Snag Fields and Roosting and Nesting Sites - Salton Sea [ds393]

SDE Feature Class

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Download this dataset

Tags
Black-crowned Night Heron, Cattle Egret, Riverside County, Salton Basin, Salton Sea, snags, Double-crested Cormorant, bird survey, Caspian Tern, location, Black Skimmer, avian resources, Great Egret, Brown Pelican, Imperial County, population count, Salton Sink, Salton Trough, Snowy Egret, California Gull, biota, Laughing Gull, rookeries, California, Great Blue Heron, Gull-billed Tern


Summary

This data was assembled to provide an overview of on-water or nearshore avian resources used by the birds around the Salton Sea, with special focus on roosting and nesting sites, especially snag fields, but also including duck blinds, submerged houses and barges, telephone polls, etc. These features also constitute hazards to navigation on the Salton Sea.

Description

This data set shows all the on-water or very nearshore avian resources used for nesting and roosting by specific bird species of interest around the Salton Sea. Initial data capture was by Ken Sturm, but later supplemented by other workers, including Kathy Molina. GPS readings, text descriptions and imagery were used to generate polygons of interest. In some cases, the features were essentially points (specific duck blinds, or a partially submerged barge), but were converted into polygons by buffering. Other features were encompassed by GPS readings, and still others were interpreted from aerial imagery. All sites were attributed according to whether the site was used historically for nesting or roosting by any of a suite of specific bird species, and particularly to indicate if the site was used in 1999, when the surveys were made. These features also constitute on-water hazards for navigational purposes.

Credits

Redlands Institute, University of Redlands

Use limitations

Extent

West -116.079532 East -115.504587
North 33.529222 South 33.007307

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource inlandWaters, location, biota


* Content type Downloadable Data


Place keywords Riverside County, Salton Basin, Salton Sea, Imperial County, Salton Sink, Salton Trough, California

Theme keywords Black-crowned Night Heron, Cattle Egret, snags, Double-crested Cormorant, bird survey, Caspian Tern, Black Skimmer, avian resources, Great Egret, Brown Pelican, population count, Snowy Egret, California Gull, Laughing Gull, rookeries, Great Blue Heron, Gull-billed Tern

Theme keywords location, biota

Thesaurus
Title ISO 19115 Topic Category




Citation

* Title DS0393_20071101
Publication date 2002-01-01


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Redlands Institute, University of Redlands
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
Several different methods of data handling and normalization were used in the construction of this layer. Some snags were nearly too small to be seen, and their location can be considered approximated. In some cases, specific GPS points were captured for a given snag, but snags were generally aggregated into "fields", and studied collectively.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


Credits
Redlands Institute, University of Redlands
ArcGIS item properties
* Name DS0393_20071101
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
publication date
Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -116.079532
* East longitude -115.504587
* North latitude 33.529222
* South latitude 33.007307
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -12921914.443500
* East longitude -12857911.801300
* South latitude 3896273.841400
* North latitude 3965761.905400
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Ken Althiser
Organization's name Redlands Institute, University of Redlands
Contact's role point of contact


Contact information
Phone
Voice 909-335-5268
Fax 909-307-6952

Address
Type both
Delivery point 1200 E Colton
City Redlands
Administrative area CA
Postal code 92373
Country US



Resource Maintenance

Resource maintenance
Update frequency not planned


Resource Constraints

Security constraints
Classification unclassified
Classification system None


Additional restrictions
None


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 DS0393_20071101
* Object type composite
* Object count 62



ArcGIS Feature Class Properties
Feature class name DS0393_20071101
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 62
* 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 present.




Data quality report - Conceptual consistency
Measure description
Polygon and chain-node topology present.




Data quality report - Completeness omission
Measure description
The data set has no generalization, and no data was intentionally omitted.




Data quality report - Quantitative attribute accuracy
Measure description
The data set has been reviewed and is considered to be 99% accurate.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Estimated to be +/- 40 feet


Quantitative test results
Value +/- 40 feet




Lineage

Process step
Description
This data was started by GPS readings, text descriptions and maps generated during field work by Ken Sturm of USFWS. This work was turned over to the Redlands Institute for automation. Some features, being point in nature, were buffered to provide a polygon area. Others snag fields were encompassed by Sturm in a boat. Other features were taken from text descriptions, and the features were then photo-interpreted from DOQQ imagery. All features were attributed according to historical usage of the site by various species of interest, and in particular, if the site was used by a given species in 1999. Other attributes indicate rookery name, alternate labels, and other information.


Process contact
Individual's name Ken Althiser
Organization's name Redlands Institute, University of Redlands
Contact's role processor


Contact information
Phone
Voice 909-335-5268
Fax 909-307-6952





Source data
Resolution of the source data
Scale denominator 24



Geoprocessing history

Process
Process name Project_6
Date 2007-11-0115:35:36
Tool location C:\Documents and Settings\kwhite\Application Data\ESRI\ArcToolbox\My Toolboxes\1MyTools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2011-07-2108:55:23
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:56:21
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 ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds393.zip

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

Fields

Details for object DS0393_20071101
* Type Feature Class
* Row count 62
Definition
Polygon Attribute Table


Field ROOKERYNAM
* Alias ROOKERYNAM
* Data type String
* Width 30
* Precision 0
* Scale 0




Field GBH1999
* Alias GBH1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Field description
Indicates whether the site was used by Great Blue Herons in 1999.
Description source
Ken Sturm and Kathy Molina


Field ROOKERYTEX
* Alias ROOKERYTEX
* Data type String
* Width 20
* Precision 0
* Scale 0




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 DOQQ_NAME
* Alias DOQQ_NAME
* Width 12
* Output width 12
* Data type String
* Precision 0
* Scale 0
Field description
Digitial Orthophoto Quadrangle upon which interpretation was done.
Description source
Image interpretor (Ken Althiser)


Field LABEL
* Width 1
* Output width 1
* Data type String
* Alias LABEL
* Precision 0
* Scale 0
Field description
Indicates which features should be labeled for cartographic purposes.
Description source
Map producer (Ken Althiser)


Field SNOWYEGRET
* Alias SNOWYEGRET
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Field description
Indicates whether the site has been used historically by the Snowy Egret.
Description source
Ken Sturm and Kathy Molina


Field GE1999
* Alias GE1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Great Egret in 1999.


Field CT1999
* Alias CT1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Caspian Terns in 1999.


Field BP1999
* Alias BP1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Brwon Pelicans in 1999.


Field GBT1999
* Alias GBT1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Gull-billed Terns in 1999.


Field BCNH1999
* Alias BCNH1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Black-crowned Night Herons in 1999.


Field CG1999
* Alias CG1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by California Gulls in 1999.


Field SS_SNAGS_
* Alias SS_SNAGS_
* Data type Integer
* Width 4
* Precision 10
* Scale 0




Field SS_SNAGS_I
* Alias SS_SNAGS_I
* Data type Integer
* Width 4
* Precision 10
* Scale 0




Field DCC1999
* Alias DCC1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Double-crested Cormorants in 1999.


Field GREATEGRET
* Alias GREATEGRET
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Field description
Indicates whether Great Egrets have utilized the site historically.
Description source
Ken Sturm and Kathy Molina


Field FEATURENAM
* Alias FEATURENAM
* Data type String
* Width 25
* Precision 0
* Scale 0




Field BS1999
* Alias BS1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Black Skimmers in 1999.


Field GREATBLUEH
* Alias GREATBLUEH
* Data type String
* Width 1
* Precision 0
* Scale 0




Field CE1999
* Alias CE1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Cattle Egrets in 1999.


Field DCCORMORAN
* Alias DCCORMORAN
* Data type String
* Width 1
* Precision 0
* Scale 0




Field SE1999
* Alias SE1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Snowy Egrets in 1999.


Field CASPIANTER
* Alias CASPIANTER
* Data type String
* Width 1
* Precision 0
* Scale 0




Field LG1999
* Alias LG1999
* Width 1
* Output width 1
* Data type String
* Precision 0
* Scale 0
Description source
Ken Sturm and Kathy Molina
Field description
Indicates whether the site was used by Laughing Gulls in 1999.


Field BLACKSKIMM
* Alias BLACKSKIMM
* Data type String
* Width 1
* Precision 0
* Scale 0




Field MASSEYNAME
* Width 30
* Output width 30
* Data type String
* Alias MASSEYNAME
* Precision 0
* Scale 0
Field description
Indicates alternate names by which Barbara Massey wants features labeled.
Description source
Barbara Massey


Field BROWNPELIC
* Alias BROWNPELIC
* Data type String
* Width 1
* Precision 0
* Scale 0




Field SOURCE
* Width 10
* Output width 10
* Data type String
* Alias SOURCE
* Precision 0
* Scale 0
Field description
Indicates which person/process is responsible for configuration of feature.
Description source
GPS, photointerpretation, field work


Field CATTLEEGRE
* Alias CATTLEEGRE
* Data type String
* Width 1
* Precision 0
* Scale 0




Field GULLBILLED
* Alias GULLBILLED
* Data type String
* Width 1
* Precision 0
* Scale 0




Field BCNIGHTHER
* Alias BCNIGHTHER
* Data type String
* Width 1
* Precision 0
* Scale 0




Field CALIFORNIA
* Alias CALIFORNIA
* Data type String
* Width 1
* Precision 0
* Scale 0




Field MASSEYLABE
* Alias MASSEYLABE
* Data type String
* Width 1
* Precision 0
* Scale 0




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 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


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 2014-03-0616:13:22
Last modified in ArcGIS for the item 2014-04-2810:27:55


Automatic updates
Have been performed Yes
Last update 2014-04-2810:27:55


Metadata Contacts

Metadata contact
Individual's name Ken Althiser
Organization's name Redlands Institute, University of Redlands
Contact's role point of contact


Contact information
Phone
Voice 909-335-5268
Fax 909-307-6952

Address
Type both
Delivery point 1200 E Colton
City Redlands
Administrative area CA
Postal code 92373
Country US



Metadata Constraints

Security constraints
Classification unclassified
Classification system None


Additional restrictions
None


Thumbnail and Enclosures

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