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ooAKKKKACiiigAooooAKKKKACiiigD//2Q== ArcGIS Metadata 1.0 i15_LandUse_Fresno2000 2020-01-15 20040225 vector digital data <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The 2000 Fresno 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 San Joaquin District. Quality control procedures were performed jointly by staff at DWR’s DPLA headquarters and San Joaquin District. The finalized data include a shapefile of central and western Fresno County (land use vector data) and JPG files (raster data from aerial imagery). Important Points about Using this Data Set: 1. The land use boundaries were either drawn on-screen using developed photoquads, or hand drawn directly on USGS quad maps and then digitized. 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 a "snapshot" in time. The indicated land use attributes of each delineated area (polygon) were based upon what the surveyor saw in the field at that time, and, to the extent possible, whatever additional information the aerial photography might provide. For example, the surveyor might have seen a cropped field in the photograph, and the field visit showed a field of corn, so the field was given a corn attribute. In another field, the photograph might have shown a crop that was golden in color (indicating grain prior to harvest), and the field visit showed newly planted corn. This field would be given an attribute showing a double crop, grain followed by corn. The DWR land use attribute structure allows for up to three crops per delineated area (polygon). In the cases where there were crops grown before the survey took place, the surveyor may or may not have been able to detect them from the field or the photographs. For crops planted after the survey date, the surveyor could not account for these crops. Thus, although the data is very accurate for that point in time, it may not be an accurate determination of what was grown in the fields for the whole year. If the area being surveyed does have double or multicropping systems, it is likely that there are more crops grown than could be surveyed with a "snapshot". 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. If the data is compared to the previous digital survey (i.e. the two coverages intersected for change detection determination) there will be land use changes that may be unexpected. The linework was created independently, so even if a field’s physical boundary hasn’t changed between surveys, the lines may differ due to difference in digitizing. Numerous thin polygons (with very little area) will result. A result could be UV1 (paved roads) to F1 (cotton). In reality, paved roads are not converted to cotton fields, but these small polygons would be created due to the differences in digitizing the linework for each survey. Additionally, this kind of comparison may yield polygons of significant size with unexpected changes. These changes will almost always involve non-cropped land, mainly U (urban), UR1 (single family homes on 1 – 5 acres), UV (urban vacant), NV (native vegetation), and I1 (land not cropped that year, but cropped within the past three years). The unexpected results (such as U to NV, or UR1 to NV) occur mainly because of interpretation of those non-cropped land uses with aerial imagery. Newer surveys or well funded surveys have had the advantage of using improved quality (higher resolution) imagery or additional labor, where more accurate identification of land use is possible, and more accurate linework is created. For example, an older survey may have a large polygon identified as UR, where the actual land use was a mixture of houses and vacant land. A newer survey may have, for that same area, delineated separately those land uses into smaller polygons. The result of an intersection would include changes from UR to UV (which is normally an unlikely change). It is important to understand that the main purpose of DWR performing land use surveys is to aid in development of agricultural water use data. Thus, given our goals and budget, our emphasis is on obtaining accurate agricultural land uses with less emphasis on obtaining accurate non-agricultural land uses (urban and native areas). 5. Water source information was not collected for this survey. 6. Not all land use codes will be represented in the survey.</SPAN></P></DIV></DIV></DIV> This data is being 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 3.3, dated April 13, 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), South Central Region Office, Land and Water Use and Conservation Section, and Water Use Efficiency Branch (Sacramento Headquarters). Fresno County, California ISO 19115 Topic Category Planning, Cadaster, Farming NDVI Orthorectification Land use Survey Crop Image classification 2000 Agriculture Digital imagery Residential Analysis Vector Ground truth Raster Orthoimagery Boundaries Vineyard Landsat Irrigation Imagery Fresno County Urban California Satellite imagery Survey year Global Positioning System (GPS) Multispectral Native vegetation Cadastral NDVI Orthorectification Land use Survey Crop Image classification 2000 Agriculture Digital imagery Residential Analysis Vector Ground truth Raster Orthoimagery Boundaries Vineyard Landsat Irrigation Imagery Fresno County Urban California Satellite imagery Survey year Global Positioning System (GPS) Multispectral Native vegetation Cadastral Fresno 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. Esri ArcGIS 12.9.3.32739 true -121.001025 -119.250947 37.124944 35.874960 Unknown 2000-01-01 2000-12-31 Land-Use Data Quality Control This dataset is the final copy of 2000 Fresno 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 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. 1 -121.001038 -119.250959 37.124949 35.874965 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 Fresno County. California Department of Water Resources, South Central Regional Office 2000 Fresno Land Use Survey FR00 2022-03-25 David Scruggs vector digital data Dataset has been reviewed by Land Use staff at Sacramento headquarters 2000-01-01 2000-12-31 Data Accuracy: The land use boundaries were drawn on-screen in AUTOCAD using the photoquads as a backdrop. The resultant digital linework for those areas is at best 100 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 The corrected imagery (photoquads) was developed using between 12 and 15 ground control points established from terrain-corrected satellite imagery with a stated accuracy of about 30 feet. The imagery has never been fully evaluated for positional accuracy, however we believe that the images have about 100 foot accuracy (90 percent of the time, the data is within 100 feet of its true position). 2004-02-25 Projection Information: The original dataset was reprojected to GCS NAD83 to conform with the rest of the Atlas land use dataset. 2004-02-25 Data Development: 1. The aerial photography used for this survey was taken in mid June of 2000. The photos (natural color, 9" by 9", flown at 18,000' above ground with a 6" lens) were scanned at 300 DPI and plotted to a size of about 20" x 20". 2. The plotted images were taken to the field as field sheets, and virtually all the areas were visited to positively identify the land use. The site visits occurred in July through October 2000. Land use codes were printed within each area on the field sheets. 3. The scanned images were brought into an image processing system, the images were ratio-rectified (rubbersheeted) into a projection and mosaicked into USGS 1:24,000 quad sized files (photoquads). The files have a pixel size of 4 meters. 4. Using AUTOCAD (using a standardized digitizing process), the photoquads were used as a backdrop to delineate land use boundaries on-screen. The land use attributes were entered from the field sheets. 5. After quality control/assurance procedures were completed on each file (DWG), the data was finalized. 6. The linework and attributes from each DWG quad file were brought into ARCINFO and both quad and survey-wide coverages were created, and underwent quality checks. These coverages were converted to shapefiles using ARCINFO. 2004-02-25 Land Use Attributes: All land use attributes were coded using the Department's Standard Land Use Legend dated March 1999 (98legend.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. 2004-02-25 i15_LandUse_Fresno2000 Table containing attribute information associated with the data set. Producer defined Feature Class 34287 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 Shape Feature geometry. ESRI Shape Geometry 4 0 0 Coordinates defining the features. AREA_METERS Total area calculation of each individual polygon, given in square meters. California Department of Water Resources AREA Double 8 38 8 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 Coordinates defining the features. 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 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 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 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. 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 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. 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 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 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 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. IRR_TYP1PA String 1 0 0 IRR_TYP1PB This field is the type of irrigation system. California Department of Water Resources The letter code are “i” for irrigated, and “n” for non-irrigated. 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 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. 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 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). CLASS2 String 2 0 0 SUBCLASS2 See SUBCLASS1 definition for detail California Department of Water Resources See CLASS1 for detail SUBCLASS2 String 2 0 0 SPECOND2 See SPECOND1 for detail California Department of Water Resources See SUBCLASS1 for detail SPECOND2 String 1 0 0 IRR_TYP2PA See IRR_TYP1PA for detail California Department of Water Resources See SPECOND1 for detail IRR_TYP2PA String 1 0 0 IRR_TYP2PB See IRR_TYP1PB for detail California Department of Water Resources See IRR_TYP1PA 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 See IRR_TYP1PB for detail 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 PCNT2 = 00 for double or triple cropping, PCNT2 = 50 for intercropping, and 0 < PCNT2 < 100 for mixed use. CLASS3 String 2 0 0 SUBCLASS3 See SUBCLASS1 for detail California Department of Water Resources See CLASS1 for list detail SUBCLASS3 String 2 0 0 SPECOND3 See SPECOND1 for detail California Department of Water Resources See SUBCLASS1 for detail SPECOND3 String 1 0 0 IRR_TYP3PA See IRR_TYP1PA for detail California Department of Water Resources See SPECOND1 for detail IRR_TYP3PA String 1 0 0 IRR_TYP3PB See IRR_TYP1PB for detail California Department of Water Resources IRR_TYP3PB String 1 0 0 PCNT3 This field is used for multiuse cropping California Department of Water Resources 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 See IRR_TYP1PA for detail LABEL String 28 0 0 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 Feature Class dataset EPSG 6.18.3(9.3.1.2) 34287 Simple FALSE 34287 TRUE FALSE 20240102