Page 1 of 14 La Salle Upstream of Elie Watershed LiDAR Raster Dataset Tags Earth Science > Land Surface > Topography > Terrain Elevation, Elie, La Salle, Norquay, Cartier, Portage La Praire, Upstream of Elie, La Salle Subwatershed, Canada > Manitoba Summary The LiDAR data was produced for an Agriculture and Agri-Food Canada land and water resource study. The data is required to produce high resolution DEMs to improve hydrologic and environmental resource modelling within the area. Description Digital Elevation Model (DEM) of a subwatershed in the La Salle watershed, north of Elie, MB. Data was derived from LiDAR and is produced at a 1 metre resolution. LiDAR data was collected using Fugro Horizons proprietary FLI-MAP Fx LiDAR system. Credits There are no credits for this item. Use limitations There are no access and use limitations for this item. Extent West -98.220483 East -97.688226 North 50.009684 South 49.879015 Scale Range There is no scale range for this item. ArcGIS Metadata Topics and Keywords THEMESORCATEGORIESOFTHERESOURCE elevation CONTENT TYPE Downloadable Data EXPORT TO FGDC CSDGM XML FORMAT AS RESOURCE DESCRIPTION No S Elie, La Salle, Norquay, Cartier, Portage La Praire, Upstream of Elie, La Salle Subwatershed S Canada > Manitoba THESAURUS TITLE CEONET
Page 2 of 14 Hide Thesaurus THEME KEYWORDS Earth Science > Land Surface > Topography > Terrain Elevation THESAURUS TITLE GCMD Hide Thesaurus Hide Topics and Keywords Citation TITLE La Salle Upstream of Elie Watershed LiDAR CREATION DATE 2009-05-01 00:00:00 EDITION 1.0 EDITION DATE 2010-09-08 PRESENTATION FORMATS * digital map Hide Citation Citation Contacts RESPONSIBLE PARTY INDIVIDUAL'S NAME Jason Vanrobaeys ORGANIZATION'S NAME Agriculture & Agri-Food Canada - Science & Technology Branch CONTACT'S POSITION Senior Land Resource Specialist CONTACT'S ROLE point of contact CONTACT INFORMATION PHONE VOICE (204) 822-7580 ADDRESS TYPE CITY postal Morden ADMINISTRATIVE AREA Manitoba POSTAL CODE R6M 1Y5 COUNTRY CA DELIVERY POINT 101 Route 100, Unit 200 E-MAIL ADDRESS jason.vanrobaeys@agr.gc.ca Hide Contact information Hide Citation Contacts Resource Details DATASET LANGUAGES * English (CANADA) DATASET CHARACTER SET utf8-8 bit UCS Transfer Format
Page 3 of 14 SPATIAL REPRESENTATION TYPE * grid * PROCESSING ENVIRONMENT Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3300 ARCGIS ITEM PROPERTIES * NAME es24_wslas * LOCATION file://w:\mbr_lib\elv\es2\4_\ws\es24_wslas * ACCESS PROTOCOL Local Area Network Hide Resource Details Extents EXTENT GEOGRAPHIC EXTENT BOUNDING RECTANGLE EXTENT TYPE Extent used for searching * WEST LONGITUDE -98.220483 * EAST LONGITUDE -97.688226 * NORTH LATITUDE 50.009684 * SOUTH LATITUDE 49.879015 * EXTENT CONTAINS THE RESOURCE Yes EXTENT IN THE ITEM'S COORDINATESYSTEM * WEST LONGITUDE 556000.000000 * EAST LONGITUDE 594000.000000 * SOUTH LATITUDE 5526000.000000 * NORTH LATITUDE 5540000.000000 * EXTENT CONTAINS THE RESOURCE Yes Hide Extents Resource Points of Contact POINT OF CONTACT INDIVIDUAL'S NAME ORGANIZATION'S NAME CONTACT'S POSITION CONTACT INFORMATION PHONE Jarrett Powers Agriculture & Agri-Food Canada - Science & Technology Branch Manager VOICE (204) 259-4010 ADDRESS TYPE both 200-303 Main Street Winnipeg MB R3C 3G7 CA jarrett.powers@agr.gc.ca DELIVERY POINT CITY ADMINISTRATIVE AREA POSTAL CODE COUNTRY E-MAIL ADDRESS Hide Contact information Hide Resource Points of Contact
Page 4 of 14 Resource Maintenance RESOURCE MAINTENANCE UPDATE FREQUENCY not planned Hide Resource Maintenance Spatial Reference ARCGIS COORDINATE SYSTEM * TYPE Projected * GEOGRAPHIC COORDINATE REFERENCE GCS_North_American_1983 * PROJECTION NAD_1983_UTM_Zone_14N * COORDINATE REFERENCE DETAILS PROJECTED COORDINATE SYSTEM WELL-KNOWN IDENTIFIER 26914 X ORIGIN -5120900 Y ORIGIN -9998100 XY SCALE 450445547.3910538 Z ORIGIN -100000 Z SCALE 10000 M ORIGIN -100000 M SCALE 10000 XY TOLERANCE 0.001 Z TOLERANCE 0.001 M TOLERANCE 0.001 HIGH PRECISION true LATEST WELL-KNOWN IDENTIFIER 26914 WELL-KNOWN TEXT PROJCS["NAD_1983_UTM_Zone_14N",GEOGCS ["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID ["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT ["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER ["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER ["Central_Meridian",-99.0],PARAMETER["Scale_Factor",0.9996],PARAMETER ["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26914]] REFERENCE SYSTEM IDENTIFIER * VALUE 26914 * CODESPACE EPSG * VERSION 7.11.2 Hide Spatial Reference Spatial Data Properties GEORECTIFIED GRID * NUMBER OF DIMENSIONS 2 AXISDIMENSIONSPROPERTIES DIMENSION TYPE column (x-axis) * DIMENSION SIZE 38000 * RESOLUTION 1.000000 Meter AXISDIMENSIONSPROPERTIES DIMENSION TYPE row (y-axis) * DIMENSION SIZE 14000 * RESOLUTION 1.000000 Meter
Page 5 of 14 * CELL GEOMETRY area * POINT IN PIXEL center * TRANSFORMATION PARAMETERS ARE AVAILABLE Yes * CHECK POINTS ARE AVAILABLE No CORNER POINTS * POINT 556000.000000 5526000.000000 * POINT 556000.000000 5540000.000000 * POINT 594000.000000 5540000.000000 * POINT 594000.000000 5526000.000000 * CENTER POINT 575000.000000 5533000.000000 Hide Georectified Grid ARCGIS RASTER PROPERTIES GENERAL INFORMATION * PIXEL DEPTH 32 * COMPRESSION TYPE RLE * NUMBER OF BANDS 1 * RASTER FORMAT GRID * SOURCE TYPE continuous * PIXEL TYPE floating point * NO DATA VALUE -3.4028235e+038 * HAS COLORMAP No * HAS PYRAMIDS Yes Hide ArcGIS Raster Properties Hide Spatial Data Properties Spatial Data Content IMAGE DESCRIPTION * TYPE OF INFORMATION physical measurement BAND INFORMATION * DESCRIPTION es24_wslas UNITS * SYMBOL Meter * NUMBER OF BITS PER VALUE 32 Hide Spatial Data Content Data Quality SCOPE OF QUALITY INFORMATION RESOURCE LEVEL attribute Hide Scope of quality information DATA QUALITY REPORT -QUANTITATIVE ATTRIBUTE ACCURACY
Page 6 of 14 DIMENSION vertical MEASURE DESCRIPTION Attribute accuracy was performed using a histogram with a lower limit of - 0.15m and upper limit of +0.15m as its confidence interval (i.e. 1 standard deviation) to determine how many points fell within tolerance. From analysis a negative shift of 0.175m in elevation was performed to increase the accuracy of the data. QUANTITATIVE TEST RESULTS VALUE 99.45 percent VALUE TYPE CONFORMANCE TEST RESULTS TEST PASSED Yes Hide Data quality report - Quantitative attribute accuracy DATA QUALITY REPORT -QUANTITATIVE ATTRIBUTE ACCURACY DIMENSION horizontal MEASURE DESCRIPTION Horizontal accuracy is verified in a comparison of Lennon Trilogy data (a partner with Fugro Horizon) and AAFC data. 3 points were used in determining horizontal accuracy. CONFORMANCE TEST RESULTS TEST PASSED Yes RESULT EXPLANATION within tolerance Hide Data quality report - Quantitative attribute accuracy Hide Data Quality Lineage WHEN THE PROCESS OCCURRED 2010-09-01 00:00:00 DESCRIPTION Individual Digital Ortho Photo images were mosaicked in ArcCatalog. The ortho sheets are created with a 1m ground resolution, 2000 metres by 2000 metres on the Universal Transverse Mercator Projection (UTM), Zone 14, on the North American Datum 1983 (NAD83). For verification purposes AESB conducted ground survey verification using a survey-grade RTK Trimble GPS. Natural Resource Canada's geodetic monuments were used for the control points for the AESB survey. The Fugro LiDAR points were imported into Microsoft Excel from the ArcGIS point shape files. Within Excel, histograms were created to display LiDAR point elevation data. The histograms display the frequency of difference between the surveyed points and LiDAR imagery. The histogram results are based on road data and cultivation data. The LiDAR point file was converted to a raster 1m pixel cell size and calculated against the LiDAR imagery. The histograms from Figure 1 (in the attached document) use a lower limit of -0.15m and upper limit of +0.15m as its confidence interval (i.e. 1 standard deviation). PROCESS STEP Hide Process step Hide Lineage Geoprocessing history PROCESS
Page 7 of 14 PROCESS NAME DATE 2010-01-29 16:50:19 TOOL LOCATION C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\RasterCatalogToRasterDataset COMMAND ISSUED RasterCatalogToRasterDataset W:\gis_dev\lidar\temp\Elie_LiDAR.gdb\Lidar_Cataloge W:\gis_dev\lidar\temp\Elie_LiDAR.gdb\Lidar_Cataloge_RasterCatalog # LAST FIRST # NONE 32_BIT_FLOAT NONE NONE CACULATE_FROM_ALL # INCLUDE IN LINEAGE WHEN EXPORTING METADATA No PROCESS PROCESS NAME DATE 2012-05-08 12:55:05 TOOL LOCATION c:\program files (x86)\arcgis\desktop10.0\arctoolbox\toolboxes\data Management Tools.tbx\CalculateStatistics COMMAND ISSUED CalculateStatistics W:\mbr_lib\elv\es2\4_\ws\es24_wslas 1 1 # No INCLUDE IN LINEAGE WHEN EXPORTING METADATA PROCESS PROCESS NAME DATE 2012-05-08 13:00:28 TOOL LOCATION c:\program files (x86)\arcgis\desktop10.0\arctoolbox\toolboxes\data Management Tools.tbx\BuildPyramids COMMAND ISSUED BuildPyramids W:\mbr_lib\elv\es2\4_\ws\es24_wslas No INCLUDE IN LINEAGE WHEN EXPORTING METADATA PROCESS PROCESS NAME DATE 2012-05-08 13:26:20 TOOL LOCATION c:\program files (x86)\arcgis\desktop10.0\arctoolbox\toolboxes\data Management Tools.tbx\CalculateStatistics COMMAND ISSUED CalculateStatistics W:\mbr_lib\elv\es2\4_\ws\es24_wslas 1 1 # No INCLUDE IN LINEAGE WHEN EXPORTING METADATA PROCESS PROCESS NAME DATE 2012-05-08 13:29:48 TOOL LOCATION c:\program files (x86)\arcgis\desktop10.0\arctoolbox\toolboxes\data Management Tools.tbx\CalculateStatistics COMMAND ISSUED CalculateStatistics W:\mbr_lib\elv\es2\4_\ws\es24_wslas 1 1 # No INCLUDE IN LINEAGE WHEN EXPORTING METADATA Hide Geoprocessing history Distribution DISTRIBUTOR AVAILABLE FORMAT * NAME Raster Dataset TRANSFER OPTIONS * TRANSFER SIZE -2042.108
Page 8 of 14 ONLINE SOURCE * LOCATION file://\\pfwpg02\gis\mbr_lib\elv\es2\4_\ws\es24_wslas * ACCESS PROTOCOL Local Area Network * DESCRIPTION Downloadable Data Hide Distributor DISTRIBUTION FORMAT * NAME Raster Dataset Hide Distribution Metadata Details * METADATA LANGUAGE English (CANADA) * METADATA CHARACTER SET utf16-16 bit UCS Transfer Format SCOPE OF THE DATA DESCRIBED BY THE METADATA SCOPE NAME * dataset * dataset * LAST UPDATE 2015-05-28 ARCGIS METADATA PROPERTIES METADATA FORMAT ArcGIS 1.0 STANDARD OR PROFILE USED TO EDIT METADATA FGDC CREATED IN ARCGIS FOR THE ITEM 2010-09-14 20:57:09 LAST MODIFIED IN ARCGIS FOR THE ITEM 2015-05-28 14:40:32 AUTOMATIC UPDATES HAVE BEEN PERFORMED Yes LAST UPDATE 2015-05-28 14:40:32 Hide Metadata Details Metadata Contacts METADATA CONTACT INDIVIDUAL'S NAME ORGANIZATION'S NAME CONTACT'S POSITION CONTACT INFORMATION PHONE Jarrett Powers Agriculture & Agri-Food Canada - Science & Technology Branch Manager VOICE (204) 259-4010 ADDRESS TYPE CITY both Winnipeg Manitoba R3C 3G7 CA 200-303 Main Street jarrett.powers@agr.gc.ca ADMINISTRATIVE AREA POSTAL CODE COUNTRY DELIVERY POINT E-MAIL ADDRESS
Page 9 of 14 Hide Contact information Hide Metadata Contacts Metadata Maintenance MAINTENANCE UPDATE FREQUENCY not planned Hide Metadata Maintenance Thumbnail and Enclosures THUMBNAIL THUMBNAIL TYPE JPG Hide Thumbnail and Enclosures FGDC Metadata (read-only) Identification CITATION CITATION INFORMATION ORIGINATOR Fugro Horizons, Inc. PUBLICATION DATE December 10, 2009 TITLE La Salle Upstream of Elie Watershed LiDAR GEOSPATIAL DATA PRESENTATION FORM raster digital data ONLINE LINKAGE \\pfwpg02\gis\mbr_lib\elv\es2\4_\ws\es24_wslas DESCRIPTION ABSTRACT A Digital Elevation Model (DEM) was produced for an area of approximately 190 square kilometres in the headwaters of the La Salle River upstream of Elie, Manitoba. The LiDAR system combines laser, GPS and Inertial technology to measure the earth's surface. Three-dimensional points are collected, from which a bald earth ground model can be derived. For deliverables, 78 ground thinned tiles in a 1-metre evenly spaced grid to create a Digital Elevation Model (DEM) for the study area were supplied. The data was captured by Fugro Horizons as an add-on to a Manitoba Provincial project that was capturing a swath of LiDAR data along the La Salle River centerline. PURPOSE DEM's can be used as source elevation data for digital orthophotos, and, as layers in geographic information systems, for earth science analysis. DEM's can also serve as tools for volumetric analysis, for site location of towers, or for drainage basin delineation. The ESRI GRID format allows for analysis involving elevation data and also provides for the possibility of contour generation. The data is to define the watershed sub-basin with high resolution elevation information to improve hydrologic modeling within the area. TIME PERIOD OF CONTENT TIME PERIOD INFORMATION RANGE OF DATES/TIMES BEGINNING DATE April 1, 2009 BEGINNING TIME unknown
Page 10 of 14 ENDING DATE May 30th, 2009 ENDING TIME unknown CURRENTNESS REFERENCE ground condition STATUS PROGRESS Complete MAINTENANCE AND UPDATE FREQUENCY Unknown SPATIAL DOMAIN BOUNDING COORDINATES WEST BOUNDING COORDINATE -98.220483 EAST BOUNDING COORDINATE -97.688226 NORTH BOUNDING COORDINATE 50.009684 SOUTH BOUNDING COORDINATE 49.879015 KEYWORDS THEME THEME KEYWORD THESAURUS THEME KEYWORD elevation ISO 19115 Topic Category THEME THEME KEYWORD THESAURUS THEME KEYWORD THEME KEYWORD THEME KEYWORD THEME KEYWORD THEME KEYWORD none digital elevation model LiDAR Light Distance and Ranging geoscientific information environment THEME THEME KEYWORD THESAURUS THEME KEYWORD GCMD Earth Science > Land Surface > Topography > Terrain Elevation PLACE THESAURUS none Elie Stream of Elie La Salle Norquay Cartier Portage La Praire Upstream of Elie La Salle Subwatershed PLACE THESAURUS CEONET Canada > Manitoba ACCESS CONSTRAINTS N/A USE CONSTRAINTS N/A POINT OF CONTACT CONTACT INFORMATION CONTACT ORGANIZATION PRIMARY CONTACT ORGANIZATION Branch Agri-Culture & Agri-Food Canada - Argi-Environment Services
Page 11 of 14 CONTACT PERSON CONTACT POSITION CONTACT ADDRESS Jarrett Powers A/Ag-Info Manager ADDRESS TYPE mailing address ADDRESS 200-303 CITY Winnipeg STATE OR PROVINCE Manitoba POSTAL CODE R3C 3G7 COUNTRY Canada CONTACT VOICE TELEPHONE 1-204-984-8881 CONTACT ELECTRONIC MAIL ADDRESS Jarett.Powers@agr.gc.ca SECURITY INFORMATION SECURITY CLASSIFICATION Sensitive NATIVE DATA SET ENVIRONMENT Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000 Hide Identification Data Quality ATTRIBUTE ACCURACY ATTRIBUTE ACCURACY REPORT Attribute accuracy was performed using a histogram with a lower limit of -0.15m and upper limit of +0.15m as its confidence interval (i.e. 1 standard deviation) to determine how many points fell within tolerance. From analysis the data was within specification. QUANTITATIVE ATTRIBUTE ACCURACY ASSESSMENT ATTRIBUTE ACCURACY VALUE 89% ATTRIBUTE ACCURACY EXPLANATION 4247 Survey points were used in comparison with the Elie Elevation data. 3770 of the survey points fell within the deviation of ± 0.15cm. 477 of the survey points were outside of the specifications. Exact Values: Bin Frequency -0.3 3-0.15 321 0 1644 0.15 2126 0.3 153 More 0 LOGICAL CONSISTENCY REPORT Data was verified by ground survey verification using a survey-grade RTK Trimble GPS. Natural Resource Canada's geodetic monuments were used for identifying erroneous points. COMPLETENESS REPORT Coverage of the DEM is outlined by the Stream of Elie Sub-watershed. There are no voids or omissions. POSITIONAL ACCURACY HORIZONTAL POSITIONAL ACCURACY
Page 12 of 14 HORIZONTAL POSITIONAL ACCURACY REPORT QUANTITATIVE HORIZONTAL POSITIONAL ACCURACY ASSESSMENT HORIZONTAL POSITIONAL ACCURACY VALUE HORIZONTAL POSITIONAL ACCURACY EXPLANATION VERTICAL POSITIONAL ACCURACY LINEAGE Horizontal accuracy is verified in a comparison of Lennon Trilogy data (a partner with Fugro Horizon) and Agri-Envionment Services Branch data. 3 points were used in determining horizontal accuracy. VERTICAL POSITIONAL ACCURACY REPORT Within tolerance QUANTITATIVE VERTICAL POSITIONAL ACCURACY ASSESSMENT VERTICAL POSITIONAL ACCURACY VALUE VERTICAL POSITIONAL ACCURACY EXPLANATION PROCESS STEP See attched report for full details. Vertical accuracy is verified in a comparison of Lennon Trilogy data (a partner with Fugro Horizon) and the DEM. Multiple cultivation and road points from LTL were verified tolerances. PROCESS DESCRIPTION PROCESS DATE 2010-09-01 Within Tolerance When comparing the Lennon Trilogy test points to the LiDAR elevation, areas that were within a 0.15m deviation were within tolerance. 78 Individual tiles were mosaicked in ArcCatalog. The tiles are a raster product derived from 1m evenly spaced grid of three dimensional points. Each tile is 2000 metres by 2000 metres and in a Universal Transverse Mercator Projection (UTM), Zone 14, on the North American Datum 1983 (NAD83). For verification purposes AESB conducted ground survey verification using a surveygrade RTK Trimble GPS. Natural Resource Canada's geodetic monuments were used for the control points for the AESB survey. The Fugro LiDAR points were imported into Microsoft Excel from the ArcGIS point shape files. Within Excel, histograms were created to display LiDAR point elevation data. The histograms display the frequency of difference between the surveyed points and LiDAR imagery. The histogram results are based on road data and cultivation data. The LiDAR point file was converted to a raster 1m pixel cell size and calculated against the LiDAR imagery. The histograms from Figure 1 (in the attached document) use a lower limit of -0.15m and upper limit of +0.15m as its confidence interval (i.e. 1 standard deviation). PROCESS CONTACT CONTACT INFORMATION CONTACT ORGANIZATION PRIMARY CONTACT ORGANIZATION Branch CONTACT PERSON CONTACT POSITION CONTACT ADDRESS ADDRESS TYPE CITY Agri-Culture & Agri-Food Canada - Argi-Environment Services Cole Rak-Banville GIS Analyst mailing address Winnipeg Manitoba R3C 3G7 Canada STATE OR PROVINCE POSTAL CODE COUNTRY
Page 13 of 14 CONTACT VOICE TELEPHONE 1-204-983-2244 CONTACT ELECTRONIC MAIL ADDRESS HOURS OF SERVICE 7:30-3:45 cole.rak-banville@agr.gc.ca PROCESS STEP PROCESS DESCRIPTION Dataset copied. SOURCE USED CITATION ABBREVIATION W:\mbr_lib\elv\es2\4_\ws\es24_wslas PROCESS DATE 2010-09-14 PROCESS TIME 20:57:09 CLOUD COVER Unknown Hide Data Quality Spatial Data Organization DIRECT SPATIAL REFERENCE METHOD Raster RASTER OBJECT INFORMATION RASTER OBJECT TYPE Grid Cell ROW COUNT 14000 COLUMN COUNT 38000 VERTICAL COUNT 1 Hide Spatial Data Organization Spatial Reference HORIZONTAL COORDINATE SYSTEM DEFINITION PLANAR PLANAR COORDINATE INFORMATION PLANAR COORDINATE ENCODING METHOD COORDINATE REPRESENTATION ABSCISSA RESOLUTION 1.000000 ORDINATE RESOLUTION 1.000000 PLANAR DISTANCE UNITS meters row and column 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 VERTICAL COORDINATE SYSTEM DEFINITION ALTITUDE SYSTEM DEFINITION ALTITUDE RESOLUTION 1.000000 ALTITUDE ENCODING METHOD Hide Spatial Reference Explicit elevation coordinate included with horizontal coordinates Distribution Information RESOURCE DESCRIPTION STANDARD ORDER PROCESS Offline Data
Page 14 of 14 DIGITAL FORM DIGITAL TRANSFER INFORMATION TRANSFER SIZE -2042.108 Hide Distribution Information Metadata Reference METADATA DATE 2011-07-15 METADATA CONTACT CONTACT INFORMATION CONTACT ORGANIZATION PRIMARY CONTACT ORGANIZATION Branch CONTACT PERSON CONTACT POSITION CONTACT ADDRESS ADDRESS TYPE CITY Agri-Culture & Agri-Food Canada - Argi-Environment Services Cole Rak-Banville GIS Analyst mailing address Winnipeg Manitoba R3C 3G7 Canada STATE OR PROVINCE POSTAL CODE COUNTRY CONTACT VOICE TELEPHONE 1-204-983-2244 CONTACT ELECTRONIC MAIL ADDRESS HOURS OF SERVICE 7:30-3:45 METADATA STANDARD NAME METADATA STANDARD VERSION METADATA TIME CONVENTION cole.rak-banville@agr.gc.ca FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time Hide Metadata Reference