1 Foot Countywide Color Spring 2013 Orthophotography
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Virginia Geographic Information Network (VGIN)
- Publication_Date: 20131031
- Title: 1 Foot Countywide Color Spring 2013 Orthophotography
- Edition: 2013
- Geospatial_Data_Presentation_Form: remote-sensing image
- Series_Information:
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- Series_Name: Virginia Base Map Program
- Issue_Identification: 2013
- Publication_Information:
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- Publication_Place: Richmond, Virginia
- Publisher: Virginia Geographic Information Network (VGIN)
- Online_Linkage: <http://www.vita.virginia.gov/isp/default.aspx?id=12118>
- Larger_Work_Citation:
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- Citation_Information:
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- Originator: Virginia Geographic Information Network (VGIN)
- Publication_Date: unknown
- Title: Virginia Base Map Program
- Description:
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- Abstract:
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In the spring of 2013, the Commonwealth of Virginia, through the Virginia Geographic Information Network Division (herein referred to as VGIN) of the Virginia Information Technologies Agency (VITA) contracted with the Sanborn Map Company to provide aerial data acquisition, ground control, aerial triangulation and development of statewide DTM and digital orthophotography data. The Virginia Base Mapping Program (VBMP) update project is divided into two collection phases: the Eastern half was collected in Spring 2013 and the Western half will be collected in Spring 2015. Ortho products are 1-foot resolution statewide ortho-imagery with upgrades to 6-inch resolution tiles and 3-inch resolution tiles in various regions within the project area. All data acquired in 2013 is jurisdiction based and is in the eastern half of the state. The Virginia Base Mapping project encompasses the entire land area of the Commonwealth of Virginia over 4 years. The State boundary is buffered by 1000'. Coastal areas of the State bordering the Atlantic Ocean or the Chesapeake Bay are buffered by 1000' or the extent of man-made features extending from shore.
- Purpose:
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The collection of aerial photography, update of the DTM surface and production of orthophotography was executed to capture the existing ground conditions at a specific point in time for the purpose of GIS analysis. Orthophotography along with DTM data typically provides an accurate base for digitally representing geographic features upon which a GIS is built. The Virginia Geographic Information Network Division (VGIN) is the lead public agency in the Commonwealth for spatial data and GIS. VGIN's mission is to facilitate the cost-effective development and use of spatial data, GIS, and related technologies in organizations throughout the Commonwealth.
- Supplemental_Information:
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The entire State was initially designed to support 1-foot resolution statewide ortho-imagery at 1"= 200' (1:2400) scale mapping. Jurisdictions throughout the State were provided an option to upgrade to 6-inch resolution tiles and 3-inch resolution at 1"=100' (1:1200) map scale. All digital ortho-imagery and development processes for the VBMP shall conform to the ASPRS Draft Aerial Photography Standards (1995) and Model Virginia Map Accuracy Standards (1992), which generally follow the ASPRS Accuracy Standard for Large-Scale Mapping (1990) for all imagery at the scales indicated except for the changes specified in this document. Accuracy will be tested and reported according to NSSDA Geospatial Positioning Accuracy Standards Part 3: National Standard for Spatial Data Accuracy Class 1.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20130214
- Ending_Date: 20130419
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: Irregular
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -77.983601
- East_Bounding_Coordinate: -77.308375
- North_Bounding_Coordinate: 39.335910
- South_Bounding_Coordinate: 38.836886
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: raster
- Theme_Keyword: imagery
- Theme_Keyword: orthophotography
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
- Theme_Keyword: imageryBaseMapsEarthCover
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: USA
- Place_Keyword: Virginia
- Place_Keyword: Commonwealth of Virginia
- Access_Constraints:
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Contact VGIN for information about regional and statewide VBMP datasets. For information about local datasets, contact the appropriate locality.
- Use_Constraints:
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This VBMP data has been developed using procedures designed to produce data to comply with the Model Virginia Map Accuracy Standards (1992) and is intended for use at 1" = 100' or 1" = 200' scale. Pursuant to Section 54.1-402, paragraph C of the Code of Virginia, which is quoted below, this data may not be used for purposes listed in said paragraph C, since the data was not created, nor is it maintained under the supervision of a licensed land surveyor. C. Persons utilizing photogrammetric methods or similar remote sensing technology shall not be required to be licensed as a land surveyor pursuant to subsection B of § 54.1-404 or 54.1-406 to: (i) determine topography or contours, or to depict physical improvements, provided such maps or other documents shall not be used for the design, modification, or construction of improvements to real property or for flood plain determination, or (ii) graphically show existing property lines and boundaries on maps or other documents provided such depicted property lines and boundaries shall only be used for general information. Any determination of topography or contours, or depiction of physical improvements, utilizing photogrammetric methods or similar remote sensing technology by persons not licensed as a land surveyor pursuant to § 54.1-406 shall not show any property monumentation or property metes and bounds, nor provide any measurement showing the relationship of any physical improvements to any property line or boundary. Any person not licensed pursuant to subsection B of § 54.1-404 or 54.1-406 preparing documentation pursuant to subsection C of § 54.1-402 shall note the following on such documentation: "Any determination of topography or contours, or any depiction of physical improvements, property lines or boundaries is for general information only and shall not be used for the design, modification, or construction of improvements to real property or for flood plain determination. It is requested that the Commonwealth of Virginia be cited for any use of the orthophotography as follows: "Imagery Courtesy of the Commonwealth of Virginia".
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: VGIN
- Contact_Person: Wendy Stout
- Contact_Position: VBMP Project Manager
- Contact_Address:
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- Address_Type: mailing and physical
- Address: 11751 Meadowville Lane
- City: Chester
- State_or_Province: VA
- Postal_Code: 23836
- Contact_Voice_Telephone: 804-416-6209
- Contact_Electronic_Mail_Address: wendy.stout@vita.virginia.gov
- Native_Data_Set_Environment:
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Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143
- Data_Quality_Information:
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- Logical_Consistency_Report:
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All image tiles have been checked for proper spatial reference and conformance to the revised quality acceptance criteria adopted in the Commonwealth of Virginia Digital Orthoimagery and Digital Terrain Model Production Services Contract (Contract# VA-081223-SANB)
- Completeness_Report:
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This dataset includes a total of approximately 5,067 total images in the Virginia North State Plane Zone for 1' = 200' scale imagery. Complete coverage is provided for all project areas unless an area is covered by imagery at the 1' = 100" scale. Approximately 600 tiles were caputured due to leaf-on conditions, and will be produced in the 2014 flying season.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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These data were complied to meet the Commonwealth of Virginia Standard for Class 1 Map Accuracy as of November 1, 2013. For the 1"=200' scale: RMSEx <= 2.0 feet, RMSEy <= 2.0 feet, RMSEr <= 2.83 feet, Accuracy r <= 4.90 ft at the 95% confidence level. For the 1"=100' scale: RMSEx <= 1.0 feet, RMSEy <= 1.0 feet, RMSEr <= 1.42 feet, Accuracy r <= 2.45 ft at the 95% confidence level.
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Grid Cell
- Row_Count: 5000
- Column_Count: 5000
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Map_Projection:
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- Map_Projection_Name: Lambert Conformal Conic
- Lambert_Conformal_Conic:
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- 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:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.00000002708842039567117
- Ordinate_Resolution: 0.00000002708842039567117
- Planar_Distance_Units:
- Geodetic_Model:
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- 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:
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- Overview_Description:
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- Entity_and_Attribute_Overview:
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Reflectance values for visible and near infra-red light caputured by the Z/I Imaging Digital Mapping Camera (DMC) and expressed as four-band orthorectified imagery.
- Entity_and_Attribute_Detail_Citation:
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Detailed specifications and acceptance criteria can be found in the Commonwealth of Virginia Digital Orthoimagery and Digital Terrain Model Production Serviices Contract (Contract# VVA-121207-SANB)
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Virginia Geographic Information Network
- Contact_Person: VGIN Coordinator
- Contact_Position: VGIN Coordinator
- Contact_Address:
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- Address_Type: mailing and physical
- Address: 11751 Meadowville Lane
- City: Chester
- State_or_Province: VA
- Postal_Code: 23836
- Contact_Voice_Telephone: 804-416-6198
- Contact_Electronic_Mail_Address: vbmp@vgin.virginia.gov
- Distribution_Liability:
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ALL DATA IS PROVIDED "AS IS." The Commonwealth of Virginia, the Virginia Geographic Information Network and their respective, officers, agents and employees jointly and severally disclaim any and all representations or warranties, express or implied, written or oral, in fact or arising by operation of law, including any warranties of merchantability, fitness for a particular purpose, ACCURACY, CURRENCY, commercial value, or freedom of data from infringement of any THIRD PARTY intellectual property rights. Pursuant to Section 54.1-402, paragraph C of the Code of Virginia, which is quoted below, this data may not be used for purposes listed in said paragraph C, since the data was not created, nor is it maintained under the supervision of a licensed land surveyor. C. Persons utilizing photogrammetric methods or similar remote sensing technology shall not be required to be licensed as a land surveyor pursuant to subsection B of § 54.1-404 or 54.1-406 to: (i) determine topography or contours, or to depict physical improvements, provided such maps or other documents shall not be used for the design, modification, or construction of improvements to real property or for flood plain determination, or (ii) graphically show existing property lines and boundaries on maps or other documents provided such depicted property lines and boundaries shall only be used for general information. Any determination of topography or contours, or depiction of physical improvements, utilizing photogrammetric methods or similar remote sensing technology by persons not licensed as a land surveyor pursuant to § 54.1-406 shall not show any property monumentation or property metes and bounds, nor provide any measurement showing the relationship of any physical improvements to any property line or boundary. Any person not licensed pursuant to subsection B of § 54.1-404 or 54.1-406 preparing documentation pursuant to subsection C of § 54.1-402 shall note the following on such documentation: "Any determination of topography or contours, or any depiction of physical improvements, property lines or boundaries is for general information only and shall not be used for the design, modification, or construction of improvements to real property or for flood plain determination.”
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: TIFF
- File_Decompression_Technique: no compression applied
- Transfer_Size: 95.37
- Fees: variable
- Metadata_Reference_Information:
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- Metadata_Date: 20140211
- Metadata_Contact:
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- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Virginia Geographic Information Network
- Contact_Person: Wendy Stout
- Contact_Position: VBMP Project Manager
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 11751 Meadowville Lane
- City: Chester
- State_or_Province: VA
- Postal_Code: 23836
- Contact_Voice_Telephone: 804-416-6209
- Contact_Electronic_Mail_Address: wendy.stout@vita.virginia.gov
- 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 2.9.6 on Thu Feb 27 11:49:28 2014