USGS Digital Aerial Photos
We offer aerial photo imagery derived from USGS Digital Orthophoto
Quadrangles (DOQs). Imagery has been orthorectified, i.e. altered for precise mapping.
Aerial photo imagery is available over almost any area of your choice
within the continental United States at 1-meter resolution or better (at 1-meter
resolution 1meter=1pixel). Some urban area a available at 1-foot and better resolutions.
You are welcome to specify the area of your interest
by entering (1) street address (or geographical coordinates) and optionally (2) the
size of the image (width/height of the image or a geographical boundary):
Below are samples of images, the area is Miami Beach, Florida.
(Click on a sample to get a larger image).
1ft resolution USGS BW Ortho Photo with NavStreets Overlay |
1m resolution USGS Color-infrared Ortho Photo with Tiger streets Overlay |
4m resolution USGS BW Ortho Photo (no streets Overlay) |
32m resolution USGS Landsat Satellite image (no streets Overlay) |
An aerial photo image has several characteristics allowing you to
make a choice:
Resolution - resolution of the imagery, measured in meters/pixel. At 1m
(meter) resolution 1pixel of the image represents 1 square meter of the area, similarly at
1ft (foot) resolution 1pixel=1sq.ft=0.3048x0.3048 sq.m.
Base Data Type - the data source of the imagery. Currently available are
USGS Landsat Satellite Natural View color composite (32m resolution and
sparser), USGS Color Ortho Photo (color infra-red or natural color images), USGS BW Ortho Photo
(black-and-white images), USGS Color 1ft Photo (color images at 1ft resolution) and
USGS BW 1ft Photo (black-and-white images at 1ft resolution).
Size - image size measured in pixels. For example, the notation 2000x1000
describes a rectangular image of width 2000 pixels and height 1000 pixels. Note, that if the
resolution of this image is 1m, then the image covers 2x1 kilometers of the actual
geographic area.
File format - the format of the image file to be delivered to you. Two
popular image formats, JPEG and TIFF, are available. These formats are supported by many
software products and Internet browsers. Also available is a PDF Atlas suitable for printing as a brochure.
Overlay - an additional data layer over the imagery. The most popular overlay is Street Names overlay, displaying street names over the
image.
There are two options for street overlays: NavStreets (street network data
from Navigation Technologies provides the highest quality data available in
North America and Europe) and Tiger streets (produced by the United States Census; while
it has accurate geometry over many areas, offsets in street name labels is
noticeable in many cases).
Copyright and Use License
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