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Current Aerial
Photography
NAPP
Our most popular and widest
coverage of current aerial photography comes from The National Aerial Photography Program. The
National Aerial Photography Program (NAPP) provides a standardized set
of cloud-free aerial photographs covering the conterminous U.S. over
five-to-seven year cycles. The program began in 1987 and continues to
be our most recent and consistent source of high-quality aerial
photography.
The NAPP photographs were acquired from an altitude of 20,000 feet
at a scale of 1:40,000 (1"=3,333') and are available in black & white
(B/W) or
color infrared (CIR), depending on location and date. Each
photo is covers a ground area of thirty-two square miles.
The following standard print sizes and scales are available:
|
Print Size |
Enlargement |
Scale
|
1"
Equals
|
| 9 x 9 in |
1x |
1:40,000 |
3,333 ft |
| 15 x 15 in |
1.67x |
1:24,000 |
2,000 ft |
| 18 x 18 in |
2x |
1:20,000 |
1,666 ft |
| 36 x 36 in |
4x |
1:10,000 |
833 ft |
Other
Sources of Photographs
GeoMart
also has access to some large privately held
photographic libraries across the United states There is no
set standard for scale or type of photography. If you have a
library of photography and would like to make it available for
resell, please contact us at 800-248-6277.
Custom
Enlargements
Custom
enlargements may also be ordered for any selected portion of a 9" x
9" photo. This type of enlargement allows for a greater potential
enlargement factor (8x and 16x) for the selected area.
Certification
Certification services are available upon request. An official
signed document will be mechanically riveted to the photographic
product. This document will confirm the producer, the project name,
roll number, frame number, film type, size, and enlargement factor
(if any).
A photograph can only be
certified prior to the order being shipped.
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