We are pleased to announce a major addition of remote datasets including:

- Reliefs grids of other celestial bodies (Moon, Mercury, Venus, Mars and Pluto)
- Mean Sea Surface
- Mean Dynamic Topography
- Distance to nearest shoreline.
- Earth Free-Air Anomaly Errors
- N-S and E-W deflection of the vertical,

We now offer a total of 25 grids. Read more about them and find the data citations on the GMT dataset documentation.

3 Likes

Awesome to have all of these grids available!

The Lunar LOLA original grid dimensions look a little strange. Using, e.g., the N/S dimension; (180/53347)*3600 gives a cell size of 12.14688 seconds. The table reports a cell size of 14.06… seconds.

Isn’t the original LOLA DEM given at 1/256 of a degree resolution (= 14.06)? In that case the dimensions of the original grid should be: 92160 x 46080.

Not sure what numbers you are using. File dimension gives these increments

**rpn 360 92160 DIV 3600 MUL**

**14.0625**

We are working from the released Tif file https://planetarymaps.usgs.gov/mosaic/Lunar_LRO_LOLA_Global_LDEM_118m_Mar2014.tif which is 92160 x 46080 and that gives 14.0625 seconds increment, which is why you need 6.5 to work with the 4 highest oddly-resolution planetary data sets.