CTM
We are using jupyter notebook developed by Liz Hearn to calculate CTM values at points defined for the GFM.
Contents
GFM Points
AP has created a discretized version of the GFM. The coverage region for the GFM is similar to the CVM-H GTL coverage region. Corner points from the GFM grid are listed below.
The resolution of the GFM 3D voxel data set is 10km x 10km x 1km (depth).
Each level of the GFM has 8256 points, and the depth goes from -100km to +4km (8256 x 105 = 866880) points.
A CSV file that defines the GFM region types for each of these points is posted here:
- GFM Points (Warning 45MB download)
The points in this file use the CVM-H convention of elevation relative to sea level in meter, with positive values above sea level, and negative values depth below sea level.
GFM Region Definitions
Corner Points from GFM file:
-122.681200, 29.709900 -123.205500, 37.335600 -112.481200, 37.412300 -112.864200, 29.767300
Corner Points of CVM-H GTL from CVM-H Users Guide:
-122.541004,30.70459 -122.541004,38.545964 -112.995797,38.545964 -112.995797,30.70459
KML file showing model coverage regions
Heatflow Region IDs and Names
ID's for the 14 original CTM heat flow regions, from Thatcher and Chapman (2020): 1 WBR (Western Basin and Range) 2 SN (Sierra Nevada) 3 CCR (Central Coast Ranges) 4 PR (Peninsular Ranges) 5 ST (Outer Salton Trough, aka oST) 6 WTR (Western Transverse Ranges) 7 LA (Los Angeles) 8 SG (San Gabriels) 9 MD (Mojave Desert) 10 GV (Great Valley) 11 ETR (Eastern Transverse Ranges) 12 iST (Inner Salton Trough, also called STi5 in some files) 13 iCB (Inner Continental Borderland) 14 VB (Ventura Basin) (the following were added to expand CTM region to cover the Geologic Framework region) 15 Ocean 16 CCR extension 17 GV extension 18 SN extension 19 WBR extension 20 ST extension 21 PR extension
