diff --git a/bld/namelist_files/use_cases/1950-2010_ccmi_refc1_waccmx_ma.xml b/bld/namelist_files/use_cases/1950-2010_ccmi_refc1_waccmx_ma.xml
index 52349f423b..8d974258c2 100644
--- a/bld/namelist_files/use_cases/1950-2010_ccmi_refc1_waccmx_ma.xml
+++ b/bld/namelist_files/use_cases/1950-2010_ccmi_refc1_waccmx_ma.xml
@@ -71,9 +71,9 @@
 </megan_specifier>
 
 <!-- History -->
-<avgflag_pertape> 'A',  'I',  'I',  'A',  'A', 'A' </avgflag_pertape>
-<nhtfrq>            0,   -1,  -24,  -24, -120, -24 </nhtfrq>
-<mfilt>             1,   24,    7,    7,   10, 365 </mfilt>
+<avgflag_pertape> 'A',  'I',  'I',  'A',  'A', 'A', 'I'  </avgflag_pertape>
+<nhtfrq>            0,   -1,  -24,  -24, -120, -24, -120 </nhtfrq>
+<mfilt>             1,   24,    7,    7,   10, 365,   73 </mfilt>
 
 <!-- Monthly -->
 <fincl1>
@@ -95,7 +95,7 @@
          'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft', 'NO_Lightning',
          'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT',
          'VERT', 'VTGWORO', 'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY',
-	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I',
+	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD',
 	 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
 	 'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD',
          'KVH', 'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -127,9 +127,11 @@
 	 'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN', 'OMEGA_08_COS', 'OMEGA_08_SIN'
 </fincl5>
 <!-- Average every day -->
-<fincl7>
+<fincl6>
          'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
-</fincl7>
+</fincl6>
+<!-- Instantaneous every 5 days -->
+<fincl7>'FRONTGF'</fincl7>
 
 <fv_div24del2flag>42</fv_div24del2flag>
 
diff --git a/bld/namelist_files/use_cases/held_suarez_1994.xml b/bld/namelist_files/use_cases/held_suarez_1994.xml
index 4f6ffe13a8..274e511fca 100644
--- a/bld/namelist_files/use_cases/held_suarez_1994.xml
+++ b/bld/namelist_files/use_cases/held_suarez_1994.xml
@@ -20,7 +20,8 @@
 <!-- history output customization -->
 <nhtfrq>0,-6</nhtfrq>
 <fincl2>
- 'U:I','V:I','T:I'
+ 'U','V','T'
 </fincl2>
+<avgflag_pertape>'A','I'</avgflag_pertape>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/hist_trop_strat_nudged_cam6.xml b/bld/namelist_files/use_cases/hist_trop_strat_nudged_cam6.xml
index 0152cba659..832f815854 100644
--- a/bld/namelist_files/use_cases/hist_trop_strat_nudged_cam6.xml
+++ b/bld/namelist_files/use_cases/hist_trop_strat_nudged_cam6.xml
@@ -183,9 +183,9 @@
 
 <!-- History Files -->
 
-<mfilt           >  1,  30 </mfilt>
-<nhtfrq          >  0, -24 </nhtfrq>
-<avgflag_pertape >'A', 'A' </avgflag_pertape>
+<mfilt           >  1,  30,  30 </mfilt>
+<nhtfrq          >  0, -24, -24 </nhtfrq>
+<avgflag_pertape >'A', 'A', 'I' </avgflag_pertape>
 
 <mfilt           chem="trop_strat_mam5_ts2">  1,   1 </mfilt>
 <nhtfrq          chem="trop_strat_mam5_ts2">  0,   0 </nhtfrq>
@@ -236,7 +236,7 @@
 </fincl1>
 
 <fincl2 chem="trop_strat_mam5_vbs" hgrid="ne0np4CONUS.ne30x8">
-   'PMID', 'PDELDRY','PS','PHIS:I','Z3','T','U','V','Q','TROP_P', 'CLOUD',
+   'PMID', 'PDELDRY','PS','PHIS','Z3','T','U','V','Q','TROP_P', 'CLOUD',
    'CO','O3','O3S','NO2','NO','OH','ISOP','SO2', 'PAN', 'HNO3', 'C2H6', 'C3H8', 'CH2O', 'CH3COCH3',
    'SFISOP','SFCO','SFNO','SFNO2',
    'PM25_SRF', 'so4_a1','so4_a2','so4_a3','dst_a1','dst_a2','dst_a3','soa_a1','soa_a2',
@@ -284,5 +284,7 @@
        'WD_TERPACID2','WD_TERPACID3','WD_TERPA3PAN','WD_TERPOOHL','WD_TERPA3',
        'WD_APIN','WD_BPIN','WD_LIMON','WD_MYRC'
 </fincl2>
+<!-- Instantaneous -->
+<fincl3 chem="trop_strat_mam5_vbs" hgrid"ne0np4CONUS.ne30x8">'PHIS'</fincl3>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/sd_waccm_ma_cam4.xml b/bld/namelist_files/use_cases/sd_waccm_ma_cam4.xml
index 6fa2495972..399317c2ce 100644
--- a/bld/namelist_files/use_cases/sd_waccm_ma_cam4.xml
+++ b/bld/namelist_files/use_cases/sd_waccm_ma_cam4.xml
@@ -86,8 +86,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 
@@ -104,7 +104,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD',  'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO', 'MASS',
@@ -119,9 +119,10 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
diff --git a/bld/namelist_files/use_cases/sd_waccm_ma_cam6.xml b/bld/namelist_files/use_cases/sd_waccm_ma_cam6.xml
index 8adf1f6333..027faf2f11 100644
--- a/bld/namelist_files/use_cases/sd_waccm_ma_cam6.xml
+++ b/bld/namelist_files/use_cases/sd_waccm_ma_cam6.xml
@@ -66,8 +66,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 <fincl1>
@@ -83,7 +83,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD', 'NITROP_PD', 'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO',
@@ -101,10 +101,11 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD',
   'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/sd_waccm_sulfur.xml b/bld/namelist_files/use_cases/sd_waccm_sulfur.xml
index 25c4d622de..efde344e50 100644
--- a/bld/namelist_files/use_cases/sd_waccm_sulfur.xml
+++ b/bld/namelist_files/use_cases/sd_waccm_sulfur.xml
@@ -61,9 +61,9 @@
 
 <!-- History Files -->
 
-<mfilt>1,10,20,73,365</mfilt>
-<nhtfrq>0,-240,-240,-24,-24</nhtfrq>
-<avgflag_pertape>'A','I','I','A','A'</avgflag_pertape>
+<mfilt>1,10,20,73,365,10</mfilt>
+<nhtfrq>0,-240,-240,-24,-24,-120</nhtfrq>
+<avgflag_pertape>'A','I','B','A','A','I'</avgflag_pertape>
 
 <!-- Monthly -->
 <fincl1>
@@ -85,7 +85,7 @@
   'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN',
   'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN', 'V_24_COS', 'V_24_SIN', 'V_12_COS',
   'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS', 'PS_12_SIN', 'CLDLIQ','CLDICE','CONCLD',
-  'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
+  'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
   'TAUGWX', 'TAUGWY', 'TAUX','TAUY','SNOWHLND','SNOWHICE','ICEFRAC','FSDSC','SFNO', 'SFCO',
   'SFCH2O','CFC11STAR'
 </fincl1>
@@ -108,7 +108,7 @@
   'VTHzm', 'WTHzm', 'UVzm', 'UWzm', 'TH', 'MSKtem'
 </fincl2>
 
-<!-- Instantaneous every 10 days -->
+<!-- Average every 10 days -->
 <fincl3>
   'PS:B', 'T:B', 'Z3:B', 'U:B', 'V:B', 'CO:B', 'CO2:B',
   'H2:B', 'O:B', 'O2:B', 'O3:B', 'H:B', 'OH:B', 'HO2:B', 'H2O:B',
@@ -118,12 +118,13 @@
   'BRO:B', 'NO3:B', 'DTCORE:B', 'DTV:B', 'TTGW:B','OMEGA:B' </fincl3>
 <!-- Daily Average -->
 <fincl4>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS','FRONTGF:I', 'OMEGA'
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS','OMEGA'
 </fincl4>
 <!-- Daily Average -->
 <fincl5>
   'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
 </fincl5>
+<fincl6>'FRONTGF'<fincl6>
 
 <met_rlx_bot>50.</met_rlx_bot>
 <met_rlx_top>60.</met_rlx_top>
diff --git a/bld/namelist_files/use_cases/sd_waccm_tsmlt_cam6.xml b/bld/namelist_files/use_cases/sd_waccm_tsmlt_cam6.xml
index a95e41e322..41dba606d7 100644
--- a/bld/namelist_files/use_cases/sd_waccm_tsmlt_cam6.xml
+++ b/bld/namelist_files/use_cases/sd_waccm_tsmlt_cam6.xml
@@ -51,9 +51,9 @@
 
 <!-- History Files -->
 
-<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365   </mfilt>
-<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
-<avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'  </avgflag_pertape>
+<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365, 20   </mfilt>
+<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240,-120  </nhtfrq>
+<avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I', 'I'  </avgflag_pertape>
 
 <history_amwg>.true.</history_amwg>
 <history_aerosol>.false.</history_aerosol>
@@ -163,8 +163,9 @@
          'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO', 'NITROP_PD',
+         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO', 'NITROP_PD',
          'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/sd_waccmx_ma_cam4.xml b/bld/namelist_files/use_cases/sd_waccmx_ma_cam4.xml
index 56b964bc54..d2f9d05ff7 100644
--- a/bld/namelist_files/use_cases/sd_waccmx_ma_cam4.xml
+++ b/bld/namelist_files/use_cases/sd_waccmx_ma_cam4.xml
@@ -95,7 +95,7 @@
          'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft', 'NO_Lightning',
          'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT',
          'VERT', 'VTGWORO', 'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY',
-	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I',
+	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD',
 	 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
 	 'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD',
          'KVH', 'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -110,7 +110,7 @@
          'Z3', 'T', 'TIon', 'TElec', 'e', 'U', 'V', 'OMEGA', 'UI', 'VI', 'WI', 'ElecColDens', 'PHIM2D', 'PS',
          'PED_CONDUCTANCE', 'HALL_CONDUCTANCE', 'ED1', 'ED2', 'O', 'O2', 'H', 'NO', 'CO2', 'N', 'O1D',
 	 'Op2P', 'Op2D', 'Op', 'Np', 'N2p', 'O2p', 'NOp', 'QJOULE', 'SIGMAHAL', 'SIGMAPED', 'SolIonRate_Tot',
-	 'Z3GM', 'OpDens', 'EDens'
+	 'Z3GM', 'OpDens', 'EDens', 'FRONTGF'
 </fincl3>
 <!-- Average every day -->
 <fincl4>
diff --git a/bld/namelist_files/use_cases/sd_waccmx_ma_cam6.xml b/bld/namelist_files/use_cases/sd_waccmx_ma_cam6.xml
index 6b56c46b17..1d8c14a579 100644
--- a/bld/namelist_files/use_cases/sd_waccmx_ma_cam6.xml
+++ b/bld/namelist_files/use_cases/sd_waccmx_ma_cam6.xml
@@ -59,8 +59,8 @@
 <!-- History Streams -->
 
 <avgflag_pertape> 'A',  'I',  'I',  'A',  'A',  'A',  'A',  'I' </avgflag_pertape>
-<nhtfrq>            0,   -1,  -24,  -24, -120,  -24, -120, -240 </nhtfrq>
-<mfilt>             1,   24,    7,    7,   10,  365,   73,   30 </mfilt>
+<nhtfrq>            0,   -1,  -24,  -24, -120,  -24, -120, -120 </nhtfrq>
+<mfilt>             1,   24,    7,    7,   10,  365,   73,   73 </mfilt>
 
 <!-- Monthly -->
 <fincl1>
@@ -82,7 +82,7 @@
          'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft', 'NO_Lightning',
          'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT',
          'VERT', 'VTGWORO', 'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY',
-         'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I',
+         'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD',
          'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
          'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD',
          'KVH', 'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -114,15 +114,17 @@
          'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN', 'OMEGA_08_COS', 'OMEGA_08_SIN'
 </fincl5>
 <!-- Average every day -->
-<fincl7 dyn="fv">
+<fincl6 dyn="fv">
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
-</fincl7>
+</fincl6>
 <!-- Average every 5 days -->
-<fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+<fincl7>
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD',
   'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
-</fincl8>
+</fincl7>
+<!-- Instantaneous every 5 days -->
+<fincl8>'FRONTGF'</fincl8>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/waccm_carma_bc_2013_cam4.xml b/bld/namelist_files/use_cases/waccm_carma_bc_2013_cam4.xml
index a6e5287553..98c8700c52 100644
--- a/bld/namelist_files/use_cases/waccm_carma_bc_2013_cam4.xml
+++ b/bld/namelist_files/use_cases/waccm_carma_bc_2013_cam4.xml
@@ -71,9 +71,9 @@
 
 <!-- History Files -->
 
-<mfilt>            1,   10,   20,  7,  365 </mfilt>
-<nhtfrq>           0, -240, -240, -24, -24 </nhtfrq>
-<avgflag_pertape> 'A', 'I',  'I', 'A', 'A' </avgflag_pertape>
+<mfilt>            1,   10,   20,  7,  365, 10 </mfilt>
+<nhtfrq>           0, -240, -240, -24, -24, -120 </nhtfrq>
+<avgflag_pertape> 'A', 'I',  'B', 'A', 'A', 'I' </avgflag_pertape>
 
 <!-- Monthly -->
 <fincl1>
@@ -95,7 +95,7 @@
   'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN',
   'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN', 'V_24_COS', 'V_24_SIN', 'V_12_COS',
   'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS', 'PS_12_SIN', 'CLDLIQ','CLDICE','CONCLD',
-  'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
+  'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
   'TAUGWX', 'TAUGWY', 'TAUX','TAUY','SNOWHLND','SNOWHICE','ICEFRAC','FSDSC','SFNO', 'SFCO',
   'SFCH2O','CFC11STAR','TROPP_FD'
 </fincl1>
@@ -118,7 +118,7 @@
   'VTHzm', 'WTHzm', 'UVzm', 'UWzm', 'TH', 'MSKtem'
 </fincl2>
 
-<!-- Instantaneous every 10 days -->
+<!-- Average every 10 days -->
 <fincl3>
   'PS:B', 'T:B', 'Z3:B', 'U:B', 'V:B', 'CO:B', 'CO2:B',
   'H2:B', 'O:B', 'O2:B', 'O3:B', 'H:B', 'OH:B', 'HO2:B', 'H2O:B',
@@ -128,12 +128,13 @@
   'BRO:B', 'NO3:B', 'DTCORE:B', 'DTV:B', 'TTGW:B','OMEGA:B' </fincl3>
 <!-- Daily Average -->
 <fincl4>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS','FRONTGF:I', 'OMEGA'
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA'
 </fincl4>
 <!-- Daily Average -->
 <fincl5>
   'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
 </fincl5>
+<fincl6>'FRONTGF'</fincl6>
 
 <!-- sim_year used for CLM datasets and SSTs forcings -->
 <sim_year>1850-2000</sim_year>
diff --git a/bld/namelist_files/use_cases/waccm_ma_1850_cam6.xml b/bld/namelist_files/use_cases/waccm_ma_1850_cam6.xml
index 99eb24d6b8..283f43afe6 100644
--- a/bld/namelist_files/use_cases/waccm_ma_1850_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_ma_1850_cam6.xml
@@ -50,8 +50,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 <fincl1>
@@ -67,7 +67,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD', 'NITROP_PD', 'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO',
@@ -86,10 +86,11 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD',
   'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/waccm_ma_2000_cam6.xml b/bld/namelist_files/use_cases/waccm_ma_2000_cam6.xml
index cf84af173e..30c6d8d2fc 100644
--- a/bld/namelist_files/use_cases/waccm_ma_2000_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_ma_2000_cam6.xml
@@ -146,8 +146,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 <fincl1>
@@ -163,7 +163,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD', 'NITROP_PD', 'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO',
@@ -182,10 +182,11 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD',
   'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/waccm_ma_hist_cam4.xml b/bld/namelist_files/use_cases/waccm_ma_hist_cam4.xml
index 1177ebd155..bf7dadecd0 100644
--- a/bld/namelist_files/use_cases/waccm_ma_hist_cam4.xml
+++ b/bld/namelist_files/use_cases/waccm_ma_hist_cam4.xml
@@ -73,8 +73,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 <fincl1>
@@ -90,7 +90,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD',  'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO', 'MASS',
@@ -105,9 +105,10 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/waccm_ma_hist_cam6.xml b/bld/namelist_files/use_cases/waccm_ma_hist_cam6.xml
index 03c45f097a..16fd9cff2b 100644
--- a/bld/namelist_files/use_cases/waccm_ma_hist_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_ma_hist_cam6.xml
@@ -44,8 +44,8 @@
 
 <!-- History Streams -->
 
-<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  30  </mfilt>
-<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>             1,  30, 120, 240, 240, 480, 365,  73,  73  </mfilt>
+<nhtfrq>            0, -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape> 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'</avgflag_pertape>
 
 <fincl1>
@@ -61,7 +61,7 @@
   'DTCORE', 'T_24_COS', 'T_24_SIN', 'T_12_COS', 'T_12_SIN', 'OMEGA_24_COS', 'OMEGA_24_SIN',
   'OMEGA_12_COS', 'OMEGA_12_SIN', 'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN',
   'V_24_COS', 'V_24_SIN', 'V_12_COS', 'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS',
-  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
+  'PS_12_SIN', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW',
   'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
   'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR',
   'TROPP_FD', 'NITROP_PD', 'TROP_P', 'TROP_T', 'TROP_Z', 'SAD_AERO', 'REFF_AERO',
@@ -80,10 +80,11 @@
   'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3',
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3',
   'REFF_AERO', 'SAD_AERO', 'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD',
   'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <history_cesm_forcing>.true.</history_cesm_forcing>
 <history_scwaccm_forcing>.true. </history_scwaccm_forcing>
diff --git a/bld/namelist_files/use_cases/waccm_sc_2000_cam4.xml b/bld/namelist_files/use_cases/waccm_sc_2000_cam4.xml
index 3edfca3076..d6281a60f5 100644
--- a/bld/namelist_files/use_cases/waccm_sc_2000_cam4.xml
+++ b/bld/namelist_files/use_cases/waccm_sc_2000_cam4.xml
@@ -47,9 +47,9 @@
 
 <!-- History Files -->
 
-<mfilt>            1,   10,   20,  73, 365 </mfilt>
-<nhtfrq>           0, -240, -240, -24, -24 </nhtfrq>
-<avgflag_pertape> 'A', 'I',  'I', 'A', 'A' </avgflag_pertape>
+<mfilt>            1,   10,   20,  73, 365, 73 </mfilt>
+<nhtfrq>           0, -240, -240, -24, -24, -120 </nhtfrq>
+<avgflag_pertape> 'A', 'I',  'B', 'A', 'A', 'I' </avgflag_pertape>
 
 <!-- Monthly --> 
 <fincl1>
@@ -68,7 +68,7 @@
   'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN',
   'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN', 'V_24_COS', 'V_24_SIN', 'V_12_COS', 
   'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS', 'PS_12_SIN', 'CLDLIQ','CLDICE','CONCLD',
-  'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
+  'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
   'TAUGWX', 'TAUGWY', 'TAUX','TAUY','SNOWHLND','SNOWHICE','ICEFRAC','FSDSC',
   'WFRC_O','WFRC_O2','WFRC_O3','WFRC_NO','WFRC_H','WFRC_CO2','WFRC_QRS_TOT'
 </fincl1>
@@ -82,13 +82,15 @@
 
 <!-- Instantaneous every 10 days --> 
 <fincl3>
-  'PS:B', 'T:B', 'Z3:B', 'U:B', 'V:B',
-  'QRL_TOT:B', 'QRS_TOT:B',  'DTCORE:B', 'DTV:B', 'TTGW:B','OMEGA:B' 
+  'PS', 'T', 'Z3', 'U', 'V',
+  'QRL_TOT', 'QRS_TOT',  'DTCORE', 'DTV', 'TTGW','OMEGA' 
 </fincl3>
 <!-- Daily Average --> 
 <fincl4>
-  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS','FRONTGF:I', 'OMEGA' 
+  'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA' 
 </fincl4>
+<!-- Instantaneous every 5 days -->
+<fincl5>'FRONTGF'</fincl5>
 
 <!-- sim_year used for CLM datasets and SSTs forcings -->
 <sim_year>2000</sim_year>
diff --git a/bld/namelist_files/use_cases/waccm_tsmlt_1850_cam6.xml b/bld/namelist_files/use_cases/waccm_tsmlt_1850_cam6.xml
index dec7c58de1..88bfdf566d 100644
--- a/bld/namelist_files/use_cases/waccm_tsmlt_1850_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_tsmlt_1850_cam6.xml
@@ -49,8 +49,8 @@
 
 <!-- History Files -->
 
-<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365   </mfilt>
-<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>           1,    5,  20,  40, 120, 240, 365,  73,  73  </mfilt>
+<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'  </avgflag_pertape>
 
 <history_amwg>.true.</history_amwg>
@@ -113,9 +113,10 @@
 </fincl7>
 
 <fincl8>
-         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO', 'NITROP_PD',
+         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO', 'NITROP_PD',
          'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 <sim_year>1850</sim_year>
 
diff --git a/bld/namelist_files/use_cases/waccm_tsmlt_2000_cam6.xml b/bld/namelist_files/use_cases/waccm_tsmlt_2000_cam6.xml
index b15bcd8b8d..0b81e6ef69 100644
--- a/bld/namelist_files/use_cases/waccm_tsmlt_2000_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_tsmlt_2000_cam6.xml
@@ -246,8 +246,8 @@
 
 <!-- History Files -->
 
-<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365   </mfilt>
-<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>           1,    5,  20,  40, 120, 240, 365,  73,  73  </mfilt>
+<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'  </avgflag_pertape>
 
 <history_amwg>.true.</history_amwg>
@@ -309,8 +309,9 @@
          'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
+         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
          'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD', 'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/waccm_tsmlt_2010_cam6.xml b/bld/namelist_files/use_cases/waccm_tsmlt_2010_cam6.xml
index 82bc53d3c7..220462e9d4 100644
--- a/bld/namelist_files/use_cases/waccm_tsmlt_2010_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_tsmlt_2010_cam6.xml
@@ -146,8 +146,8 @@
 
 <!-- History Files -->
 
-<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365   </mfilt>
-<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>           1,    5,  20,  40, 120, 240, 365,  73,  73  </mfilt>
+<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'  </avgflag_pertape>
 
 <history_amwg>.true.</history_amwg>
@@ -209,8 +209,9 @@
          'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
+         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
          'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD', 'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/waccm_tsmlt_hist_cam6.xml b/bld/namelist_files/use_cases/waccm_tsmlt_hist_cam6.xml
index b12c32010a..512c71c4b6 100644
--- a/bld/namelist_files/use_cases/waccm_tsmlt_hist_cam6.xml
+++ b/bld/namelist_files/use_cases/waccm_tsmlt_hist_cam6.xml
@@ -42,8 +42,8 @@
 
 <!-- History Files -->
 
-<mfilt>           1,    5,  20,  40, 120, 240, 365,  73, 365   </mfilt>
-<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-240  </nhtfrq>
+<mfilt>           1,    5,  20,  40, 120, 240, 365,  73,  73  </mfilt>
+<nhtfrq>          0,  -24,  -6,  -3,  -1,   1, -24,-120,-120  </nhtfrq>
 <avgflag_pertape>'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'I'  </avgflag_pertape>
 
 <history_amwg>.true.</history_amwg>
@@ -105,8 +105,9 @@
          'MSKtem','PS','PSL','VTHzm','UVzm','UWzm','Uzm','Vzm','THzm','Wzm','PHIS'
 </fincl7>
 <fincl8>
-         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'FRONTGF:I', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
+         'PS', 'PSL', 'U', 'V', 'T', 'Z3', 'PHIS', 'OMEGA', 'O3', 'REFF_AERO', 'SAD_AERO',
          'so4_a1', 'so4_a2', 'so4_a3', 'AODVISstdn', 'NITROP_PD', 'dgnumwet1', 'dgnumwet2', 'dgnumwet3', 'QRS_TOT', 'CO2', 'H', 'NO', 'O'
 </fincl8>
+<fincl9>'FRONTGF'</fincl9>
 
 </namelist_defaults>
diff --git a/bld/namelist_files/use_cases/waccmx_ma_2000_cam4.xml b/bld/namelist_files/use_cases/waccmx_ma_2000_cam4.xml
index 5658d9cb1d..d3a8c90559 100644
--- a/bld/namelist_files/use_cases/waccmx_ma_2000_cam4.xml
+++ b/bld/namelist_files/use_cases/waccmx_ma_2000_cam4.xml
@@ -68,9 +68,9 @@
 
 <!-- History Files -->
 
-<mfilt>            1,   8,   1 </mfilt>
-<nhtfrq>           0,  -3, -24 </nhtfrq>
-<avgflag_pertape> 'A', 'I',  'I' </avgflag_pertape>
+<mfilt>            1,   8,   1,   73  </mfilt>
+<nhtfrq>           0,  -3, -24, -120  </nhtfrq>
+<avgflag_pertape> 'A', 'I',  'I', 'I' </avgflag_pertape>
 
 <!-- Monthly -->
 <fincl1>
@@ -92,7 +92,7 @@
   'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN',
   'U_24_COS', 'U_24_SIN', 'U_12_COS', 'U_12_SIN', 'V_24_COS', 'V_24_SIN', 'V_12_COS',
   'V_12_SIN', 'PS_24_COS', 'PS_24_SIN', 'PS_12_COS', 'PS_12_SIN', 'CLDLIQ','CLDICE','CONCLD',
-  'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
+  'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS','TAUE','TAUW','TAUN','TAUS',
   'TAUGWX', 'TAUGWY', 'TAUX','TAUY','SNOWHLND','SNOWHICE','ICEFRAC','FSDSC','SFNO', 'SFCO',
   'SFCH2O','CFC11STAR','TROPP_FD', 'Op', 'O2p', 'Np', 'NOp', 'N2p', 'e'
 </fincl1>
@@ -136,11 +136,13 @@
   'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'T', 'TREFHT', 'TTGW', 'U',
   'UTGWORO', 'UTGWSPEC', 'V', 'VERT', 'VTGWORO', 'VTGWSPEC', 'Z3', 'O2_1S', 'O2_1D', 'NOX', 'NOY',
   'CLOX', 'CLOY', 'BROX', 'BROY', 'TCLY', 'TOTH', 'QJOULE', 'UIONTEND', 'VIONTEND',
-  'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE',
+  'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BUTGWSPEC', 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE',
   'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY', 'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC',
   'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD', 'Op', 'O2p', 'Np', 'NOp',
   'N2p', 'e', 'UI', 'VI', 'WI'
 </fincl3>
+<!-- Instantaneous every 5 days -->
+<fincl4>'FRONTGF'</fincl4>
 
 <!-- sim_year used for CLM datasets and SSTs forcings -->
 <sim_year>2000</sim_year>
diff --git a/bld/namelist_files/use_cases/waccmx_ma_2000_cam6.xml b/bld/namelist_files/use_cases/waccmx_ma_2000_cam6.xml
index 7052ac83bb..612f3e21bf 100644
--- a/bld/namelist_files/use_cases/waccmx_ma_2000_cam6.xml
+++ b/bld/namelist_files/use_cases/waccmx_ma_2000_cam6.xml
@@ -34,13 +34,13 @@
 <srf_emis_cycle_yr>2000</srf_emis_cycle_yr>
 
 <!-- History -->
-<avgflag_pertape     >'A',  'I',  'I',  'A',  'A',  'A', 'A' </avgflag_pertape>
+<avgflag_pertape     >'A',  'I',  'I',  'A',  'A',  'A', 'A', 'I'  </avgflag_pertape>
 
-<nhtfrq                >0,   -3,  -24,  -24, -120,  -24, -24 </nhtfrq>
-<mfilt                 >1,    8,    1,    1,    2,    1, 365 </mfilt>
+<nhtfrq                >0,   -3,  -24,  -24, -120,  -24, -24, -120 </nhtfrq>
+<mfilt                 >1,    8,    1,    1,    2,    1, 365,   73 </mfilt>
 
-<nhtfrq hgrid="1.9x2.5">0,   -1,  -24,  -24, -120,  -24, -24 </nhtfrq>
-<mfilt  hgrid="1.9x2.5">1,   24,    7,    7,   10,    1, 365 </mfilt>
+<nhtfrq hgrid="1.9x2.5">0,   -1,  -24,  -24, -120,  -24, -24, -120 </nhtfrq>
+<mfilt  hgrid="1.9x2.5">1,   24,    7,    7,   10,    1, 365,   73 </mfilt>
 
 <!-- Monthly -->
 <fincl1>
@@ -63,7 +63,7 @@
          'SOLIN', 'SWCF', 'QCP', 'QTHERMAL', 'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft',
          'NO_Lightning', 'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT', 'VERT', 'VTGWORO',
          'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY', 'TCLY',
-         'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BTAUE', 'BTAUW',
+         'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BTAUE', 'BTAUW',
          'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
          'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD', 'KVH',
          'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -98,6 +98,8 @@
 <fincl7>
          'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
 </fincl7>
+<!-- Instantaneous every 5 days -->
+<fincl8>'FRONTGF'</fincl8>
 
 <fv_div24del2flag>42</fv_div24del2flag>
 
diff --git a/bld/namelist_files/use_cases/waccmx_ma_hist_cam6.xml b/bld/namelist_files/use_cases/waccmx_ma_hist_cam6.xml
index c928b43f28..48cad55198 100644
--- a/bld/namelist_files/use_cases/waccmx_ma_hist_cam6.xml
+++ b/bld/namelist_files/use_cases/waccmx_ma_hist_cam6.xml
@@ -32,10 +32,10 @@
 <srf_emis_type>INTERP_MISSING_MONTHS</srf_emis_type>
 
 <!-- History -->
-<avgflag_pertape     >'A',  'I',  'I',  'A',  'A',  'A', 'A' </avgflag_pertape>
+<avgflag_pertape     >'A',  'I',  'I',  'A',  'A',  'A', 'A', 'I'  </avgflag_pertape>
 
-<nhtfrq                >0,   -3,  -24,  -24, -120,  -24, -24 </nhtfrq>
-<mfilt                 >1,    8,    1,    1,    2,    1, 365 </mfilt>
+<nhtfrq                >0,   -3,  -24,  -24, -120,  -24, -24, -120 </nhtfrq>
+<mfilt                 >1,    8,    1,    1,    2,    1, 365,   10 </mfilt>
 
 <nhtfrq hgrid="1.9x2.5">0,   -1,  -24,  -24, -120,  -24, -24 </nhtfrq>
 <mfilt  hgrid="1.9x2.5">1,   24,    7,    7,   10,    1, 365 </mfilt>
@@ -61,7 +61,7 @@
          'SOLIN', 'SWCF', 'QCP', 'QTHERMAL', 'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft',
          'NO_Lightning', 'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT', 'VERT', 'VTGWORO',
          'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY', 'TCLY',
-         'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I', 'BTAUE', 'BTAUW',
+         'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'BTAUE', 'BTAUW',
          'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
          'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD', 'KVH',
          'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -96,6 +96,7 @@
 <fincl7>
          'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
 </fincl7>
+<fincl8>'FRONTGF'</fincl8>
 
 <fv_div24del2flag>42</fv_div24del2flag>
 
diff --git a/bld/namelist_files/use_cases/waccmxie_ma_2000_cam4.xml b/bld/namelist_files/use_cases/waccmxie_ma_2000_cam4.xml
index a3f8c937ec..0c23df9a46 100644
--- a/bld/namelist_files/use_cases/waccmxie_ma_2000_cam4.xml
+++ b/bld/namelist_files/use_cases/waccmxie_ma_2000_cam4.xml
@@ -90,9 +90,9 @@
 </megan_specifier>
 
 <!-- History -->
-<avgflag_pertape> 'A',  'I',  'I',  'A',  'A', 'A' </avgflag_pertape>
-<nhtfrq>            0,   -1,  -24,  -24, -120, -24 </nhtfrq>
-<mfilt>             1,   24,    7,    7,   10, 365 </mfilt>
+<avgflag_pertape> 'A',  'I',  'I',  'A',  'A', 'A',  'I'  </avgflag_pertape>
+<nhtfrq>            0,   -1,  -24,  -24, -120, -24, -120 </nhtfrq>
+<mfilt>             1,   24,    7,    7,   10, 365,   73  </mfilt>
 
 <!-- Monthly -->
 <fincl1>
@@ -114,7 +114,7 @@
          'QRL_TOT', 'PSL', 'HNO3_STS', 'HNO3_NAT', 'HNO3_GAS', 'NO_Aircraft', 'NO_Lightning',
          'QRS_AUR', 'QRS_CO2NIR', 'QRS_EUV', 'SAD_ICE', 'SAD_LNAT', 'SAD_SULFC', 'TREFHT',
          'VERT', 'VTGWORO', 'VTGWSPEC', 'O2_1S', 'O2_1D', 'NOX', 'NOY', 'CLOX', 'CLOY', 'BROX', 'BROY',
-	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD', 'FRONTGF:I',
+	 'TCLY', 'TOTH', 'UIONTEND', 'VIONTEND', 'DTCORE', 'CLDLIQ', 'CLDICE', 'CONCLD',
 	 'BTAUE', 'BTAUW', 'BTAUN', 'BTAUS', 'TAUE', 'TAUW', 'TAUN', 'TAUS', 'TAUGWX', 'TAUGWY', 'TAUX', 'TAUY',
 	 'SNOWHLND', 'SNOWHICE', 'ICEFRAC', 'FSDSC', 'SFNO', 'SFCO', 'SFCH2O', 'CFC11STAR', 'TROPP_FD',
          'KVH', 'KVM', 'KVT', 'Qbkgndtot', 'Z3GM', 'OpDens', 'EDens'
@@ -146,9 +146,11 @@
 	 'OMEGA_24_COS', 'OMEGA_24_SIN', 'OMEGA_12_COS', 'OMEGA_12_SIN', 'OMEGA_08_COS', 'OMEGA_08_SIN'
 </fincl5>
 <!-- Average every day -->
-<fincl7 dyn="fv">
+<fincl6 dyn="fv">
          'MSKtem', 'PS', 'PSL', 'VTHzm', 'UVzm', 'UWzm', 'Uzm', 'Vzm', 'THzm','Wzm', 'PHIS'
-</fincl7>
+</fincl6>
+<!-- Instantaneous every five days -->
+<fincl7>'FRONTGF'</fincl7>
 
 <fv_div24del2flag dyn="fv">42</fv_div24del2flag>
 
diff --git a/cime_config/testdefs/testmods_dirs/cam/co2rmp/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/co2rmp/user_nl_cam
index 18f6cf7791..660af17e0b 100644
--- a/cime_config/testdefs/testmods_dirs/cam/co2rmp/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/co2rmp/user_nl_cam
@@ -3,11 +3,12 @@ ndens=1,1,1,1,1,1
 nhtfrq=3,3,3,3,3,3
 inithist='ENDOFRUN'
 fexcl1='UU'
-fincl1='T:I','PS:I'
-fincl2='T:A','PS:A'
+fincl1='T','PS'
+fincl2='T','PS'
 fincl3='T:X','PS:X'
 fincl4='T:M','PS:M'
 fincl5='PS','U200'
 fincl6='PS','TREFHTMX','TREFHTMN'
+avgflag_pertape='I','A','A','A','I','I'
 ramp_co2_start_ymd=20000915
 scenario_ghg='RAMP_CO2_ONLY'
diff --git a/cime_config/testdefs/testmods_dirs/cam/co2rmp_1850/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/co2rmp_1850/user_nl_cam
index 9695e5f414..23fcd607bd 100644
--- a/cime_config/testdefs/testmods_dirs/cam/co2rmp_1850/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/co2rmp_1850/user_nl_cam
@@ -3,12 +3,13 @@ ndens=1,1,1,1,1,1
 nhtfrq=3,3,3,3,3,3
 inithist='ENDOFRUN'
 fexcl1='UU'
-fincl1='T:I','PS:I'
-fincl2='T:A','PS:A'
+fincl1='T','PS'
+fincl2='T','PS'
 fincl3='T:X','PS:X'
 fincl4='T:M','PS:M'
 fincl5='PS','U200'
 fincl6='PS','TREFHTMX','TREFHTMN'
+avgflag_pertape='I','A','A','A','I','I'
 inithist='DAILY'
 ramp_co2_start_ymd=20000915
 scenario_ghg='RAMP_CO2_ONLY'
diff --git a/cime_config/testdefs/testmods_dirs/cam/co2rmp_usecase/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/co2rmp_usecase/user_nl_cam
index 18f6cf7791..660af17e0b 100644
--- a/cime_config/testdefs/testmods_dirs/cam/co2rmp_usecase/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/co2rmp_usecase/user_nl_cam
@@ -3,11 +3,12 @@ ndens=1,1,1,1,1,1
 nhtfrq=3,3,3,3,3,3
 inithist='ENDOFRUN'
 fexcl1='UU'
-fincl1='T:I','PS:I'
-fincl2='T:A','PS:A'
+fincl1='T','PS'
+fincl2='T','PS'
 fincl3='T:X','PS:X'
 fincl4='T:M','PS:M'
 fincl5='PS','U200'
 fincl6='PS','TREFHTMX','TREFHTMN'
+avgflag_pertape='I','A','A','A','I','I'
 ramp_co2_start_ymd=20000915
 scenario_ghg='RAMP_CO2_ONLY'
diff --git a/cime_config/testdefs/testmods_dirs/cam/dartcambigens/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/dartcambigens/user_nl_cam
index 008f853d1c..add5e93d7f 100644
--- a/cime_config/testdefs/testmods_dirs/cam/dartcambigens/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/dartcambigens/user_nl_cam
@@ -1,4 +1,5 @@
 inithist     = 'ENDOFRUN'
 empty_htapes = .true.
-fincl1       = 'PHIS:I'
+fincl1       = 'PHIS'
+avgflag_pertape = 'I'
 nhtfrq       = -1
diff --git a/cime_config/testdefs/testmods_dirs/cam/ghgrmp_e8/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/ghgrmp_e8/user_nl_cam
index a7ccd4decc..c2b625c6b7 100644
--- a/cime_config/testdefs/testmods_dirs/cam/ghgrmp_e8/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/ghgrmp_e8/user_nl_cam
@@ -10,8 +10,8 @@ FINCL2LONLAT = '225e:247e_31n:53n'  , '112e:135e_16s:9s'    , '157e:179e_11.5s:1
                '260.0e_30.0n'       , '260.0w_30.0s'        , '50w_90.0n'            ,
                '60.0e_70.0n'        , '90.0w_80.0s'         , '8e:32e_50n:54n'       ,
                '165e:221e_20s:20n'
-FINCL2       = 'T:I       ','U:I       ','V:I       ','Q:I       ','DTCOND:I  ',
-               'PS:I      ','PHIS:I    ','FU        ','FV        ','RELHUM:I  ',
+FINCL2       = 'T       ','U       ','V       ','Q         ','DTCOND    ',
+               'PS      ','PHIS    ','FU      ','FV        ','RELHUM    ',
 FINCL3LONLAT = '225e:247e_31n:53n'  , '112e:135e_16s:9s'    , '157e:179e_11.5s:11.5n',
                '290e:304e_21s:9s'   , '240e:256e_51n:58n'   , '160e:211e_30s:30n'    ,
                '0e_89s'             , '180e_0s'             , '0w_0n'                ,
@@ -19,12 +19,12 @@ FINCL3LONLAT = '225e:247e_31n:53n'  , '112e:135e_16s:9s'    , '157e:179e_11.5s:1
                '260.0e_30.0n'       , '260.0w_30.0s'        , '50w_90.0n'            ,
                '60.0e_70.0n'        , '90.0w_80.0s'         , '8e:32e_50n:54n'       ,
                '165e:221e_20s:20n'
-FINCL3       = 'T:I       ','U:I       ','V:I       ','Q:I       ','DTCOND:I  ',
-               'PS:I      ','PHIS:I    ','FU        ','FV        ','RELHUM:I  ',
+FINCL3       = 'T       ','U       ','V       ','Q       ','DTCOND  ',
+               'PS      ','PHIS    ','FU      ','FV      ','RELHUM  ',
 FINCL4LONLAT = '67.0e_50.0n'            , '67.0w_50.0s'        
-FINCL4       = 'T:I       ','U:I       ','V:I       ','Q:I       ','DTCOND:I  ',
-               'PS:I      ','PHIS:I    ','FU        ','FV        ','RELHUM:I  ',
-
+FINCL4       = 'T       ','U       ','V       ','Q       ','DTCOND  ',
+               'PS      ','PHIS    ','FU      ','FV      ','RELHUM  ',
+avgflag_pertape = 'A','I','I','I'
 collect_column_output = .false.,.false.,.true.,.true.
 
 eul_divdampn=1.
diff --git a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_cospsathist/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_cospsathist/user_nl_cam
index 801587cedd..40f9e14f3d 100644
--- a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_cospsathist/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_cospsathist/user_nl_cam
@@ -1,13 +1,15 @@
- ndens=1,1,1,1,1,1
- nhtfrq=3,3,3,3,-2,3
- mfilt=1,1,1,1,1,1
+ ndens=1,1,1,1,1,1,1,1
+ nhtfrq=3,3,3,3,3,3,-2,3
+ mfilt=1,1,1,1,1,1,1,1
  sathist_track_infile='$DIN_LOC_ROOT/atm/cam/sat/satellite_profilelist_20020125_20101030_c110204_noleap.nc'
  sathist_fincl = 'Q','T','PS','U','V','FV'
- fincl3 = 'Q','T','PS','FV','UWzm:I'
- fincl4 = 'Q','T','PS','FV','UWzm:I'
- fincl5 = 'Q','T','U','V','PS','FV','UWzm','AEROD_v','TOT_CLD_VISTAU'
- lcltod_start = 0,0, 7200,82800,0
- lcltod_stop  = 0,0,10800,7200,0
- avgflag_pertape = 'I',' ','L','L','S'
+ fincl3 = 'Q','T','PS','FV'
+ fincl4 = 'UWzm'
+ fincl5 = 'Q','T','PS','FV'
+ fincl6 = 'UWzm'
+ fincl7 = 'Q','T','U','V','PS','FV','UWzm','AEROD_v','TOT_CLD_VISTAU'
+ lcltod_start = 0,0, 7200, 7200,82800,82800,0
+ lcltod_stop  = 0,0,10800,10800, 7200, 7200,0
+ avgflag_pertape = 'I',' ','L','I','L','I','S'
  do_circulation_diags=.true.
  fexcl1='CFAD_DBZE94_CS','CLDTOT_CALCS','CLD_CAL_NOTCS'
diff --git a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_diags/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_diags/user_nl_cam
index 63b92fe23d..b58e28f8ff 100644
--- a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_diags/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_diags/user_nl_cam
@@ -12,5 +12,6 @@ history_waccmx=.true.
 history_chemistry=.true.
 history_carma=.true.
 history_clubb=.true.
-fincl2='Uzm:I','Vzm:I','Wzm:I','THzm:I'
+fincl2='Uzm','Vzm','Wzm','THzm'
+avgflag_pertape='A','I'
 do_circulation_diags=.true.
diff --git a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_sathist/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_sathist/user_nl_cam
index 5ade04dbb2..6a446ed054 100644
--- a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_sathist/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_sathist/user_nl_cam
@@ -1,12 +1,14 @@
- ndens=1,1,1,1,1,1
- nhtfrq=3,3,3,3,-2,3
- mfilt=1,1,1,1,1,1
+ ndens=1,1,1,1,1,1,1,1
+ nhtfrq=3,3,3,3,3,3,-2,3
+ mfilt=1,1,1,1,1,1,1,1
  sathist_track_infile='$DIN_LOC_ROOT/atm/cam/sat/satellite_profilelist_20020125_20101030_c110204_noleap.nc'
  sathist_fincl = 'Q','T','PS','U','V','FV'
- fincl3 = 'Q','T','PS','FV','UWzm:I'
- fincl4 = 'Q','T','PS','FV','UWzm:I'
- fincl5 = 'Q','T','U','V','PS','FV','UWzm','AEROD_v','TOT_CLD_VISTAU'
- lcltod_start = 0,0, 7200,82800,0
- lcltod_stop  = 0,0,10800,7200,0
- avgflag_pertape = 'I',' ','L','L','S'
+ fincl3 = 'Q','T','PS','FV'
+ fincl4 = 'UWzm'
+ fincl5 = 'Q','T','PS','FV'
+ fincl6 = 'UWzm'
+ fincl7 = 'Q','T','U','V','PS','FV','UWzm','AEROD_v','TOT_CLD_VISTAU'
+ lcltod_start = 0,0, 7200, 7200,82800,82800,0
+ lcltod_stop  = 0,0,10800,10800, 7200, 7200,0
+ avgflag_pertape = 'I',' ','L','I','L','I','S'
  do_circulation_diags=.true.
diff --git a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_ttrac/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_ttrac/user_nl_cam
index 20883325af..6341903bc0 100644
--- a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_ttrac/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_ttrac/user_nl_cam
@@ -5,4 +5,5 @@ inithist='ENDOFRUN'
 interpolate_output=.false.,.true.
 interpolate_nlat=0,30
 interpolate_nlon=0,60
-fincl2='Q:I','T:I','U:I','V:I','Q_gll:I','T_gll:I','U_gll:I','V_gll:I'
+fincl2='Q','T','U','V','Q_gll','T_gll','U_gll','V_gll'
+avgflag_pertape='A','A'
diff --git a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_usecase/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_usecase/user_nl_cam
index 0fd89f084b..418592a843 100644
--- a/cime_config/testdefs/testmods_dirs/cam/outfrq3s_usecase/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/outfrq3s_usecase/user_nl_cam
@@ -3,4 +3,5 @@ ndens=1,1,1,1,1,1
 nhtfrq=3,3,3,3,3,3
 inithist='ENDOFRUN'
 pbuf_global_allocate=.false.
-fincl2='U:I','V:I','T:I','TTEND_TOT:I','DTCORE:I'
+fincl2='U','V','T','TTEND_TOT','DTCORE'
+avgflag_pertape='A','I'
diff --git a/cime_config/testdefs/testmods_dirs/cam/terminator/user_nl_cam b/cime_config/testdefs/testmods_dirs/cam/terminator/user_nl_cam
index 83efb36c48..e6e973a573 100644
--- a/cime_config/testdefs/testmods_dirs/cam/terminator/user_nl_cam
+++ b/cime_config/testdefs/testmods_dirs/cam/terminator/user_nl_cam
@@ -2,5 +2,6 @@ mfilt=1,1,1,1,1,1
 ndens=1,1,1,1,1,1
 nhtfrq=3,3,3,3,3,3
 inithist='ENDOFRUN'
-fincl2='U:I','V:I','T:I','TTEND_TOT:I','CL:I','CL2:I'
+fincl2='U','V','T','TTEND_TOT','CL','CL2'
+avgflag_pertape='A','I'
 
diff --git a/src/control/cam_history.F90 b/src/control/cam_history.F90
index 51c357e68b..ce909e9d96 100644
--- a/src/control/cam_history.F90
+++ b/src/control/cam_history.F90
@@ -2447,13 +2447,33 @@ end function get_entry_by_name
 
   !#######################################################################
 
-  subroutine AvgflagToString(avgflag, time_op)
+  subroutine AvgflagToString(avgflag, time_op, instantaneous_valid, average_valid)
     ! Dummy arguments
     character(len=1),           intent(in)  :: avgflag ! averaging flag
     character(len=max_chars),   intent(out) :: time_op ! time op (e.g. max)
+    logical,         optional,  intent(in)  :: instantaneous_valid ! flag for whether it's ok to have instantaneous fields on the tape
+    logical,         optional,  intent(in)  :: average_valid ! flag for whether it's ok to have average fields on the tape
 
-    ! Local variable
+    ! Local variables
     character(len=*), parameter             :: subname = 'AvgflagToString'
+    logical                                 :: local_inst_valid
+    logical                                 :: local_avg_valid
+
+    if (present(instantaneous_valid)) then
+       local_inst_valid = instantaneous_valid
+    else
+       local_inst_valid = .true.
+    end if
+
+    if (present(average_valid)) then
+       local_avg_valid = average_valid
+    else
+       local_avg_valid = .true.
+    end if
+
+    if (avgflag /= 'I' .and. .not. local_avg_valid) then
+       call endrun(subname//': cannot have average fields in instantaneous history file')
+    end if
 
     select case (avgflag)
     case ('A')
@@ -2463,7 +2483,11 @@ subroutine AvgflagToString(avgflag, time_op)
     case ('N')
       time_op(:) = 'mean_over_nsteps'
     case ('I')
-      time_op(:) = ' '
+      if (local_inst_valid) then
+         time_op(:) = ' '
+      else
+         call endrun(subname//': cannot have instantaneous fields in average history file')
+      end if
     case ('X')
       time_op(:) = 'maximum'
     case ('M')
@@ -2981,8 +3005,11 @@ subroutine inifld (t, listentry, avgflag, prec_wrt)
     ! Local workspace
     !
     integer :: n                  ! field index on defined tape
+    logical :: inst_valid         ! instananeous fields allowed on history tape
+    logical :: avg_valid          ! average fields allowed on history tape
 
-
+    inst_valid = .true.
+    avg_valid = .true.
     !
     ! Ensure that it is not to late to add a field to the history tape
     !
@@ -3032,7 +3059,18 @@ subroutine inifld (t, listentry, avgflag, prec_wrt)
       tape(t)%hlist(n)%time_op = listentry%time_op(t)
     else
       tape(t)%hlist(n)%avgflag = avgflag
-      call AvgflagToString(avgflag, tape(t)%hlist(n)%time_op)
+      ! Check for tape / field avgflag mismatch
+      if (avgflag_pertape(t) == 'I' .or. avgflag_pertape(t) == ' ') then ! tape is instantaneous
+         if (avgflag /= 'I') then ! field is average
+            avg_valid = .false. ! cannot have average field on instantaneous tape
+         end if
+      else ! tape is average
+         if (avgflag == 'I') then ! field is instantaneous
+            inst_valid = .false. ! cannot have instantaneous field on average tape
+         end if
+      end if
+
+      call AvgflagToString(avgflag, tape(t)%hlist(n)%time_op, instantaneous_valid=inst_valid, average_valid=avg_valid)
     end if
 
     ! Some things can't be done with zonal fields
@@ -3932,7 +3970,7 @@ subroutine h_inquire (t)
       ierr=pio_inq_varid (tape(t)%File,'nscur   ',    tape(t)%nscurid)
       ierr=pio_inq_varid (tape(t)%File,'nsteph  ',    tape(t)%nstephid)
 
-      ierr=pio_inq_varid (tape(t)%File,'time_bnds',   tape(t)%tbndid)
+      ierr=pio_inq_varid (tape(t)%File,'time_bounds', tape(t)%tbndid)
       ierr=pio_inq_varid (tape(t)%File,'date_written',tape(t)%date_writtenid)
       ierr=pio_inq_varid (tape(t)%File,'time_written',tape(t)%time_writtenid)
 #if ( defined BFB_CAM_SCAM_IOP )
@@ -4049,6 +4087,11 @@ subroutine add_default (name, tindex, flag)
     !
     integer :: t            ! file index
     type(master_entry), pointer :: listentry
+    logical                     :: inst_valid ! instantaneous fields allowed on history tape
+    logical                     :: avg_valid ! average fields allowed on history tape
+
+    inst_valid = .true.
+    avg_valid = .true.
 
     if (htapes_defined) then
       call endrun ('ADD_DEFAULT: Attempt to add hist default '//trim(name)//' after history files set')
@@ -4084,7 +4127,17 @@ subroutine add_default (name, tindex, flag)
     listentry%actflag(t) = .true.
     if (flag /= ' ') then
       listentry%avgflag(t) = flag
-      call AvgflagToString(flag, listentry%time_op(t))
+      ! Check for tape / field avgflag mismatch
+      if (avgflag_pertape(t) == 'I' .or. avgflag_pertape(t) == ' ') then ! tape is instantaneous
+         if (flag /= 'I') then ! field is average
+            avg_valid = .false. ! cannot have average field on inst. tape
+         end if
+      else ! tape is average
+         if (flag == 'I') then ! field is instantaneous
+            inst_valid = .false. ! cannot have inst. field on average tape
+         end if
+      end if
+      call AvgflagToString(flag, listentry%time_op(t), instantaneous_valid=inst_valid, average_valid=avg_valid)
     end if
 
     return
@@ -4174,6 +4227,8 @@ subroutine h_define (t, restart)
     character(len=max_chars) :: cell_methods ! For cell_methods attribute
     character(len=16)        :: time_per_freq
     character(len=128)       :: errormsg
+    logical                  :: inst_valid ! instantaneous fields allowed on tape
+    logical                  :: avg_valid ! average fields allowed on tape
 
     integer :: ret                        ! function return value
 
@@ -4213,6 +4268,9 @@ subroutine h_define (t, restart)
     character(len=32)                :: cam_take_snapshot_before
     character(len=32)                :: cam_take_snapshot_after
 
+    inst_valid = .true.
+    avg_valid = .true.
+
     call phys_getopts(cam_take_snapshot_before_out= cam_take_snapshot_before, &
                       cam_take_snapshot_after_out = cam_take_snapshot_after,  &
                       cam_snapshot_before_num_out = cam_snapshot_before_num,  &
@@ -4374,9 +4432,9 @@ subroutine h_define (t, restart)
 
     if(.not. is_satfile(t)) then
 
-      ierr=pio_put_att (tape(t)%File, tape(t)%timeid, 'bounds', 'time_bnds')
+      ierr=pio_put_att (tape(t)%File, tape(t)%timeid, 'bounds', 'time_bounds')
 
-      ierr=pio_def_var (tape(t)%File,'time_bnds',pio_double,(/bnddim,timdim/),tape(t)%tbndid)
+      ierr=pio_def_var (tape(t)%File,'time_bounds',pio_double,(/bnddim,timdim/),tape(t)%tbndid)
       ierr=pio_put_att (tape(t)%File, tape(t)%tbndid, 'long_name', 'time interval endpoints')
       !
       ! Character
@@ -4539,6 +4597,17 @@ subroutine h_define (t, restart)
     do f = 1, nflds(t)
 
       !! Collect some field properties
+      ! Check for tape / field avgflag mismatch
+      if (avgflag_pertape(t) == 'I' .or. avgflag_pertape(t) == ' ') then ! tape is instantaneous
+         if (tape(t)%hlist(f)%avgflag /= 'I') then ! field is average
+            avg_valid = .false. ! cannot have average field on inst. tape
+         end if
+      else ! tape is average
+         if (tape(t)%hlist(f)%avgflag == 'I') then ! field is instantaneous
+            inst_valid = .false. ! cannot have inst. field on average tape
+         end if
+      end if
+!      call AvgflagToString(tape(t)%hlist(f)%avgflag, tape(t)%hlist(f)%time_op, instantaneous_valid=inst_valid, average_valid=avg_valid)
       call AvgflagToString(tape(t)%hlist(f)%avgflag, tape(t)%hlist(f)%time_op)
       if ((tape(t)%hlist(f)%hwrt_prec == 8) .or. restart) then
         ncreal = pio_double
@@ -4706,15 +4775,16 @@ subroutine h_define (t, restart)
         ! Time cell methods is after field method because time averaging is
         ! applied later (just before output) than field method which is applied
         ! before outfld call.
-        str = tape(t)%hlist(f)%time_op
-        select case (str)
-        case ('mean', 'maximum', 'minimum', 'standard_deviation')
-          if (len_trim(cell_methods) > 0) then
-            cell_methods = trim(cell_methods)//' '//'time: '//str
-          else
-            cell_methods = trim(cell_methods)//'time: '//str
-          end if
-        end select
+        if (tape(t)%hlist(f)%avgflag == 'I') then
+           str = 'instantaneous'
+        else
+           str = tape(t)%hlist(f)%time_op
+        end if
+        if (len_trim(cell_methods) > 0) then
+           cell_methods = trim(cell_methods)//' '//'time: '//str
+        else
+           cell_methods = trim(cell_methods)//'time: '//str
+        end if
         if (len_trim(cell_methods) > 0) then
           ierr = pio_put_att(tape(t)%File, varid, 'cell_methods', trim(cell_methods))
           call cam_pio_handle_error(ierr,                                     &
@@ -5556,7 +5626,6 @@ subroutine wshist (rgnht_in)
 #endif
           ierr = pio_put_var (tape(t)%File, tape(t)%nstephid,(/start/),(/count1/),(/nstep/))
           time = ndcur + nscur/86400._r8
-          ierr=pio_put_var (tape(t)%File, tape(t)%timeid, (/start/),(/count1/),(/time/))
 
           startc(1) = 1
           startc(2) = start
@@ -5568,6 +5637,13 @@ subroutine wshist (rgnht_in)
             tdata(1) = beg_time(t)
             tdata(2) = time
           end if
+          if (avgflag_pertape(t) /= 'I') then
+             ! average tape - time is midpoint of time_bounds
+             ierr=pio_put_var (tape(t)%File, tape(t)%timeid, (/start/),(/count1/),(/(tdata(1) + tdata(2)) / 2._r8/))
+          else
+             ! instantaneous tape - time is current time
+             ierr=pio_put_var (tape(t)%File, tape(t)%timeid, (/start/),(/count1/),(/time/))
+          end if
           ierr=pio_put_var (tape(t)%File, tape(t)%tbndid, startc, countc, tdata)
           if(.not.restart) beg_time(t) = time  ! update beginning time of next interval
           startc(1) = 1
diff --git a/src/control/cam_history_support.F90 b/src/control/cam_history_support.F90
index 495ce7b519..d154b66d87 100644
--- a/src/control/cam_history_support.F90
+++ b/src/control/cam_history_support.F90
@@ -220,7 +220,7 @@ module cam_history_support
 #endif
     type(var_desc_t) :: nstephid         ! var id for current timestep
     type(var_desc_t) :: timeid           ! var id for time
-    type(var_desc_t) :: tbndid           ! var id for time_bnds
+    type(var_desc_t) :: tbndid           ! var id for time_bounds
     type(var_desc_t) :: date_writtenid   ! var id for date time sample written
     type(var_desc_t) :: time_writtenid   ! var id for time time sample written
     type(var_desc_t) :: f107id           ! var id for f107