National Wetlands Inventory - California - USFWS [ds2630]

SDE Feature Class

Open this dataset in BIOS

Tags
USFWS, National Wetlands Inventory, environment, oceans, Deepwater habitats, NWI, Coastal waters, Hydrography, geoscientific Information, United States, Swamps, marshes, bogs, fens, Surface water, U.S. Fish and Wildlife Service, inland Waters, California


Summary

The present goal of the Service is to provide the citizens of the United States and its Trust Territories with current geospatially referenced information on the status, extent, characteristics and functions of wetlands, riparian, deepwater and related aquatic habitats in priority areas to promote the understanding and conservation of these resources.

Description

--Zoom in and this layer will draw faster on the map--

This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.

Credits

Use limitations

None. Precautions - Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. Acknowledgement of the U.S. Fish and Wildlife Service and (or) the National Wetlands Inventory would be appreciated in products derived from these data.

Extent

West -124.608506 East -113.471499
North 42.176496 South 32.421109

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 environment, oceans, geoscientificInformation, inlandWaters


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

Place keywords California

Theme keywords environment, oceans, geoscientificInformation, inlandWaters

Thesaurus
Title ISO 19115 Topic Categories




Theme keywords USFWS, National Wetlands Inventory, Deepwater habitats, NWI, Coastal waters, Wetlands, Hydrography, Swamps, marshes, bogs, fens, Surface water, U.S. Fish and Wildlife Service

Citation

Title National Wetlands Inventory - California - USFWS [ds2630]
Creation date 2018-05-0100:00:00
Publication date 2018-05-0100:00:00


Presentation formats digital map
FGDC geospatial presentation format vector digital data


Series
Name Classification of Wetlands and Deepwater Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC. FWS/OBS-79/31.

Citation Contacts

Responsible party
Organization's name U.S. Fish and Wildlife Service
Contact's role originator


Responsible party
Organization's name U.S. Fish and Wildlife Service
Contact's role publisher


Contact information
Address
Type
Delivery point Washington, D.C.



Resource Details

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


Status on-going
Spatial representation type vector


Supplemental information
Digital wetlands data are intended for use us with base maps and digital aerial photography at a scale of 1:12,000 or smaller. Due to the scale, the primary intended use is for regional and watershed data display and analysis, rather than specific project data analysis. The map products were neither designed or intended to represent legal or regulatory products. Questions or comments regarding the interpretation or classification of wetlands or deepwater habitats can be addressed by visiting http://www.fws.gov/wetlands/FAQs.html These data were developed in conjunction with the publication Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service, Washington, DC. FWS/OBS-79/31. Alpha-numeric map codes have been developed to correspond to the wetland and deepwater classifications described. For more informtion on the wetland classification codes visit http://www.fws.gov/wetlands/Data/Wetland-Codes.html . The U.S. Fish and Wildlife Service uses data standards to increase the quality and compatibility of its data. The standards used for the wetlands data can be found at: http://www.fws.gov/wetlands/Data/Data-Standards.html and include the FGDC Wetlands Mapping Standard, FGDC-STD-015-2009. Note that coastline delineations were drawn to follow the extent of wetland or deepwater features as described by this project and may not match the coastline shown in other base maps. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant and Content Standard for Digital Geospatial Metadata (CSDGM) file is intended to document the data set in nonproprietary form, as well as in Arc/INFO format, this metadata file may include some Arc/INFO-specific terminology.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.1.7333


ArcGIS item properties
* Name National Wetlands Inventory - California - USFWS [ds2630]
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Geographic extent
Bounding rectangle
West longitude 144.599995
East longitude -64.549579
South latitude 13.166674
North latitude 71.99633

Extent
Description
ground condition
Temporal extent
Beginning date 1977-01-0100:00:00
Ending date 2017-01-0100:00:00

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -124.608506
* East longitude -113.471499
* North latitude 42.176496
* South latitude 32.421109
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -381912.350900
* East longitude 541454.523700
* South latitude -604705.945100
* North latitude 461992.399700
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Organization's name U.S. Fish and Wildlife Service
Contact's position National Standards and Support Team
Contact's role point of contact


Contact information
Phone
Voice 608-238-9333
Fax 608-238-9334

Address
Type both
Delivery point 505 Science Drive
City Madison
Administrative area WI
Postal code 53711
Country US
e-mail address wetlands_team@fws.gov



Resource Maintenance

Resource maintenance
Update frequency as needed


Resource Constraints

Legal constraints
Limitations of use
Although these data have been processed successfully on a computer system at the U.S. Fish and Wildlife Service, no warranty expressed or implied is made by the U.S. Fish and Wildlife Service regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Fish and Wildlife Service in the use of these data.
Constraints
Limitations of use

None. Precautions - Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. Acknowledgement of the U.S. Fish and Wildlife Service and (or) the National Wetlands Inventory would be appreciated in products derived from these data.


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)


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS2630_20180522
* Object type composite
* Object count 0



ArcGIS Feature Class Properties
Feature class name DS2630_20180522
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Topological consistency
Evaluation method
Polygon and chain-node topology are present. Every polygon has a label.




Data quality report - Conceptual consistency
Measure description
Polygon and chain-node topology are present. Every polygon has a label.




Data quality report - Completeness omission
Measure description
This data set represents the extent of wetlands and deepwater habitats that can be determined with the use of remotely sensed data and within the timeframe for which the maps were produced. Wetlands are shown in all of the 50 states, the District of Columbia, Puerto Rico, the Virgin Islands, Guam and Saipan. The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts, the amount and quality of the collateral data, and the amount of ground truth verification work conducted. There is a margin error inherent in the use of imagery, thus detailed on-the-ground inspection of any particular site, may result in revision of the wetland boundaries or classification, established through image analysis. Wetlands or other mapped features may have changed since the date or the imagery and/or field work. There may be occasional differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site.




Data quality report - Quantitative attribute accuracy
Measure description
The source data was checked using standard review procedures. Attributes were checked by using visual inspection as well as automated verification routines. Quality of the attribute information varies with age and mapping protocols used when individual maps were prepared


Quantitative test results
Value All polygons are attributed.




Lineage

Process step
Description
The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived using an ESRI Data Model with 481 logical and topological processes. Linear NWI features retained their original NWI Code and were buffered to specific widths based on the following rules: Palustrine = 6m, Riverine Perennial = 8m, Riverine Intermittent = 6m, Marine, Estuarine and Lacustrine = 8m. The NHDFlowline features were buffered to the width based on the FType field using the following general rules: CanalDitch = 4m, Intermittent = 6m and Perennial = 6m. The NHDFlowline features were coded with NWI Codes based on the following general rules: CanalDitch/aqueduct = R5UBFr, CanalDitch/all others = R5UBFx, Intermittent Stream = R4SBC, Perennial Stream = R5UBH. Further refinement of the NWI Codes was implemented based on spatial intersect with known NWI features and specific FCode information from the NHD dataset. Topological modifications were conducted to remove overlapping features. In general buffered NWI linears were clipped into NWI polygons and both the NWI polygons and buffered NWI linears were used to erase buffered NHDFlowlines. Further topological refinements were conducted within the the buffered linear feature layers based on intersections with known NWI features and using a hierarchy based on NWI Code Sub-system and Water Regime. For more specific information on the logical and topological processes involved in deriving this dataset visit: http://www.fws.gov/wetlands/Data/Wetlands-V2-Product-Summary.html




Process step
Description
This dataset is continually updated in various areas of the Nation with wetlands data from the USFWS, other federal, state and local agencies, tribes, non-governmental organizations and universities. To identify these updated areas review the Data Source layers on the Wetlands Mapper, Projects Mapper on the Mapper homepage, or the Wetlands Project Metadata featureclass that is included in the data downloads. The Wetlands Project Metadata feature class may also include a URL to link to a document that identifies project speciic techniques, source imagery and conventions used for that specific project. All data additions comply with the the FGDC Wetlands Mapping Standard, FGDC-STD-015-2009 and the Wetlands Classification Standard, which can be found at: http://www.fws.gov/wetlands/Data/Data-Standards.html .




Process step
Description
The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data (high resolution NHD 931v210 or 931v220), buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class.




Process step
When the process occurred 2004-01-01
Description
Original stable base hard copy maps of wetland and deepwater habitats were created based on USGS state and quadrangle boundaries. These maps were converted to digital files using various software packages (WAMS, ARC and others). The digital files were stored as ESRI Import/Export files corresponding to a single 1:24,000 USGS quadrangle. These digital files were imported and converted to ESRI Coverage format and checked for topological and attribute errors. All coverages were converted from a UTM map projection to an Alber's Equal Area map projection and the horizontal datum was converted from NAD27 to NAD83 were necessary. Polygons attributed as "Uplands" were removed from the dataset and polygons were merged at quadrangle boundaries where the quadrangle line divided polygons with the same attribute. The data was loaded into a seamless SDE geodatabase for the conterminous United States. These steps were conducted using both Arc Macro Language (AML) and ArcMap editing tools. All point data from the original ESRI Coverages were buffered by 11.28 meters (1/10 of an acre) and incorporated into this polygon feature class. Further data improvements included the conversion of all old wetland codes that contained 'OW' to the new code containing 'UB', 'BB' to 'US', 'FL' to 'US', and 'SB' to 'US' except for 'R4SB' codes. Old Water Regimes were also changed, 'W' to 'A', 'Y' to 'C' and 'Z' to 'H'. All polygons labeled as 'OUT', 'No Data' and 'NP' were removed from the database.




Geoprocessing history

Process
Date 2018-05-2209:16:04
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 2018-05-2209:52:32
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Organization's name U.S. Fish and Wildlife Service
Contact's position National Standards and Support Team
Contact's role distributor


Contact information
Phone
Voice 608-268-9333
Fax 608-238-9334

Address
Type both
Delivery point 505 Science Drive
City Madison
Administrative area WI
Postal code 53711
Country US
e-mail address wetlands_team@fws.gov



Available format
Name FileGDB


Available format
Name OGC:WMS


Available format
Name ArcREST


Available format
Name JavaScript


Available format
Name KML


Available format
Name Shapefile


Ordering process
Terms and fees There is no charge for the online option. Requests for large amounts of data are handled on a cost reimbursable basis.

Transfer options
Online source
Location https://www.fws.gov/wetlands/data/Data-Download.html

Transfer options
Online source
Location https://www.fws.gov/wetlands/Data/KML/Wetlands-Data.kml

Transfer options
Online source
Location https://www.fws.gov/wetlands/data/Data-Download.html

Transfer options
Online source
Location https://www.fws.gov/wetlands/arcgis/rest/services/Wetlands/MapServer

Transfer options
Online source
Location https://www.fws.gov/wetlands/Data/Mapper.html

Transfer options
Online source
Location https://www.fws.gov/wetlands/arcgis/services/Wetlands/MapServer/WMSServer?request=GetCapabilities&service=WMS



Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://www.fws.gov/wetlands/Data/Mapper.html
Function performed information

Online source
Location http://www.fws.gov/wetlands/Data/Wetlands-Product-Summary.html
Function performed information

Online source
Location http://www.fws.gov/wetlands/data/Data-Download.html
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/2600_2699/ds2630.zip
Function performed download

Fields

Details for object DS2630_20180522
* Type Feature Class
* Row count 0
Definition
Reference: Cowardin et al. 1979
Definition source
U.S. Fish and Wildlife Service


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 OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
Field description
Internal feature number.
Description source
ESRI
List of values
Value Polygon
Description 2-dimensional element.
Enumerated domain value definition source ESRI GIS software


Description of values
Sequential unique whole numbers that are automatically generated.




Field ACRES
* Alias ACRES
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Area of the polygon in acres.
Description source
Calculated in an Albers Equal Area projection using ESRI's geometry calculator.


Field ATTRIBUTE
* Alias ATTRIBUTE
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
Alphanumeric code identifying the wetland classification of the polygon.
Description source
http://www.fws.gov/wetlands/Data/Wetland-Codes.html
Description of values
The wetland classification codes are a series of letter and number codes that have been developed to adapt the national wetland classification system to map form. These alpha-numeric codes correspond to the classification nomenclature (Cowardin et al. 1979) that best describes the habitat. (for example, PFO1A). Currently there are over 7,000 code combinations in the dataset with over 14 million possible permutations of the code. For information on the wetland codes visit: http://www.fws.gov/wetlands/Data/Wetland-Codes.html .




Field WETLAND_TYPE
* Alias WETLAND_TYPE
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
General description of the wetland based on the Cowardin wetland classification.
Description source
http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html
List of values
Value Lake
Description Lake or reservoir basin. Lacustrine wetland and deepwater (L).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Freshwater Emergent Wetland
Description Herbaceous marsh, fen, swale and wet meadow. Palustrine emergent (PEM).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Estuarine and Marine Wetland
Description Vegetated and non-vegetated brackish and saltwater marsh, shrubs, beach, bar, shoal or flat. Estuarine intertidal and Marine intertidal wetland (E2, M2).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Other
Description Farmed wetland, saline seep and other miscellaneous wetland. Palustrine wetland (Misc. types, PUS, Pf..)
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Freshwater Pond
Description Pond. Palustrine unconsolidated bottom, Palustrine aquatic bed (PUB, PAB).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Estuarine and Marine Deepwater
Description Open water estuary, bay, sound, open ocean. Estuarine and Marine subtidal water (E1, M1).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Riverine
Description River or stream channel. Riverine wetland and deepwater (R).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html


Value Freshwater Forested/Shrub Wetland
Description Forested swamp or wetland shrub bog or wetland. Palustrine forested and/or Palustrine shrub (PFO, PSS).
Enumerated domain value definition source http://www.fws.gov/wetlands/Data/Mapper-Wetlands-Legend.html




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






References

Aggregate Information
Association type cross reference


Aggregate resource name
Title Wetlands and Deepwater Habitats of the United States


Edition Version 2 - Surface Waters and Wetlands


Responsible party
Organization's name U.S. Fish and Wildlife Service
Contact's role publisher


Contact information
Address
Delivery point Washington, D.C. USA



Responsible party
Organization's name U.S. Fish and Wildlife Serivce, National Wetlands Inventory
Contact's role originator




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 2018-05-22


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 2018-05-2208:59:11
Last modified in ArcGIS for the item 2018-05-2209:16:25


Automatic updates
Have been performed Yes
Last update 2018-05-2209:16:25


Metadata Contacts

Metadata contact
Individual's name National Standards and Support Team
Organization's name U.S. Fish and Wildlife Service
Contact's position National Standards and Support Team
Contact's role point of contact


Contact information
Phone
Voice 608-238-9333
Fax 608-238-9334

Address
Type both
Delivery point 505 Science Drive
City Madison
Administrative area WI
Postal code 53711
Country US
e-mail address wetlands_team@fws.gov



Metadata Maintenance

Maintenance
Update frequency as needed


Metadata Constraints

Security constraints
Classification unclassified
Classification system None


Additional restrictions
None


Thumbnail and Enclosures