Durham_ImperviousArea
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: City of Durham Public Works
- Publication_Date: September 2007
- Title: Durham_ImperviousArea
- Edition: release 200709
- Geospatial_Data_Presentation_Form: vector digital data
- Online_Linkage: \\REF017\C$\durham\Durham_ImperviousArea.shp
- Description:
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- Abstract:
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Release 200709
This feature class represents impervious areas in the City of Durham. Impervious areas are surfaces that impede the normal infiltration of precipitation into the ground. Examples of impervious surfaces include rooftops, driveways, and parking areas. It is recommended that users set transparency to 60% when using orthoimagery or satellite imagery as a base layer.
- Purpose:
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To facilitate the administration of the Stormwater Utility Fee, which is calculated from the amount of impervious surface on a parcel.
- Supplemental_Information:
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As of January 2006, through the creation of the Public Works Stormwater Services Billing Unit, an effort is underway to make changes according to recent development and improve the general quality of impervious area data.
- 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: 1994
- Ending_Time: 2007
- Currentness_Reference: ground condition
- Status:
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- Progress: In work
- Maintenance_and_Update_Frequency: Daily
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -79.006976
- East_Bounding_Coordinate: -78.773492
- North_Bounding_Coordinate: 36.135975
- South_Bounding_Coordinate: 35.866357
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: [THESAURUS]
- Theme_Keyword: Impervious Area
- Access_Constraints: [ACCESS CONSTRAINTS]
- Use_Constraints:
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Private Use Policy:
No use for resale or commercial purposes, as defined in North Carolina General Statute Chapter 132-10,
is permitted.
Commercial Use Policy:
The purpose of this Policy is to address GIS data distribution requests by an individual or organization
that intends to use Durham's GIS data for commercial purposes. This Policy includes product
availability,distribution methods, and product costs. The requester is required to use a GIS Data
Distribution Application for Commercial Use. None of the GIS data purchased through this Policy
shall be published by the requestor without the City's explicit written consent, nor shall the
requestor permit any other party to publish the data. For example, to make this data available
over the Internet is prohibited as a form of publication. This Policy shall apply to all GIS Data
used for commercial purposes.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Edward Cherry
- Contact_Organization: Stormwater Services Billing Unit, City of Durham, NC
- Contact_Position: GIS Coordinator
- Contact_Voice_Telephone: 919-560-4326 x261
- Contact_Facsimile_Telephone: 919-560-4316
- Contact_Electronic_Mail_Address: Edward.Cherry@durhamnc.gov
- Hours_of_Service: M-F 8AM - 5PM
- Data_Set_Credit: [CREDITS]
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report: [ATTRIBUTE ACCURACY REPORT]
- Logical_Consistency_Report: [LOGICAL CONSISTENCY REPORT]
- Completeness_Report:
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The original Impervious Area data was collected by Ogden Environmental in 1994, and non-residential parcels were updated in 1999. City staff have maintained data since. Impervious Area data was not current for many parcels in January 2006 when the Stormwater Services Billing Unit was created. New development is being added and other parcels are being edited where data is not up to date.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Horizontal accuracy is dependent on the source data from which impervious area polygons are digitized. The most accurate and reliable source data used in the creation of impervious area data is orthophotography from 2005, which meets National Map Accuracy Standard (90% of well identified structures within 2.5 ft) and American Society of Photogrammetry and Remote Sensing standard limiting RMSe for 1" = 100' mapping in X and Y equal to or less than 1 foot. Other source data include georeferenced permit drawings, GPS data and satellite imagery.
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report: [VERTICAL ACCURACY REPORT]
- Lineage:
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- Source_Information:
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- Source_Scale_Denominator: [SOURCE SCALE]
- Type_of_Source_Media: [MEDIA]
- Source_Citation_Abbreviation: [CITATION]
- Source_Contribution: [SOURCE CONTRIBUTION]
- Process_Step:
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- Process_Description: [PROCESS STEP]
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\CarlS\LOCALS~1\Temp\xml9D.tmp
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\CarlS\LOCALS~1\Temp\xmlAB.tmp
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\CarlS\LOCALS~1\Temp\xml8C.tmp
- Process_Step:
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- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation:
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Server=tax_sql; Service=5153; User=publicworks; Version=sde.DEFAULT
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 174152
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 32309
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 6
- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 6
- 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: 34.333333
- Standard_Parallel: 36.166667
- Longitude_of_Central_Meridian: -79.000000
- Latitude_of_Projection_Origin: 33.750000
- False_Easting: 2000000.002617
- False_Northing: 0.000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.000000
- Ordinate_Resolution: 0.000000
- Planar_Distance_Units: survey feet
- Geodetic_Model:
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- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
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- Altitude_System_Definition:
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- Altitude_Resolution: 1.000000
- Altitude_Encoding_Method:
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Explicit elevation coordinate included with horizontal coordinates
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: Durham_ImperviousArea
- Attribute:
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- Attribute_Label: SHAPE
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: SOURCE
- Attribute:
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- Attribute_Label: PARCEL_ID
- Attribute:
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- Attribute_Label: CREATEDATE
- Attribute:
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- Attribute_Label: MODIFYDATE
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: FID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: CO_DATE
- Attribute:
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- Attribute_Label: EDITEDBY
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: CITY_INDEX
- Attribute:
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- Attribute_Label: VERIFIED
- Attribute:
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- Attribute_Label: VERIFICATI
- Attribute:
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- Attribute_Label: IMPERVIOUS
- Attribute:
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- Attribute_Label: area
- Attribute:
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- Attribute_Label: len
- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: PublicWorks.PUBLICWORKS.ImperviousArea_HISTORY
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: PublicWorks.PUBLICWORKS.CityIndex
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- Attribute:
- 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: City/County of Durham GIS Department
- Contact_Voice_Telephone: 919-560-4082
- Contact_Facsimile_Telephone: 919-560-4808
- Contact_Electronic_Mail_Address: gis@ci.durham.nc.us
- Hours_of_Service: 8AM-5PM (Monday-Friday)
- Resource_Description: [RESOURCE DESCRIPTION]
- Distribution_Liability:
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The requester agrees that the City of Durham and County of Durham shall not be held liable for any
errors in the data provided to the requester as a result of the requester's application. This includes errors
of omission, commission, errors concerning the content of the data, and relative and positional accuracy
of the data. The data cannot be construed to be a legal document. Primary sources from which the data
have been compiled must be consulted for verification of the information contained in this data. Information regarding the location of primary sources can be provided upon request.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: ArcInfo Export File
- Transfer_Size: 71.191
- Fees: $ 25.00
- Ordering_Instructions:
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Via E-mail or FTP:
Customers can receive digital data via e-mail for small area coverage. For a larger area or countywide digital data, customers can receive data by accessing Durham's FTP (File Transfer Protocols) site. To access the FTP site, customers must obtain permission and a logon code will be provided when payment is received.
To order via Internet, customers can download a request form from Durham's Internet Site: www@ci.durham.nc.us and e-mail a request to: gis@ci.durham.nc.us.
CD-ROM and other media:
Digital data are also available on CD-ROM, 8MM tape, and diskette. Customers can purchase digital data on CD-ROM at the GIS Department, the Public Works Department, the Planning Department, and the Tax Assessor's Office.
- Custom_Order_Process: [CUSTOM ORDER PROCESS]
- Technical_Prerequisites: [TECHNICAL PREREQUISITES]
- Metadata_Reference_Information:
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- Metadata_Date: 20090429
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: City of Durham Public Works
- Contact_Person: Edward Cherry
- Contact_Position: GIS Coordinator
- Contact_Address:
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- Address_Type:
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REQUIRED: The mailing and/or physical address for the organization or individual.
- City: REQUIRED: The city of the address.
- State_or_Province: REQUIRED: The state or province of the address.
- Postal_Code: REQUIRED: The ZIP or other postal code of the address.
- Contact_Voice_Telephone: 919-560-4326 x228
- Contact_Facsimile_Telephone: 919-560-4316
- Contact_Electronic_Mail_Address: Edward.Cherry@durhamnc.gov
- Hours_of_Service: M-F 8-5
- Contact_Instructions: prefer email
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Wed Apr 29 15:06:29 2009