Rework documentation of glc_renormalize_smb

Rework documentation of glc_renormalize_smb to be consistent with the
changes in ESCOMP/CMEPS#495

doc/source/clm-cism-coupling.rst

@@ -43,14 +43,10 @@ coupling becomes important. There are still some unhandled edge cases in this re
 significant case being when CLM dictates an amount of glacial melt that exceeds the
 available ice in a CISM grid cell), but we do take pains to achieve conservation in most
 cases. An important mechanism to achieve this conservation is via a global renormalization
-step done when mapping SMB from CLM to CISM, as described in :numref:`remapping_smb`. **By
-default, this renormalization is done when running with a two-way-coupled ice sheet that
-sends fluxes to other components (which is typically true in this case of an evolving ice
-sheet), but is turned off in other cases. This leads to small differences in the remapped
-SMB field in runs with an evolving vs. non-evolving ice sheet. This default can be
-overridden via the driver namelist variable,** ``glc_renormalize_smb``, **keeping in mind
-that setting this to** ``off`` **will break conservation for a configuration with an
-evolving, two-way-coupled ice sheet.**
+step done when mapping SMB from CLM to CISM, as described in :numref:`remapping_smb`.
+(This renormalization is done by default, but can be turned off by setting the driver
+namelist variable, ``glc_renormalize_smb`` to ``off``, keeping in mind that this will
+break conservation in a fully-coupled configuration.)
 
 Evolving ice sheet with one-way (diagnostic) coupling
 -----------------------------------------------------

doc/source/t-compsets.rst

@@ -100,14 +100,12 @@ averages will appear in the cpl/hist directory within your archive space, with n
 files are about 7 MB per year.)
 
 A T compset run that later uses these coupler history files as forcing should give
-*nearly* identical CISM results as the original run, **as long as you ensure that SMB
-renormalization is done (or not done) in both cases, as described in**
-:numref:`clm-cism-coupling`. **(For example, if the coupler history files were generated
-from a fully-coupled case with an evolving, two-way-coupled ice sheet, then in the T case
-you should set** ``glc_renormalize_smb = 'on'`` **in** ``user_nl_cpl`` **in order to
-reproduce the results of the fully-coupled case.)** Small differences arise because these
-forcing files are written with single precision, leading to roundoff error on the order of
-10\ :sup:`-7`. If you need more precision, you can add the following to ``user_nl_cpl``:
+*nearly* identical CISM results as the original run, as long as you ensure that SMB
+renormalization is done (or not done) in both cases, as described in
+:numref:`clm-cism-coupling` (based on the setting of ``glc_renormalize_smb``). Small
+differences arise because these forcing files are written with single precision, leading
+to roundoff error on the order of 10\ :sup:`-7`. If you need more precision, you can add
+the following to ``user_nl_cpl``:
 
 .. code-block:: console