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Change the empirical relationship when inverting for upper mantle

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Hongjian Fang 2023-09-29 15:08:18 +08:00
parent 37eb3e8f4b
commit ad99372e34
2 changed files with 25 additions and 5 deletions
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2
.gitignore vendored
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@ -4,4 +4,4 @@ Applications
example_*
.gitignore
temp
DSurfTomo

28
src/CalSurfG.f90
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@ -1378,13 +1378,11 @@ subroutine CalSurfG(nx,ny,nz,nparpi,vels,iw,rw,col,dsurf, &
! if required.
!
if (igrt(srcnum,knumi) == 0 .or. (ig == 2 .and. igrt(srcnum,knumi) == 1)) then
! a little stupid, remember to change latter
!if (igrt(srcnum,knumi) == 1) then
!call gridder(velf0)
!endif
count11=count11+1
CALL rpaths(x,z,fdm,rcxf(istep,srcnum,knumi),rczf(istep,srcnum,knumi))
row(1:nparpi)=0.0
! change the Brocher relationship if depth is larger than 35 km
if (depz(nz-1)<35.0) then
do jj=1,nvz
do kk=1,nvx
if(abs(fdm(jj,kk)).ge.ftol) then
@ -1402,6 +1400,28 @@ subroutine CalSurfG(nx,ny,nz,nparpi,vels,iw,rw,col,dsurf, &
endif
enddo
enddo
! use a different formulation between Vp, Vs, and Rho, according to Luosong's
else
do jj=1,nvz
do kk=1,nvx
if(abs(fdm(jj,kk)).ge.ftol) then
coe_a=(2.2110-0.8984*2*vels(kk+1,jj+1,1:nz-1)+&
0.2786*3*vels(kk+1,jj+1,1:nz-1)**2-0.02412*4*vels(kk+1,jj+1,1:nz-1)**3)
vpft=0.9098 + 2.2110*vels(kk+1,jj+1,1:nz-1) - 0.8984*vels(kk+1,jj+1,1:nz-1)**2+ &
0.2786*vels(kk+1,jj+1,1:nz-1)**3 - 0.02412*vels(kk+1,jj+1,1:nz-1)**4
coe_rho=coe_a*(1.6612-0.4721*2*vpft+&
0.0671*3*vpft**2-0.0043*4*vpft**3+&
0.000106*5*vpft**4)
row((jj-1)*nvx+kk:(nz-2)*nvz*nvx+(jj-1)*nvx+kk:nvx*nvz)=&
(sen_vp(jj*(nvx+2)+kk+1,knumi,1:nz-1)*coe_a+&
sen_rho(jj*(nvx+2)+kk+1,knumi,1:nz-1)*coe_rho+&
sen_vs(jj*(nvx+2)+kk+1,knumi,1:nz-1))*fdm(jj,kk)
endif
enddo
enddo
endif
do nn=1,nparpi
if(abs(row(nn)).gt.ftol) then
nar=nar+1