IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
The first hiking maps of Mars
Guest_AlexBlackwell_*
post Feb 12 2007, 06:12 PM
Post #1





Guests






The first hiking maps of Mars
European Space Agency
February 12, 2007
Go to the top of the page
 
+Quote Post
Guest_AlexBlackwell_*
post Feb 12 2007, 06:25 PM
Post #2





Guests






Check out Emily's latest blog entry.
Go to the top of the page
 
+Quote Post
Marz
post Feb 12 2007, 07:51 PM
Post #3


Member
***

Group: Members
Posts: 280
Joined: 31-August 05
From: Florida & Texas, USA
Member No.: 482



I was definitely on Emily's wavelength! 250m contour intervals on most of the maps! ohmy.gif

Maybe for an expert like Climber, that's a walk in the park, but even a 20m contour can hide some pretty spooky slopes, at least for 1G hikers.
Go to the top of the page
 
+Quote Post
algorimancer
post Feb 13 2007, 02:12 PM
Post #4


Member
***

Group: Members
Posts: 587
Joined: 20-April 05
From: League City, Texas
Member No.: 285



Am I correctly recalling that Nasa/USGS was producing topographic maps of the Martian surface at least as far back as the Viking missions?
Go to the top of the page
 
+Quote Post
remcook
post Feb 13 2007, 03:03 PM
Post #5


Rover Driver
****

Group: Members
Posts: 1002
Joined: 4-March 04
Member No.: 47



I'm looking at one from 1976, based on Mariner data
Go to the top of the page
 
+Quote Post
algorimancer
post Feb 13 2007, 03:50 PM
Post #6


Member
***

Group: Members
Posts: 587
Joined: 20-April 05
From: League City, Texas
Member No.: 285



As I thought. I can't wait to hear them announce the first mapping of hematite at Meridiani smile.gif
Go to the top of the page
 
+Quote Post
nprev
post Feb 13 2007, 05:42 PM
Post #7


Senior Member
****

Group: Moderator
Posts: 7027
Joined: 8-December 05
From: Los Angeles
Member No.: 602



QUOTE (algorimancer @ Feb 13 2007, 06:12 AM) *
Am I correctly recalling that Nasa/USGS was producing topographic maps of the Martian surface at least as far back as the Viking missions?


I never saw a contoured one, but I do have several of the USGS airbrushed Mariner 9 maps circa 1973-74...beautiful things, used to look at them for hours (esp. Tharsis).


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
scalbers
post Aug 25 2007, 04:07 PM
Post #8


Member
***

Group: Members
Posts: 811
Joined: 5-March 05
From: Boulder, CO
Member No.: 184



My recollection is that they do have contours. I should dig mine out if I can find them. It looks like this summary has that 1976 topo map listed:

http://astrogeology.usgs.gov/Projects/MapB...mars_small.html


--------------------
Go to the top of the page
 
+Quote Post
Phil Stooke
post Aug 25 2007, 04:56 PM
Post #9


Senior Member
****

Group: Members
Posts: 5688
Joined: 5-April 05
From: Canada
Member No.: 227



I didn't notice this discussion at the time, so here goes...

USGS made topo maps from Mariner 9 and Viking data. Global maps were from very sparse and weak data - like atmospheric density estimated from occultations. Local details could be go from stereo images - very few in Mariner 9 data, lots in Viking. But stereo is no good globally for a big place like Mars (the orientation of the stereo model is not constrained), so topo was still poor for Viking.

Nevertheless, global maps at 1:25 million and 1:15M were compiled, and the 1:5M sheets had a topo version as well. For Viking, 1:2M topo was produced for some sheets of the 120-sheet series. Viking landing site maps included topo at 1:250K.

But only with MOLA did we get good topo globally. And we still lack it for the Moon.

Phil


--------------------
... because the Solar System ain't gonna map itself.
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 23rd September 2014 - 10:22 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.