--- MITgcm/doc/tag-index	2001/01/30 20:51:26	1.34
+++ MITgcm/doc/tag-index	2001/04/10 22:35:24	1.38
@@ -1,7 +1,43 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.34 2001/01/30 20:51:26 heimbach Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.38 2001/04/10 22:35:24 heimbach Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
+checkpoint38
+ o see notes_c37_adj.txt
+ o corrected wrong layer index in external_forcing_t
+ o replaced the_main_loop/forward_step by the_main_loop
+ o removed forceoutput from write_state
+   (replaced criteria for initial/final state)
+ o added runtime flag for pre-C35 pickups: usePickupBeforeC35
+
+checkpoint37
+ o mdsio.F routine split and packaged in pkg/mdsio
+   (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
+    used unless genmake -disable=mdsio)
+ o allow a more precise surface-geopotential gradient for the atmosphere
+   taking into account the change in space of Alpha (=1/rho) at the surface.
+ o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
+   (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
+ o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
+   Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
+   [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
+ o Time-Average diagnostics defined as a pseudo package "timeave".
+ o pickup files : old pickup (before c35) did not work with new code (c35
+   and after) unless activating 2 commented lines in initialise-varia.
+ o Non-Hydrostatic pickup file Pb fixed.
+ o bug with Rigid-lid version (since c35) fixed.  
+
+checkpoint36
+ o implement Crank-Nickelson barotropic time-stepping
+ o recover Time-Average diagnostics
+ o fix Pb in checkpoint (PR#19) 
+ o AIM become a standard package ; clean unused CPP_kees
+
+checkpoint35
+ o subtantial rewrite of dynamics.f
+ o allows staggered time-stepping
+ o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
+ o added bottom drag (linear + quadratic)
 
 checkpoint34
  o Modified exchange routines for correct reverse simulation.