MTTmaps - Band-limited maximum-energey Green's function maps
MTTmaps <slowmodel.H x_shot= mode=0 >maps.H
slow(nz,nx) = slowness model
[0.] shot Z coordinate
[0.] first shot X coordinate
[dxo] increment in shot X coordinate
[1] number of shots
[0] grid is stationary the shot moves across the grid the second output axis coordinates are absolute. 1=grid moves with the shot, the second output axis coordinates are relative to the shot location.
[o2] initial surface coordinate (mode=0)
[d2] increment in surface coordinate (mode=0)
[n2] number of surface coordinates (mode=0)
[o1] first depth level (mode=0)
[d1] depth increments (mode=0)
[n1] number of depth levels on the grid (mode=0)
[(o2-x_shot)] first offset from shot coordinate (mode=1)
[d2] increment in offset (mode=1)
[n2] number of offsets (mode=1)
[o1] first depth level (mode=1)
[d1] depth increments (mode=1)
[n1] number of depth levels on the grid
[nxo] number of angles for the polar grid
[nzo] number of radius increments for the polar grid
[10] minimum frequency in estimation band
[60] maximum frequency in estimation band
[16] number of frequencies to use in estimation.
[.008] sampling to use for initial traveltime estimation
maps(nzo,nxo,3,n_shot) = output Green's function maps, tt/amp/phase
Band-limited maximum-energy Green's function maps
Default parameters calculate one shot at user specified output location. x_shot must be specified! The output grid will be the same as the input grid.
When calculating multiple maps you may want to specify the other parameters that control the output grid relative to each shot. There are two modes, if mode=0 the output grid is absolute. If mode=1 the output grid is relative to the shot location.
the Hwt3d manpage, the FMeikonal manpage, the Gfgradz manpage, the Hwt3d manpage;
seis/travel