agriculture_public

Theme keywords: Farming, Vineyard, Orchard, Agriculture, grazing

Abstract: Napa County Agriculture: including Vineyard, Grazing and Orchard.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Title:
agriculture_public


Description:
Abstract:
Napa County Agriculture: including Vineyard, Grazing and Orchard.

Purpose:
To show where agricultural development exists in Napa County.

Supplemental information:
The Agriculture was heads-up digitized from 1993, 2002, 2005, 2007, and 2010 aerial photos.

Time period of content:
Time period information:
Single date/time:
Calendar date: 20100615

Currentness reference:
ground condition

Status:
Progress: Complete
Maintenance and update frequency: As needed

Spatial domain:
Bounding coordinates:
West bounding coordinate: -122.646546
East bounding coordinate: -122.061267
North bounding coordinate: 38.759255
South bounding coordinate: 38.153328

Keywords:
Theme:
Theme keywords: Farming, Vineyard, Orchard, Agriculture, grazing

Place:
Place keywords: Napa County, Napa, California

Access constraints: None. Data is available from County of Napa by registering at website: http://gis.napa.ca.gov/giscatalog/catalog.asp. This data is made available under the Public Domain Dedication and License version v1.0 whose full text can be found at: http://opendatacommons.org/licenses/pddl/1.0/
Use constraints:
Disclaimer: This GIS data is intended to provide a visual display of data for the user's convenience. Users of this data are hereby notified that the appropriate public primary information sources should be consulted for verification of the information.  Although every reasonable effort has been made to assure the accuracy of this data, the County of Napa makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the data provided herein and explicitly disclaims any representations and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. The County of Napa assumes no liability for any errors, omissions, or inaccuracies in the information provided regardless of how caused and assumes no liability for any decisions made or actions taken or not taken by the user of the data in reliance upon any information or data furnished hereunder. Because the GIS data provided is not warranted to be up-to-date, the user should check with the County staff for updated information.

Point of contact:
Contact information:
Contact person primary:
Contact person: Matt Lamborn
Contact organization: Napa County Planning, Building, Environmental Health Services
Contact position: GIS Consultant


Contact address:
Address type: mailing and physical address
Address:
1195 3rd St
City: Napa
State or province: CA
Postal code: 94559
Country: USA

Contact voice telephone: 707-265-2326


Contact electronic mail address: matt.lamborn@countyofnapa.org


Hours of service: 8:30 - 4:30



Cross reference:
Citation information:
Originators: Napa County Planning, Building, Environmental Health Services


Title:
napa county agriculture


Publication date: 20150821


Other citation details:
Napa County Air Photos and NAIP imagery were the bases for digitizing.


Back to Top
Data Quality Information:


Attribute accuracy:
Attribute accuracy report:
QC and accuracy calculations were performed for the 2010 data only.

The work done for the 2010 update (in Summer 2011) was determined to be 98.5% accurate.

Quantitative attribute accuracy assessment:
Attribute accuracy value: 98.5%
Attribute accuracy explanation:
The "Create Random Points" tool was used in ArcMap to generate 100 random sampling points that fell within the agriculture polygons (classified by the yr_2010 field only). Each sampling point was visually inspected to compare the feature's attribute classification with the feature depicted in the 2010 NAIP imagery. The attributes were tallied using a standard Error Table.

The process was completed twice using the same 100-point sampling population by two CDPD interns in separate QC sessions. The first QC round produced a 99% estimated accuracy level. The second round produced 98%. The two scores were averaged together to produce a final estimated accuracy level of 98.5%.

Logical consistency report:
ATTRIBUTE CONSISTENCY:
Domain values controlled input for ag types (vineyard, orchard, grazing, fallow, etc) during the redesign and update of the agriculture layer during the Summer of 2011.

Because the QA process for previous iterations of the agriculture layer was unknown, a simple Test for Valid Values was performed by bringing the layer into ArcMap, and symbolizing the features by the original "AG_TYPE" field using Categories-->Unique Fields, then adding all values. The resulting list of values was visually inspected for misspellings, alternate spellings, or other inconsistent values/inaccuracies. None were encountered.

LOGICAL CONSISITENCY:
Small polygons (i.e. < 0.10 ac) were isolated and inspected to determine if they were floating remnants or slivers of deleted features or of polygons that underwent previous geoprocessing tasks. Some remnants were found and either deleted or merged with an adjacent feature.

Completeness report:
Digitizing agricultural features from aerial imagery is largely a subjective excercise. The project team incorporated a number of measures/safeguards to insure the highest degree of objectivity and consistency possible, including:

1) Regular check-in meetings to discuss the project, methodology, and review of questionable features.
2) A number of ID rules were agreed upon:
  a) Properties with no obivous vineyard canopy, but with clear, arrayed lines similar to vinerows were treated as vineyard.
  b) Properties with no obivous vineyard canopy and no clearly arrayed lines were classified as fallow.
  c) Properties with no obivous vineyard canopy, with broken arrayed lines and obvious signs of vineyard removal (i.e. burn piles) were classified as fallow.

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
Their was no horizontal control set for this project. The horizontal accuracy for features in this layer are dependent on 1) the horizontal accuracy of the original orthophotos used for digitization and 2) the level of accuracy and feature conformance employed by the individual doing the digitizing. During regular course of work, some polygons from previous ag layer iterations were visually ID'd as being noticeably different from ground features shown on the imagery and were revised accordingly.

Quantitative horizontal positional accuracy assessment:
Horizontal positional accuracy value: n/a

Vertical positional accuracy:
Vertical positional accuracy report:
This layer does not contain or use Z values

Lineage:
Source information:
Source citation:
Citation information:
Originators: USDA APFO


Title:
naip_2010


Publication date: June 2010
Geospatial data presentation form: raster digital data


Other citation details:
This project used the Natural Color imagery and the Color Infrared (CIR) imagery.


Online linkage: http://www.dfg.ca.gov/biogeodata/gis/map_services.asp


Source scale denominator: 24000
Type of source media: raster image
Source citation abbreviation:
NAIP_2010
Source contribution:
2010 National Agriculture Imagery Program (NAIP) Imagery.

This project used the Natural Color imagery and the Color Infrared (CIR) imagery.

NAIP imagery is produced and provided by the USDA's Aerial Photography Field Office (APFO).

Source time period of content:
Time period information:
Single date/time:
Calendar date: June 2010

Source currentness reference:
ground condition

Process step:
Process description:
PROCESS FOR ORIGINAL AG LAYER:
Heads-up-digitized from the Napa County 1993, 2002 & 2005 Orthophotos.  Went through at 1:2400 scale and digitized in any visible vineyard and orchard.  Used Napa County Ag Commission's fields layer to help delineate vineyards as well as Napa County parcel layer in order to keep vineyards together that are within the same ownership.  Used Ag Contract layer for further vineyard but mainly for grazing lands along with information that the Ag Commissioner had on grazing lands.

Process date: 20150518


Process contact:
Contact information:
Contact person primary:
Contact person: Matt Lamborn
Contact organization: County of Napa Planning, Building, Environmental Health Services

Contact voice telephone: 7072652326


Contact electronic mail address: matt.lamborn@countyofnapa.org


Back to Top
Spatial Data Organization Information:


Direct spatial Rreference method: Vector


Point and vector object information:
ESRI terms description:
*Name: agriculture_public
*ESRI feature type: Simple
*ESRI feature geometry:
*ESRI topology: FALSE
*ESRI feature count: 7747
*Spatial index: FALSE
*Linear referencing: FALSE


Back to Top
Spatial Reference Information:


Horizontal coordinate system definition:
Planar:
Planar coordinate information:
Planar coordinate encoding method: coordinate pair
Coordinate representation:
Abscissa resolution: 0.000328
Ordinate resolution: 0.000328
Planar distance units: survey feet

Geodetic model:
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

Vertical coordinate system definition:
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

Back to Top
Entity and Attribute Information:


Detailed description:
*Name: agriculture_public


Entity type:
*Entity type label: agriculture_public
*Entity type type: Feature Class
*Entity type count: 7747

Attribute:
Attribute label: OBJECTID
*Attribute alias: objectid
Attribute definition:
Internal feature number.
Attribute definition source:
ESRI

*Attribute type: OID
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
Attribute label: ACRES
*Attribute alias: ACRES
Attribute definition:
Total calculated acres.

*Attribute type: Double
*Attribute width: 8
*Attribute precision: 38
*Attribute scale: 8


Attribute:
Attribute label: YEAR
*Attribute alias: YEAR
Attribute definition:
Denotes the year that the ag type first appeared in an orthophoto.

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute:
Attribute label: Shape
*Attribute alias: shape
Attribute definition:
Feature geometry.
Attribute definition source:
ESRI

*Attribute type: Geometry
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
Unrepresentable domain:
Coordinates defining the features.


Attribute:
Attribute label: yr_1993
*Attribute alias: yr_1993
Attribute definition:
Ag types found in the 1993 Napa County orthophoto.
Attribute definition source:
Napa Co. PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
Attribute label: yr_2002
*Attribute alias: yr_2002
Attribute definition:
Ag types found in the 2002 Napa County orthophoto.
Attribute definition source:
Napa Co. PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
Attribute label: yr_2005
*Attribute alias: yr_2005
Attribute definition:
Ag types found in the 2005 Napa County orthophoto.
Attribute definition source:
Napa Co. PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
Attribute label: yr_2007
*Attribute alias: yr_2007
Attribute definition:
Ag types found in the 2007 Napa County orthophoto.
Attribute definition source:
Napa Co. PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
Attribute label: yr_2010
*Attribute alias: yr_2010
Attribute definition:
Ag types found in the 2010 NAIP orthophoto.
Attribute definition source:
Napa Co PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Attribute domain values:
Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
Attribute label: yr_2014
*Attribute alias: yr_2014
Attribute definition:
Ag types found in the 2014 countywide orthophotos
Attribute definition source:
Napa Co PBES

*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute domain values:
Enumerated domain:
Enumerated domain value: 0
Enumerated domain value definition:
fallow
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 1
Enumerated domain value definition:
vineyard
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 2
Enumerated domain value definition:
orchard
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 3
Enumerated domain value definition:
grazing
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 4
Enumerated domain value definition:
other
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 5
Enumerated domain value definition:
non-agriculture
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 6
Enumerated domain value definition:
under development
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 7
Enumerated domain value definition:
flagged for future follow-up
Enumerated domain value definition source:
Napa Co. PBES

Enumerated domain:
Enumerated domain value: 99
Enumerated domain value definition:
null
Enumerated domain value definition source:
Napa Co. PBES

Attribute:
*Attribute label: yr_2016
*Attribute alias: yr_2016


*Attribute type: Integer
*Attribute width: 4
*Attribute precision: 10
*Attribute scale: 0


Attribute:
Attribute label: Shape.STArea()
*Attribute alias: shape.STArea()


*Attribute type: Double
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Attribute:
Attribute label: Shape.STLength()
*Attribute alias: shape.STLength()


*Attribute type: Double
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Back to Top
Distribution Information:


Distributor:
Contact information:
Contact person primary:
Contact person: Matt Lamborn
Contact organization: County of Napa Planning, Building, Environmental Health Services
Contact position: GIS Departmental Coordinator


Contact voice telephone: 7072652326


Contact electronic mail address: Matt.Lamborn@countyofnapa.org


Resource description: none. data is available from county of napa by registering at website: http://gis.napa.ca.gov/giscatalog/catalog.asp


Distribution liability:
Disclaimer: This GIS data is intended to provide a visual display of data for the user's convenience. Users of this data are hereby notified that the appropriate public primary information sources should be consulted for verification of the information.  Although every reasonable effort has been made to assure the accuracy of this data, the County of Napa makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the data provided herein and explicitly disclaims any representations and warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. The County of Napa assumes no liability for any errors, omissions, or inaccuracies in the information provided regardless of how caused and assumes no liability for any decisions made or actions taken or not taken by the user of the data in reliance upon any information or data furnished hereunder. Because the GIS data provided is not warranted to be up-to-date, the user should check with the County staff for updated information.

Custom order process:
Contact Napa County ITS


Back to Top
Metadata Reference Information:


Metadata date: 20110818


Metadata contact:
Contact information:
Contact person primary:
Contact person: Matt Lamborn or Jeff Tangen
Contact organization: Napa County
Contact position: GIS Planner


Contact address:
Address:
1195 3rd St
City: Napa
State or province: CA
Postal code: 94559
Country: USA

Contact voice telephone: 707-253-4417
Contact facsimile telephone: 707-299-4118


Contact electronic mail address: matt.lamborn@countyofnapa.org


Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
Metadata standard version: FGDC-STD-001-1998
Metadata time convention: local time


Back to Top



Metadata stylesheets are provided courtesy of ESRI. Copyright (c) 2000-2002, Environmental Systems Research Institute, Inc. All rights reserved.