IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
Searching for updated Mars albedo maps, The planet last had a facelift in 2018
Antdoghalo
post Jul 20 2023, 06:28 PM
Post #1


Member
***

Group: Members
Posts: 223
Joined: 13-October 09
From: Olympus Mons
Member No.: 4972



I have been looking for Mars albedo maps and it is a pain to find them at decent resolution and they are all really outdated.

The easy to find global one is a low resolution one from the MGS TES from before the 2001 duststorm: https://astrogeology.usgs.gov/search/map/Ma...ic_global_7410m

There exists a higher resolution albedo dataset from after this duststorm but its in an odd binary format unable to easily be transformed into an image: https://sharad.psi.edu/inertia/2007/albedo.html

Then there is the Mars Express one but this one is sadly very hastily put together with holes and seams all over it from the different orbital swaths, dated ten years ago as ESA has seemingly abandoned the mapping of Mars Express imagery a while back. https://www.cosmos.esa.int/web/psa/mars-maps

Has anyone had any better luck locating more up to date albedo maps of the red planet? I am specifically looking for one from after the "Oppy killer" dust storm in 2018.


--------------------
"Thats no moon... IT'S A TRAP!"
Go to the top of the page
 
+Quote Post
mcaplinger
post Jul 20 2023, 09:30 PM
Post #2


Senior Member
****

Group: Members
Posts: 2504
Joined: 13-September 05
Member No.: 497



https://astrogeology.usgs.gov/search/map/Ma...ily-Global-Maps are MARCI global maps for the first two Mars years of MRO.

The raw MARCI images are in PDS but I'll admit processing them is probably painful. I got out of that game after MGS.


--------------------
Disclaimer: This post is based on public information only. Any opinions are my own.
Go to the top of the page
 
+Quote Post
Antdoghalo
post Jul 21 2023, 06:20 AM
Post #3


Member
***

Group: Members
Posts: 223
Joined: 13-October 09
From: Olympus Mons
Member No.: 4972



QUOTE (mcaplinger @ Jul 20 2023, 04:30 PM) *
https://astrogeology.usgs.gov/search/map/Ma...ily-Global-Maps are MARCI global maps for the first two Mars years of MRO.

The raw MARCI images are in PDS but I'll admit processing them is probably painful. I got out of that game after MGS.

Yeah I previously was able to make a cloud map from that database after combining like 9 maps from band 1 at different seasons. Unfortunately with albedo it doesn't work as easily. Hellas keeps appearing as bright as an ice cap in all bands.


--------------------
"Thats no moon... IT'S A TRAP!"
Go to the top of the page
 
+Quote Post
Antdoghalo
post Jul 21 2023, 06:26 AM
Post #4


Member
***

Group: Members
Posts: 223
Joined: 13-October 09
From: Olympus Mons
Member No.: 4972



Someone was able to get the 2007 binary map converted for me and its only in somewhat better shape than the ESA map given it is at least complete though has many bad passes here and there.


--------------------
"Thats no moon... IT'S A TRAP!"
Go to the top of the page
 
+Quote Post
kymani76
post Jul 21 2023, 06:54 AM
Post #5


Member
***

Group: Members
Posts: 346
Joined: 20-June 07
From: Slovenia
Member No.: 2461



There is also Mars Express Omega NIR albedo map available here.
It hasn't been updated since 2013 and there are coverage gaps, but it has higher resolution than MGS maps.

edit: Sorry I was too hasty, the link was already posted. Mods can delete this post. Thank you.
Go to the top of the page
 
+Quote Post
Antdoghalo
post Jul 21 2023, 06:59 AM
Post #6


Member
***

Group: Members
Posts: 223
Joined: 13-October 09
From: Olympus Mons
Member No.: 4972



That is the aforementioned Mars Express map.


--------------------
"Thats no moon... IT'S A TRAP!"
Go to the top of the page
 
+Quote Post
JohnVV
post Jul 21 2023, 02:42 PM
Post #7


Member
***

Group: Members
Posts: 890
Joined: 18-November 08
Member No.: 4489



QUOTE (Antdoghalo @ Jul 21 2023, 01:26 AM) *
Someone was able to get the 2007 binary map converted for me and its only in somewhat better shape than the ESA map given it is at least complete though has many bad passes here and there.



on the AlbMY26map map i can run ISIS3's "dstrip" program on it and remove some but not all of the stripping
Attached Image


on the right is the destriped map
Go to the top of the page
 
+Quote Post
kymani76
post Jul 23 2023, 09:25 PM
Post #8


Member
***

Group: Members
Posts: 346
Joined: 20-June 07
From: Slovenia
Member No.: 2461



Attached Image

I couldn't resist playing with this dataset and managed to extract the maps for three Mars years using IDL.
If anyone needs original images, drop me a note. There are both 8 and 32 bit versions available.
Go to the top of the page
 
+Quote Post
JohnVV
post Jul 24 2023, 02:34 PM
Post #9


Member
***

Group: Members
Posts: 890
Joined: 18-November 08
Member No.: 4489



i used isis3's dstrip tool and removed some of the stripping on the 26 map
here is a link on my g-drive
https://drive.google.com/file/d/1F3Jo_yKJDl...iew?usp=sharing
Go to the top of the page
 
+Quote Post
Bill Harris
post Nov 22 2023, 11:19 PM
Post #10


Senior Member
****

Group: Members
Posts: 2997
Joined: 30-October 04
Member No.: 105



Current albedo maps for the purpose of terrestrial visual and photo observations?
Those would be useful.

--Bill


--------------------
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 28th March 2024 - 07:55 PM
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 funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.