LRRB Property Database

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: The Nature Conservancy / WorldView Solutions

Publication_Date: Unpublished Material

Title: LRRB Property Database

Geospatial_Data_Presentation_Form: vector digital data

Other_Citation_Details: Data will be published at a later date.

Online_Linkage: None

Description:

Abstract:

GIS data layer containing land ownership parcels and attributes for the Roanoke/Cashie watershed, based on data available from local sources. The layer is dilineated by a 300-meter buffer around the 132,000 CFS floodplain. This area is contained within five counties: Halifax, Northampton, Bertie, Martin, and Washington. Any land ownership within or touching this defined boundary is included in the layer. In addition, contiguous parcels outside of the project boundary but touching property held by the same owner are included in the layer. Tabular information for all of the ownership data has been joined to the layer, using existing digital and hard copy records maintained by each county.

Purpose:

The Nature Conservancy intends to use this data layer to assess property ownership trends throughout the Roanoke/Cashie watershed.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: April 8, 2002

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -77.735153

East_Bounding_Coordinate: -76.614064

North_Bounding_Coordinate: 36.521651

South_Bounding_Coordinate: 35.687778

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Parcels

Theme_Keyword: Property

Theme_Keyword: Ownership

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: North Carolina

Place_Keyword: Roanoke

Place_Keyword: Cashie

Place_Keyword: Bertie

Place_Keyword: Northampton

Place_Keyword: Martin

Place_Keyword: Halifax

Place_Keyword: Washington

Access_Constraints:

The use of this data is limited to Nature Conservancy staff and approved Nature Conservancy partners.

Use_Constraints: None.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jamie Christensen

Contact_Organization: WorldView Solutions

Contact_Address:

Address_Type: mailing and physical address

Address: 2046 River Pearl Way

City: Chesapeake

State_or_Province: VA

Postal_Code: 23321

Country: United States

Contact_Voice_Telephone: 757.572.4511

Contact_Facsimile_Telephone: 509.694.5193

Contact_Electronic_Mail_Address: jamie@worldviewgis.com

Hours_of_Service: 9:00am - 5:00pm

Contact_Instructions:

Until final delivery, WorldView Solutions is the primary contact for information related to the status of this data layer.

Security_Information:

Security_Classification_System: None

Security_Classification: Confidential

Security_Handling_Description:

All information contained with this layer has been developed for use solely by the Nature Conservancy and its partners. No other organization or individual may use this data without express written permission from the Nature Conservancy.

Native_Data_Set_Environment: Microsoft Windows XP

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Known ommissions exist with regards to the attached real estate assessment data. As this data layer moves from draft to final delivery, these ommissions will be resolved. In particular, assessment data available from Martin and Northampton Counties is missing key attributes and did not provide a complete link between the assessment database and the parcel identification numbers indicated on the hard copy tax maps.

Logical_Consistency_Report:

ArcInfo maintained and updated the topological integrity of the property data layer. All layers were built and cleaned using tolerances < 1 foot. Data was digitized using ArcInfo line coverages and built into polygons using ArcInfo. Special attention was placed on edgematching issues between parcels on adjoining Counties and no topological errors should exist on any parcel touching another parcel in an adjoining county.

Completeness_Report:

The data layer has no known ommissions with regards to the integrity, shape and location of parcel boundaries. All property boundary location are subject to the constraints of the georeferencing process, which maintained an RMS error of < 10 feet for any tax map sheet.

Lineage:

Source_Information:

Source_Scale_Denominator: 1":200'

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1994

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Bertie County hard copy tax maps

Source_Contribution:

County maps depicted parcel boundaries, rights of way, and parcel identification numbers for each property boundary within the County. Paper data was developed using orthophotos flown in 1994 by the County.

Source_Information:

Source_Scale_Denominator: 1":200'

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1991

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Martin County hard copy tax maps

Source_Contribution:

County maps depicted parcel boundaries, rights of way, and parcel identification numbers for each property boundary within the County. Paper data was developed using orthophotos flown in 1991 by the County.

Source_Information:

Source_Scale_Denominator: 1":200'

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Northampton County hard copy tax maps

Source_Contribution:

County maps depicted parcel boundaries, rights of way, and parcel identification numbers for each property boundary within the County. Paper data was developed using orthophotos flown in 1990 by the County.

Source_Information:

Source_Scale_Denominator: 1":200'

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1999

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Washington County GIS Data Layer

Source_Contribution:

GIS data layer describes parcel boundaries, rights of way, and basic assessment data for the entire County was provided and was available as of 1999.

Source_Information:

Source_Scale_Denominator: 1":200'

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Halifax County GIS Data Layer

Source_Contribution:

GIS data layer describes parcel boundaries, rights of way, and extensive assessment data for the entire County was provided and was available as of October, 2001.

Source_Information:

Source_Scale_Denominator: Not Applicable

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Bertie County real estate assessment database.

Source_Contribution:

Assessment data was made available for every parcel within Bertie County. This included owner name, address, acreage, assessment value and a variety of land use codes.

Source_Information:

Source_Scale_Denominator: Not applicable

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Martin County real estate assessment database.

Source_Contribution:

Assessment data was made available for every parcel within Martin County. This included owner name, address, acreage, assessment value and a variety of land use codes.

Source_Information:

Source_Scale_Denominator: Not applicable

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Northampton County real estate assessment database.

Source_Contribution:

Assessment data was made available for parcels within the County's project area, on an on-site basis only. This included owner name, acreage and assessment value.

Process_Step:

Process_Description:

Conservancy staff worked closely with the WorldView Solutions to acquire hard copy or digital tax maps maintained by each county. Hard copy data was acquired for Bertie, Martin and Northampton Counties. Digital data was available for Halifax and Washington counties.

Source_Used_Citation_Abbreviation: Bertie County hard copy tax maps

Source_Used_Citation_Abbreviation: Northampton County hard copy tax maps

Source_Used_Citation_Abbreviation: Martin County hard copy tax maps

Source_Used_Citation_Abbreviation: Halifax County GIS data layer

Source_Used_Citation_Abbreviation: Washington County GIS data layer

Process_Date: September 2001

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jamie Christensen

Contact_Organization: WorldView Solutions

Contact_Address:

Address_Type: mailing and physical address

Address: 2046 River Pearl Way

City: Chesapeake

State_or_Province: VA

Postal_Code: 23321

Contact_Voice_Telephone: 757.572.4511

Contact_Facsimile_Telephone: 509.695.5193

Contact_Electronic_Mail_Address: jamie@worldviewgis.com

Process_Step:

Process_Description:

Digital GIS data was available for Halifax and Washington Counties. Each hard copy tax map was converted into a digital format using a large format scanner. The resolution of each scan was equal to or greater than 300 dots per inch. Each digital file was named based on the county and tax map number it represents and was saved in a .TIF format. All header, footer, and margin information contained on each of the map sheets was clipped from the digital files. This alled WorldView to create a seamless mosaic of tax map information for each county. Based on the format adopted by each county, a master index grid was created, marking the geographic extents of the hard copy map sheets. The master index grid was created with the coordinate system used by each county, which was Stateplane NAD83 feet. The master grid was then reprojected into the same coordinate system as the digital orthophotos, StatePlane NAD83 meters. Using the ArcView Spatial Analyst extension, each map sheet was georeferenced to the master index grid. This was accomplished by placing control points onto the scanned imagery and warping the imagery into the same coordinate space as the master index grid.

Source_Used_Citation_Abbreviation: All hard copy tax maps

Process_Date: September 2001

Process_Step:

Process_Description:

Using the georeferenced tax maps and digital orthophotography, WorldView Solutions digitized the ownership boundaries for the project area. The scanned tax maps were used to define the political ownership boundaries and the digital orthophotos were used to define the physical ownership boundaries. Ultimately, the digital orthophotos served as a base map for the ownership boundaries. The Contractor digitized all of the boundaries using ESRI's ArcInfo software.

Source_Used_Citation_Abbreviation: Digitized parcel boundaries

Process_Date: September 2001

Process_Step:

Process_Description:

Conservancy staff worked closely with WorldView Solutions to obtain digital tabular ownership data maintained by each county. WorldView converted the tabular data, where necessary, into a digital format. The tabular data included, at a minimum, the parcel identification number, acreage, property address, owner name, owner address, land value, and improvement value. Any other tabular data will be assessed by the Conservancy and converted by the Contractor as necessary. The Contractor joined together the tabular data and ownership layer, using the Parcel Identification Number as the common identifier. Discrepancies between the data sources will be identified and, where possible, resolved.

Source_Used_Citation_Abbreviation: Bertie County real estate assessment database

Source_Used_Citation_Abbreviation: Northampton County real estate assessment database

Source_Used_Citation_Abbreviation: Martin County real estate assessment database

Source_Used_Citation_Abbreviation: Halifax County real estate assessment database

Source_Used_Citation_Abbreviation: Washington County real estate assessment database

Process_Date: September 2001

Cloud_Cover: Not applicable

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 12709

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 18

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -75.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256

Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Geodetic_Model:

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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: lrrb_parcel_utm_nad83_meters

Entity_Type_Definition: Lower Roanoke River Basin Property Database

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: COUNTY

Attribute_Definition: County Name

Attribute_Definition_Source: County Tax Maps

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Northampon

Enumerated_Domain_Value_Definition: Northampton County

Enumerated_Domain_Value_Definition_Source: Parcels within Northampton County

Enumerated_Domain:

Enumerated_Domain_Value: Bertie

Enumerated_Domain_Value_Definition: Bertie County

Enumerated_Domain_Value_Definition_Source: Parcels within Bertie County

Enumerated_Domain:

Enumerated_Domain_Value: Martin

Enumerated_Domain_Value_Definition: Martin County

Enumerated_Domain_Value_Definition_Source: Parcels within Martin County

Enumerated_Domain:

Enumerated_Domain_Value: Washington

Enumerated_Domain_Value_Definition: Washington County

Enumerated_Domain_Value_Definition_Source: Parcels within Washington County

Enumerated_Domain:

Enumerated_Domain_Value: Halifax

Enumerated_Domain_Value_Definition: Halifax County

Enumerated_Domain_Value_Definition_Source: Parcels within Halifax County

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Complete

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: As needed

Attribute:

Attribute_Label: ACRES

Attribute_Definition: Assessment acreage

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.01

Range_Domain_Maximum: 100000

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: OWNER

Attribute_Definition: Owner Name

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: BILL_ADDR

Attribute_Definition: Billing address

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: BILL_ADDR2

Attribute_Definition: Billing address continued

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: TOT_VALUE

Attribute_Definition: Total value of parcel

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 10000000

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: SITE_ADDR

Attribute_Definition: Parcel site address

Attribute_Definition_Source: County real estate assessment databases.

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to assessment database.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Attribute:

Attribute_Label: PIN

Attribute_Definition: Parcel Identification Number

Attribute_Definition_Source: County hard copy tax maps.

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: XXXX-XX-XXXX

Enumerated_Domain_Value_Definition: Pin Number enumeration

Enumerated_Domain_Value_Definition_Source:

Each digit represents an X or Y location on the data layer. The first digit is the second value in the Northing coordinate. The second digit is the first value in the Easting coordinate. The third value is the third digit in the Northing coordinate. The fourth value is the second value in the Easting coordinate... This creates a unique, geographically based identification number for each parcel.

Attribute_Value_Accuracy_Information:

Attribute_Value_Accuracy: Accurate to the currentness of tax maps.

Attribute_Value_Accuracy_Explanation: Not applicable

Attribute_Measurement_Frequency: Irregular

Overview_Description:

Entity_and_Attribute_Overview:

Some values are missing based on gaps in the County assessment database. Where a value is indicated as "Unknown", then the value is marked as such in the County assessment database. Where a value is indicated as "NA", then no record in the assessment database could be found to match the property boundary within the GIS database.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jamie Christensen

Contact_Organization: WorldView Solutions

Contact_Address:

Address_Type: mailing and physical address

Address: 2046 River Pearl Way

City: Chesapeake

State_or_Province: VA

Postal_Code: 23321

Contact_Voice_Telephone: 757.572.4511

Contact_Facsimile_Telephone: 509.694.5193

Contact_Electronic_Mail_Address: jamie@worldviewgis.com

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 20.440

Fees: None

Ordering_Instructions:

Data is not currently available for ordering. Use the distributor contact information to determine the status and distribution constraints related to the LRRB property database.

Turnaround: Not Applicable

Metadata_Reference_Information:

Metadata_Date: 20020408

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: WorldView Solutions

Contact_Person: Jamie Christensen

Contact_Address:

Address_Type: mailing and physical address

Address: 2046 River Pearl Way

City: Chesapeake

State_or_Province: VA

Postal_Code: 23321

Contact_Voice_Telephone: 757.572.4511

Contact_Facsimile_Telephone: 509.694.5193

Contact_Electronic_Mail_Address: jamie@worldviewgis.com

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None.

Metadata_Use_Constraints: None.

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile