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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)
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| 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)
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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
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| Format |
ESRI
shapefiles (shp)
AutoCad Rev14 drawings (dwg)
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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
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| Format |
ESRI
Shapefiles (shp) |
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©Pima Association of Governments | 177 N Church Ave, Suite 405, Tucson, AZ 85701 | Telephone (520) 792-1093, FAX (520) 620-6981
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