Bathymetric Contours (5 foot) - Salton Sea [ds386]

SDE Feature Class

Open this dataset in BIOS

Tags
planningCadastre, sounding points, isolines, bathymetry, California, Oceans, Salton Sea, contours


Summary

This data was automated to support normal graphic products of the Salton Sea in which depth or elevation of the lake bed are required. For engineering purposes, the user should return to the original sounding points to regenerate a lake floor surface, but for cartographic depiction, this database should be sufficient.

Description

This data set contains bathymetric isolines for the Salton Sea at an interval of five feet. This data was generated from the sounding points taken by Bureau of Reclamation staff as part of a reconnaissance study perfomed for the Salton Sea Science Advisory Committee. This data has been extensively computer-generalized and manually smoothed using a graphic editor. Every fifth contour has also been coded as an index contour to mimic conventional symbolization of topography and bathymetry, and all contours have been assigned both elevation and depth.

Credits

Use limitations

Extent

West -116.085847 East -115.588550
North 33.534375 South 33.090322

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource planningCadastre, oceans


* Content type Downloadable Data


Place keywords California, Salton Sea

Theme keywords planningCadastre, Oceans

Thesaurus
Title ISO 19115 Topic Category




Theme keywords sounding points, isolines, bathymetry, contours

Citation

* Title DS0386_20071101


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Kenneth C. Althiser
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
Initially upon generation, many contours overlapped as an artifact of the arc interpolation techniques, and due to the state of the points, which display anomalous linear patterns indicative of a certain degree of error within specific transects. These linear patterns were largely filtered out in generating the isolines, but some topographic features suggestive of islands may be remaining artifacts of the data points and their interpolation. This data is considered preliminary, and will be updated once additional shoreline and sounding data becomes available.
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0386_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 -116.085847
* East longitude -115.588550
* North latitude 33.534375
* South latitude 33.090322
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -12922617.413000
* East longitude -12867258.574500
* South latitude 3907298.814600
* North latitude 3966450.044100
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Kenneth C. Althiser
Organization's name Redlands Institute, University of Redlands
Contact's position Senior GIS Analyst
Contact's role point of contact


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

Address
Type both
Delivery point 1200 East Colton Avenue
Delivery point PO Box 3080
City Redlands
Administrative area CA
Postal code 92373
Country United States of America
e-mail address ken_althiser@institute.redlands.edu



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 DS0386_20071101
* Object type composite
* Object count 905



ArcGIS Feature Class Properties
Feature class name DS0386_20071101
* Feature type Simple
* Geometry type Polyline
* Has topology FALSE
* Feature count 905
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Topological consistency
Evaluation method
The data is complete, and was checked for topological consistency using the ArcInfo command CLEAN, and the linework was verified using the ArcInfo command BUILD using the LINE option.




Data quality report - Conceptual consistency
Measure description
The data is complete, and was checked for topological consistency using the ArcInfo command CLEAN, and the linework was verified using the ArcInfo command BUILD using the LINE option.




Data quality report - Completeness omission
Measure description
The dataset was generalized from the contours initially generated from the sounding point data provided using a weed tolerance of twentyfive meters and a degree of triangular subdivision of five for contour smoothing.




Data quality report - Quantitative attribute accuracy
Measure description
The data fields have been filled in such that attribute accuracy is considered to be 100%, which has been manually verified in ArcMap.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Estimated to be +/- five feet.




Lineage

Process step
Description
Original bathymetric sounding points were used to generate a TIN model, which was then clipped to the boundary (shoreline) of the Salton Sea. Bathymetric isolines (contours) were then generated using the TINCONTOUR command, and the resulting coverage was editing in ARCEDIT to eliminate overlaps in the contours, and "spike" errors which extended shoreward onto land from the Sea. The linework was assigned attributes and run through standard quality assurance measures.


Process contact
Individual's name Althiser, Kenneth C.
Organization's name Redlands Institute, University of Redlands
Contact's position Senior GIS Analyst
Contact's role processor


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





Geoprocessing history

Process
Process name Project_1
Date 2007-11-0114:44:48
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 2011-07-2108:54:50
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:55:15
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/

Fields

Details for object DS0386_20071101
* Type Feature Class
* Row count 905


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




Field TNODE_
* Alias TNODE_
* Data type Integer
* Width 4
* Precision 10
* 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 ELEVATION
* Width 8
* Output width 12
* Data type Double
* Alias ELEVATION
* Precision 19
* Scale 11
Field description
Elevation in Meters from Mean Sea Level (floating point decimal)


Field SHORE
* Width 1
* Output width 1
* Data type String
* Alias SHORE
* Precision 0
* Scale 0
Field description
Elevation in Meters Relative to Mean Sea Level (Integer)


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




Field LENGTH
* Width 8
* Output width 18
* Data type Double
* Alias LENGTH
* Precision 19
* Scale 11
* Field description
Length of feature in internal units.
* Description source
ESRI
* Description of values
Positive real numbers that are automatically generated.




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




Field CONTOUR
* Width 4
* Output width 5
* Data type Integer
* Alias CONTOUR
* Precision 10
* Scale 0
Field description
Indicates whether a given feature is part of the current shoreline


Field BATH_CONT5
* Alias BATH_CONT5
* Data type Integer
* Width 4
* Precision 10
* Scale 0




Field BATH_CON_1
* Alias BATH_CON_1
* Data type Integer
* Width 4
* Precision 10
* Scale 0




Field INDEX_
* Alias INDEX_
* 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.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 2014-03-0616:12:48
Last modified in ArcGIS for the item 2014-04-2810:26:37


Automatic updates
Have been performed Yes
Last update 2014-04-2810:26:37


Metadata Contacts

Metadata contact
Individual's name Kenneth C. Althiser
Organization's name Redlands Institute, University of Redlands
Contact's position Senior GIS Analyst
Contact's role point of contact


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

Address
Type both
Delivery point 1200 East Colton Avenue
Delivery point PO Box 3080
City Redlands
Administrative area CA
Postal code 92373
Country United States of America
e-mail address ken_althiser@institute.redlands.edu



Metadata Maintenance

Maintenance
Update frequency unknown


Other maintenance requirements
Last metadata review date: 20030724


Metadata Constraints

Security constraints
Classification unclassified
Classification system None


Additional restrictions
None


Thumbnail and Enclosures

Thumbnail

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