20221220
10341500
1.0
FALSE
i15_LandUse_Imperial1997
-12927071.721000
-12732254.659800
3845641.353900
3961864.629600
1
002
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>
20240102
14404400
20240102
14404400
FGDC
150000000
5000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Land Use Supervisor
California Department of Water Resources
Senior Environmental Scientist
PO Box 942836
Sacramento
CA
94236-0001
US
Landuse@water.ca.gov
ArcGIS Metadata
1.0
i15_LandUse_Imperial1997
2022-11-01
20001205
California Department of Water Resources
vector digital data
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The 1997 Imperial County land use survey data set was developed by DWR through its Division of Planning and Local Assistance (DPLA). The data was gathered using aerial photography and extensive field visits, the land use boundaries and attributes were digitized, and the resultant data went through standard quality control procedures before finalizing. The land uses that were gathered were detailed agricultural land uses, and lesser detailed urban and native vegetation land uses. The data was gathered and digitized by staff of DWR’s Southern District. Quality control procedures were performed jointly by staff at DWR’s DPLA headquarters and Southern District. Important Points about Using this Data Set: 1. The land use boundaries were either hand drawn directly on USGS quad maps and then digitized, or digitized on-screen using corrected imagery. They were drawn to depict observable areas of the same land use. They were not drawn to represent legal parcel (ownership) boundaries, or meant to be used as parcel boundaries. 2. This survey was not a "snapshot" in time, but incorporated three field visits for agricultural areas. The original land use attributes of each delineated area (polygon) were based upon the surveyor’s observations in the field at those times, and are reflected in the quad DWG and shapefiles. For the survey-wide shapefile 97IM.shp, the attributes are the interpreted results. 3. If the data is to be brought into a GIS for analysis of cropped (or planted) acreage, two things must be understood: a. The acreage of each field delineated is the gross area of the field. The amount of actual planted and irrigated acreage will always be less than the gross acreage, because of ditches, farm roads, other roads, farmsteads, etc. Thus, a delineated corn field may have a GIS calculated acreage of 40 acres but will have a smaller cropped (or net) acreage, maybe 38 acres. b. Double and multicropping must be taken into account. A delineated field of 40 acres might have been cropped first with grain, then with corn, and coded as such. To estimate actual cropped acres, the two crops are added together (38 acres of grain and 38 acres of corn) which results in a total of 76 acres of net crop (or planted) acres. 4. Water source and irrigation method information were not collected for this survey. 5. Not all land use codes will be represented in the survey.</SPAN></P></DIV></DIV></DIV>
This data was developed to aid in DWR’s efforts to continually monitor land use for the main purpose of determining the amount of and changes in water use. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.4, dated September 2022. DWR makes no warranties or guarantees - either expressed or implied - as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to gis@water.ca.gov.
California Department of Water Resources, Division of Regional Assistance (DRA), Southern Regional Office, Land and Water Use and Conservation Section, and Water Use Efficiency Branch (Sacramento Headquarters).
Regional Office Land Use Manager
California Department of Water Resources,Southern Regional Office
Senior Environmental Scientist (Supervisor)
770 Fairmont Avenue
Glendale
CA
91203-1035
US
Landuse@water.ca.gov
Imperial County, California
ISO 19115 Topic Category
Planning, Cadastre, Farming
Survey
Land use
Agriculture
Boundaries
Ground truth
1997
Digital imagery
Vector
Raster
Image classification
California
Crop
Satellite imagery
Cadastral
Imagery
Imperial County
Global Positioning System (GPS)
Multispectral
Analysis
Survey year
Landsat
Irrigation
NDVI
Orthorectification
Urban
Residential
Orthoimagery
Native vegetation
Vineyard
biota
Survey
Land use
Agriculture
Boundaries
Ground truth
1997
Digital imagery
Vector
Raster
Image classification
California
Crop
Satellite imagery
Cadastral
Imagery
Imperial County
Global Positioning System (GPS)
Multispectral
Analysis
Survey year
Landsat
Irrigation
NDVI
Orthorectification
Urban
Residential
Orthoimagery
Native vegetation
Vineyard
Imperial County
California
Planning
Cadastre
DWR GIS Atlas
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN>The original source projection of the DWR GIS atlas dataset was NAD83. For copies of data in original projection, please contact DWR directly.</SPAN></P><P><SPAN>The attached information was developed by the State of California, Department of Water Resources, for uses beneficial to the State. The information is available upon request to interested members of the public. While the Department believes the information to be reliable and made efforts to assure its reliability at the time the information was compiled, the information is provided "as is". The Department is not responsible for the accuracy, completeness, quality or legal sufficiency of the information. Any expressed or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for purpose ARE SPECIFICALLY DISCLAIMED. Neither the Department nor the State of California shall be held liable for any direct, indirect, incidental, special, exemplary or consequential damages (including, but not limited to: procurement of substitute goods or services; loss of use, data or profits; or business interruption), however caused and on any theory of liability, whether in contract, strict liability or tort, arising in any way out of the use of this information. This disclaimer applies to use of the information alone and to its aggregate use with other information, data or programs. The State of California and the Department of Water Resources hereby specifically retain any intellectual property interest, including copyright that they may hold in the information provided, whether the information is in the form of data, files, text images, photography or maps. The Department requests that persons receiving and using this information not make it available to others for their re-use. Instead, interested third parties should be encouraged to contact the Department for copies, in order to ensure that the information is obtained from the source that developed it, that can provide the greatest degree of reliability. Please acknowledge the California Department of Water Resources as a source when DWR's data are used in the preparation of reports, publications, maps and other products.</SPAN></P></DIV></DIV></DIV>
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
None. Please see 'Distribution Info' for details.
true
-117.7671
-114.3421
34.2334
33.2347
Unknown
1997-01-01
1997-12-31
Land-Use Data Quality Control
This dataset is the final copy of 1997 Imperial County Land Use Survey. Digital surveys published on this site are designated as either ‘Final’, or ‘Provisional’, depending upon its status in a peer review process. Each survey has been zipped into a downloadable folder which contains the survey shapefile or feature class and other documentation that further explains how that specific survey was processed, and how the information is interpreted.
'Final' surveys are peer reviewed with extensive quality control methods to confirm that field polygon attributes reflect the most detailed and specific land-use classification available, using the standard DWR Land Use Legend specific to the survey year. Data sets are considered ‘final’ following the reconciliation of peer review comments and confirmation by the originating Regional Office. During final review, individual polygons are evaluated using a combination of aerial photointerpretation, satellite image multi-spectral data and time series analysis, comparison with other sources of land use data, and general knowledge of land use patterns at the local level.
'Provisional' data sets have been reviewed for conformance with DWR’s published data record format, and for general agreement with other sources of land use trends. Comments based on peer review findings may not be reconciled, and no significant edits or changes are made to the original survey data.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
1
-116.125861
-114.375790
33.500033
32.625055
Quality control procedures were performed jointly by staff at DWR’s DRA headquarters, and Southern Regional Office.
To ensure the integrity of geospatial data ArcGIS geoprocessing tools and topology rules were used to locate errors for quality control. Data are considered logically consistent.
The dataset contains land use data for the entire extent of Imperial County.
Locational Quality: Determined to be no better than 50 feet horizontal. This report is not being made by a licensed land surveyor, and is not analogous to a positional accuracy statement as stipulated in the California Public Resources Code. The land use boundaries were hand drawn onto USGS 1:24,000 quads, and digitized on a digitizing tablet using AUTOCAD. For those areas where the lines were drawn onto USGS quads and digitized, the accuracy is less than that of the quads.
California Department of Water Resources, Southern Regional Office
1997 Imperial Land Use Survey
IM97
2022-11-01
20001205
California Department of Water Resources
vector digital data
Dataset has been reviewed by Land Use staff at Sacramento headquarters
1997-01-01
1997-12-31
Projection Information:
The original dataset was reprojected to GCS NAD83 to conform with the rest of the Atlas land use dataset.
2000-12-05
Land Use Attributes:
All land use attributes were coded using the Department's Standard Land Use Legend dated July 1993 (93legend.pdf). The legend explains in detail how each delineated area is attributed in the field, and what the coding system is.
The actual land use code that is printed onto the field maps is different in arrangement than the codes that result from the digitizing process. The file attributes.pdf is a detailed explanation of the coding system used for both coding the field sheets, and the codes that are in digitized form in the database files associated with
the shapefiles.
2000-12-05
Data Development:
1. Aerial photography from the preceding urban and agricultural land use survey of Imperial County was utilized for this survey. This is a region of the State where field lines seldom change, and it was determined that the older photography would be acceptable. The photography was taken in 1984 and 1985. For areas where changes did occur, aerial photographs from the Imperial Irrigation District (date of the photography is not known) were utilized to delineate the field lines onto USGS 7 1/2 minute quadrangles (1:24,000 scale).
2. The USGS quadrangles with the delineations were taken to the field and virtually all the delineated areas were visited to positively identify the land use. For the agricultural areas, there were three site visits, to ensure that multicropping was captured. The site visits occurred in January and February 1997, May and June 1997, and September and October 1997. The appropriate land use codes were printed within each delineated area on the quadrangle.
3. The USGS quadrangles with the land use delineations were digitized, using a large digitizing tablet and AUTOCAD (using a standardized digitizing process) where both the linework and attributes were digitized.
4. After quality control/assurance procedures were completed on each file, the data was finalized. 5. The data was brought into a GIS for further processing. A county-wide data file was first created. This data file represented the actual observations from the site visits. Then that file was further processed to yield a final file which represented the interpreted land use for the year. The file 97IMUCF.XLS is an EXCEL file which includes the original land use observed attributes, and the interpreted land use attributes An explanation of interpreted land use: Our land use survey
digital processing system is designed to be able to summarize crop and other land use acreage. When performing multi-visit surveys, our observation attributes are just that, observations. A 40 acres field might have an alfalfa crop observed during all three site visits, and the resulting digitized attributes would
be a triple crop, alfalfa followed by alfalfa followed by alfalfa. Using our acreage summarizing system, it would summarize the crop acreage as 120 acres of alfalfa (40 acres of alfalfa, followed by another 40 acres of alfalfa, followed by another 40 acres of alfalfa). In reality, there was only one crop of alfalfa, seen three times. The interpreted land use for this field would be a single crop of alfalfa, and our acreage summarizing system would correctly result in 40 acres of alfalfa.
2000-12-05
Data Accuracy:
The land use boundaries were hand drawn onto USGS 1:24,000 quads, and digitized on a digitizing tablet using AUTOCAD. For those areas where the lines were drawn onto USGS quads and digitized, the accuracy is less than that of the quads (about 50 foot accuracy).
The land use attribute accuracy is very high, because almost every delineated field was visited in the field. The accuracy is less than 100 percent because some errors must have occurred. There are two possible sources of attribute errors which are:
1) Human error in the identification of crop types
2) Data entry errors
2000-12-05
i15_LandUse_Imperial1997
Table containing attribute information associated with the data set.
Producer defined
Feature Class
5731
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
10
0
Shape
Feature geometry.
ESRI
Coordinates defining the features.
Shape
Geometry
4
0
0
PERIMETER
Total perimeter length for each individual polygon, given in meters.
California Department of Water Resources
PERIMETER
Double
8
38
8
BL_X
This is the X coordinate of an interior point for each polygon, usually the centroid.
California Department of Water Resources
BL_X
Double
8
38
8
BL_Y
This is the Y coordinate of the same interior point described for the field BL_X.
California Department of Water Resources
BL_Y
Double
8
38
8
ACRES
Total acreage for each individual polygon, given in U.S. acres.
California Department of Water Resources
ACRES
Double
8
38
8
WATERSOURC
This field indicates source of irrigation water.
California Department of Water Resources
Irrigation water source codes are:
1 - Surface Water
2 - Mixed surface water and ground water
3 - Ground water
4 - Unknown source 5 - Recycled or reclaimed
WATERSOURC
String
1
0
0
MULTIUSE
This field indicates whether sequential or concurrent land uses are mapped within the area represented by a polygon.
California Department of Water Resources
Polygons where a sequence of one to three crops were planted in succession are coded as:
S - a single land use or crop
D - double cropped: two crops grown in sequence, or
T – triple cropped: three crops grown in sequence.
Polygons where crops or land uses are spatially mixed within the polygon at the same time are coded as: I- intercropped: orchards or vineyards with an annual crop planted between the rows, M – mixed use: A single polygon area that represents a mixture of two or three land uses. The percentages representing each multiuse type are coded in the PCNT1, PCNT2, and PCNT3 fields.
MULTIUSE
String
13
0
0
CLASS1
This is the class for the first land use, which is the first level of detail for land use identification. All class codes are letters, not numerals. Every polygon must have a standard code in CLASS1. All agricultural class codes (except 'S' Semi-agricultural) are right justified with a leading space.
California Department of Water Resources
Following are example class codes: G - Grain and hay crops
R - Rice
F - Field crops
P - Pasture
T - Truck, nursery, and berry crops
D - Deciduous fruits and nuts
C - Citrus and subtropical
V - Vineyards
I - Idle
S - Semi-agricultural and incidental to agriculture,
U - Urban - residential, commercial, and industrial, unsegregated
UR - Urban residential - single and multi-family units, includes trailer parks
UC - Urban commercial
UI - Urban industrial
UV - Urban vacant
NC - Native classes unsegregated
NV - Native vegetation
NR - Native riparian vegetation
NW - Water surface
NB - Barren and wasteland
NS - Not surveyed
E - Entry denied - area within the study area that was not mapped because entry into the area was denied
Z - Outside of the study area.
CLASS1
String
2
0
0
SUBCLASS1
This is the subclass for the first land use, which is the second level of detail for land use identification. It is not mandatory to have a subclass code after a class code except for classes "I" and "S". All subclasses are text numerals, and fall under each class. A specific subclass value represents different crops or other land uses depending upon the class associated with it (i.e. unique crop codes are only created by the combination of Class and Subclass).
California Department of Water Resources
Following are example subclasses codes: CLASS G - Grain and hay crops: 1 - Barley, 2 - Wheat, 3 - Oats, 6 - Miscellaneous grain and hay, 7 - Mixed grain and hay. CLASS R - Rice: 1 - Rice, 2 - Wild Rice. CLASS F - Field crops: 1 - Cotton, 2 - Safflower, 3 - Flax, 4 - Hops, 5 - Sugar beets, 6 - Corn (field & sweet), 7 - Grain sorghum, 8 - Sudan, 9 - Castor beans, 10 - Beans (dry), 11 - Miscellaneous field, 12 - Sunflowers, 13 - Hybrid sorghum/sudan, 14 - Millet, 15, Sugar cane. CLASS P - Pasture: 1 - Alfalfa & alfalfa mixtures, 2 - Clover, 3 - Mixed pasture, 4 - Native pasture, 5 - Induced high water table native pasture, 6 - Miscellaneous grasses, 7 - Turf farms, 8 - Bermuda grass, 9 - Rye grass, 10 - Klein grass. CLASS T - Truck, nursery & berry crops: 1 - Artichokes, 2 - Asparagus, 3 - Beans (green), 4 - Cole crops (mixture of 22-25), 6 - Carrots, 7 - Celery, 8 - Lettuce (all types), 9 - Melons, squash, and cucumbers (all types), 10 - Onions & garlic, 11 - Peas, 12 - Potatoes, 13 - Sweet potatoes, 14 - Spinach, 15 - Tomatoes (processing), 16 - Flowers, nursery & Christmas tree farms, 17 - Mixed (four or more), 18 - Miscellaneous truck, 19 - Bush berries, 20 - Strawberries, 21 - Peppers (chili, bell, etc.), 22 - Broccoli, 23 - Cabbage, 24 - Cauliflower, 25 - Brussels sprouts, 26 - Tomatoes (market), 27 - Greenhouse, 28 - Blueberries, 29 - Asian leafy vegetables. CLASS D - Deciduous fruits and nuts: 1 - Apples, 2 - Apricots, 3 - Cherries, 5 - Peaches and nectarines, 6 - Pears, 7 - Plums, 8 - Prunes, 9 - Figs, 10 - Miscellaneous deciduous, 11 - Mixed deciduous, 12 - Almonds, 13 - Walnuts, 14 - Pistachios, 15 - Pomegranates. CLASS C - Citrus and subtropical: 1 - Grapefruit, 2 - Lemons, 3 - Oranges, 4 - Dates, 5 - Avocados, 6 - Olives, 7 - Miscellaneous subtropical fruit, 8 - Kiwis, 9 - Jojoba, 10 - Eucalyptus, 11 - Mixed subtropical fruits. CLASS V - Vineyards: 1 - Table grapes, 2 - Wine grapes, 3 - Raisin grapes. CLASS I - Idle: 1 - Land not cropped the current or previous crop season, but cropped within the past three years, 2 - new lands being prepared for crop production. CLASS S – Semi-agricultural & incidental to agriculture: 1 - Farmsteads (includes a farm residence), 2 - Livestock feed lot operations, 3 - Dairies, 4 - Poultry farms, 5 - Farmsteads (without a farm residence), 6 - Miscellaneous semi-agricultural (small roads, ditches, non-planted areas of cropped fields). CLASS U - Urban - generic nomenclature with no subclass.
CLASS UR - Urban residential: 1 - Single family dwellings with lot sizes greater than 1 acre up to 5 acres (ranchettes, etc.), 2 - Single family dwellings with a density of 1 unit/acre up to 8+ units per acre, 3 - Multiple family (apartments, condominiums, townhouses, barracks, bungalows, duplexes, etc.), 4 - Trailer courts. WATER USE FACTOR (% of total area irrigated - will be the second digit of the UR subclass when water factor is used): 1 - 0% to 25% area irrigated, 2 - 26% to 50% area irrigated, 3 - 51% to 75% area irrigated, 4 - 76% to 100% area irrigated.
CLASS UC - Commercial: 1. Offices, retailers, etc. 2. Hotels 3. Motels 4. Recreation vehicle parking, camp sites 5. Institutions (hospitals, prisons, reformatories, asylums, etc., having a reasonably constant 24-hour resident population) 6. Schools (yards to be mapped separately if large enough) 7. Municipal auditoriums, theaters, churches, buildings and stands associated with race tracks, football stadiums, baseball parks, rodeo arenas, amusement parks, etc. 8. Miscellaneous high water use (to be used to indicate a high water use condition not covered by the above categories.). CLASS UI - Industrial: 1. Manufacturing, assembling, and general processing 2. Extractive industries (oil fields, rock quarries, gravel pits, rock and gravel processing plants, etc.) 3. Storage and distribution (warehouses, substations, railroad marshalling yards, tank farms, etc.) 6. Saw mills 7. Oil refineries 8. Paper mills 9. Meat packing plants 10. Steel and aluminum mills 11. Fruit and vegetable canneries and general food processing 12. Miscellaneous high water use (to be used to indicate a high water use condition not covered by other categories.) 13. Sewage treatment plant including ponds. 14. Waste accumulation sites (public dumps, sewage sludge sites, landfill and hazardous waste sites, etc.) 15. Wind farms, solar collector farms, etc. CLASS - UL: 1. Lawn area - irrigated 2. Golf course - irrigated 3. Ornamental landscape (excluding lawns) - irrigated 4. Cemeteries - irrigated 5. Cemeteries - not irrigated. CLASS UV - Vacant: 1. Unpaved areas (vacant lots, graveled surfaces, play yards, developable open lands within urban areas, etc.) 3. Railroad right of way. 4. Paved areas (parking lots, paved roads, oiled surfaces, flood control channels, tennis court areas, auto sales lots, etc.) 6. Airport runways 7. Land in urban area that is not developable. CLASS NC - Native class - generic nomenclature with no subclass
CLASS NV - Native vegetation: 1. Grassland, 2. Light brush, 3. Medium brush, 4. Heavy brush, 5. Brush and timber, 6. Forest, 7. Oak woodland. CLASS NR - Riparian vegetation: 1. Marsh lands, tules and sedges 2. Natural high water table meadow 3. Trees, shrubs or other larger stream side or watercourse vegetation 4. Seasonal duck marsh, dry or only partially wet during summer 5. Permanent duck marsh, flooded during summer. CLASS NW - Water Surface: 1. River or stream (natural fresh water channels) 2. Water channel (all sizes - ditches and canals - delivering water for irrigation and urban use - e.g. State Water Project, Central Valley Project, water district canals, etc) 3. Water channel (all sizes - ditches and canals - for removing on-farm drainage water - surface runoff and subsurface drainage - e.g. Colusa drain, drainage ditches in Imperial) 4. Freshwater lake, reservoir, or pond (all sizes, includes ponds for stock, recreation, groundwater recharge, managed wetlands, on-farm storage, etc.) 5. Brackish and saline water (includes areas in estuaries, inland water bodies, the ocean, etc) 6. Wastewater pond (dairy, sewage, cannery, winery, etc) 7. Paved water conveyance channels within urban areas (mainly for flood control). CLASS NB - Barren and Wasteland: 1. Dry stream channels, 2. Mine tailings, 3. Barren land, 4. Salt flats, 5. Sand dunes.
CLASS E - Entry denied - no subclass
CLASS Z - Outside of study area - no subclass
SUBCLASS1
String
2
0
0
SPECOND1
This is a special condition for the first land use, which is a letter (only one is used per polygon). It is not mandatory to have a special condition code after a Class code.
California Department of Water Resources
Following are special condition codes: A - ABANDONED ORCHARDS AND VINEYARDS Trees or vines must be in such a condition that renewal of cultural practices would restore economic production. Example: D1-A indicates an apple orchard previously in production but now abandoned. B - BURNED OVER AREAS Indicated by "B". The type and density of natural cover destroyed by fire maybe obtained by examination of aerial photographs or satellite imagery. Example: NV7-B indicates oak grassland recently burned over. C – GREEN CHOPPED Grain or field crops harvested early for livestock feed D - HIGH DENSITY ORCHARDS Indicates the density of trees is higher than normally expected (used with D and C classes). E – ECOSYSTEM RESTORATION Native vegetation or riparian areas that have undergone restoration (used with NV and NR classes). F - FALLOW LANDS Land not cropped during the current crop season, but cropped during the previous crop season. (1) If no crop residue is apparent or identifiable then the "F" symbol will follow the agricultural class symbol for the crop most representative of those grown in the area. Example: T-F indicates fallow land within a truck crop area (with facilities for irrigation). (2) If the crop residue is apparent and identifiable but is not from the current crop season covered by the survey then the field is considered fallow and mapped as the class of the crop residue. Example: Surveyor found old sugar beet residue not from current season. Land would be mapped F-F. (3) If the crop residue is identifiable as that of a crop which was grown during the survey period, then the field is mapped as though the crop existed. Example: Surveyor found carrot residue from current growing season. Land would be mapped T6. G – COVER CROP Indicates where grain, field, or pasture type crops have been planted for soil stabilization or for cover crops grown between rows of deciduous and subtropical trees and vines. H – HARVESTED CROP Indicates the identified crop was harvested at the time of the survey (used with truck, field, and grain crops). K - FREEWAYS The area within the freeway right of way. Examples: UV-K indicates urban vacant, unsegregated, with a freeway special condition (all areas within the freeway right of way). UV4-K indicates the urban vacant paved areas with a freeway special condition (the paved portion within the freeway right of way.) UL3-K indicates irrigated urban landscape with a freeway special condition (irrigated landscape portion within the freeway right of way). R - RECREATIONAL To be used with urban residential, commercial, and vacant (recreational vehicle parks and camp sites) within primarily a seasonal recreational area. S - SEED CROP Indicates any crop grown for seed. Example: P1-S indicates an irrigated alfalfa seed crop. T - TILLED LANDS Land prepared for immediate planting, or just newly planted, including the appearance of seed lines or unidentifiable tiny seedlings. Example: T-T indicates tilled land (either prepared for planting or just planted) in a predominately truck crop area. U – INTERPRETED LANDUSE Indicates that the land use was determined using other means than visual field verification. X - PARTIALLY IRRIGATED CROPS Crops irrigated for only part of their normal irrigation season. Example: P3-X indicates partially irrigated mixed pasture. Y - YOUNG CROPS Indicates the identified crop is at early stages of growth (used with non-bearing orchards and vineyards, and truck, field, and grain crops). Example: C3-Y indicates young non-bearing oranges. Z - RECLAMATION Land being leached for the removal of harmful salts. This symbol will be used following either the “Idle” symbol or symbols of crops grown as a step in the reclamation process. Example: I2-Z indicates new lands being leached in preparation for crop production. Example: I2-Z indicates new lands being leached in preparation for crop production.
SPECOND1
String
1
0
0
IRR_TYP1PA
This field is the irrigation status for the first land use (either irrigated or non-irrigated).
California Department of Water Resources
The letter code are “i” for irrigated, and “n” for non-irrigated.
IRR_TYP1PA
String
1
0
0
IRR_TYP1PB
This field is the type of irrigation system.
California Department of Water Resources
Types of irrigation system codes are: C - Center Pivot Sprinkler L - Linear Move Sprinkler R - Side Roll Sprinkler H - Hand Move Sprinkler P - Permanent Sprinkler T - Solid Set Sprinkler F - Furrow Irrigation B - Border Strip Irrigation N - Basin Irrigation W - Wild Flooding S - Subirrigation D - Surface Drip Irrigation A - Buried Drip Irrigation M - Micro Sprinkler E - LEPA (Low Energy Precision Application) U - Unknown or not mapped.
IRR_TYP1PB
String
1
0
0
PCNT1
This field is the percentage of land associated with the first land use, using text numerals.
California Department of Water Resources
The code “50” means 50%, the code “00” means 100%. A single, double, triple, and intercropped (“S”, “D”, “T”, and “I”) land use will always have “00” (100%) in this field. A mixed land use (“M”) will always have a code in this field, but it will be less than 100% (for further details, see MULTIUSE definition, above).
PCNT1
String
2
0
0
CLASS2
The second crop or other land use identified on a field. (See CLASS1 for list details and descriptions)
California Department of Water Resources
See CLASS1 for detail
CLASS2
String
2
0
0
SUBCLASS2
See SUBCLASS1 definition for detail
California Department of Water Resources
See SUBCLASS1 for detail
SUBCLASS2
String
2
0
0
SPECOND2
See SPECOND1 for detail
California Department of Water Resources
See SPECOND1 for detail
SPECOND2
String
1
0
0
IRR_TYP2PA
See IRR_TYP1PA for detail
California Department of Water Resources
See IRR_TYP1PA for detail
IRR_TYP2PA
String
1
0
0
IRR_TYP2PB
See IRR_TYP1PB for detail
California Department of Water Resources
See IRR_TYP1PB for detail
IRR_TYP2PB
String
1
0
0
PCNT2
This field is used for double or triple cropping, intercropping, and mixed use.
California Department of Water Resources
PCNT2 = 00 for double or triple cropping, PCNT2 = 50 for intercropping, and 0 < PCNT2 < 100 for mixed use.
PCNT2
String
2
0
0
CLASS3
This field is the third crop or other land use identified on a field. (See CLASS1 for list details and descriptions)
California Department of Water Resources
See CLASS1 for list detail
CLASS3
String
2
0
0
SUBCLASS3
See SUBCLASS1 for detail
California Department of Water Resources
See SUBCLASS1 for detail
SUBCLASS3
String
2
0
0
SPECOND3
See SPECOND1 for detail
California Department of Water Resources
See SPECOND1 for detail
SPECOND3
String
1
0
0
IRR_TYP3PA
See IRR_TYP1PA for detail
California Department of Water Resources
See IRR_TYP1PA for detail
IRR_TYP3PA
String
1
0
0
IRR_TYP3PB
See IRR_TYP1PB for detail
California Department of Water Resources
See IRR_TYP1PB for detail
IRR_TYP3PB
String
1
0
0
PCNT3
This field is used for multiuse cropping
California Department of Water Resources
PCNT3 = ** for Multiuse = S, D, or I, PCNT3 = 00 for Multiuse = T, and 0 < PCNT3 < 100 or ** for Multiuse = M.
PCNT3
String
2
0
0
UCF_ATT
This field is (28 characters) concatenation of all field survey attributes starting from the MULTIUSE field to the PCNT3 field, used by DWR headquarters for analysis and review in the QA/QC process and for processing data in raster format. Beginning character positions of attribute substrings within the UCF_ATT text are listed below: 1 MULTIUSE 2 CLASS1 3 SUBCLASS1 6 SPECOND1 7 IRR_TYP1PA 8 IRR_TYP1PB 9 PCNT1
11 CLASS2
13 SUBCLASS2
15 SPECOND2
16 IRR_TYP2PA
17 IRR_TYP2PB
18 PCNT2
20 CLASS3
22 SUBCLASS3
24 SPECOND3
25 IRR_TYP3PA
26 IRR_TYP3PB
27 PCNT3
California Department of Water Resources
UCF_ATT
String
28
0
0
LABEL
This field is a high level cartographic notation for each polygon, based on the combined class/subclass values of Class 1, 2, & 3 data (spaces removed). If a special condition is associated with any class/subclass, it will follow that class/subclass connected by a dash (e.g. corn is ‘F6’, fallow corn is ‘F6-F’). If an agricultural class is not irrigated, it will be preceded by ‘n’ (e.g. non-irrigated corn is ‘nF6’).
California Department of Water Resources
Delimiters between classes change based upon the MULTIUSE type:
S - Single use, no delimiter, irrigation and special conditions notated as above. D - Double crop, delimiter is ‘()’, e.g. (crop1)crop2
T - Triple crop, delimiter is ‘()()’ , e.g. (crop1)(crop2)crop3
I - Intercrop, delimiter is ‘/’, e.g. crop1/crop2
M - Mixed use two classes, delimiter is ‘+’, e.g. use1+use2
Mixed use three classes, delimiter is ‘+ +’, e.g. use1+use2+use3
LABEL
String
28
0
0
atlas_wmas.SDE.i15_LandUse_Imperial1997.AREA
atlas_wmas.SDE.i15_LandUse_Imperial1997.AREA
Double
8
38
8
SURVEYAREA
This field is the county, region or special study area where the survey occurred.
California Department of Water Resources
SURVEYAREA
String
30
0
0
SURVEYYEAR
This field is the year (four character) in which the survey's field work was done.
California Department of Water Resources
SURVEYYEAR
SmallInteger
2
5
0
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
AREA
AREA
Double
8
0
0
Feature Class
dataset
EPSG
6.18.3(9.3.1.2)
5731
Simple
FALSE
5731
TRUE
FALSE
20240102