On The Way To Home Plate, a possible route and calendar |
On The Way To Home Plate, a possible route and calendar |
Aug 25 2005, 01:21 PM
Post
#1
|
|
Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
As one year ago the question is launched:
Will Spirit make it? http://i16.photobucket.com/albums/b14/ustrax3/hip.jpg If Ultreya reveals to be nothing worthy then it would be faster, but... Any other guesses? -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
|
|
Aug 26 2005, 07:37 PM
Post
#2
|
|
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
One of the greatest conundrums of exploring Mars via solar cell is that the times of highest planetary insolation (SH summer) are also the times of highest atmospheric tau, because the greater insolation drives greeater atmospheric instability, which kicks more dust into the air and raises tau.
And yes, I wouldn't be at all surprised if the prevailing winds at Gusev were to shift from southerly to northerly as SH fall and winter approach. On Mars, the seasonal variations see the *air itself* precipitating out and forming the polar caps, so the theoretical highest volume of gaseous air on the planet occurs when the total extent of both polar caps is at a minimum. Which ought to happen at the equinoxes. However, as one cap sublimates down and the other builds up, the CO2 that forms the caps *must* travel, as flowing air, from one pole to the other -- so that would tend to drive northerly winds as the northen polar cap forms and the southern sublimates, while the reverse should be true when the northern cap shrinks and the southern cap grows. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
|
|
|
Aug 26 2005, 10:53 PM
Post
#3
|
|
Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
QUOTE (dvandorn @ Aug 26 2005, 08:37 PM) ...On Mars, the seasonal variations see the *air itself* precipitating out and forming the polar caps,... Doug - this is both a very sobering reminde of just how different a place Mars is and a fantasically evocotive description of an alien world I would give almost anything to experience in person. |
|
|
Lo-Fi Version | Time is now: 27th April 2024 - 12:18 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE 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 funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |