23 |
! Computes the eigenvalues and eigenvectors of the discrete analog |
! Computes the eigenvalues and eigenvectors of the discrete analog |
24 |
! of the second derivative with respect to longitude. |
! of the second derivative with respect to longitude. |
25 |
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use acc_m, only: acc |
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26 |
USE dimens_m, ONLY: iim |
USE dimens_m, ONLY: iim |
27 |
USE dynetat0_m, ONLY: xprimu, xprimv |
USE dynetat0_m, ONLY: xprimu, xprimv |
28 |
use jumble, only: new_unit |
use jumble, only: new_unit |
61 |
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62 |
delta = matmul(deriv_v, deriv_u) ! second derivative at v longitudes |
delta = matmul(deriv_v, deriv_u) ! second derivative at v longitudes |
63 |
CALL jacobi(delta, eignval_v, eignfnv) |
CALL jacobi(delta, eignval_v, eignfnv) |
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CALL acc(eignfnv) |
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64 |
CALL eigsrt(eignval_v, eignfnv) |
CALL eigsrt(eignval_v, eignfnv) |
65 |
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66 |
delta = matmul(deriv_u, deriv_v) ! second derivative at u longitudes |
delta = matmul(deriv_u, deriv_v) ! second derivative at u longitudes |
67 |
CALL jacobi(delta, eignval_u, eignfnu) |
CALL jacobi(delta, eignval_u, eignfnu) |
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CALL acc(eignfnu) |
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68 |
CALL eigsrt(eignval_u, eignfnu) |
CALL eigsrt(eignval_u, eignfnu) |
69 |
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70 |
call new_unit(unit) |
call new_unit(unit) |