Natural Communities Commonly Associated with Groundwater - Vegetation [ds2788]

SDE Feature Class

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Tags
decadal, ecosystem, california, groundwater, groundwater, hydrogeology, vegetation, vegetation, habitat, biota, conservation, environmental resources


Summary

The purpose of the NCCAG Vegetation data set is to identify vegetation that is commonly associated with groundwater in Californias 517 Groundwater Basins defined in Bulletin 118 (2016). 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 2.1, dated March 9, 2016. The features in the data set were not created by DWR. Data were originally developed by California Department of Fish and Wildlife (CDFW), U.S. Department of Agriculture - Forest Service (USDA-FS), California Department of Forestry and Fire Protection (CDFF), and U.S. Fish and Wildlife Service (USFWS). Features in the NCCAG Vegetation data set were merely extracted from these sources under a set of defined rules and procedures. 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. The official DWR subject matter expert for this data set is Amy Lyons, who may be contacted at 530-528-7439, or at amy.lyons@water.ca.gov. The official DWR GIS Steward for this data set is Wyatt Arnold, who may be contacted at 916-653-4849, or at wyatt.arnold@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the subject matter expert or GIS Steward as available and appropriate.

Description

The Natural Communities Commonly Associated with Groundwater (NCCAG) Vegetation data set is a compilation phreatophytic vegetation from 45 publicly available state agency and federal data sets. The extracted vegetation features are considered to be commonly associated with groundwater based on published and/or field observations of phreatophytic characteristics in California.

Credits

California Department of Water Resources California Department of Fish and Wildlife The Nature Conservancy, California

Use limitations

This dataset does not prove or make any claim about the nature and/or extent of ecosystem groundwater dependence for any mapped location. Positive identification of a groundwater dependent ecosystem requires detailed understanding of groundwater levels, hydrology, and geology of an area which is not within the scope or purpose of this dataset.The data in the NCCAG dataset do not preempt the authority of local land use agencies.The data in the NCCAG dataset do not alter or infringe upon existing water rights.

Extent

West -124.453690 East -113.612027
North 42.012921 South 32.430562

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, geoscientificInformation


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

Place keywords california

Thesaurus
Title Geographic Names Information System


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Temporal keywords decadal

Theme keywords groundwater, hydrogeology, vegetation, habitat, biota, conservation, environmental resources

Thesaurus
Title http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode


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Theme keywords ecosystem, groundwater, vegetation

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Citation

Title Natural Communities Commonly Associated with Groundwater - Vegetation [ds2788]
Publication date 2018-04-0100:00:00


Edition 1


Presentation formats digital map
FGDC geospatial presentation format Vector digital data


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Citation Contacts

Responsible party
Organization's name California Department of Fish and Wildlife
Contact's role originator


Responsible party
Organization's name The Nature Conservancy
Contact's role originator


Responsible party
Organization's name California Department of Water Resources
Contact's role originator


Responsible party
Individual's name Wyatt Arnold
Organization's name California Department of Water Resources
Contact's position Engineer, Water Resources
Contact's role point of contact


Contact information
Phone
Voice 916-653-4849

Address
Type both
Delivery point 901 P St
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address wyatt.arnold@water.ca.gov

HideContact information


Responsible party
Individual's name Amy Lyons
Organization's name California Department of Water Resources
Contact's position Environmental Scientist
Contact's role point of contact


Contact information
Phone
Voice (530) 528-7439

Address
Type both
Delivery point 2440 Main Street
City Red Bluff
Administrative area CA
Postal code 96080
Country US
e-mail address amy.lyons@water.ca.gov

HideContact information


Responsible party
Individual's name Kirk Klausmeyer
Organization's name The Nature Conservancy
Contact's position Senior Spatial Data Scientist
Contact's role processor


Contact information
Phone
Voice (415) 777-0487

Address
Type postal
Delivery point 201 Mission Street, 4th Floor
City San Francisco
Administrative area CA
Postal code 94105
e-mail address kklausemeyer@tnc.org

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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


Graphic overview
File name https://www.water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Groundwater-Management/Data-and-Tools/Images/Data-Tools-Thumbs/NCCAG_Thumb.png
File description NCCAG dataset full extent map thumbnail
File type PNG

* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333


Credits
California Department of Water Resources California Department of Fish and Wildlife The Nature Conservancy, California
ArcGIS item properties
* Name Natural Communities Commonly Associated with Groundwater - Vegetation [ds2788]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

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Extents

Extent
Geographic extent
Bounding rectangle
West longitude -124.7215
East longitude -115.8749
South latitude 33.4424
North latitude 42.8514

Extent
Description
See i02_NCCAG_Sources
Temporal extent
Beginning date 1990-01-0100:00:00
Ending date 2014-01-0100:00:00

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -124.453690
* East longitude -113.612027
* North latitude 42.012921
* South latitude 32.430562
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -369915.727400
* East longitude 530987.252600
* South latitude -604287.152900
* North latitude 443861.325100
* Extent contains the resource Yes

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Resource Points of Contact

Point of contact
Individual's name Amy Lyons
Organization's name California Department of Water Resources
Contact's position Environmental Scientist
Contact's role point of contact


Contact information
Phone
Voice (530) 528-7439

Address
Type both
Delivery point 2440 Main Street
City Red Bluff
Administrative area CA
Postal code 96080
Country US
e-mail address amy.lyons@water.ca.gov

HideContact information


HideResource Points of Contact

Resource Maintenance

Resource maintenance
Update frequency as needed


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Resource Constraints

Legal constraints
Limitations of use
See access and use constraints information.
Security constraints
Classification unclassified
Classification system United States government classification system


Additional restrictions
No security restrictions


Constraints
Limitations of use

This dataset does not prove or make any claim about the nature and/or extent of ecosystem groundwater dependence for any mapped location. Positive identification of a groundwater dependent ecosystem requires detailed understanding of groundwater levels, hydrology, and geology of an area which is not within the scope or purpose of this dataset.The data in the NCCAG dataset do not preempt the authority of local land use agencies.The data in the NCCAG dataset do not alter or infringe upon existing water rights.


HideResource Constraints

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 0.001
M tolerance 0.001
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 8.8(9.3.1.2)


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Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS2788_20180821
* Object type composite
* Object count 0

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ArcGIS Feature Class Properties
Feature class name DS2788_20180821
* 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 - Topological consistency
Evaluation method
No topological tests performed.


HideData quality report - Topological consistency


Data quality report - Conceptual consistency
Measure description
No topological tests performed.


HideData quality report - Conceptual consistency


Data quality report - Completeness omission
Measure description
The California Department of Fish and Wildlife (CDFW) has compiled a set of high-resolution vegetation maps with consistent mapping and classification protocols as part of the Vegetation Classification and Mapping Program (VegCAMP). VegCAMP identifies alliances that are associated with specific dominant species. 47 VegCAMP datasets were merged to a create a statewide coverage of the data (52% of California). In cases of VegCAMP dataset overlap, the dataset with the most recent aerial imagery was chosen. After spatially intersecting the compiled VegCAMP dataset with the ecoregion subsections of California (U.S. Department of Agriculture - Forest Service 2007), each unique vegetation/ecoregion type determined to be phreatophytic in a given ecoregion was extracted into the NCCAG Vegetation dataset. Region 5 of U.S. Department of Agriculture - Forest Service has completed detailed vegetation maps for almost 75% of California as part of its California Existing Vegetation (CALVEG) program (U.S. Department of Agriculture - Forest Service 2016) . Data for each ecoregion subsections of California (U.S. Department of Agriculture - Forest Service 2007) were merged to create a composite layer for the state. Since CALVEG data identifies ecoregion for each vegetation unit, no spatial intersect was required. Each unique vegetation/ecoregion type determined to be phreatophytic in a given ecoregion was extracted into the NCCAG dataset. The California Department of Forestry and Fire Prevention has generated a multi-source vegetation layer (FVEG) as part of its Forest and Range Assessment Program (California Department of Forestry and Fire Protection 2015). This vegetation layer uses the Wildlife Habitat Relationship (WHR) vegetation type classification, which only identifies dominant species for some vegetation types. After spatially intersecting the compiled FVEG dataset with the ecoregion subsections of California (U.S. Department of Agriculture - Forest Service 2007), each unique vegetation/ecoregion type determined to be phreatophytic in a given ecoregion was extracted into the NCCAG dataset. The U.S. Fish and Wildlife Service (USFWS) has a program to map riparian vegetation in the arid regions of the United States (U.S. Fish and Wildlife Service 2009). The USFWS has only mapped riparian vegetation in about 6% of California and dominant species are only identified in 17% of the mapped riparian vegetation patches, all of which were extracted into the NCCAG dataset.


HideData quality report - Completeness omission


Data quality report - Quantitative attribute accuracy
Measure description
See i02_NCCAG_Sources table for data source attribute accuracy information and URL to source full metadata


HideData quality report - Quantitative attribute accuracy


Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
See i02_NCCAG_Sources for horizontal accuracy reports characterizing each data source.


Quantitative test results
Value 50.6


Evaluation method
Lowest positional accuracy of all source data sets (U.S. Department of Agriculture - Forest Service (USDA-FS) California Existing Vegetation (CALVEG) program)


HideData quality report - Absolute external positional accuracy


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Lineage

Lineage statement
Citation table appended to data by CDFW
Process step
When the process occurred 2018-01-0100:00:00
Description
In areas where multiple vegetation data overlapped, the data source with the more detailed vegetation classification was chosen to supersede the others. As a result, the preference order for vegetation data was: 1. VegCAMP 2. CALVEG 3. USFWS Riparian 4. FVEG. Each data source was clipped to the Bulletin 118 Interim Update 2016 Groundwater Basin boundaries (i08_B118_CA_GroundwaterBasins). Any source features underlying agricultural areas identified in the 2014 statewide Crop Mapping dataset released in 2017 (i15_Crop_Mapping_2014) were removed from the NCCAG dataset. With the exception of narrow riparian corridors, any source features underlying urban areas identified in a compilation of DWR County Land Use Surveys beginning in 2000 through 2014 and the 2014 US Department of Agriculture Cropland Data Layer were removed from NCCAG dataset. In narrow riparian corridors located in mapped urban areas, source features underlying urban areas yet within 100 meters of rivers and waterbodies as mapped in the NHDPlus V2 dataset were retained. Additional screening was done to retain source features of certain vegetation types located along alluvial floodplains as well as to remove those located on hillslopes where they are more likely to rely on surface water, rainfall, and fog drip than on groundwater. The vegetation types include those of dominant species Carex barbarae, Juglans californica, Picea sitchensis, Pinus contorta, Quercus agrifolia, or Sequoia sempervirens as well as the Desert Mixed Wash Shrub vegetation type. The US Environmental Protection Agency 2013 maps of active river areas were used to clip these vegetation types to remove hillslope areas. For the Alkali Desert Scrub vegetation type, all areas interspersed within irrigated agricultural fields were removed. For vegetation types with Distichlis spicata as the dominant species, only the mapped locations in the desert ecoregions were retained. For the Playa vegetation type, recent high-resolution satellite imagery was used to remove source features without visible vegetation stands. A high-level review of features retained in the dataset following processes described above was conducted to remove mapping errors and any features that were most likely dependent on surface water sources. Some of the processing steps mentioned above altered the geometry of the vegetation and wetland polygons to make them smaller than the minimum mapping unit for the source dataset. All features remaining in the NCCAG dataset smaller than the minimum mapping unit of its respective data source were removed. If there was no minimum mapping unit published in the metadata or associated reports for the source dataset, a minimum mapping unit of 1,000 m2 (roughly 1/4 acre) was applied. In some cases, the data source included vegetation or wetland features smaller than the published minimum mapping unit. These features were retained in the NCCAG dataset if they were identical to the polygon in the source dataset (i.e. they had not been modified by the processing steps listed above).


Process contact
Individual's name Kirk Klausmeyer
Organization's name The Nature Conservancy
Contact's position Senior Spatial Data Scientist
Contact's role processor


Contact information
Phone
Voice (415) 777-0487

Address
Type postal
Delivery point 201 Mission Street, 4th Floor
City San Francisco
Administrative area CA
Postal code 94105
e-mail address kklausemeyer@tnc.org

HideContact information


HideProcess step


HideLineage

Geoprocessing history

Process
Date 2018-08-2107:49:29
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2018-08-2107:54:50
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


HideGeoprocessing history

Distribution

Distributor
Contact information
Organization's name California Department of Water Resources
Contact's role distributor


Contact information
Phone
Voice (916) 653-5791

Address
Type both
Delivery point 901 P St
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address sgmps@water.ca.gov

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Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location https://gis.water.ca.gov/app/NCDatasetViewer/
Function performed download

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

Online source
Location ftp://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/2700_2799/ds2788.zip
Function performed download

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Fields

Details for object DS2788_20180821
* Type Feature Class
* Row count 0


Field VEGETATION_NAME
* Alias VEGETATION_NAME
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Name of the first phreatophytic vegetation species identified in the source feature (if applicable). For each vegetation type in the i02_NCCAG_Vegetation feature class, the dominant species was identified based on the vegetation type name (VEGETATION_NAME). If multiple species names were identified in the source feature, the name of the first phreatophytic vegetation species listed was chosen for the VEGETATION_NAME. If no species were identified in the source feature, a name was chosen for the VEGETATION_NAME. For the dominant species identified in the source feature, a common name (DOMINANT_COMMON_NAME) and scientific name (DOMINANT_SCIENTIFIC_NAME) were identified based on the description of the species located in the NatureServe ( http://www.natureserve.org/) database. All unique vegetation, common, and scientific names were reviewed by biologists familiar with Californias vegetation alliances.
Description source
California Department of Water Resources
Description of values
Variable characters


Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency Unknown


HideFieldVEGETATION_NAME


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.


Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency None planned


HideFieldShape


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.


Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency None planned


HideFieldOBJECTID


Field LAST_MODIFIED_DATE
* Alias LAST_MODIFIED_DATE
* Data type Date
* Width 8
* Precision 0
* Scale 0
Field description
Date record was last modified.
Description source
California Department of Water Resources
Range of values
Minimum value 1012018
Maximum value 1012024
Units of measure mmddyyyy

Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency None planned


HideFieldLAST_MODIFIED_DATE


Field SCIENTIFIC_NAME
* Alias SCIENTIFIC_NAME
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Scientific name of the dominant species (if applicable)
Description source
Varies; see i02_NCCAG_Sources
Description of values
Variable characters


Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency Unknown


HideFieldSCIENTIFIC_NAME


Field COMMON_NAME
* Alias COMMON_NAME
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Common name of the dominant species (if applicable)
HideFieldCOMMON_NAME


Field COMMENTS
* Alias COMMENTS
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Any user-provided comments.
Description source
California Department of Water Resources
Description of values
Variable characters


Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency None planned


HideFieldCOMMENTS


Field DATE_DATA_REFERS_TO
* Alias DATE_DATA_REFERS_TO
* Data type Date
* Width 8
* Precision 0
* Scale 0
Field description
Date Year the imagery was taken for mapping this vegetation polygon (note: defaults to first day of year).
Description source
Varies; see i02_NCCAG_Sources
Range of values
Minimum value 1011990
Maximum value 1012014
Units of measure mmddyyyy

Beginning date of values 1990-01-01
Ending date of values 2014-01-01


Measurement frequency None planned


HideFieldDATE_DATA_REFERS_TO


Field SOURCE_NAME
* Alias SOURCE_NAME
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Source name of the data
HideFieldSOURCE_NAME


Field SOURCE_GROUP
* Alias SOURCE_GROUP
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Source group for the collected data
HideFieldSOURCE_GROUP


Field CITATION
* Alias CITATION
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Citation for the entry
HideFieldCITATION


Field WEBSITE_URL
* Alias WEBSITE_URL
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
Website URL
HideFieldWEBSITE_URL


Field REPORT_URL
* Alias REPORT_URL
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
URL to reports with the data
HideFieldREPORT_URL


Field DATA_ACCESS_URL
* Alias DATA_ACCESS_URL
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
URL to access the data
HideFieldDATA_ACCESS_URL


Field OVERALL_CLASSIFICATION_ACCURACY
* Alias OVERALL_CLASSIFICATION_ACCURACY
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Overall classification accuracy
HideFieldOVERALL_CLASSIFICATION_ACCURACY


Field POSITIONAL_ACCURACY_METERS
* Alias POSITIONAL_ACCURACY_METERS
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Positional accuracy in meters
HideFieldPOSITIONAL_ACCURACY_METERS


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


HideFieldShape.STArea()


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


HideFieldShape.STLength()


HideDetails for objectDS2788_20180821


Overview Description
Entity and Attribute Overview
N/A


Entity and Attribute Detail Citation
N/A


HideOverview Description


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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 2018-08-21


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


Created in ArcGIS for the item 2018-08-2107:48:10
Last modified in ArcGIS for the item 2018-08-2107:49:54


Automatic updates
Have been performed Yes
Last update 2018-08-2107:49:54


HideMetadata Details

Metadata Contacts

Metadata contact
Individual's name Wyatt Arnold
Organization's name California Department of Water Resources
Contact's position Engineer, Water Resources
Contact's role point of contact


Contact information
Phone
Voice 916-653-4849

Address
Type both
Delivery point 901 P St
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address wyatt.arnold@water.ca.gov

HideContact information


HideMetadata Contacts

Thumbnail and Enclosures