Vernal Pool Complexes - Central Valley, 1989-1998 [ds36]

SDE Feature Class

Open this dataset in BIOS
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Tags
Merced County, Glenn County, Madera County, inlandWaters, Amador County, Stanislaus County, Alameda County, Tehama County, Solano County, distribution, Napa County, complexes, El Dorado County, Sutter County, Yolo County, Shasta County, California, Sonoma County, Calaveras County, biota, Yuba County, Fresno County, Lake County, Tuolumne County, Sacramento County, San Joaquin County, Kings County, vernal pool, Placer County, north bay, Kern County, Contra Costa County, Butte County, environment, Mariposa County, central valley, Colusa County, Marin County


Summary

WHAT THE DATABASE WAS DESIGNED TO DO. The purpose of this inventory was to map the distribution of extant California Central Valley vernal pool complexes. HOW THE DATABASE WAS DESIGNED TO BE USED. The inventory was designed for use by the U.S. Fish and Wildlife Service to make informed decisions in recovery and planning efforts for listed and sensitive species.

Description

This Arc/Info coverage is a polygon layer of vernal pool complexes greater than 40 acres in size for 29 counties throughout the greater Central Valley, and some north bay counties. These data were collected and vernal pool complexes were identified and mapped by Dr. Robert F. Holland in 1995 and refined in a 1998 update. This layer does not contain delineations of individual vernal pools and is not intended for use for wetland delineations or regulatory use. For additional information on the vernal pools mapping projects see the report, Changes in Great Valley Vernal Pool Distribution from 1989 to 1997, June 1998, by Robert F. Holland, Ph.D. It is available online at: http://www.dfg.ca.gov/bdb/wetlands/vp_holland/report_index.htm .

Credits

Use limitations

This data-set may not be redistributed without prior written approval from Mr. Joe Carboni, Wetland Inventory Coordinator, California Department of Fish and Game (see Contact section for contact information). Graphic or textual representation of data shall include appropriate references to sources include author (Dr. Robert F. Holland), the U.S. Fish and Wildlife Service, and the California Department of Fish and Game. These data shall not be amended, edited, or revised in an manner or used inappropriately to produce inaccurate, incomplete, or misleading analyses, reports, maps, or related products. All rights in data remain the property of the U.S. Fish and Wildlife Service who reserves the right to revoke use privileges at any time.

Extent

West -122.975257 East -118.431691
North 40.685119 South 35.139501

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource inlandWaters, environment, biota


* Content type Downloadable Data


Place keywords Merced County, Glenn County, Madera County, Amador County, Stanislaus County, Alameda County, Tehama County, Solano County, Napa County, El Dorado County, Sutter County, Yolo County, Shasta County, California, Sonoma County, Calaveras County, Yuba County, Fresno County, Lake County, Tuolumne County, Sacramento County, San Joaquin County, Kings County, Placer County, north bay, Kern County, Contra Costa County, Butte County, Mariposa County, central valley, Colusa County, Marin County

Theme keywords inlandWaters, biota, environment

Thesaurus
Title ISO 19115 Topic Category




Theme keywords distribution, complexes, vernal pool

Citation

* Title DS0036_20091104
Publication date 1998-06-01


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Joe Carboni, California Department of Fish and Game, Wildlife and Habitat Data Analysis Branch
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
HOW DATA WERE COLLECTED. In 1995, Dr. Roberts F Holland interpreted true color aerial slides (the most recent available aerial photos for each county) from the Department of Water Resources. He identified vernal pool complexes on aerial photos (the most recent available for each county which included some from as far back as 1976). Complexes more than 40 acres in size were traced onto USGS 7.5' quads from which they were digitized. Vernal pool complexes were then given a density rating (see field definition for LUCODEOLD in the Entity Attributes section below). The coverage was refined in June, 1998 with SPOT Imagery, recent U2 (high resolution) photography, and with 1:130,000 scale paper plots of the original data laid over SPOT Imagery. The coverage was created using the Arc/Info command 'CREATE', using an existing coverage as a template for cartographic parameters. After the initial setup of the coverage for data input, vernal pool polygon complexes were digitized into the G.I.S. database. The coverage was then built, the tolerances set and the attribute fields added. When the polygon boundaries were refined by Dr. Holland by reviewing the high resolution photographs, the changes were then edited in the G.I.S. database. DATA QUALITY ASSESSMENT. This coverage depicts vernal pool complexes, not individual vernal pools. The density ratings are subjective but were validated with actual point occurrence data of individual vernal pools. (For a copy of the paper "A Comparison of Two Methods of Mapping Vernal Pools contact Monica Parisi at mparisi@dfg.ca.gov.) The validation suggested that 1) dense complexes of vernal pools were being picked up by aerial photo interpretation and 2) the density ratings should not be the sole basis for identifying high priority preserve areas, especially at the local planning level. At the local level, this layer is probably best used for suggesting new areas for regional preserves, areas which may never have been considered because of the lack of information. KNOWN CAVEATS OF THE DATA. * Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site specific) conservation planning. * This layer does not contain delineations of individual vernal pools and is not intended for use for wetland delineations or regulatory use.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0036_20091104
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Beginning date 1976-01-01
Ending date 1998-06-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -122.975257
* East longitude -118.431691
* North latitude 40.685119
* South latitude 35.139501
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13689542.963500
* East longitude -13183755.484300
* South latitude 4182855.019100
* North latitude 4966007.199500
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Joe Carboni
Organization's name California Department of Fish and Wildlife, Wildlife and Habitat Data Analysis Branch
Contact's role point of contact


Contact information
Phone
Voice (916) 324-3763

Address
e-mail address Joe.Carboni@wildlife.ca.gov



Resource Maintenance

Resource maintenance
Update frequency not planned


Resource Constraints

Constraints
Limitations of use
This data-set may not be redistributed without prior written approval from Mr. Joe Carboni, Wetland Inventory Coordinator, California Department of Fish and Game (see Contact section for contact information). Graphic or textual representation of data shall include appropriate references to sources include author (Dr. Robert F. Holland), the U.S. Fish and Wildlife Service, and the California Department of Fish and Game. These data shall not be amended, edited, or revised in an manner or used inappropriately to produce inaccurate, incomplete, or misleading analyses, reports, maps, or related products. All rights in data remain the property of the U.S. Fish and Wildlife Service who reserves the right to revoke use privileges at any time.

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text 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]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 7.11.2


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS0036_20091104
* Object type composite
* Object count 1918



ArcGIS Feature Class Properties
Feature class name DS0036_20091104
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 1918
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Lineage

Process step
When the process occurred 2009-11-04
Description
Permanently joined "usfwsvp2.dbf" using the LUCODE field to the LUCODENEW field of this shapefile so it would contain the VP_DESCRIPTION field. Since the attributes of the LUCODE field was a duplication of what LUCODENEW contained, LUCODE field was deleted.


Process contact
Individual's name Greg Ewing
Organization's name California Department of Fish and Game
Contact's role processor


Contact information




Geoprocessing history

Process
Date 2007-07-1113:01:37
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued
Include in lineage when exporting metadata No


Process
Date 2009-11-0410:11:02
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2011-07-2108:26:52
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:05:29
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution

Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/001_099/ds036.zip

Fields

Details for object DS0036_20091104
* Type Feature Class
* Row count 1918
Definition
Vernal Pool Complexes - Central Valley, 1989-1998 [ds36]


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field USFWSVP2_
* Alias USFWSVP2_
* Data type Double
* Width 8
* Precision 11
* Scale 0
Field description
Polygon identification field.


Field USFWSVP2_I
* Alias USFWSVP2_I
* Data type Double
* Width 8
* Precision 11
* Scale 0
Field description
Polygon identification field.


Field LUCODEOLD
* Alias LUCODEOLD
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
Status code for each complex of vernal pools
List of values
Value 0
Description CUT_OUT: Polygons that are 'do-nut' holes within vernal pool complexes (e.g., a cultivated field surrounded by habitat).


Value 1
Description LOW DENSITY: Pools are small, widely and patchily scattered. At least 2 pools and usually 5 or more exist within the delineated complex.


Value 2
Description MEDIUM DENSITY: Pools are larger, more numerous, and more pervasively scattered, but still patchy within the delineated complex.


Value 3
Description HIGH DENSITY: Pools are all sizes and numerous. Pools are distributed over the entire delineated vernal pool complex. Also includes large, isolated playa-like pools.


Value 4
Description CULTIVATED: Pools are present and persist in spite of obvious cultivation, usually of hay crops.


Value 5
Description DEVELOPED: Pools are present and still visible in spite of subdivision into parcels smaller than minimum mapping size.


Value 6
Description MITIGATED SITE: The site is a mitigated area consisting within a vernal pool complex. (Not used in this project.)


Value 7
Description EXTIRPATED: Pools were present in earlier photos, but were gone in 1997 U2 flight photos.


Value 8
Description DISTURBED DI 1: This is a polygon/delineated complex that fits the criteria of 'density index of 1", but that is disturbed in some way or form.


Value 9
Description DISTURBED DI 2: This is a polygon/delineated complex that fits the criteria of 'density index of 2", but that is disturbed in some way or form.




Field COUNTY
* Alias COUNTY
* Data type String
* Width 20
* Precision 0
* Scale 0
Field description
This is the county in which the polygon is contained.


Field SHAPE
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.




Field DATENEW
* Alias DATENEW
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
This is the year the check was done with SPOT Imagery and U2 photography.


Field QUAD_NAME
* Alias QUAD_NAME
* Data type String
* Width 20
* Precision 0
* Scale 0
Field description
Name of USGS quadrangle (24k) where data were originally digitized from.
* Description source
ESRI
* Description of values
Coordinates defining the features.




Field DATEOLD
* Alias DATEOLD
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
This is the year of the photographs used for each county in the original 1195 aerial photo interpretation.


Field LUCODENEW
* Alias LUCODENEW
* Data type Integer
* Width 4
* Precision 10
* Scale 0
Field description
These are the 1997-1998 updates of LUCODEOLD, especially where land use changes have take place.
Description source
See codes for LUCODEOLD above.
* Description of values
Positive real numbers that are automatically generated.




Field VP_DESCRIP
* Alias VP_DESCRIP
* Data type String
* Width 56
* Precision 0
* Scale 0
Field description
Vernal Pool Description


Field Shape.STArea()
* Alias Shape.STArea()
* Data type Double
* Width 0
* Precision 0
* Scale 0




Field Shape.STLength()
* Alias Shape.STLength()
* Data type Double
* Width 0
* Precision 0
* Scale 0






Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2014-04-28


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata


Created in ArcGIS for the item 2014-03-0615:10:13
Last modified in ArcGIS for the item 2014-04-2808:55:43


Automatic updates
Have been performed Yes
Last update 2014-04-2808:55:43


Metadata Contacts

Metadata contact
Individual's name Joe Carboni
Organization's name California Department of Fish and Wildlife, Wildlife and Habitat Data Analysis Branch
Contact's role point of contact


Contact information
Phone
Voice (916) 324-3763

Address
e-mail address Joe.Carboni@wildlife.ca.gov



Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc