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Service Description:

Map Name: Ortho 2010

Layers:

• Ortho2010 (0)

Description: Ortho 2010 Map Service provided by DC GIS

Copyright Text: 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.

Spatial Reference: PROJCS["NAD83 / Maryland",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["Lambert_Conformal_Conic"],PARAMETER["false_easting",400000.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-77.0],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["latitude_of_origin",37.66666666666666],UNIT["Meter",1.0]]

Single Fused Map Cache: true

Tile Info:

• Height: 512
  
• Width: 512
  
• DPI: 120
  
• Levels of Detail: (# Levels: 11)
  
• Level ID: 0 [Start Tile, End Tile]
  Resolution: 63.500127000254
  Scale: 300000
• Level ID: 1 [Start Tile, End Tile]
  Resolution: 42.3334180001693
  Scale: 200000
• Level ID: 2 [Start Tile, End Tile]
  Resolution: 21.1667090000847
  Scale: 100000
• Level ID: 3 [Start Tile, End Tile]
  Resolution: 10.5833545000423
  Scale: 50000
• Level ID: 4 [Start Tile, End Tile]
  Resolution: 5.29167725002117
  Scale: 25000
• Level ID: 5 [Start Tile, End Tile]
  Resolution: 2.54000508001016
  Scale: 12000
• Level ID: 6 [Start Tile, End Tile]
  Resolution: 1.27000254000508
  Scale: 6000
• Level ID: 7 [Start Tile, End Tile]
  Resolution: 0.63500127000254
  Scale: 3000
• Level ID: 8 [Start Tile, End Tile]
  Resolution: 0.31750063500127
  Scale: 1500
• Level ID: 9 [Start Tile, End Tile]
  Resolution: 0.211667090000847
  Scale: 1000
• Level ID: 10 [Start Tile, End Tile]
  Resolution: 0.105833545000423
  Scale: 500
• Format: PNG24
• Compression Quality: 0
• Origin:
  X: 379605.402
  Y: 148256.304
  
• Spatial Reference: PROJCS["NAD83 / Maryland",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["Lambert_Conformal_Conic"],PARAMETER["false_easting",400000.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-77.0],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["latitude_of_origin",37.66666666666666],UNIT["Meter",1.0]]

Intial Extent:

XMin: 375943.016759777
YMin: 120700.430813485
XMax: 422056.983240223
YMax: 151699.569186515
Spatial Reference: PROJCS["NAD83 / Maryland",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["Lambert_Conformal_Conic"],PARAMETER["false_easting",400000.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-77.0],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["latitude_of_origin",37.66666666666666],UNIT["Meter",1.0]]

Full Extent:

XMin: 388440
YMin: 123000
XMax: 409560
YMax: 149400
Spatial Reference: PROJCS["NAD83 / Maryland",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["Lambert_Conformal_Conic"],PARAMETER["false_easting",400000.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-77.0],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["latitude_of_origin",37.66666666666666],UNIT["Meter",1.0]]

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ

Document Info:

• Title: Ortho 2010
• Author: DCGIS
• Comments: 2010 Orthophoto - Orthoimagery data produced for the District of Columbia from spring, leaf off, 2010 digital aerial photography flown on April 2 and 3, 2010. The development of 2010 orthophoto imagery is a component of an overall project commissioned by the District of Columbia to conduct a comprehensive photogrammetric mapping and GIS update of its imagery and planimetric GIS data layers. The project area for the 2010 project covers the entire District of Columbia and immediate surrounding area equaling approximately 80 square miles. The multispectral digital imagery was used to create natural color digital orthophotography with 16cm pixel resolution. The final orthophotography deliverable products for this project consist of 328 ortho tiles in GeoTIFF format at a design scale of 1:1200 meeting an ASPRS Class 1 horizontal accuracy of 1 foot RMSExy. The ortho tile dimensions are 800 meters by 800 meters. A single corresponding MrSid image (mg3) was created by mosaicking the 328 ortho tiles together and compressing the image using an 80 to 1 compression ratio. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
• Subject: Map Service for Ortho 2010
• Category: Aerial Photography
• Keywords: aerial photography, orthophoto, planimetrics, District of Columbia
• AntialiasingMode: None
• TextAntialiasingMode: Force

Supported Interfaces:   REST   SOAP

Supported Operations:   Export Map   Identify   Find   Generate KML