide.
Source: Statewide Crop Mapping
About this Resource
| Last updated | unknown |
|---|---|
| Created | unknown |
| Name | PROVISIONAL - 2022 Statewide Crop Mapping GIS Shapefile |
| Format | Zip File |
| License | License not specified |
| Created | 8 months ago |
| Media type | application/zip |
| has views | False |
| id | f4715f76-e263-4e38-89d6-1e21a884acb4 |
| metadata modified | 8 months ago |
| package id | d87a7f62-e44d-428a-9db4-9467e8478d0f |
| position | 1 |
| state | active |