--- MITgcm/doc/tag-index	2002/07/13 05:00:16	1.78
+++ MITgcm/doc/tag-index	2002/09/18 16:38:01	1.86
@@ -1,8 +1,87 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.78 2002/07/13 05:00:16 heimbach Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.86 2002/09/18 16:38:01 mlosch Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint46g_post
+o Include a new diagnostic variable phiHydLow for the ocean model
+  - in z-coordinates, it is the bottom pressure anomaly
+  - in p-coordinates, it is the sea surface elevation
+  - in both cases, these variable have global drift, reflecting the mass
+    drift in z-coordinates and the volume drift in p-coordinates
+  - included time averaging for phiHydLow, be aware of the drift!
+o depth-dependent computation of Bo_surf for pressure coordinates 
+  in the ocean (buoyancyRelation='OCEANICP')
+  - requires a new routine (FIND_RHO_SCALAR) to compute density with only 
+    Theta, Salinity, and Pressure in the parameter list. This routine is 
+    presently contained in find_rho.F. This routine does not give the
+    correct density for 'POLY3', which would be a z-dependent reference
+    density.
+o cleaned up find_rho
+  - removed obsolete 'eqn' from the parameter list.
+o added two new verification experiments: gop and goz
+  (4x4 degree global ocean, 15 layers in pressure and height coordinates)
+checkpoint46g_pre
+
+checkpoint46f_post
+o Enable tangent linear (forward mode) gradient checks:
+  - extended active file handling to g_... files
+  - added TANGENT_SIMULATION to theSimulationMode
+  - extended grdchk package accordingly
+o added tangent linear setup in verification/carbon/code_ftl
+o added adjoint setup in verification/front_relax/code_ad
+
+checkpoint46e_post
+o Added new equation of state -> MDJWF
+  - EOS of McDougall et al., 2002, JAOT, submitted
+  - caveat: the equation of state is only valid for a smaller (more
+    realistic?) range of values than JMD95P/Z and UNESCO
+  - added masks to the calculation of pressure in store_pressure
+  - added more check values for density in check_eos (ini_eos.F), some of 
+    the old check values are out of the range of the MDJWF-eos, so don't
+    expect perfect matches for those 
+checkpoint46e_pre
+
+checkpoint46d_post
+o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
+  'OCEANICP', also initialised field pressure correctly in ini_eos in the 
+  case of pressure coordinates. eosType='JMD95Z' in 
+  combination with buoyancyRelation='OCEANICP' now causes an error.
+o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
+  in find_alpha/beta.
+checkpoint46d_pre
+
+o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
+  so that JMD95Z and JMD95P give approptiate static stability in find_rho. 
+
+checkpoint46c_post
+o Changes necessary for ocean in p-coordinates
+ -  Added new buoyancy relation = 'OCEANICP'
+ -  Added new parameters = gravitySign (this used to be contained inside
+    the factor dRdZ which I added when we first switched to R coordinates).
+ X GM/Redi is not compatible (yet)
+ X bottom drag and no-slip need to be debugged.
+checkpoint46c_pre
+
+checkpoint46b_post
+o Added new equation of state -> JMD95Z and JMD95P
+  - EOS of Jackett and McDougall, 1995, JAOT
+  - moved all EOS parameters into EOS.h
+  - new routines ini_eos.F, store_pressure.F
+o Added UNESCO EOS, but not recommended because it requires 
+  in-situ temperature (see JMD95)
+o Modified formatting for knudsen2.f in utils/knudsen2 and added
+  unesco.f to be used with POLY3
+checkpoint46b_pre
+
+checkpoint46a_post
+o Added (atmospheric) pressure loading
+  - new field in FFIELDS.h, etc...
+  - new cpp flag ATMOSPHERIC_LOADING
+o Changed hFacC to _hFacC in calc_phi_hyd.F
+o Added SHORTWAVE_HEATING to some files for consistency
+checkpoint46a_pre
+
 checkpoint46
 further merges from release1_p5
 o new ctrl package