Metadata RFGRD_V1.0 There are two types of data sets included on the CD-ROM. One is base data of Canadian political boundaries available from GeoGratis http://www.geogratis.cgdi.gc.ca included as a sample modified for use with the reference grids. The other type of data set is the reference grids (RFGRD) generated by the Geological Survey of Canada GISGRID program. The metadata only describes the RFGRD data. For metadata on the base data go to the GeoGratis web site. The metadata is structured according to the US Federal Geographic Data Committee (http://www.fgdc.gov/) Content Standard for Digital Geospatial Metadata (http://www.fgdc.gov/metadata/contstan.html) describing the general source, content, and quality characteristics for the RFGRD data sets on this CD-ROM. Detailed metadata including attribute information can be found in the documentation accessed by opening the index.htm file in the root area of this CD-ROM. A version of this metadata text file is also included in the HTML documentation that includes links and improved layout. 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: Geological Survey of Canada - Calgary Publication_Date: 2001 01 Title: RFGRD_V1.0 - COMPUTED REERENCE GRIDS FOR BRITISH COLUMBIA, ALBERTA, SASKATCHEWAN, MANITIOBA, NUNAVUT, YUKON, NORTHWEST TERRITORIES AND CANADA'S OFFSHORE Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Calgary, Alberta, Canada Publisher: Natural Resources Canada Other_Citation_Details: Openfile #### Online_Linkage: Geological Survey of Canada - Calgary: http://www.nrcan-rncan.gc.ca/gsc/calgary/ Online_Linkage: Geological Survey of Canada: http://www.nrcan-rncan.gc.ca/gsc/ Online_Linkage: Natural Resources Canada: http://www.nrcan-rncan.gc.ca/ Description: Abstract: Geographic reference grids are used to organize many types of spatially referenced information, including information about oil and gas exploration, development activities and lease holdings. As grid systems differ among jurisdictions, digital reference grids have been computed for British Columbia (BC Land grid); Manitoba, Saskatchewan, Alberta and the Peace River area of British Columbia (Dominion Land Survey grid); and Yukon, Nunavut and the Northwest Territories as well as Canada's offshore regions in the Atlantic, Arctic and Pacific Oceans (Canada Land grid). In addition a National Topographic System (NTS grid) has been computed for all of Canada that extends well into the offshore (40 to 84 degrees North, and 48 to 144 degrees West). Theoretically derived grids are presented as a single collection on CD-ROM in geographic coordinates (i.e. not projected) in two commonly used data formats: -Drawing Exchange File (dxf) -ESRI ArcView SHAPE file format (shp). Purpose: The RFGRD_V1.0 data sets are general-purpose reference grids designed to provide polygon data in support of Geographic Information Systems applications. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 200101 Ending_Date: 999999 Currentness_Reference: Publication date Status Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -144.0 East_Bounding_Coordinate: -40.0 North_Bounding_Coordinate: 84.0 South_Bounding_Coordinate: 40.0 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Reference grids Theme_Keyword: RFGRD_V1.0 Theme_Keyword: BC Lands Theme_Keyword: Canada Lands Theme_Keyword: Dominion Land Survey Theme_Keyword: National Topographic System Theme_Keyword: DLS Theme_Keyword: NTS Theme_Keyword: Township Theme_Keyword: Range Theme_Keyword: Meridian Theme_Keyword: Sections Theme_Keyword: provincial boundaries Theme_Keyword: international boundaries Theme_Keyword: GeoGratis Theme_Keyword: GIS database Theme_Keyword: Vector data Theme_Keyword: Point data Theme_Keyword: SHAPE files Theme_Keyword: DXF files Theme_Keyword: CD-ROM Place: Place_Keyword_Thesaurus: None Place_Keyword: Canada Place_Keyword: British Columbia Place_Keyword: Alberta Place_Keyword: Saskatchewan Place_Keyword: Manitoba Place_Keyword: Yukon Place_Keyword: Northwest Territories Place_Keyword: Nunavut Place_Keyword: Canada Offshore Place_Keyword: Atlantic Provinces Place_Keyword: Offshore coverage Access_Constraints: None Use_Constraints: See the licence.txt file in the root area of the CD-ROM product See the GeoGratis User Agreement under documentation or at http://www.geogratis.cgdi.gc.ca Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul Wozniak Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Country: Canada Contact_Voice_Telephone: Not Available Contact_Electronic_Mail_Address: pwozniak@nrcan.gc.ca Data_Set_Credit: Dave Lepard, Paul Wozniak, and Peter Davenport Native_Data_Set_Environment: GISGRID program data output as DXF format processed in coverage format using Arc/Info V.7.2.1 ------------------------- Data_Quality_Information Attribute_Accuracy: All primary attribute codes were checked against the source codes generated by the GISGRID program with no errors detected. Attribute_Accuracy_Report: Attribute codes are derived from the DXF-LAYER code of the source data by parsing that code string to populate the fields in a new table using an automated routine. The new table is joined with the Polygon Attribute Table (PAT) containing the DXF-LAYER code. A mismatch between the DXF-LAYER code and the primary field code of the new table would indicate an error. An equivalence comparison of the primary field code against the DXF-LAYER code was carried out for each polygon label with an error code generated if there was a mismatch. Each cover was then checked using the Arc/Info FREQUENCY command to check for error codes. No error codes were recorded for any of the covers. This is based on the assumption that the GISGRID program generates accurate attribute information. Logical_Consistency_Report: The data was checked for topological consistency with the Arc/Info BUILD command as a part of the automated processing. All dangles and gaps in the line work were removed. The Arc/Info command LABELERRORS was used to ensure that every polygon contained an attribute label and that no polygons contained multiple labels. The Arc/Info FREQUENCY command was used to check for unique codes using the primary field. For each cover the number of unique codes matched the number of polygons, i.e. each polygon contains a unique code. Completeness_Report: The number of points generated by the source application were compared to the number of polygon labels that exist in the processed data using the Arc/Info DESCRIBE command and found to match for all data sets. The number of polygons also matched the number of polygon labels. The data sets are complete based on the assumption that the GISGRID program generated complete grids for the designated areas. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The Horizontal Positional Accuracy is based on the calculations used by the GISGRID program (see Lineage below) to generate the vector/point data. Analysis to determine a value was not carried out. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Geological Survey of Canada - Calgary Publication_Date: 2000 11 Title: GISGRID Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Calgary Publisher: Natural Resources Canada Other_Citation_Details: Openfile 3105 Type_of_Source_Media: computer program Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Times: Calendar_Date: 200011 Source_Currentness_Reference: Publication dates Source_Citation_Abbreviation: GISGRID Source_Contribution: computer program generates source data, spatial and attribute, for the product data sets Process_Step: Process_Description: User input is processed by the GISGRID program to create area points bounded by intersecting strings that are written to an ASCII DXF format file using Lambert Conformal Conic Projection coordinates. The attribute data for each area is written to the DXF attribute DXF-LAYER as determined by the values of the strings bounding the area. If a finer level of detail is generated two DXF files are written; one containing only intersecting strings at a course level and a second containing only the finer level strings and all of the area points. Bounding strings for the areas are not duplicated between the course and fine files. The two files are combined when they are processed in Arc/Info. The DXF files are imported to Arc/Info coverages using the DXFARC command and checked for gaps and dangles that can not be processed by automated routines. After initial editing the coverages are processed using automated routines written in Arc Macro Language (AML) with embedded Perl programs. These clean the data (create intersections and remove gaps and dangles), generate polygon topology, and parse the DXF-LAYER attribute codes to populate polygon attribute tables. The processed covers are projected from Lambert coordinates to Geographic (latitude and longitude) Decimal Degree coordinates. DXF files and SHAPE files are then created from the processed data. The SHAPE DBF files carry the attribute data from the polygon attribute table and the DXF-LAYER attribute is used once again to store attribute data for the DXF files. Process_Date: 200011 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Country: Canada Contact_Voice_Telephone: (403)292-7000 Contact_Facsimile_Telephone: (403)292-5377 Source_Information: Source_Citation: Citation_Information: Originator: University of Tennessee Publication_Date: 1995 Title: Lambert and Mercator Map Projections in Geology and Geophysics Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Exeter, England Publisher: Elsevier Science Ltd. Other_Citation_Details: Computers and Geosciences, An International Journal, Volume 21, Number 3, April 1995, p. 353-364 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Times: Calendar_Date: 1994 Source_Currentness_Reference: Publication dates Source_Citation_Abbreviation: Computers_&_Geosciences Source_Contribution: source code, equations and table values used for development of the GISGRID program and update of the TWP program Process_Step: Process_Description: Develop a computer program to generate reference grids in different projections and file formats for GIS applications. Process_Date: 200011 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dave Lepard Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Country: Canada Contact_Voice_Telephone: (403)292-7028 Contact_Electronic_Mail_Address: dlepard@nrcan.gc.ca Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1985 Title: Computer Programs for Common Map Projections Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Alexandria, VA, USA Publisher: US Geological Survey Other_Citation_Details: US Geological Survey Bulletin 1642 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Times: Calendar_Date: 1985 Source_Currentness_Reference: Publication dates Source_Citation_Abbreviation: USGS_Bulletin_1642 Source_Contribution: source code and equations used for development of the TWPGRID program Process_Step: Process_Description: Develop a computer program to generate reference grids in different projections for output as plot files Process_Date: 200011 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dave Lepard Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Country: Canada Contact_Voice_Telephone: (403)292-7028 Contact_Electronic_Mail_Address: dlepard@nrcan.gc.ca -------------------------------------- Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Township/Range/Section land survey designations. National Topographic System (NTS) map number designations. British Columbia Well Site Plan descriptions. Direct_Spatial_Reference_Method: Point and Vector ------------------------------ Spatial_Reference_Information: Geographic: Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: NAD27 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio:294.9786982 --------------------------------- Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The RFGRD_V1.0 data sets contain attribute coding for area features alone. The area features represent three land survey systems, British Columbia Well Site Plan descriptions, Canada Lands Survey, and the Dominion Land Survey generated by the GISGRID program as described in the GISGRID documentation. The attribute designations have changed in the data set but corresponding values are provided in detailed Attribute Descriptions for each data set included in documentation for the CD-ROM product. Entity_and_Attribute_Detail_Citation: The documentation that accompanies the GISGRID program is included under the DOCS directory of the CD product gisgrid.txt provides attribute descriptions. The content of gisgrid.txt is also included in the HTML documentation for the CD-ROM product. ------------------------- Distribution_Information: Distributor: Contact_Information Contact_Organization_Primary: Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Contact_Voice_Telephone: (403)292-7030 Contact_Facsimile_Telephone: (403)299-3542 Contact_Electronic_Mail_Address: gsc_calgary@gsc.nrcan.gc.ca Hours_of_Service: 0800-1200, 1300-1600 Contact_Instructions: Check the outlet web site at http://www.nrcan-rncan.gc.ca/gsc/calgary/publicat1_e.htm. In addition to the contact information above there are other GSC offices throughout the country listed at http://www.nrcan-rncan.gc.ca/gsc/bookstore_e.html. Distribution_Liability: The digital data and software (if any) supplied in this product is under crown copyright. It is supplied on the understanding that it is for the sole use of the purchaser, and will not be redistributed in any form, in whole or in part, to third parties. The crown assumes no liability for the data. Any use and interpretation is solely the responsibility of the purchaser. Any references to proprietary software in the documentation, and/or any use of proprietary data formats in this release does not constitute endorsement by the GSC of any manufacturer's product. [ While an attempt will be made to answer questions concerning the data, there is no guaranteed level of support expressed or implied.] In accepting this software/data, the purchaser undertakes to abide by the foregoing legal requirements implicit in the purchase. Standard_Order_Process: Digital_Form: CD-ROM Digital_Transfer_Information: Format_Name: SHAPE Format_Information_Content: spatial objects with unique identifier and attribute data for polygons Digital_Transfer_Information: Format_Name: DXF Format_Information_Content: spatial objects with unique identifiers for points File_Decompression_Technique: self-unarchiving zip files created with WinZip 8.0. WinZip is not required but the self-extracting EXE files can only be executed on Microsoft Windows 95/98/NT/2000 OS platforms. Microsoft Windows 3.1 and MSDOS were not tested but may be able to open the files which are compatible with Zip 2.0 file format and can be unzipped with PKUNZIP. Compatibility_Information: once the data sets are uncompressed the data can be moved to other platforms. The data was tested on Microsoft Windows 95/NT/2000 and HPUX UNIX platforms. Technical_Prerequisites: both the SHAPE and DXF formats are open published formats and most drawing, CAD, and/or GIS packages can read one or both formats. The SHAPE format has existing polygon topology with attribute fields useful for querying the data sets. Polygon topology can be built from the DXF format but each polygon will only have its unique identifier attribute. ------------------------------- Metadata_Reference_Information: Metadata_Date: 200012 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul Wozniak Contact_Organization: Geological Survey of Canada - Calgary Contact_Address: Address_Type: mailing address Address: 3303 33rd St. N.W. City: Calgary State_or_Province: AB Postal_Code: T2L-2A7 Country: Canada Contact_Voice_Telephone: Not Available Contact_Electronic_Mail_Address: pwozniak@nrcan.gc.ca Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 --------------------------------- Companies and products mentioned are the trademarks or registered trademarks of the respective companies.