Changeset 15734 for NEMO/branches/UKMO/NEMO_4.0.4_ice_strength_EAP/src/ICE/icedyn_rhg_evp.F90

Timestamp:

2022-03-03T13:00:16+01:00 (2 years ago)

Author:

emmafiedler

Message:

Opening, ridging and yield curve diagnostics (and bug fix in timing)

File:

• NEMO/branches/UKMO/NEMO_4.0.4_ice_strength_EAP/src/ICE/icedyn_rhg_evp.F90 (modified) (5 diffs)

NEMO/branches/UKMO/NEMO_4.0.4_ice_strength_EAP/src/ICE/icedyn_rhg_evp.F90

@@ -137 +137 @@
       !
       REAL(wp), DIMENSION(jpi,jpj) ::   zdelta, zp_delt                 ! delta and P/delta at T points
-      REAL(wp), DIMENSION(jpi,jpj) ::   zten_i                          ! tension
+      REAL(wp), DIMENSION(jpi,jpj) ::   zten_i, zshear                  ! tension, shear
       REAL(wp), DIMENSION(jpi,jpj) ::   zbeta                           ! beta coef from Kimmritz 2017
       !
@@ -773 +773 @@
                &   ) * 0.25_wp * r1_e1e2t(ji,jj)
             
-            ! shear at T points
+            ! maximum shear rate at T points (includes tension, output only)
             pshear_i(ji,jj) = SQRT( zdt2 + zds2 )
+
+            ! shear at T-points
+            zshear(ji,jj)   = SQRT( zds2 )
 
             ! divergence at T points
@@ -835 +838 @@
                zsig1            =   zfac * ( pdivu_i(ji,jj) - pdelta_i(ji,jj) )
                zsig2            =   zfac * z1_ecc2 * zten_i(ji,jj)
-               zsig12           =   zfac * z1_ecc2 * pshear_i(ji,jj)
-               
+               zsig12           =   zfac * z1_ecc2 * zshear(ji,jj) * 0.5_wp
+
                ! Stress invariants (sigma_I, sigma_II, Coon 1974, Feltham 2008)
                zsig_I (ji,jj)   =   zsig1 * 0.5_wp                                           ! 1st stress invariant, aka average normal stress, aka negative pressure
-               zsig_II(ji,jj)   =   SQRT ( MAX( 0._wp, zsig2 * zsig2 * 0.25_wp + zsig12 ) )  ! 2nd  ''       '', aka maximum shear stress
+               zsig_II(ji,jj)   =   SQRT( zsig2 * zsig2 * 0.25_wp + zsig12 * zsig12 )        ! 2nd  ''       ''    , aka maximum shear stress
                
             END DO
@@ -866 +869 @@
                !                        and **deformations** at current iterates
                !                        following Lemieux & Dupont (2020)
-               zfac             =   zp_delt(ji,jj)
-               zsig1            =   zfac * ( pdivu_i(ji,jj) - ( zdelta(ji,jj) + rn_creepl ) )
+               zfac             =   strength(ji,jj) / ( pdelta_i(ji,jj) + rn_creepl )
+               zsig1            =   zfac * ( pdivu_i(ji,jj) - zdelta(ji,jj) )
                zsig2            =   zfac * z1_ecc2 * zten_i(ji,jj)
-               zsig12           =   zfac * z1_ecc2 * pshear_i(ji,jj)
-               
+               zsig12           =   zfac * z1_ecc2 * zshear(ji,jj) * 0.5_wp
+
                ! Stress invariants (sigma_I, sigma_II, Coon 1974, Feltham 2008), T-point
                zsig_I(ji,jj)    =   zsig1 * 0.5_wp                                           ! 1st stress invariant, aka average normal stress, aka negative pressure
-               zsig_II(ji,jj)   =   SQRT ( MAX( 0._wp, zsig2 * zsig2 * 0.25_wp + zsig12 ) )  ! 2nd  ''       '', aka maximum shear stress
+               zsig_II(ji,jj)   =   SQRT( zsig2 * zsig2 * 0.25_wp + zsig12 * zsig12 )        ! 2nd  ''       ''    , aka maximum shear stress
       
                ! Normalized  principal stresses (used to display the ellipse)
@@ -882 +885 @@
          END DO               
          !
-         CALL iom_put( 'sig1_pnorm' , zsig1_p ) 
-         CALL iom_put( 'sig2_pnorm' , zsig2_p ) 
+         CALL iom_put( 'sig1_pnorm' , zsig1_p(:,:) * zmsk00(:,:) ) 
+         CALL iom_put( 'sig2_pnorm' , zsig2_p(:,:) * zmsk00(:,:) ) 
       
          DEALLOCATE( zsig1_p , zsig2_p , zsig_I, zsig_II )