File Geodatabase Feature Class
Tags
Rio Grande Basin, Surface Water, Irrigated Parcels, Div3, Irrigated Acreage, 2020, Ground Water, Irrigation, Colorado
Input for RGDSS.
Spatial and informational database of irrigated parcels in Div 3 of the Rio Grande Basin for the 2020 growing season in support of the RGDSS.
RGDSS funded by Colorado Water Conservation Board (CWCB) and Colorado Division of Water Resources (CDWR). Input to dataset from various water users including water commissioners, ditch companies, water management groups, and individual farmers.
There are no access and use limitations for this item.
Extent
| West | -107.066990 | East | -105.252705 |
| North | 38.396930 | South | 36.970381 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
M-F 8-5
Contact AskDWR c/o GIS Program Manager at askdwr@state.co.us with questions regarding this dataset.
RGDSS funded by Colorado Water Conservation Board (CWCB) and Colorado Division of Water Resources (CDWR). Input to dataset from various water users including water commissioners, ditch companies, water management groups, and individual farmers.
Irrigated Lands in the Rio Grande basin for the 2020 growing season.
M-F 8-5
Contact AskDWR c/o GIS Program Manager at askdwr@state.co.us with questions regarding this dataset.
CWCB and CDWR provide no warranty to the users of this information as to the accuracy, reliability or completeness of the data. Information is subject to change according to additional input during subsequent phases of the RGDSS project. The user assumes all responsibility for the use of this data.
The Colorado Division of Water Resources (CDWR) develops its irrigated lands data for tracking place of use of irrigation water, modeling consumptive use, and compact reporting. In developing the data, a number of data sources are used to detect effective irrigation and assign crop types for potentially irrigated lands. The development of the data starts with the master irrigated parcel coverage. CDWR has mapped permitted or decreed place of use for many of the water rights in Colorado. This coverage attempts to delineate the maximum extent of possible irrigation for a given water right or permitted place of use. Before the creation of any temporal datasets, the data is updated using the latest aerial photography, to reflect the most recent on the ground conditions. A copy of the updated master file is made and this data is used to produce the temporal irrigated lands dataset for a given irrigation year. In order to determine effective irrigation extents and crop type for the temporal irrigated lands data, CDWR uses a combination raster data from the Landsat program and the USDA’s Cropland Data Layer (CDL). Landsat data is used to detect and define extents of irrigation and the USDA’s CDL data is used to assign crop types to irrigated parcels. We collect and process the Landsat data by scene beginning with scenes dated from roughly May 1st through October 15th. Each of these individual scenes are processed into a Normalized Difference Vegetation Index (NDVI). These individual NDVI scenes are then stacked to produce a max NDVI layer for the entire growing season. This max layer represents the highest NDVI value for a given location during the growing season. This approach allows us to capture effective irrigation at any point during the growing season. The values for this max layer is also scaled from 1-200 with a value of 150 being what CDWR considers to be the irrigation threshold. CDWR uses the CDL to crop type irrigated parcels by extracting the majority crop and percent majority crop for a given parcel. The subsequent analysis results in the delineation of effectively irrigated, crop typed parcels for a given irrigation year.
M-F 8-5
Contact AskDWR c/o GIS Program Manager at askdwr@state.co.us with questions regarding this dataset.
Irrigated Lands
CDWR
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Feature geometry.
Esri
Coordinates defining the features.
Year of Irrigated Lands Study Period
CDWR
Water Division
CDWR
Water District
CDWR
Unique ID of Every Parcel in Dataset
CDWR
Relational ID to used to relate irrigation sources to irrigated lands.
CDWR
Crop Type of Irrigated Parcel
CDWR
ALFALFA BARLEY BLUEGRASS CORN CORN_GRAIN CORN_SILAGE COTTON COVER_CROP DRY_BEANS GRAPES GRASS_PASTURE NEW_ALFALFA NO_CROP ORCHARD_WITH_COVER ORCHARD_WO_COVER POTATOES SMALL_GRAINS SNAP_BEANS SOD_FARM SORGHUM_GRAIN SPRING_GRAIN SUGAR_BEETS SUNFLOWER SWEET_CORN VEGETABLES WHEAT WHEAT_FALL WHEAT_SPRING
Crop Type Information Source
CDWR
Designates whether crop is perennial.
CDWR
Irrigation Method
CDWR
Acreage of Irrigated Lands
CDWR
Description of Water Source Use; B=Both Surface Water and Groundwater, G=Groundwater Only, S=Surface Water Only
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Water District ID (WDID) of Surface Water Irrigation Source
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Type of Ground Water Irrigation Source ID.
CDWR
Unique ID of Groundwater Irrigation Source.
CDWR
Defines how groundwater irrigation source was applied to irrigated land.
CDWR
Comments
CDWR
Positive real numbers that are automatically generated.
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
Code which shows how parcel was irrigated during temporal growing season.
CDWR
M-F 8-5
Contact AskDWR c/o GIS Program Manager at askdwr@state.co.us with questions regarding this dataset.
CWCB and CDWR provide no warranty to the users of this information as to the accuracy, reliability or completeness of the data. Information is subject to change according to additional input during subsequent phases of the RGDSS project. The user assumes all responsibility for the use of this data.