1987_Black_and_White_Imagery (Map Service)
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Current Version: 10.81
Service Description: This layer contains scanned black and white aerial photos based on the Austin 200' grid, taken by United Aerial Mapping in March 1987. Many images are missing from the collection or may be available in 1” = 100’
A python GIS script was used to rapidly clip the images and georeference them versus doing them by hand which would have taken several months. The aerial photos were not scanned uniformaly, so there was not a high accuracy in the first place.
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Description: This layer contains scanned black and white aerial photos based on the Austin 200' grid, taken by United Aerial Mapping in March 1987. Many images are missing from the collection or may be available in 1” = 100’
A python GIS script was used to rapidly clip the images and georeference them versus doing them by hand which would have taken several months. The aerial photos were not scanned uniformaly, so there was not a high accuracy in the first place.
102739
Single Fused Map Cache: true
Capabilities: Map,TilesOnly
Tile Info:
- Height: 256
- Width: 256
- DPI: 96
- Levels of Detail: (# Levels: 12)
- Level ID: 0 [Start Tile, End Tile]
Resolution: 533.3333333333333
Scale: 614400.0
- Level ID: 1 [Start Tile, End Tile]
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Scale: 307200.0
- Level ID: 2 [Start Tile, End Tile]
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Scale: 153600.0
- Level ID: 3 [Start Tile, End Tile]
Resolution: 66.66666666666666
Scale: 76800.0
- Level ID: 4 [Start Tile, End Tile]
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Scale: 38400.0
- Level ID: 5 [Start Tile, End Tile]
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Scale: 19200.0
- Level ID: 6 [Start Tile, End Tile]
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Scale: 9600.0
- Level ID: 7 [Start Tile, End Tile]
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- Level ID: 8 [Start Tile, End Tile]
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Scale: 2400.0
- Level ID: 9 [Start Tile, End Tile]
Resolution: 1.0416666666666665
Scale: 1200.0
- Level ID: 10 [Start Tile, End Tile]
Resolution: 0.5208333333333333
Scale: 600.0
- Level ID: 11 [Start Tile, End Tile]
Resolution: 0.26041666666666663
Scale: 300.0
- Format: JPEG
- Compression Quality: 75
- Origin:
X: -1.248055E8
Y: 1.72281E8
- Spatial Reference:
102739
Initial Extent: XMin: 3052952.3842460276
YMin: 1.0001264485827921E7
XMax: 3161949.420497482
YMax: 1.0160634174732279E7
Spatial Reference:
102739
Full Extent: XMin: 3057906.79498473
YMin: 1.00085085625963E7
XMax: 3156995.00975878
YMax: 1.01533900979639E7
Spatial Reference:
102739
Min Scale: 614400.0
Max Scale: 300.0
Min LOD: 0
Max LOD: 11
Units: esriFeet
Supported Image Format Types: JPEG
Export Tiles Allowed: false
Max Export Tiles Count: 100000
Document Info: - Title: 1987 Black and White Imagery
- Author: CTM.Basemaps
- Comments:
- Subject: 1987 Aerial Imagery
- Category:
- Keywords: 1987, Imagery, Aerial, Basemap, Aerial Imagery, Historical Imagery, Aerails