Orthophotos 2000 - Panchromatic
| Name(s) |
Orthophotos; Black & White; Panchromatic; Grayscale |
| Flight Date |
November 2000, March 2001 (Depending on flight area) |
| Spatial Domain |
Urbanized Tucson Area: Marana, Oro Valley, Sahuarita, Green Valley, Unicorporated Pima County |
| Format |
Tagged Image File Format ( TIFF uncompressed) |
| Feature type |
raster |
| Resolution |
0.5, 1, 4, 16 foot resolution |
| Horizontal Control |
Arizona State Plane Central Zone NAD83 (international feet) |
| Additional info |
- TFW (tiff world file) lists the coordinate for the upper left corner of the image and cell size
- Total aerial coverage consist of 678 sections
- Aerial photo height: +- 3,600 feet
- 9x9 contacts on file at PAG
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| Source |
Pima Association of Governments |
Orthophotos 2000 - 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)
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Orthophotos 2000 - Digital Elevation Models - DEMs
| Name(s) |
DEM-Digital Elevation Models |
| Format |
ASCII Point Files, based on 30 five 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 |
- DEM should not be utilized to create contours
- DEM are line (.lf) files only
- DEM collected at 30.00 foot intervals
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Orthophotos 2000 - 2.00 foot Contours
| Name(s) |
2.00 foot Contours or 10.00 foot Contours in limited areas |
| Creation Date |
Created with delivered imagery |
| Spatial Domain |
Urbanized 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 2000 - Exclusionary Polygons
| Name(s) |
Exclusionary Polygons |
| Creation Date |
Created with delivered imagery |
| Spatial Domain |
Urbanized Tucson area; Unincorporated Pima County |
| Feature Type |
Polygons (e.g. 151113ex.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 ploygon |
| 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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