Name: i15_LandUse_SanMateo2012

Display Field: WATERSOURC

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This data represents a land use survey of San Mateo County conducted by the California Department of Water Resources, North Central Regional Office staff. The field work for this survey was conducted during June 2012 by staff visiting each field and noting what was grown. Land use field boundaries were digitized using ArcGIS 10.0 with 2010 National Agriculture Imagery Program (NAIP) one-meter imagery as the base. Field boundaries were reviewed and updated using 2012 NAIP imagery when it became available. Field boundaries were not drawn to represent legal parcel (ownership) boundaries, or meant to be used as parcel boundaries. Images and land use boundaries were loaded onto laptop computers that were used as the field data collection tools. GPS units connected to the laptops were used to confirm surveyor's location with respect to the fields. Staff took these laptops into the field and virtually all the areas were visited to positively identify the land use. Land use codes were digitized in the field on laptop computers using ESRI ArcMAP software, version 10.0.Before final processing, standard quality control procedures were performed jointly by staff at DWR’s North Central Region, and at DSIWM headquarters under the leadership of Jean Woods. Senior Land and Water Use Supervisor. After quality control procedures were completed, the data was finalized. The positional accuracy of the digital line work, which is based upon the orthorectified NAIP imagery, is approximately 6 meters. The land use attribute accuracy for agricultural fields is high, because almost every delineated field was visited by a surveyor. The accuracy is 95 percent because some errors may have occurred. Possible sources of attribute errors are: a) Human error in the identification of crop types, b) Data entry errors.

Copyright Text: Department of Water Resources, Division of Integrated Regional Water Management, North Central Region Office, Land and Water Use and Conservation Section.

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

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Max Scale: 0

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Supports Statistics: true

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Can Modify Layer: true

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YMin: 4454033.766999997
XMax: -1.35900725651E7
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Spatial Reference: 102100  (3857)

Drawing Info:

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Field 2: N/A
Field 3: N/A
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  Label: P | PASTURE
  Description: N/A
  Symbol:
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  Color: [74, 148, 135, 255]
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• Value: G
  Label: G | GRAIN AND HAY CROP
  Description: N/A
  Symbol:
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  Color: [250, 191, 143, 255]
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• Value: T
  Label: T | TRUCK NURSERY AND BERRY CROPS
  Description: N/A
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• Value: F
  Label: F | FIELD CROPS
  Description: N/A
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• Value: C
  Label: C | CITRUS AND SUBTROPICAL
  Description: N/A
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  Color: [66, 212, 102, 255]
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• Value: D
  Label: D | DECIDUOUS FRUITS AND NUTS
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• Value: V
  Label: V | VINEYARD
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• Value: I
  Label: I | IDLE
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  Label: NB | NATIVE BARREN
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  Label: NV | NATIVE VEGETATION
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  Label: NW | NATIVE WATER
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• Value: S
  Label: S | SEMIAGRICULTURAL AND INCIDENTAL TO AGRICULTURE
  Description: N/A
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• Value: UC
  Label: UC | URBAN COMMERCIAL
  Description: N/A
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• Value: UI
  Label: UI | URBAN INDUSTRIAL
  Description: N/A
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  Color: [68, 101, 137, 255]
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• Value: UL
  Label: UL | URBAN LANDSCAPE
  Description: N/A
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  Color: [215, 194, 158, 255]
  Outline:
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• Value: UR
  Label: UR | URBAN RESIDENTIAL
  Description: N/A
  Symbol:
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  Color: [230, 76, 0, 255]
  Outline:
  N/A
• Value: UV
  Label: UV | URBAN VACANT
  Description: N/A
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  Color: [255, 190, 232, 255]
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  N/A
• Value: E
  Label: E | ENTRY DENIED
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Transparency: 0
Labeling Info:

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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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