Vernal Pool Distribution - Central Valley - 2005 [ds650]

File Geodatabase Feature Class

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Tags
Great Valley, biota, Vernal Pools, environment, San Joaquin Valley, Sacramento Valley, Hogwallows, California, 2005


Summary

Map showing the distribution of vernal pools in the Great Valley (California) as of publication of the Recovery Plan for Vernal Pool Ecosystems of California and Southern Oregon (U.S. Fish and Wildlife Service, 2005).

Description

We mapped vernal pool distribution within a 21.4 million acre area surrounding the Great Valley from 2005 National Agricultural Imaging Program (NAIP) county photomosaics using ESRI ArcMap 9.x in a double-blind protocol. Each mapped polygon was scored for classes of habitat cover, habitat density, habitat diversity, disturbance cover, and disturbance intensity. Ground truth sampled 25% of the polygons we drew; the double blind protocol lowered our error rate to about 2 percent. We mapped 807,820 acres of vernal pool landscape in 1,909 polygons and present various tabular summaries of polygon number and acreage by recorded attribute. We overlaid our results with a map of Core Recovery Areas (CRAs), finding 452,012 acres within the CRAs, and an additional 120,137 acres immediately contiguous to the CRAs.

Credits

Carol W. Witham, Robert F. Holland and John Vollmar. 2013. 2005 Great Valley Vernal Pool Map, Plus Merced, Placer and Sacramento County Losses 2005-2010. Sacramento, CA. Report prepared for the U.S. Fish and Wildlife Service's and Bureau of Reclamation's CVPIA Habitat Restoration Program under Grant Agreement No. 80270-A-G509 with the USFWS.

Use limitations

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.

Credit authors.

Extent

West -122.560934 East -118.889500
North 40.691536 South 35.375931

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords Great Valley, San Joaquin Valley, Sacramento Valley, California

Temporal keywords 2005

Theme keywords Vernal Pools, Hogwallows

Theme keywords biota, environment

Thesaurus
Title ISO 19115 Topic Category


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Citation

Title Vernal Pool Distribution - Central Valley - 2005 [ds650]
Publication date 2013-02-2500:00:00


Presentation formats * digital map


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Citation Contacts

Responsible party
Organization's name Robert F. Holland
Contact's role originator


Responsible party
Contact's role publisher


Contact information
Address
Delivery point Sacramento, CA

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Responsible party
Organization's name John Vollmar
Contact's role originator


Responsible party
Organization's name Carol W. Witham
Contact's role originator


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Resource Details

Dataset languages English(UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format


Status completed
Spatial representation type * vector


Supplemental information
Polygons were sketched onto 2005 NAIP imagery by two independent mappers: Carol W. Witham and Robert F. Holland. Maps were reconciled by the mappers on a polygon-by-polygon basis with the best boundaries and attributes for each discussed and chosen before moving onto the next polygon. Note: For an associated dataset showing changes between 2005 and 2010 in some counties please see Vernal Pool Distribution, Merced, Placer & Sac. Counties, 2010 [ds780].
* Processing environment Microsoft Windows 10 Version 10.0 (Build 19044) ; Esri ArcGIS 12.8.3.29751


Credits
Carol W. Witham, Robert F. Holland and John Vollmar. 2013. 2005 Great Valley Vernal Pool Map, Plus Merced, Placer and Sacramento County Losses 2005-2010. Sacramento, CA. Report prepared for the U.S. Fish and Wildlife Service's and Bureau of Reclamation's CVPIA Habitat Restoration Program under Grant Agreement No. 80270-A-G509 with the USFWS.
ArcGIS item properties
* Name ds650
* Location file://\\geodata.\bios\WorkArea\BIOSOnline\Refresh\TODOData\BIOSOnlineData.gdb
* Access protocol Local Area Network

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Extents

Extent
Description
ground condition
Temporal extent
Date and time 2005-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -122.560934
* East longitude -118.889500
* North latitude 40.691536
* South latitude 35.375931
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -216562.833100
* East longitude 93889.755900
* South latitude -290716.754600
* North latitude 297258.917100
* Extent contains the resource Yes

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Resource Points of Contact

Point of contact
Individual's name Carol W. Witham
Contact's position Co-author
Contact's role point of contact


Contact information
Phone
Voice 916-452-5440

Address
Type both
Delivery point 1141 37th Street
City Sacramento
Administrative area CA
Postal code 95816-5415
Country US
e-mail address carolwwitham@gmail.com

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Resource Maintenance

Resource maintenance
Update frequency not planned


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Resource Constraints

Legal constraints
Other constraints
Public domain
Security constraints
Classification unclassified


Constraints
Limitations of use

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.

Credit authors.


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Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_North_American_1983
* Projection NAD_1983_California_Teale_Albers
* Coordinate reference details
Projected coordinate system
Well-known identifier 3310
X origin -16909700
Y origin -8597000
XY scale 10000
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3310
Well-known text PROJCS["NAD_1983_California_Teale_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-4000000.0],PARAMETER["Central_Meridian",-120.0],PARAMETER["Standard_Parallel_1",34.0],PARAMETER["Standard_Parallel_2",40.5],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3310]]

Reference system identifier
* Value 3310
* Codespace EPSG
* Version 6.8(9.2.0)


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Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name ds650
* Object type composite
* Object count 0

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ArcGIS Feature Class Properties
Feature class name ds650
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE

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Data Quality

Scope of quality information
Resource level dataset


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Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Map was produced using heads up digitizing on 2005 NAIP county mosaic imagery. The mapping was done independently by Carol W. Witham and Robert F. Holland. As each county was completed, the two mappers met to reconcile the maps. This reconciliation was done on a polygon-by-polygon basis. Any discrepancies were discussed and the best fitting polygon shape and attribution were determined for each polygon. This reconciliation resulted in each polygon being reviewed at least three times (in the few cases where one of the mappers missed the feature), but usually four times.


Quantitative test results
Value Minimum Mapping Unit


Evaluation method
No minimum mapping unit was established prior to mapping. The map therefore suffers from shortfalls related to economy of scale. In small polygons, the mappers were more likely to subtract small cutouts for buildings, corrals or staging areas. In larger polygons, the same size cutout was often overlooked simply because it was small in proportion to the landscape being mapped.


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Data quality report - Absolute external positional accuracy


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Geoprocessing history

Process
Date 2022-04-1911:23:53
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2022-04-1911:24:12
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2022-04-1911:24:28
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Rename
Command issued
Include in lineage when exporting metadata No


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Distribution

Distribution format
* Name File Geodatabase Feature Class


Transfer options
Online source
Location https://wildlife.ca.gov/Data/BIOS
Function performed information

Online source
Location http://www.vernalpools.org/
Function performed information

Online source
Location https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/600_699/ds650.zip
Function performed download

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Fields

Details for object ds650
* Type Feature Class
* Row count 0
Definition
Polygons representing vernal pool landscapes and individual vernal pools
Definition source
Witham/Holland


Field SHAPE_Area
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 0
* Scale 0
* Field description
Area of feature in internal units squared.
* Description source
ESRI
* Description of values
Positive real numbers that are automatically generated.


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Field OBJECTID
* Alias FEATURE
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.


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Field SHAPE
* Alias COVER_VPs
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.


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Field FEATURE
* Alias DENSITY_VPs
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Vernal pool matrix or individual pool
Description source
Witham/Holland
List of values
Value 0
Description Vernal pool matrix


Value 1
Description Individual vernal pool


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Field COVER_VPs
* Alias DIVERSITY_VPs
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Cover of vernal pools by cover class
Description source
Witham/Holland
List of values
Value 0
Description <2% cover of vernal pools


Value 1
Description 2-5% cover of vernal pools


Value 2
Description 5-10% cover of vernal pools


Value 3
Description >10% cover of vernal pools


Value 4
Description 100% (individual pool / stockpond)


HideFieldCOVER_VPs


Field DENSITY_VPs
* Alias NUMBER_LargePools
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Qualitative density assessment
Description source
Witham/Holland
List of values
Value 0
Description Low


Value 1
Description Medium


Value 2
Description High


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Field DIVERSITY_VPs
* Alias DISTURBANCE_Area
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Qualitative diversity assessment
Description source
Witham/Holland
List of values
Value 0
Description Low


Value 1
Description Medium


Value 2
Description High


HideFieldDIVERSITY_VPs


Field NUMBER_LargePools
* Alias DISTURBANCE_Type
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of large pools per polygon
Description source
Witham/Holland
List of values
Value 0
Description None in polygon


Value 1
Description <1 per 640 acres


Value 2
Description 1-3 per 640 acres


Value 3
Description 4+ per 640 acres


HideFieldNUMBER_LargePools


Field DISTURBANCE_Area
* Alias DISTURBANCE_Intensity
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Cover of disturbance by cover class
Description source
Witham/Holland
List of values
Value 0
Description <1% of polygon


Value 1
Description 1-5% polygon


Value 2
Description 5-25% of polygon


Value 3
Description 25-50% of polygon


Value 4
Description 50-99% of polygon


Value 5
Description 100% of polygon


HideFieldDISTURBANCE_Area


Field DISTURBANCE_Type
* Alias HABITAT_Notes
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Dominant type of disturbance
Description source
Witham/Holland
List of values
Value 0
Description None / unknown


Value 1
Description Plowing, disking or grading


Value 2
Description OHV use


Value 3
Description Ranch roads


Value 4
Description Paved roads


Value 5
Description Ag runoff (altered hydrology)


Value 6
Description Agricultural residential


Value 7
Description Managed wetlands (duck ponds)


Value 8
Description Mitigation banks (created vernal pools)


HideFieldDISTURBANCE_Type


Field DISTURBANCE_Intensity
* Alias MAPPING_Notes
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Qualitative assessment of intensity of disturbance
Description source
Witham/Holland
List of values
Value 0
Description Low


Value 1
Description Medium


Value 3
Description High


HideFieldDISTURBANCE_Intensity


Field HABITAT_Notes
* Alias COUNTY
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
Notes on habitat observations
Description source
Witham/Holland
HideFieldHABITAT_Notes


Field MAPPING_Notes
* Alias Visited
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Notes used during heads up digitizing
Description source
Witham/Holland
HideFieldMAPPING_Notes


Field COUNTY
* Alias Shape
* Data type Geometry
* Width 0
* Precision 0
* Scale 0
Field description
County in which habitat polygon occurs
Description source
Witham/Holland
* Description of values
Coordinates defining the features.


HideFieldCOUNTY


Field Visited
* Alias Acres
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Annotation of whether or not a polygon was visited during ground truth
Description source
Witham/Holland
List of values
Value 0
Description Not visited


Value 1
Description Visited


HideFieldVisited


Field Shape
* Alias Observed
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.


HideFieldShape


Field Acres
* Alias GT_Notes
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Acres calculated from Shape_area
Description source
Witham/Holland
Description of values
Calculated as Shape_area/4046.825 m2/acre


HideFieldAcres


Field Shape_Length
* Alias Shape_Length
* Data type Double
* Width 8
* Precision 0
* Scale 0
* Field description
Length of feature in internal units.
* Description source
ESRI
* Description of values
Positive real numbers that are automatically generated.


HideFieldShape_Length


Field Observed
* Alias Shape_Area
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Observed condition during ground truth
Description source
Witham/Holland
List of values
Value 0
Description Not visited


Value 1
Description Habitat extant


Value 2
Description Converted to hay ground


Value 3
Description Converted to orchard


Value 4
Description Converted to vineyard


Value 5
Description No vernal pools, but clay flats (REMOVED)


Value 6
Description Bare plowed ground


Value 7
Description Lots of topo, no vernal pools (REMOVED)


Value 8
Description Converted to alfalfa


Value 9
Description Alkali sink, no pools observed from road


Value 10
Description Converted to intensive ag


Value 11
Description No vernal pool habitat (REMOVED)


Value 12
Description Converted to urban/commercial


* Description of values
Positive real numbers that are automatically generated.


HideFieldObserved


Field GT_Notes
* Alias GT_Notes
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Notes taken during ground truth
Description source
Witham/Holland
HideFieldGT_Notes


Field SHAPE_Length
* Alias Shape_Length
* Data type Double
* Width 8
* Precision 0
* Scale 0
* Field description
Length of feature in internal units.
* Description source
ESRI
* Description of values
Positive real numbers that are automatically generated.


HideFieldSHAPE_Length


Field Shape_Area
* Alias Shape_Area
* Data type Double
* Width 8
* Precision 0
* Scale 0
* Field description
Area of feature in internal units squared.
* Description source
ESRI
* Description of values
Positive real numbers that are automatically generated.


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Overview Description


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References

Aggregate Information
Association type cross reference


Aggregate resource name
Title 2005 Great Valley Vernal Pool Map, plus Merced, Placer and Sacramento County losses 2005-2010


Responsible party
Organization's name Robert F. Holland
Contact's role originator


Responsible party
Organization's name Carol W. Witham
Contact's role originator


Responsible party
Organization's name John Vollmar
Contact's role originator


Responsible party
Contact's role publisher


Contact information
Address
Delivery point Sacramento, CA

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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 2022-04-19


ArcGIS metadata properties
Metadata format ArcGIS1.0
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2022-04-1911:24:07
Last modified in ArcGIS for the item 2022-04-1911:23:49


Automatic updates
Have been performed Yes
Last update 2022-04-1911:23:49


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Metadata Contacts

Metadata contact
Individual's name Carol W. Witham
Contact's position Co-author
Contact's role point of contact


Contact information
Phone
Voice 916-452-5440

Address
Type both
Delivery point 1141 37th Street
City Sacramento
Administrative area CA
Postal code 95816-5415
Country US
e-mail address cwitham@ncal.net

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Metadata Maintenance

Maintenance
Update frequency not planned


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Metadata Constraints

Security constraints
Classification unclassified


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