DC Office of the Chief Technology Officer 20041001 IMAGE.DEM_2004_3M SDE raster digital data Server=10.1.11.144; Service=5151; User=image; Version=SDE.DEFAULT DC GIS DC Geographic Information System vector digital data IMAGE.DEM_2004_3M DC GIS Digital Elevation Model - 3m resolution. The dataset contains the 3m pixel digital elevation model for the Washington Area. LIDAR data provided by the Joint Precision Strike Demonstration Project Office of the US Army contained bare earth rasters used to create the 3m basemap. The buildings and tree canopies have been removed, but the bridges and other less noticeable features that affect bare earth elevations remain. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE. This data is used for the planning and management of Washington, D.C. by local government agencies. en 20041001 ground condition Complete As needed -77.235182 -76.848854 39.043988 38.743990 379640.544712 413084.544712 119613.308450 152889.308450 none LIDAR Topography Elevation Bare Earth imageryBaseMapsEarthCover Washington, D.C. District of Columbia DC DC GIS DCGIS mailing and physical address
441 4th St NW, Suite 930 South
Washington DC 20001 USA dcgis@dc.gov 8:30am - 5:30pm Office of the Chief Technology Officer GIS Data Coordinator 202-727-5660 DC Office of the Chief Technology Officer Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500 SDE Raster Dataset Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein. Validated by source/responsible agency. The 3 Meter Cartographic Base Map is an aggregate of the 1m source LIDAR to 3m pixels using the average of the input cells to determine the output z value used to compute the hillshade value. The buildings and tree canopies have been removed from the origianl LIDAR. However, bridges and other less noticeable features that affect bare earth elevations remain. More importantly, the source bare earth was processed with automated routines ONLY that remove about 85% of all the verticle features. In process of validation by source and/or responsible agency. The source bare earth LIDAR was processed using automated methods only, so not all of the verticle features were removed from the LIDAR. Also, the source bare earth was corrected for vegetation and buildings, but still contains bridges and several small areas of single pixel lines containing zero values. Although aggregating the 1m LIDAR to 3m pixels will remove some off these edges, some verticle feature "anomolies" will still occur in appear in the basemap. In process of validation by source and/or responsible agency. Unknown N/A US Army - Joint Precision Strike Demonstration Project Office 10/2004 Light Detection and Ranging (LIDAR) Data Entire LIDAR data product includes: - Digital Elevation Model (dem) - 32-bit floating point gridded matrix - First Return DEM - designated by a1 - Last Return DEM - designated by a2 - Intensity Image (int) - 8-bit - Color Coded Shaded Relief Image (clr) - 24-bit - Merged Intensity-Color Coded Shaded Relief Image (mrg) - 24-bit raster LIDAR data location and attribution Staff mosaiced the 1m LIDAR rasters at a 3 meter cell size using "Mosaic to New Raster" tool, with the following settings Projection: MD State Plane 1983 Pixel Type: 32 bit signed Cell size: 3 m Number of bands: 1, First, last. Staff aggregated the source bare earth 1m cells to 3m using the average of the input cells to determine the output cell value. E:\DCGISDATA_WORKSPACE\Metadata\TemplateDCGIS.shp.xml 3/16/06 Office of the Chief Technology Officer GIS Data Coordinator mailing and physical address
441 4th St NW, Suite 930 South
Washington DC 20001 USA 202-727-5660 dcgis@dc.gov 8:30am - 5:30pm Metadata imported. E:\DCGISDATA_OTHER\CartographicBasemap\CartoBkGrnd_5m.sid.xml 20060316 Metadata imported. E:\DCGISDATA_OTHER\CartographicBasemap\CartoBkGrnd_3m_DC.tif.xml 20061005 Metadata imported. W:\DCGISDATA_OTHER\DEM2004\DEM2004_3m.img.xml 20070807 Raster Entity point 1486 Pixel 11092 11148 3.000000 3.000000 32 1 Upper Left FALSE LZ77 1 pixel codes SDR TRUE row and column 3.000000 3.000000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983 NAD_1983_StatePlane_Maryland_FIPS_1900 1.000000 Explicit elevation coordinate included with horizontal coordinates Band_1 Table 256 ObjectID ObjectID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Value Value Integer 0 0 0 Count Count Integer 0 0 0 Band_2 Table 256 ObjectID ObjectID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Value Value Integer 0 0 0 Count Count Integer 0 0 0 Band_3 Table 222 ObjectID ObjectID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Value Value Integer 0 0 0 Count Count Integer 0 0 0 DC Office of the Chief Technology Officer GIS Data Coordinator mailing and physical address
441 4th St NW, Suite 930 South
Washington DC 20001 USA (202) 727-5660 dcgis@dc.gov 8:30 am - 5:30 pm Offline Data 0.000 0.000 Contact OCTO GIS. Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein. 20090903 12/16/05 D.C. Office of the Chief Technology Officer GIS Data Coordinator mailing and physical address
441 4th St NW, Suite 930 South
Washington DC 20001 USA (202) 727-5660 dcgis@dc.gov 8:30 am - 5 pm The telephone number by which individuals can speak to the organization or individual. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en 20070807 11383200 FALSE 20230928 11005100 20230928 11005100 DEM_2004_3M.tif file://\\Gisimgprd1\e\Productionfiles\Lidar_2004\DEM_2004_3M.tif Local Area Network 379640.544712 413084.544712 119613.308450 152889.308450 1 003 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_StatePlane_Maryland_FIPS_1900 <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.6'><WKT>PROJCS[&quot;NAD_1983_StatePlane_Maryland_FIPS_1900&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Lambert_Conformal_Conic&quot;],PARAMETER[&quot;False_Easting&quot;,400000.0],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,-77.0],PARAMETER[&quot;Standard_Parallel_1&quot;,38.3],PARAMETER[&quot;Standard_Parallel_2&quot;,39.45],PARAMETER[&quot;Latitude_Of_Origin&quot;,37.66666666666666],UNIT[&quot;Meter&quot;,1.0],AUTHORITY[&quot;EPSG&quot;,26985]]</WKT><XOrigin>-36747100</XOrigin><YOrigin>-29091500</YOrigin><XYScale>121236910.21292362</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26985</WKID><LatestWKID>26985</LatestWKID></ProjectedCoordinateSystem> 32 FALSE LZW 1 TIFF TRUE continuous floating point -3.4028231e+38 CopyRaster "Database Connections\Connection to dcgisprd_raster.sde\IMAGE.DEM_2004_3M" T:\DataTeam\LIDAR2004\DEM_2004_3M.tif # # -3.402823e+38 NONE NONE # NONE NONE TIFF NONE 1.0 GIS Data Coordinator D.C. Office of the Chief Technology Officer The telephone number by which individuals can speak to the organization or individual. (202) 727-5660 441 4th St NW, Suite 930 South Washington DC 20001 US dcgis@dc.gov 8:30 am - 5 pm 20090903 ArcGIS Metadata 1.0 GIS Data Coordinator DC Office of the Chief Technology Officer (202) 727-5660 441 4th St NW, Suite 930 South Washington DC 20001 US dcgis@dc.gov 8:30 am - 5:30 pm Contact OCTO GIS. Server=10.1.11.144; Service=5151; User=image; Version=SDE.DEFAULT Raster Dataset Bare_Earth_2004 2004-10-01 DC Office of the Chief Technology Officer DC GIS SDE raster digital data DC Geographic Information System Digital Elevation Model - 3m resolution. The dataset contains the 3m pixel digital elevation model for the Washington Area. LIDAR data provided by the Joint Precision Strike Demonstration Project Office of the US Army contained bare earth rasters used to create the 3m basemap. The buildings and tree canopies have been removed, but the bridges and other less noticeable features that affect bare earth elevations remain. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE. This data is used for the planning and management of Washington, D.C. by local government agencies. DC Office of the Chief Technology Officer GIS Data Coordinator Office of the Chief Technology Officer 202-727-5660 441 4th St NW, Suite 930 South Washington DC 20001 US dcgis@dc.gov 8:30am - 5:30pm Washington D.C. District of Columbia DC DC GIS DCGIS LIDAR Topography Elevation Bare Earth imageryBaseMapsEarthCover LIDAR Topography Elevation Bare Earth imageryBaseMapsEarthCover Washington D.C. District of Columbia DC DC GIS DCGIS Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein. Acknowledgment of the DC Geographic Information Systems Program (DC GIS). The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein. DC Geographic Information System DC GIS vector digital data Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500 true -77.235182 -76.848854 39.043988 38.743990 ground condition 2004-10-01 1 -77.235182 -76.848854 39.043988 38.743990 Validated by source/responsible agency. The 3 Meter Cartographic Base Map is an aggregate of the 1m source LIDAR to 3m pixels using the average of the input cells to determine the output z value used to compute the hillshade value. The buildings and tree canopies have been removed from the origianl LIDAR. However, bridges and other less noticeable features that affect bare earth elevations remain. More importantly, the source bare earth was processed with automated routines ONLY that remove about 85% of all the verticle features. In process of validation by source and/or responsible agency. The source bare earth LIDAR was processed using automated methods only, so not all of the verticle features were removed from the LIDAR. Also, the source bare earth was corrected for vegetation and buildings, but still contains bridges and several small areas of single pixel lines containing zero values. Although aggregating the 1m LIDAR to 3m pixels will remove some off these edges, some verticle feature "anomolies" will still occur in appear in the basemap. In process of validation by source and/or responsible agency. Unknown N/A Staff mosaiced the 1m LIDAR rasters at a 3 meter cell size using "Mosaic to New Raster" tool, with the following settings Projection: MD State Plane 1983 Pixel Type: 32 bit signed Cell size: 3 m Number of bands: 1, First, last. Staff aggregated the source bare earth 1m cells to 3m using the average of the input cells to determine the output cell value. GIS Data Coordinator Office of the Chief Technology Officer 202-727-5660 441 4th St NW, Suite 930 South Washington DC 20001 US dcgis@dc.gov 8:30am - 5:30pm E:\DCGISDATA_WORKSPACE\Metadata\TemplateDCGIS.shp.xml Metadata imported. E:\DCGISDATA_OTHER\CartographicBasemap\CartoBkGrnd_5m.sid.xml Metadata imported. E:\DCGISDATA_OTHER\CartographicBasemap\CartoBkGrnd_3m_DC.tif.xml Metadata imported. W:\DCGISDATA_OTHER\DEM2004\DEM2004_3m.img.xml location and attribution Light Detection and Ranging (LIDAR) Data LIDAR data US Army - Joint Precision Strike Demonstration Project Office Entire LIDAR data product includes: - Digital Elevation Model (dem) - 32-bit floating point gridded matrix - First Return DEM - designated by a1 - Last Return DEM - designated by a2 - Intensity Image (int) - 8-bit - Color Coded Shaded Relief Image (clr) - 24-bit - Merged Intensity-Color Coded Shaded Relief Image (mrg) - 24-bit 3 11092 3.000000 11148 3.000000 1 1 0 379640.544712 119613.308450 379640.544712 152889.308450 413084.544712 152889.308450 413084.544712 119613.308450 396362.544712 136251.308450 1486 1 0 379640.544712 119613.308450 379640.544712 152889.308450 413084.544712 152889.308450 413084.544712 119613.308450 396362.544712 136251.308450 dataset EPSG 4.5(3.0.1) Band_1 158.000000 -12.000000 32