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Service Description: 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.
Map Name: Ortho 2010 - Web Mercator
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Layers:
Description: Ortho 2010 Map Service Provided by DC GIS
Copyright Text: DC GIS
Spatial Reference:
102100
(3857)
Single Fused Map Cache: true
Tile Info:
- Height: 256
- Width: 256
- DPI: 96
-
Levels of Detail: 20
-
Level ID: 0
[ Start Tile, End Tile ]
- Resolution: 156543.03392800014
- Scale: 5.91657527591555E8
-
Level ID: 1
[ Start Tile, End Tile ]
- Resolution: 78271.51696399994
- Scale: 2.95828763795777E8
-
Level ID: 2
[ Start Tile, End Tile ]
- Resolution: 39135.75848200009
- Scale: 1.47914381897889E8
-
Level ID: 3
[ Start Tile, End Tile ]
- Resolution: 19567.87924099992
- Scale: 7.3957190948944E7
-
Level ID: 4
[ Start Tile, End Tile ]
- Resolution: 9783.93962049996
- Scale: 3.6978595474472E7
-
Level ID: 5
[ Start Tile, End Tile ]
- Resolution: 4891.96981024998
- Scale: 1.8489297737236E7
- Format: MIXED
- Compression Quality: 75.0
- Origin: X: -2.0037508342787E7
Y: 2.0037508342787E7
- Spatial Reference: 102100
(3857)
Storage Info:
- Storage Format: esriMapCacheStorageModeCompactV2
- Packet Size: 128
Initial Extent:
XMin: -8594249.206458466
YMin: 4689985.958553895
XMax: -8551524.475398658
YMax: 4722552.666820914
Spatial Reference: 102100
Full Extent:
XMin: -8585223.32625324
YMin: 4690990.009210195
XMax: -8560548.54330332
YMax: 4721921.634031175
Spatial Reference: 102100
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Ortho 2010 - Web Mercator
Author:
Comments: Ortho 2010 Map Service Provided by DC GIS
Subject: Map Service for Ortho 2010 Web Mercator
Category:
Keywords: aerial photography,orthophoto,planimetrics,District of Columbia
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: false
MaxRecordCount: 1000
MaxImageHeight: 2048
MaxImageWidth: 2048
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 5.91657527591555E8
Max Scale: 1128.497176
Supports Datum Transformation: true
Child Resources:
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