merge to cam6_4_056

ESCOMP · Jan 17, 2025 · e30e10d · e30e10d
2 parents 5719f87 + ea101b3
commit e30e10d
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diff --git a/.gitmodules b/.gitmodules
@@ -9,7 +9,7 @@
 	path = src/physics/carma/base
 	url = https://github.com/ESCOMP/CARMA_base.git
         fxrequired = AlwaysRequired
-        fxtag = carma4_01
+        fxtag = carma4_09
         fxDONOTUSEurl = https://github.com/ESCOMP/CARMA_base.git
 
 [submodule "pumas"]
@@ -36,7 +36,7 @@
 [submodule "atmos_phys"]
 	path = src/atmos_phys
 	url = https://github.com/ESCOMP/atmospheric_physics
-        fxtag = atmos_phys0_06_000
+        fxtag = atmos_phys0_07_001
         fxrequired = AlwaysRequired
 	fxDONOTUSEurl = https://github.com/ESCOMP/atmospheric_physics
 
@@ -186,7 +186,7 @@ fxDONOTUSEurl = https://github.com/NCAR/ParallelIO
 [submodule "cice"]
 path = components/cice
 url = https://github.com/ESCOMP/CESM_CICE
-fxtag = cesm_cice6_5_0_12
+fxtag = cesm3_cice6_6_0_6
 fxrequired = ToplevelRequired
 fxDONOTUSEurl = https://github.com/ESCOMP/CESM_CICE
 

diff --git a/bld/build-namelist b/bld/build-namelist
@@ -509,14 +509,6 @@ if ($phys_mode_flags > 1) {
 my $simple_phys = 0;
 if ($adia_mode or $ideal_mode) { $simple_phys = 1; }
 
-# If running either a simple physics or an aquaplanet configuration, the nitrogen
-# deposition data is not used.  These files are set in buildnml and can't be overridden
-# via user_nl_cam.  So provide an override here.
-if ($simple_phys or $aqua_mode) {
-    $nl->set_variable_value('ndep_stream_nl', 'stream_ndep_data_filename', '" "');
-    $nl->set_variable_value('ndep_stream_nl', 'stream_ndep_mesh_filename', '" "');
-}
-
 # Single column mode
 my $scam = $cfg->get('scam');
 my $scam_iop = $cfg->get('scam_iop');
@@ -705,6 +697,19 @@ if ($sim_year =~ /(\d+)-(\d+)/) {
     $sim_year_start = $1;
 }
 
+# Setup default ndep streams only if not simple_phys or aqua_mode and
+# the chemistry cannot produce the nitrogen depostion fluxes
+if (!($simple_phys or $aqua_mode)) {
+  my $chem_nitrodep = chem_has_species($cfg, 'NO') and chem_has_species($cfg, 'NH3');
+  if ((!$chem_nitrodep) or ($chem =~ /geoschem/)) {
+    add_default($nl, 'stream_ndep_mesh_filename');
+    add_default($nl, 'stream_ndep_data_filename', 'sim_year'=>$sim_year);
+    add_default($nl, 'stream_ndep_year_first', 'sim_year'=>$sim_year);
+    add_default($nl, 'stream_ndep_year_last', 'sim_year'=>$sim_year);
+    add_default($nl, 'stream_ndep_year_align', 'sim_year'=>$sim_year);
+  }
+}
+
 # Topography
 add_default($nl, 'use_topo_file');
 my $use_topo_file = $nl->get_value('use_topo_file');
@@ -1268,6 +1273,7 @@ if ($carma ne 'none') {
   add_default($nl, 'carma_model',       'val'=>$carma);
   add_default($nl, 'carma_flag',        'val'=>'.true.');
   add_default($nl, 'history_carma',     'val'=>'.true.');
+  add_default($nl, 'carma_sulfnuc_method','val'=>'ZhaoTurco');
 }
 if ($carma eq 'bc_strat') {
   add_default($nl, 'carma_do_drydep',   'val'=>'.true.');
@@ -1587,7 +1593,7 @@ if (defined $nl->get_value('prescribed_strataero_3modes')) {
 
 # determine if prescribed stratospheric aerosol data is needed
 if ( ($het_chem) || ($nl->get_value('prescribed_strataero_feedback') =~ /$TRUE/io ) ){
-    if ( ($carma ne 'sulfate') && !($nl->get_value('modal_strat_sulfate') =~ /$TRUE/io) ) { # if no prognostic stratospheric aerosols
+    if ( !($nl->get_value('modal_strat_sulfate') =~ /$TRUE/io) ) { # if no prognostic stratospheric aerosols
 
         unless (defined $nl->get_value('prescribed_strataero_type')) {
             add_default($nl, 'prescribed_strataero_type','val'=>'CYCLICAL');

diff --git a/bld/configure b/bld/configure
@@ -2323,6 +2323,7 @@ sub write_filepath
     print $fh "$camsrcdir/src/atmos_phys/schemes/tropopause_find\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/zhang_mcfarlane\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/dry_adiabatic_adjust\n";
+    print $fh "$camsrcdir/src/atmos_phys/schemes/check_energy\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/utilities\n";
 
     # Dynamics package and test utilities

diff --git a/bld/namelist_files/namelist_defaults_cam.xml b/bld/namelist_files/namelist_defaults_cam.xml
@@ -235,8 +235,6 @@
 <ncdata dyn="se" hgrid="ne120np4" nlev="30"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/ape_cam5_ne120np4_L30_c170419.nc</ncdata>
 
 <ncdata dyn="se" hgrid="ne3np4"   nlev="32"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/cam6_QPC6_aqua_ne3pg3_mg37_L32_01-01-31_c221214.nc</ncdata>
-<ncdata dyn="se" hgrid="ne3np4"   nlev="58"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/cam6_QPC6_aqua_ne3pg3_mg37_L58_01-01-31_c221214.nc</ncdata>
-<ncdata dyn="se" hgrid="ne3np4"   nlev="93"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/cam6_QPC6_aqua_ne3pg3_mg37_L93_01_02_01_c240518.nc</ncdata>
 <ncdata dyn="se" hgrid="ne5np4"   nlev="32"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/ape_cam6_ne5np4_L32_c170517.nc</ncdata>
 <ncdata dyn="se" hgrid="ne16np4"  nlev="32"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/ape_cam6_ne16np4_L32_c170509.nc</ncdata>
 <ncdata dyn="se" hgrid="ne30np4"  nlev="32"  aquaplanet="1" ic_ymd="101" >atm/cam/inic/se/ape_cam6_ne30np4_L32_c170509.nc</ncdata>
@@ -656,13 +654,13 @@
 <flbc_file chem="ghg_mam4">atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
 
 <!-- Time-variant CO2 fossil fuel emissions -->
-<co2flux_fuel_file hgrid="0.9x1.25" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="1.9x2.5"  sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="C384" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="C192" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="C96" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="C48" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
-<co2flux_fuel_file hgrid="C24" sim_year="1850-2000">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="0.9x1.25" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="1.9x2.5"  sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="C384" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="C192" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="C96" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_0.9x1.25_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="C48" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
+<co2flux_fuel_file hgrid="C24" sim_year="1850-2015">atm/cam/ggas/emissions-cmip6_CO2_anthro_surface_175001-201512_fv_1.9x2.5_c20181011.nc</co2flux_fuel_file>
 
 <ac_CO2_emis hgrid="0.9x1.25">ac_CO2_filelist_175001-201512_fv_0.9x1.25_c20181011.txt</ac_CO2_emis>
 <ac_CO2_emis hgrid="1.9x2.5" >ac_CO2_filelist_175001-201512_fv_1.9x2.5_c20181011.txt</ac_CO2_emis>
@@ -2000,6 +1998,25 @@
 <soil_erod_file phys="cam4"  >atm/cam/dst/dst_source2x2tuned-cam4-06132012.nc</soil_erod_file>
 <soil_erod_file phys="cam4" hgrid="0.9x1.25">atm/cam/dst/dst_source1x1tuned-cam4-06202012.nc</soil_erod_file>
 
+<!-- nitrogen deposition to surface models -->
+<stream_ndep_mesh_filename>share/meshes/fv0.9x1.25_141008_polemod_ESMFmesh.nc</stream_ndep_mesh_filename>
+
+<stream_ndep_data_filename >lnd/clm2/ndepdata/fndep_clm_hist_b.e21.BWHIST.f09_g17.CMIP6-historical-WACCM.ensmean_1849-2015_monthly_0.9x1.25_c180926.nc</stream_ndep_data_filename>
+<stream_ndep_data_filename sim_year="1850">lnd/clm2/ndepdata/fndep_clm_WACCM6_CMIP6piControl001_y21-50avg_1850monthly_0.95x1.25_c180802.nc</stream_ndep_data_filename>
+
+<stream_ndep_year_first >2000</stream_ndep_year_first>
+<stream_ndep_year_first sim_year="1850">1850</stream_ndep_year_first>
+<stream_ndep_year_first sim_year="1850-2015">1850</stream_ndep_year_first>
+<stream_ndep_year_first sim_year="2010">2010</stream_ndep_year_first>
+
+<stream_ndep_year_last >2000</stream_ndep_year_last>
+<stream_ndep_year_last sim_year="1850">1850</stream_ndep_year_last>
+<stream_ndep_year_last sim_year="1850-2015">2015</stream_ndep_year_last>
+<stream_ndep_year_last sim_year="2010">2010</stream_ndep_year_last>
+
+<stream_ndep_year_align >1</stream_ndep_year_align>
+<stream_ndep_year_align sim_year="1850-2015">1850</stream_ndep_year_align>
+
 <!-- Turbulent Mountain Stress -->
 <do_tms                                                     > .false. </do_tms>
 <do_tms                   waccm_phys="1"      phys="cam4"   > .true.  </do_tms>

diff --git a/bld/namelist_files/namelist_definition.xml b/bld/namelist_files/namelist_definition.xml
@@ -4375,6 +4375,23 @@ is not active.
 Default: none
 </entry>
 
+<entry id="carma_sulfnuc_method" type="char*10" category="carma"
+       group="carma_nl" valid_values="ZhaoTurco,Vehkamaki" >
+ Nucleation methods:
+  ZhaoTurco
+      Zhao, J. and Turco, R.,
+      Nucleation simulations in the wake of a jet aircraft in stratospheric flight,
+      J. Aerosol Sci., 26, 779-795, 1995,
+      https://doi.org/10.1016/0021-8502(95)00010-A
+  Vehkamaki
+     Vehkamaki, H., M. Kulmala, I. Napari, K.E.J. Lehtinen,
+     C. Timmreck, M. Noppel and A. Laaksonen, 2002,
+     An improved parameterization for sulfuric acid-water nucleation
+     rates for tropospheric and stratospheric conditions,
+     J. Geophys. Res., 107, 4622, doi:10.1029/2002jd002184
+Default: none
+</entry>
+
 <entry id="carma_conmax" type="real" category="carma"
        group="carma_nl" valid_values="" >
 A fraction that scales how tight the convergence criteria are to
@@ -7508,40 +7525,29 @@ Bubble-mediated sea-air transfer. See ocean_emis.F90 for details.
 Default: FALSE
 </entry>
 
-<entry id="ndep_list" type="char*16(2)" category="Nitrogen Deposition"
-       group="ndep_inparm" valid_values="" >
-List of nitrogen deposition fluxes to be sent from CAM to surface models.
-Default: set by build-namelist.
-</entry>
-
 <entry id="stream_ndep_year_first" type="integer" category="Nitrogen Deposition"
        group="ndep_stream_nl" valid_values="" >
-Year first to use in nitrogen deposition stream data. Set by case xml variable
-CAM_STREAM_NDEP_YEAR_FIRST
+Year first to use in nitrogen deposition stream data.
 </entry>
 
 <entry id="stream_ndep_year_last" type="integer" category="Nitrogen Deposition"
        group="ndep_stream_nl" valid_values="" >
 Year last to use in nitrogen deposition stream data.
-Set by case xml variable CAM_STREAM_NDEP_YEAR_LAST
 </entry>
 
 <entry id="stream_ndep_year_align" type="integer" category="Nitrogen Deposition"
        group="ndep_stream_nl" valid_values="" >
-Model year to align with CAM_STREAM_NDEP_YEAR_FIRST.
-Set by case xml variable CAM_STREAM_NDEP_YEAR_ALIGN
+Model year to align with stream_ndep_year_first.
 </entry>
 
 <entry id="stream_ndep_data_filename" type="char*256" input_pathname="abs" category="Nitrogen Deposition"
        group="ndep_stream_nl" valid_values="" >
-NDEP stream data filename.
-Set by case xml variable CAM_STREAM_NDEP_DATA_FILENAME.
+Nitrogen deposition stream data filename.
 </entry>
 
 <entry id="stream_ndep_mesh_filename" type="char*256" input_pathname="abs" category="Nitrogen Deposition"
        group="ndep_stream_nl" valid_values="" >
-NDEP mesh file corresponding to sream_ndep_data_filename.
-Set by case xml variable CAM_STREAM_NDEP_MESH_FILENAME.
+Grid mesh file corresponding to stream_ndep_data_filename.
 </entry>
 
 <entry id="megan_factors_file" type="char*256" input_pathname="abs" category="VOC_emissions"
@@ -8673,7 +8679,7 @@ Default: "."
 </entry>
 
 <entry id="sim_year" type="char*9" category="cam"
-       group="camexp" valid_values="1850,2000,1850-2000">
+       group="camexp" valid_values="1850,2000,2010,1850-2000,1850-2015">
 This varible is only used internally by build-namelist to determine
 appropriate defaults for climatological or transient forcing datasets.
 Default: set by build-namelist.

diff --git a/bld/namelist_files/use_cases/1850_cam_lt.xml b/bld/namelist_files/use_cases/1850_cam_lt.xml
@@ -61,4 +61,7 @@
 <csw_time_type>CYCLICAL</csw_time_type>
 <csw_cycle_yr>1850 </csw_cycle_yr>
 
+<!-- for prescribed nitrogen deposition fluxes -->
+<sim_year>1850</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/1850_cam_mt.xml b/bld/namelist_files/use_cases/1850_cam_mt.xml
@@ -56,4 +56,7 @@
 <csw_time_type>CYCLICAL</csw_time_type>
 <csw_cycle_yr>1850 </csw_cycle_yr>
 
+<!-- for prescribed nitrogen deposition fluxes -->
+<sim_year>1850</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/2000_geoschem.xml b/bld/namelist_files/use_cases/2000_geoschem.xml
@@ -36,9 +36,6 @@
 <!-- The below line is not commented out in 2000_trop_strat_vbs_cam6.xml -->
 <!-- <prescribed_strataero_cycle_yr>2000</prescribed_strataero_cycle_yr> -->
 
-<!-- The below line is not commented out in 2000_trop_strat_vbs_cam6.xml -->
-<!-- <ndep_list>'noy', 'nhx'</ndep_list> -->
-
 <!-- History Files -->
 
 <mfilt>           1,30,365,240,240,480,365,73,30  </mfilt>

diff --git a/bld/namelist_files/use_cases/2000_trop_strat_vbs_cam6.xml b/bld/namelist_files/use_cases/2000_trop_strat_vbs_cam6.xml
@@ -131,8 +131,6 @@
 <!-- HEMCO emissions -->
 <hemco_emission_year>2000</hemco_emission_year>
 
-<ndep_list>'noy', 'nhx'</ndep_list>
-
 <!-- History Files -->
 
 <mfilt>           1,30,365,240,240,480,365,73,30  </mfilt>

diff --git a/bld/namelist_files/use_cases/2010_cam6.xml b/bld/namelist_files/use_cases/2010_cam6.xml
@@ -83,4 +83,7 @@
 <flbc_type>      'CYCLICAL'                          </flbc_type>
 <flbc_cycle_yr>  2010                                </flbc_cycle_yr>
 
+<!-- sim_year -->
+<sim_year>2010</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/2010_geoschem.xml b/bld/namelist_files/use_cases/2010_geoschem.xml
@@ -34,7 +34,6 @@
 
 <!-- The below lines are not commented out in 2010_trop_strat_vbs_cam6.xml (*=many pointers) -->
 <!-- <prescribed_strataero_cycle_yr>2010</prescribed_strataero_cycle_yr> -->
-<!-- <ndep_list>'noy', 'nhx'</ndep_list>-->
 
 <!-- History Files -->
 
@@ -166,4 +165,6 @@
 'so4_a3',
 </fincl1>
 
+<sim_year>2010</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/2010_trop_strat_vbs_cam6.xml b/bld/namelist_files/use_cases/2010_trop_strat_vbs_cam6.xml
@@ -322,8 +322,6 @@
 <!-- HEMCO emissions -->
 <hemco_emission_year>2010</hemco_emission_year>
 
-<ndep_list>'noy', 'nhx'</ndep_list>
-
 <!-- History Files -->
 
 <mfilt>           1,30,365,240,240,480,365,73,30  </mfilt>

diff --git a/bld/namelist_files/use_cases/aquaplanet_cam7.xml b/bld/namelist_files/use_cases/aquaplanet_cam7.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0"?>
+
+<namelist_defaults>
+
+<!-- Spun up IC files -->
+<ncdata hgrid="ne3np4"   nlev="58" >atm/cam/inic/se/QPLT_L58_ne3pg3_c241127.nc</ncdata>
+<ncdata hgrid="ne30np4"  nlev="58" >atm/cam/inic/se/QPLT_L58_ne30pg3_c241127.nc</ncdata>
+<ncdata hgrid="ne3np4"   nlev="93" >atm/cam/inic/se/QPMT_L93_ne3pg3_c241223.nc</ncdata>
+<ncdata hgrid="ne30np4"  nlev="93" >atm/cam/inic/se/QPMT_L93_ne30pg3_c241223.nc</ncdata>
+
+<!-- make planet orbit circular              -->
+<orb_eccen                >0.</orb_eccen>
+<orb_obliq                >0.</orb_obliq>
+<orb_mvelp                >0.</orb_mvelp>
+<orb_mode>fixed_parameters</orb_mode>
+
+<!-- turn off volcanos   -->
+<prescribed_strataero_feedback> false </prescribed_strataero_feedback>
+
+<!-- APE ghg -->
+<ch4vmr                   >1.650e-6</ch4vmr>
+<n2ovmr                   >0.306e-6</n2ovmr>
+<co2vmr                   >348.0e-6</co2vmr>
+<f11vmr                   >0.0     </f11vmr>
+<f12vmr                   >0.0     </f12vmr>
+
+<!-- Solar insolation of 1365 -->
+<solar_irrad_data_file    >atm/cam/solar/ape_solar_ave_tsi_1365.nc</solar_irrad_data_file>
+
+<!-- zonally symmetric ozone file -->
+<prescribed_ozone_file model_top="lt">apeozone_cam3_5_54.nc</prescribed_ozone_file>
+<prescribed_ozone_file model_top="mt">aquaplanet_ozone_hightop_c20180412.nc</prescribed_ozone_file>
+<prescribed_ozone_datapath>atm/cam/ozone</prescribed_ozone_datapath>
+<prescribed_ozone_name    >OZONE</prescribed_ozone_name>
+<prescribed_ozone_type    >CYCLICAL</prescribed_ozone_type>
+<prescribed_ozone_cycle_yr>1990</prescribed_ozone_cycle_yr>
+
+<!-- Revised physics constants for ape experiments -->
+<sday                     >86164.10063718943</sday>
+<rearth                   >6.37100e6</rearth>
+<gravit                   >9.79764</gravit>
+<mwdry                    >28.96623324623746</mwdry>
+<mwh2o                    >18.01618112892741</mwh2o>
+<cpwv                     >1.846e3</cpwv>
+
+<use_topo_file            >.false.</use_topo_file>
+
+<micro_mg_nccons          >.true. </micro_mg_nccons>
+<micro_mg_nicons          >.true. </micro_mg_nicons>
+<ext_frc_specifier        > ""    </ext_frc_specifier>
+<srf_emis_specifier       > ""    </srf_emis_specifier>
+<tracer_cnst_specifier    > ""    </tracer_cnst_specifier>
+<prescribed_aero_file     > ""    </prescribed_aero_file>
+<prescribed_aero_specifier> ""    </prescribed_aero_specifier>
+
+<seasalt_emis_scale       > 0.0   </seasalt_emis_scale>
+
+<!-- Just make the GHGs radiatively active (no aerosols).
+     CFC concentrations are set to zero above -->
+<rad_climate> 'A:Q:H2O', 'N:O2:O2', 'N:CO2:CO2', 'N:ozone:O3',
+         'N:N2O:N2O', 'N:CH4:CH4', 'N:CFC11:CFC11', 'N:CFC12:CFC12' </rad_climate>
+
+</namelist_defaults>
diff --git a/bld/namelist_files/use_cases/hist_cam6.xml b/bld/namelist_files/use_cases/hist_cam6.xml
@@ -31,6 +31,6 @@
   <flbc_list>'CO2','CH4','N2O','CFC11eq','CFC12'</flbc_list>
 
   <!-- sim_year used for CO2 cycle namelist settings -->
-  <sim_year>1850-2000</sim_year>
+  <sim_year>1850-2015</sim_year>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/hist_cam_lt.xml b/bld/namelist_files/use_cases/hist_cam_lt.xml
@@ -42,4 +42,7 @@
 <srf_emis_type>INTERP_MISSING_MONTHS</srf_emis_type>
 <csw_time_type>SERIAL</csw_time_type>
 
+<!-- for prescribed nitrogen deposition fluxes -->
+<sim_year>1850-2015</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/hist_cam_mt.xml b/bld/namelist_files/use_cases/hist_cam_mt.xml
@@ -37,4 +37,7 @@
 <srf_emis_type>INTERP_MISSING_MONTHS</srf_emis_type>
 <csw_time_type>SERIAL</csw_time_type>
 
+<!-- for prescribed nitrogen deposition fluxes -->
+<sim_year>1850-2015</sim_year>
+
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/hist_geoschem.xml b/bld/namelist_files/use_cases/hist_geoschem.xml
@@ -31,8 +31,6 @@
 
 <prescribed_strataero_type>SERIAL</prescribed_strataero_type>
 
-<ndep_list>'noy', 'nhx'</ndep_list>
-
 <!-- History Files -->
 
 <mfilt>           1,30,365,240,240,480,365,73,30  </mfilt>
@@ -163,4 +161,6 @@
 'so4_a3',
 </fincl1>
 
+<sim_year>1850-2015</sim_year>
+
 </namelist_defaults>