TerraServer Web Map Server (US)

[[email protected]]

You can now retrieve extreme close up B&W sat photo maps of your U.S.
site already georeferenced in lat/long grid projection. Watch yourself
roll down the centerline in SeeYou?

The TerraServer has added an OGC web map server for the USGS digital
ortho photoquads: No more guessing the corner coordinates of the photo
map on the screen. No more warped, crooked tiles in funny UTM
projection. No more hand mosaic'ing.

You just specify the desired corner latitudes and longitudes in decimal
degrees and the desired width and height in pixels (up to 2000 by
2000), and up pops a picture ready to "right click, save as".

Play with the bbox, width, and height parameters in the long link that
replaces the nice small one given. Or play with the map controls form
on the left side of the webpage. But be aware that the map controls
don't always seem to update the link in the address window when they
update the picture.

Warning: the underlying data for a square degree is hundreds and
hundreds of megabytes, all of which the server will try to retrieve and
number crunch to honor such a request. Unless the land area requested
is small, even at low resolution, the server won't finish reprojecting
your photo map in any reasonable length of time. If your desired area
doesn't start appearing promptly, you might start smaller and work up.
Scroll down to see error messages (It likes the width and height
resolutions to come out roughly equal).

http://tinyurl.com/5etwh

Jonathan Gere
ASW-20C, 34

http://www.terraserver-usa.com/OgcWms.aspx?version=1.1.1&request=GetMap&Layers=doq&Styles=GEOGrid_Cyan&SRS=EPSG:4326&BBOX=-77.37,39.75,-77.33,39.77&width=696&height=425&format=image/jpeg&Exceptions=se_xml

[[email protected]]

Jonathan,

Useful tool. Thanks for the link.

I did some browsing of images hoping to use them for non-aviation
purposes... some of them are very old, on the order of 12 years +. For
example, the Frederick Arpt image is prior to the construction of
30/12. My house, built in 1990, is also missing. Many areas appear to
be composites of diffenent satellite passes, though I can't readily
determine major time differences. Is there any indication that the site
is attempting to keep its image bank reasonably current, or will we
just have to make due with what's there?

wrote:
> You can now retrieve extreme close up B&W sat photo maps of your U.S.
> site already georeferenced in lat/long grid projection. Watch
yourself
> roll down the centerline in SeeYou?
>
> The TerraServer has added an OGC web map server for the USGS digital
> ortho photoquads: No more guessing the corner coordinates of the
photo
> map on the screen. No more warped, crooked tiles in funny UTM
> projection. No more hand mosaic'ing.
>
> You just specify the desired corner latitudes and longitudes in
decimal
> degrees and the desired width and height in pixels (up to 2000 by
> 2000), and up pops a picture ready to "right click, save as".
>
> Play with the bbox, width, and height parameters in the long link
that
> replaces the nice small one given. Or play with the map controls
form
> on the left side of the webpage. But be aware that the map controls
> don't always seem to update the link in the address window when they
> update the picture.
>
> Warning: the underlying data for a square degree is hundreds and
> hundreds of megabytes, all of which the server will try to retrieve
and
> number crunch to honor such a request. Unless the land area
requested
> is small, even at low resolution, the server won't finish
reprojecting
> your photo map in any reasonable length of time. If your desired
area
> doesn't start appearing promptly, you might start smaller and work
up.
> Scroll down to see error messages (It likes the width and height
> resolutions to come out roughly equal).
>
> http://tinyurl.com/5etwh
>
> Jonathan Gere
> ASW-20C, 34
>
>
http://www.terraserver-usa.com/OgcWms.aspx?version=1.1.1&request=GetMap&Layers=doq&Styles=GEOGrid_Cyan&SRS=EPSG:4326&BBOX=-77.37,39.75,-77.33,39.77&width=696&height=425&format=image/jpeg&Exceptions=se_xml

[[email protected]]

I guess that's "make do" with what's there. Fingers sometimes have a
mind of their own.