A New View of the Lunar South Pole from LOLA

Michael Kenneth Barker

Large-Area DEMs


All TIF files are cloud-optimized GeoTiffs (COGs) with south polar stereographic X/Y coordinates in meters and in the MOON_ME reference frame of the JPL DE421 ephemeris.

Filename format: PREFIX_LAT_PIX_STEMS.TIF

where PREFIX gives the data type (LDEM, LDEC, LDSM, LDRM, or LPSR), LAT gives the latitude limit (80S, 83S, 75S or 
60S), PIX gives the pixel scale in meters per pixel (e.g., 10MPP, 20MPP, 30MPP, 40MPP, 60MPP, etc.), and STEMS 
is an additional identifier (e.g., ADJ, ADJ_ERR, ADJ_HILL, ADJ_EFFRES, ADJ_ROUGH_100M, etc.).

For example, these are the filenames for the 20 meters/pixel DEM products which cover 80 - 90 deg South:

LDEC_80S_20MPP_ADJ.TIF - LOLA Digital Elevation Counts (LDEC, number of LOLA spots per pixel)
LDEM_80S_20MPP_ADJ.TIF - LOLA Digital Elevation Model (LDEM) giving surface height (in meters)
LDEM_80S_20MPP_ADJ_EFFRES.TIF - LDEM effective resolution (in meters)
LDEM_80S_20MPP_ADJ_ERR.TIF - LDEM surface height error (in meters)
LDEM_80S_20MPP_ADJ_HILL.TIF - LDEM hillshade (45 deg altitude, 45 deg azimuth)
LDSM_80S_20MPP_ADJ.TIF - LOLA Digital Slope Map (LDSM, in degrees)
LDSM_80S_20MPP_ADJ_ERR.TIF - LDSM slope error (in degrees)

LDEC_60S_240MPP_ADJ.TIF - 131M
LDEM_60S_240MPP_ADJ.TIF - 210M
LDEM_60S_240MPP_ADJ_EFFRES.TIF - 248M
LDEM_60S_240MPP_ADJ_ERR.TIF - 255M
LDEM_60S_240MPP_ADJ_HILL.TIF - 93M
LDSM_60S_240MPP_ADJ.TIF - 247M
LDSM_60S_240MPP_ADJ_ERR.TIF - 248M
LDEC_60S_120MPP_ADJ.TIF - 463M
LDEM_60S_120MPP_ADJ.TIF - 785M
LDEM_60S_120MPP_ADJ_EFFRES.TIF - 1000M
LDEM_60S_120MPP_ADJ_ERR.TIF - 1016M
LDEM_60S_120MPP_ADJ_HILL.TIF - 354M
LDSM_60S_120MPP_ADJ.TIF - 972M
LDSM_60S_120MPP_ADJ_ERR.TIF - 1001M
LDEC_60S_60MPP_ADJ.TIF - 1.5G
LDEM_60S_60MPP_ADJ.TIF - 2.9G
LDEM_60S_60MPP_ADJ_EFFRES.TIF - 3.9G
LDEM_60S_60MPP_ADJ_ERR.TIF - 4.0G
LDEM_60S_60MPP_ADJ_HILL.TIF - 1.4G
LDSM_60S_60MPP_ADJ.TIF - 3.8G
LDSM_60S_60MPP_ADJ_ERR.TIF - 3.9G
LDEC_75S_30MPP_ADJ.TIF - 489M
LDEM_75S_30MPP_ADJ.TIF - 2.7G
LDEM_75S_30MPP_ADJ_EFFRES.TIF - 3.8G
LDEM_75S_30MPP_ADJ_ERR.TIF - 3.8G
LDEM_75S_30MPP_ADJ_HILL.TIF - 1.3G
LDSM_75S_30MPP_ADJ.TIF - 3.6G
LDSM_75S_30MPP_ADJ_ERR.TIF - 3.7G
LDEC_80S_80MPP_ADJ.TIF - 111M
LDEM_80S_80MPP_ADJ.TIF - 181M
LDEM_80S_80MPP_ADJ_EFFRES.TIF - 239M
LDEM_80S_80MPP_ADJ_ERR.TIF - 244M
LDEM_80S_80MPP_ADJ_HILL.TIF - 85M
LDSM_80S_80MPP_ADJ.TIF - 231M
LDSM_80S_80MPP_ADJ_ERR.TIF - 239M
LDEC_80S_40MPP_ADJ.TIF - 369M
LDEM_80S_40MPP_ADJ.TIF - 685M
LDEM_80S_40MPP_ADJ_EFFRES.TIF - 955M
LDEM_80S_40MPP_ADJ_ERR.TIF - 964M
LDEM_80S_40MPP_ADJ_HILL.TIF - 330M
LDSM_80S_40MPP_ADJ.TIF - 912M
LDSM_80S_40MPP_ADJ_ERR.TIF - 944M
LDEC_80S_20MPP_ADJ.TIF - 1.3G
LDEM_80S_20MPP_ADJ.TIF - 2.6G
LDEM_80S_20MPP_ADJ_EFFRES.TIF - 3.8G
LDEM_80S_20MPP_ADJ_ERR.TIF - 3.7G
LDEM_80S_20MPP_ADJ_HILL.TIF - 1.3G
LDSM_80S_20MPP_ADJ.TIF - 3.6G
LDSM_80S_20MPP_ADJ_ERR.TIF - 3.7G
LDEC_83S_10MPP_ADJ.TIF - 415M
LDEM_83S_10MPP_ADJ.TIF - 4.8G
LDEM_83S_10MPP_ADJ_EFFRES.TIF - 7.5G
LDEM_83S_10MPP_ADJ_ERR.TIF - 7.5G
LDEM_83S_10MPP_ADJ_HILL.TIF - 2.5G
LDSM_83S_10MPP_ADJ.TIF - 7.1G
LDSM_83S_10MPP_ADJ_ERR.TIF - 7.0G

Roughness products


LDRM_80S_*MPP_ADJ_ROUGH_*M.TIF - LOLA Digital Roughness Map (LDRM, in meters). This is 
the spread of height residuals of individual LOLA spots around a plane fit to the LDEM within a circular window whose 
diameter is equal to a baseline of *M meters.
LDRM_80S_1000MPP_ADJ_ROUGH_100M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_ROUGH_200M.TIF - 1.4M
LDRM_80S_1000MPP_ADJ_ROUGH_400M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_ROUGH_800M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_ROUGH_1600M.TIF - 1.5M
LDRM_80S_50MPP_ADJ_ROUGH_100M.TIF - 616M
LDRM_80S_50MPP_ADJ_ROUGH_200M.TIF - 600M
LDRM_80S_50MPP_ADJ_ROUGH_400M.TIF - 603M
LDRM_80S_50MPP_ADJ_ROUGH_800M.TIF - 593M
LDRM_80S_50MPP_ADJ_ROUGH_1600M.TIF - 584M

LDRM_80S_*MPP_ADJ_SLP_*M.TIF - The corresponding slope (in degrees) of the plane fit for a baseline of *M meters.
LDRM_80S_1000MPP_ADJ_SLP_100M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_SLP_200M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_SLP_400M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_SLP_800M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_SLP_1600M.TIF - 1.5M
LDRM_80S_50MPP_ADJ_SLP_100M.TIF - 591M
LDRM_80S_50MPP_ADJ_SLP_200M.TIF - 582M
LDRM_80S_50MPP_ADJ_SLP_400M.TIF - 563M
LDRM_80S_50MPP_ADJ_SLP_800M.TIF - 542M
LDRM_80S_50MPP_ADJ_SLP_1600M.TIF - 523M

LDRM_80S_*MPP_ADJ_ROUGH_RGB.TIF - Color-composite RGB image of multi-baseline roughness for baselines of 50 - 1000 m. Note that the 50-m baseline roughness is taken from the LOLA single-shot roughness product (LDRM_40S_1000M_NN.IMG) already archived on the PDS.
LDRM_80S_1000MPP_ADJ_ROUGH_RGB.TIF - 2.2M
LDRM_80S_50MPP_ADJ_ROUGH_RGB.TIF - 924M

LDRM_80S_*MPP_ADJ_RMSD_*M.TIF - RMS height deviation (in meters) between a central point and 
surrounding annulus with diameter equal to the baseline of *M meters.
LDRM_80S_1000MPP_ADJ_RMSD_100M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_RMSD_200M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_RMSD_400M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_RMSD_800M.TIF - 1.5M
LDRM_80S_1000MPP_ADJ_RMSD_1600M.TIF - 1.5M
LDRM_80S_50MPP_ADJ_RMSD_100M.TIF - 588M
LDRM_80S_50MPP_ADJ_RMSD_200M.TIF - 577M
LDRM_80S_50MPP_ADJ_RMSD_400M.TIF - 559M
LDRM_80S_50MPP_ADJ_RMSD_800M.TIF - 536M
LDRM_80S_50MPP_ADJ_RMSD_1600M.TIF - 509M

LDRM_80S_*MPP_ADJ_H.TIF - Hurst exponent.
LDRM_80S_1000MPP_ADJ_H.TIF - 1.4M
LDRM_80S_50MPP_ADJ_H.TIF - 552M

LDRM_80S_1000MPP_ADJ_CLASS.TIF - 438K - K-means class based on the multi-baseline roughness spectrum.
LDRM_80S_1000MPP_ADJ_AVGROUGH.TIF - 1.7M - Average standardized roughness (sigma) over all baselines.
LDRM_80S_1000MPP_ADJ_SPSLP.TIF - 1.7M - Roughness spectral slope (sigma/km) over all baselines.

Permanently Shadowed Region (PSR) products

All PSRs (N=506349):
LPSR_80S_20MPP_ADJ.TIF - 148M - PSR map
LPSR_80S_20MPP_ADJ.CSV - 209M - Comma-separated value table
LPSR_80S_20MPP_ADJ.DBF - 117M - Attribute database
LPSR_80S_20MPP_ADJ.PRJ - 368 - Projection
LPSR_80S_20MPP_ADJ.SHP - 154M - Shapefile
LPSR_80S_20MPP_ADJ.SHX - 3.9M - Shape index

Only PSRs with area > 1 km2 (N=1531):
LPSR_80S_20MPP_ADJ_1km2.CSV - 28M - Comma-separated value table
LPSR_80S_20MPP_ADJ_1km2.DBF - 360K - Attribute database
LPSR_80S_20MPP_ADJ_1km2.PRJ - 368 - Projection
LPSR_80S_20MPP_ADJ_1km2.SHP - 20M - Shapefile
LPSR_80S_20MPP_ADJ_1km2.SHX - 12K - Shape index

Narrow Angle Camera (NAC) images and simulated images

M*_20MPP_MODEL.TIF - Simulated image using the 20MPP LDEM (units of W/m^2).
M*E_20MPP.TIF - 20MPP NAC image map-projected onto the 20MPP LDEM (units of I/F).
M1188426614_20MPP_MODEL.TIF - 30M
M1188426614LE_20MPP.TIF - 1.4M
M1188426614RE_20MPP.TIF - 1.4M
M1311409938_20MPP_MODEL.TIF - 69M
M1311409938LE_20MPP.TIF - 2.9M
M1311409938RE_20MPP.TIF - 2.9M
M1312308500_20MPP_MODEL.TIF - 85M
M1312308500LE_20MPP.TIF - 3.1M
M1312308500RE_20MPP.TIF - 3.1M
M139356343_20MPP_MODEL.TIF - 73M
M139356343LE_20MPP.TIF - 2.1M
M139356343RE_20MPP.TIF - 2.1M
M139729686_20MPP_MODEL.TIF - 35M
M139729686LE_20MPP.TIF - 2.3M
M139729686RE_20MPP.TIF - 2.3M
M151364517_20MPP_MODEL.TIF - 64M
M151364517LE_20MPP.TIF - 2.5M
M151364517RE_20MPP.TIF - 2.5M
M154940551_20MPP_MODEL.TIF - 76M
M154940551LE_20MPP.TIF - 1.3M
M154940551RE_20MPP.TIF - 1.3M
M155368056_20MPP_MODEL.TIF - 68M
M155368056LE_20MPP.TIF - 2.3M
M155368056RE_20MPP.TIF - 2.3M
M184288222_20MPP_MODEL.TIF - 62M
M184288222LE_20MPP.TIF - 2.5M
M184288222RE_20MPP.TIF - 2.5M

Point clouds of individual spots

File format is binary double precision, 4 columns: X,Y,Z,ID where X,Y are the stereographic coordinates (in meters), Z is the surface height (in meters) and ID is the LOLA RDR ID.

LDEM_80S_ADJ.XYZI - 13G - For products with 20MPP or LDRM in the filename.
LDEM_60S_ADJ.XYZI - 48G - For all other products.

Data Usage Policy

Please cite this paper when using these products:

Barker et al., 2023 Planet. Sci. J., 4, 183. https://doi.org/10.3847/PSJ/acf3e1


Product Keywords