Jump to content
PDS Geosciences Node Community

Possible to get height data from LRO LOLA experiment?


veselykarel
 Share

Recommended Posts

I am looking for height data, given as (latitude, longitude, height from centre of moon), for each point on the moon's surface. In the GDRDEM files, I only found height data of the moon which was projected onto a flat surface. I need the height values to remain unprojected - e.g. the shape of the moon is still a 3 dimensional globe.

 

Is there a data set which has this height data?

Link to comment
Share on other sites

The LOLA RDR data set has the latitude, longitude, and radius values for each LOLA measurement. The RDR data are stored as binary tables in the format described by this file:

http://imbrium.mit.edu/LABEL/LOLARDR.FMT

 

The data are organized in time order in subdirectories by mission phase, here:

http://imbrium.mit.edu/DATA/LOLA_RDR/

 

Please read the LOLA RDR SIS (http://pds-geosciences.wustl.edu/lro/lro-l-lola-3-rdr-v1/lrolol_1xxx/document/rdrsis.pdf) for a complete description of the instrument's operation and the RDR data product.

 

Susie Slavney

Link to comment
Share on other sites

Hello,

    veselykarel!  

    I had the same question one month ago and have addressed it now.

   1)   The LOLA  GRD data can provide the height data you want, but you must write codes to get them. Becacuse they are provided in IMG format.    

         http://imbrium.mit.edu/BROWSE/LOLA_GDR/

         You must read the .LBL file carefully and write codes according it. This method is somewhat cumbersome. 

        (Until now, I didn't find any software that can directly transform IMG  format file to "latitude, longitude, height from centre of moon" format . So if anyone who read this topic have this kind of  

         software ,please tell me. I would be very grateful to you.)

  2) Then I found a website .

      This website provide LOLA GMT grd format files. All you need to do is to use GMT command grd2xyz to convert LOLA GMT grd format file to  

      "latitude, longitude, height from centre of moon" format file . This is very convenient, but the  LOLA GMT grd format files are not the newest, so your choice is    limited. This method really works.Here is the data format you want:

     0.03125 89.96875 0.0362709462643

     0.09375 89.96875 0.0351846255362
     0.15625 89.96875 0.0383299998939
     0.21875 89.96875 0.0407859906554
     0.28125 89.96875 0.031751986593
     0.34375 89.96875 0.0319939814508
     0.40625 89.96875 0.0350594520569
    Any more questions ,we could discuss it further.
Link to comment
Share on other sites

        (Until now, I didn't find any software that can directly transform IMG  format file to "latitude, longitude, height from centre of moon" format . So if anyone who read this topic have this kind of  

         software ,please tell me. I would be very grateful to you.)

 

I am currently working on a tool which transforms IMG files directly into meshes and/or heightmaps.. You can see the results of this work here: http://forum.celestialmatters.org/viewtopic.php?f=9&t=418&start=30

Link to comment
Share on other sites

  • 1 month later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...