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Orthophoto Meta Data 2002


Orthophotos 2002 - Panchromatic

Name(s) Orthophotos; Black & White; Panchromatic; Grayscale
Flight Date August 2002 and September 2002
Spatial Domain Outlying Tucson Area: Sahuarita, Green Valley, Vail Unicorporated Pima County
Format GeoTiff Image File Format 
Feature type raster
Resolution 0.5, 1, 4, 16 foot resolution
Horizontal Control Arizona State Plane Central Zone NAD83 (international feet)
Additional info Total aerial coverage consists of 354 sections
Source Pima Association of Governments

Orthophotos 2002 - Color

Name(s) Orthophotos; Color; 3-band RGB
Flight Date August 2002 and September 2002
Spatial Domain Surrounding Tucson Area: Eastern Pima County  Southern Pinal County
Format GeoTiff Image File Format 
Feature type raster
Resolution 1 foot resolution
Horizontal Control Arizona State Plane Central Zone NAD83 (international feet)
Additional info Total aerial coverage consists of 32400 sections Eastern Pima County (3060 sections), Southern Pinal County (212 sections) 
Source Pima Association of Governments

Orthophotos 2002 - Digital Terrain Models - DTMs

Name(s) DTM-Digital Terrain Models
Format ASCII Point files, based on 30 foot grids
Control NAD83(92 adjustment) and NGVD88 files provided in NAVD29 and NGVD88
Accuracy Relates to standards for 1' = 200', 2.00 foot c.i. photogrammetric mapping (verticle accuracy is +/- 0.5 feet on any given point of the dataset
File Specifications
  • DTM consist of line (.lf) , point (.pt) XYZ (East, North, Elevation)
  • DTM include breaklines, mass points and exclusion polygons
  • DTM file structure utilizes a number two (2) for breaklines and number eight (8) for exclusion polygons
  • DTM collected at 50.00 foot intervals (Grid)

Orthophoto 2002 - 2.00 foot Contours

Name(s) 2.00 foot Contours
Creation Date Created with delivered imagery
Spatial Domain Outlying Tucson area; Unincorporated Pima County
Feature type Lines
Origination Contour created from DTMs
Horizontal/Vertical State Plane Coordinate System NAD83
Two vertical controls utilized:NGVD29 & NAVD88
VERTCON software utilized to obtain the orthometric height
Format ESRI shapefiles (shp)

AutoCad Rev14 drawings (dwg)


Orthophotos 2002 - Exclusionary Polygons

Name(s) Exclusionary Polygons
Creation Date Created with delivered imagery
Spatial Domain Outlying Tucson area; Unincorporated Pima County
Feature Type Polygons (e.g. 151113cx.shp)
Data Fields Field Name: Type
2: 2' contour interval
3: 2' contour interval within an exclusionary polygon
10: 10' contour interval
11: 10' contour interval within an exclusionary polygon
100:100' contour interval
101: 100' contour interval within an exclusionary polygon
Origination Created from elevation model
Horizontal/Vertical State Plane Coordinate System NAD83
One vertical controls utilized:NGVD29 & NAVD88
 
Format ESRI Shapefiles (shp)
 

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