View In:   ArcGIS JavaScript   ArcGIS Online Map Viewer   ArcGIS Earth   ArcMap   ArcGIS Pro

View Footprint In:   ArcGIS Online Map Viewer

Service Description: 2017 Orthophoto - 3 inch resolution: This document describes the processes used to create the orthoimagery data produced for the District of Columbia from 2017 digital aerial photography. It was flown in early March, completed on March 8, 2017. DUE TO TECHNICAL DIFFICULTIES, THE DOWNTOWN AREA IS NOT COMPRISED OF TRUE ORTHOIMAGERY. THE CONTRACTOR MINIMIZED BUILDING LEAN USING THE INCREASED SIDELAP OF IMAGERY. The aerial imagery acquisition was flown to support the creation of 4-band digital orthophotography with a 3 inch/0.08 meter pixel resolution over the full project area covering the District of Columbia which is approximately 69 square miles. The contractor received waivers to fly in the Flight Restricted Zone (FRZ) and P-56 areas. The ortho imagery was submitted to DC OCTO in GeoTiff/TFW format tiles following the tile scheme provided by OCTO. MrSID and JPEG2000 compressed mosaics were delivered as well using a 50:1 compression ratio. 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.

Map Name: Ortho 2017

Legend

All Layers and Tables

Layers:

• Ortho 2017 (0)

Description:

Copyright Text: DC GIS

Spatial Reference: 26985  (26985)


Single Fused Map Cache: true

Tile Info:

• Height: 512
• Width: 512
• DPI: 120
• Levels of Detail: 11
  • Level ID: 0 [ Start Tile, End Tile ]
  • Resolution: 63.50012700025401
  • Scale: 300000
  • Level ID: 1 [ Start Tile, End Tile ]
  • Resolution: 42.33341800016934
  • Scale: 200000
  • Level ID: 2 [ Start Tile, End Tile ]
  • Resolution: 21.16670900008467
  • Scale: 100000
  • Level ID: 3 [ Start Tile, End Tile ]
  • Resolution: 10.583354500042335
  • Scale: 50000
  • Level ID: 4 [ Start Tile, End Tile ]
  • Resolution: 5.291677250021167
  • 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: 0.21166709000084669
  • Scale: 1000
  • Level ID: 10 [ Start Tile, End Tile ]
  • Resolution: 0.10583354500042334
  • Scale: 500
• Format: MIXED
• Compression Quality: 75.0
• Origin: X: 379605.402
  Y: 148256.304
  
• Spatial Reference: 26985  (26985)
  

Storage Info:

• Storage Format: esriMapCacheStorageModeCompactV2
• Packet Size: 128

Initial Extent:

XMin: 374250
YMin: 118721.05263157895
XMax: 423750
YMax: 153678.94736842107
Spatial Reference: 26985  (26985)

Full Extent:

XMin: 389400
YMin: 124200
XMax: 408600
YMax: 148200
Spatial Reference: 26985  (26985)

Units: esriMeters

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

Document Info:

Title: Ortho 2017
Author:
Comments:
Subject: Ortho 2017
Category:
Keywords: ortho
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 300000

Max Scale: 500

Supports Datum Transformation: true



Child Resources:   Info

Supported Operations:   Export Map   Identify   QueryLegends   QueryDomains   Find   Return Updates   Generate KML