Virginia Designated Scenic Rivers of Loudoun County (2016)

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Loudoun County, Virginia, Office of Mapping and Geographic Information (OMAGI)
Publication_Date: 20130301
Title: Virginia Designated Scenic Rivers of Loudoun County (2016)
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details:
These creeks are represented in the Loudoun County GIS using the base map drainage data, which is collected via a planimetric update process from aerial photography and processed for a cartographic representation at 1:2400 Scale, and are mapped to NMAS.
Description:
Abstract:
The Virginia Scenic Rivers Program was enabled by the Virginia Scenic Rivers Act of 1970. Within Loudoun County are two Virginia-designated scenic rivers - Catoctin Creek from the town of Waterford to the confluence of the Potomac, and Goose Creek from the confluence of the north and south prongs near Linden to the confluence of the Potomac.
Purpose:
These creeks are represented in the Loudoun County GIS using the base map drainage data, which is collected via a planimetric update process from aerial photography and processed for a cartographic representation at 1:2400 Scale, and are mapped to NMAS. As the designation is to the main trunk of each stream, tributaries were removed and the centerlines were dissolved by name.
For more information on the Virginia Scenic Rivers Act, please visit the Virginia Department of Conservation and Recreation website at <http://www.dcr.virginia.gov/recreational_planning/srmain.shtml>.
Supplemental_Information:
Data are stored in the corporate ArcSDE Geodatabase as a polyline feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN, Vertical datum, NAVD88, US Survey foot units.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.820954
East_Bounding_Coordinate: -77.474710
North_Bounding_Coordinate: 39.279352
South_Bounding_Coordinate: 38.977379
Keywords:
Theme:
Theme_Keyword_Thesaurus: none; employee generated
Theme_Keyword: ScenicRivers, Streams, Creeks
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: inlandWaters
Place:
Place_Keyword_Thesaurus: none; employee generated
Place_Keyword: County
Place_Keyword: Loudoun
Place_Keyword: Catoctin Creek
Place_Keyword: Virginia
Place_Keyword: Goose Creek
Access_Constraints: None
Use_Constraints:
These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, VA, (OMAGI
Contact_Address:
Address_Type: mailing and physical
Address: MS 65
Address: 1 Harrison Street SE, 2nd Floor
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Country: US
Contact_Voice_Telephone: (703)771-5778
Contact_Facsimile_Telephone: (703)771-5075
Contact_Electronic_Mail_Address: mapping@loudoun.gov
Hours_of_Service: 8:00-4:30 EST, M-F
Native_Data_Set_Environment:
Microsoft Windows Server 2008 Version 6.0 (Build 6002) Service Pack 2; ESRI ArcGIS 10.0.5.4400
Data_Quality_Information:
Attribute_Accuracy:
Logical_Consistency_Report: Topologically clean
Completeness_Report:
Base Map features have been updated from different sources and in different years. Although the entire county was originally mapped, users should be cautious and aware that any particular area of interest may not be absolutely current and up to date. A generalized map of update years can be located at the OMAGI's webpage.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Lineage:
Process_Step:
Process_Description:
Tributaries were removed.
Process_Date: 20130226
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, OMAGI
Process_Step:
Process_Description:
As the designation is to the main trunk of each stream, tributaries were removed and the centerlines were dissolved by name.
Process_Date: 20130328
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County OMAGI
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Loudoun County
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 4
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 38.03333333333333
Standard_Parallel: 39.2
Longitude_of_Central_Meridian: -78.5
Latitude_of_Projection_Origin: 37.66666666666666
False_Easting: 11482916.66666666
False_Northing: 6561666.666666666
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00020833333333333297
Ordinate_Resolution: 0.00020833333333333297
Planar_Distance_Units:
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: GISDBB.GISBROW.SCENIC_RIVERS_POLY
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: WA_UPD_DATE
Attribute_Definition: Feature creation or modification date
Attribute_Definition_Source: Loudoun County
Attribute_Domain_Values:
Unrepresentable_Domain: user generated text
Attribute:
Attribute_Label: WA_TYPE
Attribute_Definition: Classification of Water Type
Attribute_Definition_Source: Loudoun County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: See Entity and Attribute Detail Citation for Data Dictionary
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: Name
Attribute:
Attribute_Label: DB2GSE.ST_Area(SHAPE)
Attribute:
Attribute_Label: DB2GSE.SdeLength(SHAPE)
Overview_Description:
Entity_and_Attribute_Overview:
WA_TYPE: Designation of water type code description ---- ------------------ 1 Double line stream 4 Lake or Pond 7 Dry Stormwater Retention Pond 10 Potomac River 11 Swamp/Marsh
Entity_and_Attribute_Detail_Citation:
Feature Depiction Descriptions based on USACE publication, EM 1110-1-1000, July 31, 2002 and further developed according to Loudoun County Data Dictionary.
Double line Stream [Type = 1] Digitize shorelines of streams, creeks or rivers wider than 15 ft, may or may not be navigable. Includes area hidden under bridges. ----------------------------------------------------------------- Lake or Pond [Type = 4] Shoreline of a large inland body of usually fresh water with a minimum area of 50' x 50' or .05 acre. Show man-made reservoirs as lakes. Ponds are bodies of standing water much smaller than a lake, often man-made. Water elevation attributed for all lakes and ponds greater than 1/10th of an acre. ----------------------------------------------------------------- Dry Retention Pond [Type = 7] Manmade stormwater retention pond typically associated with flood control structure and/or berm. Typically dry, but may contain marsh vegetation, takes precedence over marsh/swamp. Digitize at top of berm. This feature will not be attributed with a WA_WELEV value, but rather shall usually contain a spot elevation at the lowest point inside the smallest enclosed contour. ----------------------------------------------------------------- Potomac River [Type = 10] Digitize shorelines & islands of Potomac River bounding the County to the north. ----------------------------------------------------------------- Swamp or Marsh [Type = 11] Area of spongy, wet ground, usually harboring vegetation. No distinction is made between a swamp, marsh, or inundated area.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, VA, OMAGI
Contact_Position: Public Information Counter
Contact_Address:
Address_Type: mailing and physical
Address: MS 65
Address: 1 Harrison Street SE, 2nd Floor
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Country: US
Contact_Voice_Telephone: (703)771-5778
Contact_Facsimile_Telephone: (703)771-5075
Contact_Electronic_Mail_Address: mapping@loudoun.gov
Hours_of_Service: 8:00-4:30 EST, M-F
Distribution_Liability: See access and use constraints information.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: DXF
Format_Specification: AutoCAD Digital Exchange File
Digital_Transfer_Option:
Offline_Option:
Offline_Media: dvd
Fees:
Loudoun County distributes spatial data in ArcGIS database or shapefile & DXF format for the cost of reproduction. Countywide spatial datasets may be purchased for $22 per DVD for up to 4.5 GB of data. There is a $100 surcharge to purchase countywide topography, and a $3 charge if the item is to be mailed. If the customer wants the data in DXF format and/or would like OMAGI to custom select specific geographic areas of the County, there is an additional $7 per 15 minute increment labor charge. Select aerial imagery is also available.
Ordering_Instructions:
Size limit: 4.5 GB. Visit our website at: <http://www.loudoun.gov/omagi>, click on "Loudoun County Mapping Documents & Order Forms." The "Forms" directory will lead you to custom & standard (countywide) data order forms. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information regarding all data requests.
Metadata_Reference_Information:
Metadata_Date: 20130305
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, VA, OMAGI
Contact_Address:
Address_Type: mailing and physical
Address: MS 65
Address: 1 Harrison Street SE, 2nd Floor
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Contact_Voice_Telephone: (703)771-5778
Contact_Facsimile_Telephone: (703)771-5075
Contact_Electronic_Mail_Address: mapping@loudoun.gov
Hours_of_Service: 8:00-4:30 EST, M-F
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Use_Constraints:
This metadata reflects the source Geodatabase format and specific elements may not apply if your data is exported to SHP, DXF, or .e00 products. User must be aware that changes to data schema occur during data export that may not be reflected in this metadata, which represents Loudoun County's corporate geodatabase. Acknowledgement of Loudoun County would be appreciated in the use of this metadata.
Generated by mp version 2.9.6 on Tue Mar 05 12:57:33 2013