About Voyager Index:
For more information about our Voyager map tool, contact:
Last modified: 26 Feb 2019
Jules Verne Voyager is a precision interactive map tool for the World Wide Web,
developed at UNAVCO, Boulder, Colorado, USA. It was originally developed
to better visualize the inter-relationships of geophysical and geologic processes,
structures, and measurements with high-precision GPS monument data and solutions on
Voyager works equally well for visualizing other planets and moons, and we
are collecting a set of data for most major bodies of the Solar System.
See the Solar System Portal or
Jules Verne Voyager for current links.
which sends commands to our jules server, where images are produced using the
Generic Mapping Tools (GMT)
and are then sent back to the user's browser when finished. The creation time for
a map is anywhere from a few seconds to a minute or so depending on how complex the
final map image is.
This site has been partially funded by a grant from the National Science Foundation.
Which Web browser to use?
it must be enabled on your browser. Any recent version should work.
What's unique about the Voyager map tool?
There are now many interactive map tools available on the Web (a big increase since 1996 when we
started on this site); in fact, we maintain a list of those that we know about at
Informations Sources: Other map sites.
Here is what we still consider to be the unique aspects of the Voyager map tool:
You can immediately
on any local map. (You don't have to change states on the tool, don't have to click a submit button, and so on.)
But, just remember — we can't stress this enough:
clicking on a point on a local map initiates a pan
dragging a box over a region on a local map initiates a zoom
Your zoom region is totally in your control. This includes being able to do a zoom centered on a pole when starting
from the default global map. (You are not restricted to a x2, or x5, or other fixed factor zooms.)
Each zoomed-in map is a Lambert azimuthal equal-area projection, which means the local map region appears
very much the way it would if examining a physical globe. (I.e. you will not see highly distorted
features at high latitudes or at the poles.)
You can easily generate a high-quality ' view from space' index map for any zoomed-in map.
This also means you can view any dataset as it would appear on a globe from any direction.
In fact, sometimes the index maps are the most stunning images you will produce — though they
usually take longer to generate.
Using URL extentions, you can be in complete control how your initial Voyager map of any world
starts up, including initial zoomed-in or ' view from space' maps, with any initial set of features,
and even setting the overall size of the map space in the browswer.
(You don't have to go through a laborious menu process to get to where you want to be.)
This is the only Web site that allows you to explore the 1.1 km resolution
Face of the Earth texture map of
ARC Science Simulations, which is a seamless image
of the natural surface colors of the Earth (based on NOAA-11 image data).
For most maps, you are able to download either a raster image (GIF format) or a PostScript file.
(The only exception is for maps using ARC's Face of the Earth :
only the GIF raster image is made available in this case.)
Not unique, but rare: Each world that can be accessed the Voyager Web map tool
has a thumbnail overview of the various datasets that can be displayed, e.g. the one for
Mars is the
Mars Features Help.
Not unique, but rare: It's easy to keep track of new Voyager dataset updates by periodically checking the
What's New page.
Not unique, but rare: The Voyager Web map tool uses a GMT
engine. As far as we know, it's still the only GMT-powered Web map site that gives you anything
close to the above set of user-friendly features, and on a wide variety of worlds.
In addition to our Informations Sources,
special thanks to:
Paul Wessel and Walter Smith for developing GMT
and helping us with some early problems (without GMT, this site would not have been possible)
Tom Ligon and Pam Patel at ARC Science Simulations
for helping us acquire their stunning Face of the Earth data set
Bob Pappalardo (CU Boulder) and Tammy Becker and colleagues (USGS, Flagstaff) for providing
us with the latest composite images of the galilean moons (plus Bob's help with technical
questions about terminology in the IAU/USGS planetary gazetteer)
Ron Blakey (Northern Arizona University) for providing his high-resolution paleoearth reconstructions
numerous UNAVCO staff since summer 1997 (with a protoptype of this site) to the present:
Myron McCallum, Natalie Anderson, Mike Garritano, Mike Miccuci, Amy Rosewater, Susan Jeffries,
Jeff Braucher, Joel Davidow, Stu Duncan, Lou Estey, Jim Riley
all the people in the gmt-help list
who help us solve problems, fix bugs, and find workarounds in our use of
GMT on this site
all the other great people at NASA, JPL, USGS, NOAA, various universities, and
so on who have been working for years to collect and organize all the datasets shown on this site
and all the people responsible for UNIX/Linux, Java, Perl, Apache and so on
that is also used to make this site possible
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