UNAVCO IDV The Moho (Mohorovicic Discontinuity) and Crustal Structure

The Moho from GOCE gravity data, by GEMMA

Moho depth model from GOCE gravity data, by GEMMA, in km. North America. UNAVCO IDV display. Click for full size.

Moho depth model from GOCE gravity data, by GEMMA, in km. UNAVCO IDV display. Click for full size.

Data source in NetCDF for IDV use: mohoGOCE180.nc. This is a regular NetCDF grid file which can be used directly in the IDV.

Global Digital Map of Sediment
Data for the "Global Digital Map of Sediment" by Gabi Laske and Guy Masters (http://igppweb.ucsd.edu/~gabi/sediment.html), a global sediment model, is available here in NetCDF format for the IDV: NetCDF form of the Global Digital Map of Sediment by Laske and Masters. The data was converted to NetCDF by UNAVCO. You can use this file as a template for NetCDF formatting flat layer models.

Crust Sediment model, by Gabi Laske and Guy Masters, "thk1" grid, thickness in km of top layer (of three layers). Click for full size. UNAVCO IDV display.

CRUST2, A Global Crustal Model on a 2x2 degree grid, by Gabi Laske, Guy Masters and Christine Reif
"CRUST 2" is a global data set of 7 crustal layers, each with thickness, Vp, Vs, and density. Upper mantle Vp, Vs and density are also given, plus depth to the Moho. There are 29 2D grids of values for the whole globe (see http://igppweb.ucsd.edu/~gabi/crust2.html, http://igppweb.ucsd.edu/~gabi/rem.html).
A data file of all CRUST 2 data values is available here in netCDF format for the IDV: NetCDF form of CRUST 2.

CRUST2 model, by Gabi Laske and Guy Masters, lower mantle (layer 7) Vp. Click for full size. Full range of Vp is 6.6 to 7.3. UNAVCO IDV display.

CRUST2 model, by Gabi Laske and Guy Masters, depth to Moho, in meters. Click for full size. Compare to GOCE GEMMA Moho display above with same map projection. UNAVCO IDV display.