Identification_Information: Citation: Citation_Information: Originator: NH Department of Transportation Publication_Date: 200704 Title: NH Department of Transportation Geodetic Control Database Geospatial_Data_Presentation_Form: digital data Publication_Information: Publication_Place: Concord, New Hampshire Publisher: NH Department of Transportation Online_Linkage: Description: Abstract: Statewide dataset containing the location of geodetic control points and their associated attributes. For attribute data dictionary, see the file Geodetic-CodeGuide.doc. Purpose: Provide a comprehensive listing of accurate geodetic control markers throughout the state from Federal, State, Local and Private sources. Supplemental_Information: Data distribution tile: statewide Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18480101 Ending_Date: 20210302 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Biannually Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.588552 East_Bounding_Coordinate: -70.672045 North_Bounding_Coordinate: 45.291923 South_Bounding_Coordinate: 42.693891 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Geodetic Theme_Keyword: Geodetic Control Theme_Keyword: Control Points Theme_Keyword: Survey Theme_Keyword: Location and Geodetic Network Theme_Keyword: Spatial Reference Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: Northeast Place_Keyword: New England Place_Keyword: New Hampshire Access_Constraints: No Use_Constraints: No Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Easler Contact_Organization: NH Department of Transportation, Survey Section Contact_Position: Engineering Technician Contact_Address: Address_Type: mailing and physical address Address: NH Department of Transportation, Survey Section Address: J.O. Morton Building., 7 Hazen Drive Address: P.O. Box 483 City: Concord State_or_Province: NH Postal_Code: 03301-0483 Contact_Voice_Telephone: 603-271-2746 Contact_Facsimile_Telephone: 603-271-7025 Contact_Electronic_Mail_Address: beasler@dot.state.nh.us Data_Set_Credit: New Hampshire Department of Transportation, Survey Section Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attributes are collected by field inspection and verified by logical and visual validation. Logical_Consistency_Report: The data set was generated from geodetic control survey observations made by a variety of groups following standards in place at the time of observation. Completeness_Report: These data represent statewide coverage, although they are continually being updated and enhanced. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Please see the attribute data dictionary file, Geodetic-CodeGuide.doc, or contact the NHDOT Survey Section for accuracy standards. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Please see the attribute data dictionary file, Geodetic-CodeGuide.doc, or contact the NHDOT Survey Section for accuracy standards. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: New Hampshite Department of Transportation, Survey Section Publication_Date: 20210302 Title: New Hampshire Geodetic Control Data Base Edition: 2021 Geospatial_Data_Presentation_Form: tabular digital data Publication_Information: Publication_Place: Concord, NH Publisher: NHDOT, Survey Section Other_Citation_Details: control.mdb Online_Linkage: NA Larger_Work_Citation: Citation_Information: Originator: National Geodetic Survey, NOAA Publication_Date: Unknown Title: National Spatial Reference System Publication_Information: Publication_Place: Silver Spring, MD Publisher: National Geodetic Survey, NOAA Online_Linkage: Type_of_Source_Media: Digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18480101 Ending_Date: 20210302 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NA Source_Contribution: NHDOT Survey Section Process_Step: Process_Description: A digital data base has been maintained at the NHDOT since 1978. Prior to that, geodetic data was stored in print. That printed data has been systematically transferred to the digital data base and that data base is kept current as new geodetic points are established or updated data comes available for existing points. Source_Used_Citation_Abbreviation: NA Process_Date: Unknown Source_Produced_Citation_Abbreviation: Control Data Base Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 7069 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1983 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 2800 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999967 Longitude_of_Central_Meridian: -71.666667 Latitude_of_Projection_Origin: 42.500000 False_Easting: 984250.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.002048 Ordinate_Resolution: 0.002048 Planar_Distance_Units: survey feet 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: Overview_Description: Entity_and_Attribute_Overview: For a description of the attribute information, see the file Geodetic-CodeGuide.doc. Entity_and_Attribute_Detail_Citation: See Geodetic-CodeGuide.doc. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Systems Research Center, University of New Hampshire Contact_Person: GRANIT Database Manager Contact_Position: GRANIT Database Manager Contact_Address: Address_Type: mailing and physical address Address: Morse Hall, University of New Hampshire City: Durham State_or_Province: NH Postal_Code: 03824 Contact_Voice_Telephone: 603-862-1792 Contact_Facsimile_Telephone: 603-862-0188 Contact_Electronic_Mail_Address: granit@unh.edu Hours_of_Service: 8:30AM - 5 PM, EST Resource_Description: Downloadable Data Distribution_Liability: These digital data represent the efforts of the NH Department of Transportation to deliver an accurate statewide geodetic control network. No claim is made as to the validity or reliability or to any implied uses of these data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Shapefile Transfer_Size: 10.47 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: ESRI Shapefile Fees: No charge when downloaded from website. Cost of reproduction for provision on CD/ROM or other media. Metadata_Reference_Information: Metadata_Date: 200706 Metadata_Review_Date: 20210302 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Brian Easler Contact_Organization: NH Department of Transportation, Survey Section Contact_Position: Engineering Technician Contact_Address: Address_Type: mailing and physical address Address: NH Department of Transportation, Survey Section Address: J.O. Morton Building., 7 Hazen Drive Address: P.O. Box 483 City: Concord State_or_Province: NH Postal_Code: 03301-0483 Contact_Voice_Telephone: 603-271-2746 Contact_Facsimile_Telephone: 603-271-7025 Contact_Electronic_Mail_Address: beasler@dot.state.nh.us Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile