Shoreline Inventory for Lancaster County 2015: Access Structures

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Center for Coastal Resources Management, Virginia Institute of Marine Science (VIMS)
Publication_Date: 20151231
Title:
Shoreline Inventory for Lancaster County 2015: Access Structures
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
Shoreline Situation Reports (SSR) were first generated by VIMS in the 1970's to report the condition and status of the shore lands. The SSR series were published in hardcopy on a county by county basis for each Tidewater Virginia localities. The reports were intended to assist planners, managers, and regulators in decisions pertaining to management of coastal areas and natural resources therein. This Shoreline Inventory report continues a process which updates and expands the earlier reports. Data collected reports conditions surveyed in the immediate riparian zone, the bank, and along the shoreline. The last Shoreline Report for Lancaster County was published in 2001.
Purpose: To inventory Virginia's tidal shoreline conditions.
Supplemental_Information:
There are four shapefiles that are part of the 2015 Lancaster County Shoreline Inventory database:Lancaster_lubc_2015, Lancaster_sstru_2015, Lancaster_astru_2015 and Lancaster_tm_2015. Lancaster_lubc_2015 (land use and bank cover for Lancaster County) is a linear shapefile containing data about land use, tree fringe, bank height, bank cover, bank stability and beach status along the shoreline. Lancaster_sstru_2015 (Lancaster Countyshoreline structures) is a linear shapefile delineating hard structures in place at the shoreline (bulkhead, dilapidated bulkhead, riprap, wharf, unconventional, debris, marina < 50 slips, marina > 50 slips, jetty, marsh toe revetment, groinfield and breakwaters). Lancaster_astru_2015 ( Lancaster County access structures) is a point shapefile with locations of docks, dilapidated docks, boathouses, and private and public boat ramps. Lancaster County_tm_2015 (Lancaster County tidal marshes) shows the location, size, species and type of tidal marshes. The attributes of these four shapefiles are explained in the Entity and Attribute Information section below.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20130101
Ending_Date: 20150618
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.634999
East_Bounding_Coordinate: -76.283514
North_Bounding_Coordinate: 37.827329
South_Bounding_Coordinate: 37.605301
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword:
Land use, Shoreline Inventory, Bank cover, Shoreline Stability, Bank Height, Beach, Access Structures, Shoreline Structures
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: boundaries
Theme_Keyword: environment
Theme_Keyword: location
Theme_Keyword: structure
Place:
Place_Keyword_Thesaurus: None
Place_Keyword:
Lancaster Creek, Rappahannock River, Corrotoman River, Fleets Bay, Dymer Creek, Indian Creek, Rappahannock Creek, Windmill Point
Access_Constraints: None
Use_Constraints:
These data should not be used for jurisdictional permit determinations beyond providing general shoreline condition or status information. These data have not been surveyed to property boundaries.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Center for Coastal Resources Management, Virginia Institute of Marine Science (VIMS)
Contact_Person: Marcia Berman
Contact_Position: Director Comprehensive Coastal Inventory Program
Contact_Address:
Address_Type: mailing
Address: P.O.Box 1346
City: Gloucester Point
State_or_Province: Virginia
Postal_Code: 23062
Country: US
Contact_Voice_Telephone: 804-684-7188
Contact_Facsimile_Telephone: 804-684-7179
Contact_Electronic_Mail_Address: marcia@vims.edu
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.0.4322
Data_Quality_Information:
Logical_Consistency_Report:
A Lancaster County point coverage was generated using the 2013 VBMP imagery as a backdrop and using ArcGis version 10.1. This same imagery as well as Google Earth 2015 imagery was used to code shoreline access structure attributes. All data is subject to Processor interpretation and clarity of imagery used.
Completeness_Report:
All access structures visible using the imagery available were coded.
Lineage:
Process_Step:
Process_Description:
A shoreline for Lancaster County was created using the 2013 VBMP imagery as a backdrop and using ArcGis version 10.1. Using this as a baseline the shoreline inventory was remotely generated using two sources: Google Earth 2015 imagery , and 2013 high resolution imagery available through Bing Maps and 2013 high resolution imagery available from the Virginia Base Mapping Program (VBMP). The shoreline was coded for land use, bank height, bank condition, bank cover and the presence or absence of beach, access structures and hardened structures.
Process_Date: 20150105
Process_Step:
Process_Description:
All processing steps for the shoreline inventory were generated using ArcGIS - ArcMap v10.2.2 while viewing conditions observed in 2015 Bing high resolution oblique imagery and 2013 imagery from the Virginia Base Mapping Program (VBMP). Using the latest VBMP 2013 imagery as a background, conditions visible on shore were used to code a digital shoreline created using VBMP 2013 imagery at a scale of 1:1000. Conditions were also verified using Bing Birds Eye, VBMP 2011, and VBMP 2009 imagery. For the land use/bank cover shapefile arcs were split and coded for land use, bank height, bank cover, tree fringe and presence or absence of beach, for the access structure shapefile arcs were coded for dock, dilapidated dock, boathouse, and public and private ramps, for the shoreline structure shapefile arcs were coded for bulkhead, delapidated bulkhead, riprap, unconventional, debris, wharf, breakwater, groinfield, jetty, marsh toe revetment and marina >50 and <50 slips.
Process_Date: 20150302
Process_Step:
Process_Description:
The first and second step in the QAQC process involves complete checks of shoreline coding by a GIS Programmer/Analyst and a Marine Scientist.
Process_Date: 20150401
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 2634
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 UTM Zone 18N
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -75.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000002220024164500956
Ordinate_Resolution: 0.000000002220024164500956
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
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: Lancaster_astru_2015
Entity_Type_Definition: Lancaster County Access Structures
Entity_Type_Definition_Source: Processor
Attribute:
Attribute_Label: FID
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: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: PNTSTRUC
Attribute_Definition:
Access structure type: Dock, Dilapidated Dock, Boathouse, Private Ramp and Public Ramp
Attribute_Definition_Source: Processor
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Dock/Pier
Enumerated_Domain_Value_Definition:
In this survey, a dock or pier is a structure, generally constructed of wood, which is built perpendicular or parallel to the shore. These are typical on private property, particularly residential areas. They provide access to the water, usually for recreational purposes. Docks and piers are mapped as point features on the shore. Pier length is not surveyed.
Enumerated_Domain_Value_Definition_Source:
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
Enumerated_Domain:
Enumerated_Domain_Value: Dilapidated Dock
Enumerated_Domain_Value_Definition:
A pier which has failed due to deterioration from age or storm damage is classified as a dilapidated pier. The remnants of this structure may be original pilings only
Enumerated_Domain_Value_Definition_Source:
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
Enumerated_Domain:
Enumerated_Domain_Value: Private Ramp
Enumerated_Domain_Value_Definition:
Boat ramps are used to launch vessels of all types. They are usually constructed of concrete, but wood and gravel ramps are also found. Point identification of boat ramps does not discriminate based on type, size, material, or quality of the launch. This inventory attempts to distinguish, when possible, private versus public ramps. Ramps located in privately owned, commercial marinas and residential communities are classified as private.
Enumerated_Domain_Value_Definition_Source:
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
Enumerated_Domain:
Enumerated_Domain_Value: Public Ramp
Enumerated_Domain_Value_Definition:
Boat ramps are used to launch vessels of all types. They are usually constructed of concrete, but wood and gravel ramps are also found. Point identification of boat ramps does not discriminate based on type, size, material, or quality of the launch. This inventory attempts to distinguish, when possible, private versus public ramps. Ramps located in privately owned, commercial marinas and residential communities are classified as private.
Enumerated_Domain_Value_Definition_Source:
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
Enumerated_Domain:
Enumerated_Domain_Value: Boathouse
Enumerated_Domain_Value_Definition:
A boathouse is considered any covered structure alongside a dock or pier built to cover a boat. They include true “houses” for boats with roof and siding, as well as awnings that offer only overhead protection. Since nearly all boathouses have adjoining piers, piers are not surveyed separately, but are assumed. Boathouses may be difficult to see in aerial photography.
Enumerated_Domain_Value_Definition_Source:
Glossary of Shoreline Features Defined, Center for Coastal Resources Management, VIMS
Attribute:
Attribute_Label: Inv_Update
Attribute_Definition: Inventory Update
Attribute_Definition_Source: Processor
Attribute_Domain_Values:
Unrepresentable_Domain: Text describing the imagery used to update this inventory.
Metadata_Reference_Information:
Metadata_Date: 20160301
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Center for Coastal Resources Management Program, Virginia Institute of Marine Science (VIMS)
Contact_Person: Sharon Killeen
Contact_Position: GIS Programmer/Analyst
Contact_Address:
Address_Type: mailing
Address: P.O.Box 1346
City: Gloucester Point
State_or_Province: Virginia
Postal_Code: 23062
Country: US
Contact_Voice_Telephone: 804-684-7534
Contact_Facsimile_Telephone: 804-684-7179
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Tue Mar 01 10:01:44 2016