diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69972354..ecee520c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.0.5] - 2021-03-14
+
+### Added
+
+- Added AMIP.20C ExtData configs to allow AMIP GOCART runs to work before Y2000 (during the transition from HFED to QFED)
+  - Note 1: This is not a *new* scenario but rather a stopgap until Extdata is updated to allow time ranges to be specified. 
+  - Note 2: Temporarily, this will allow runs before Y2000 using magic-data scripting in `gcm_run.j` (a la MERRA2 in GOCART1).
+
 ### Fixed
 
 - Fix for bad entries in `DU2G_GridComp_ExtData.rc` (see Issue #109)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f083999d..adb4e79e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_policy (SET CMP0054 NEW)
 
 project (
         GOCART
-        VERSION 2.0.4
+        VERSION 2.0.5
         LANGUAGES Fortran CXX C)  # Note - CXX is required for ESMF
 
 if ("${PROJECT_SOURCE_DIR}" STREQUAL "${PROJECT_BINARY_DIR}")
diff --git a/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_GridComp_ExtData.rc b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_GridComp_ExtData.rc
new file mode 100644
index 00000000..6470a20c
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_GridComp_ExtData.rc
@@ -0,0 +1,116 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+
+#========== Data Instance ==========================================================
+
+climBCphobic   'kg kg-1'   Y        N               0              0.0      1.0     BCphobic   ExtData/chemistry/MERRAero/v0.0.0/L72/dR_MERRA-AA-r2.aer_Nv.2003_2014.2008clm.nc4
+climBCphilic   'kg kg-1'   Y        N               0              0.0      1.0     BCphilic   ExtData/chemistry/MERRAero/v0.0.0/L72/dR_MERRA-AA-r2.aer_Nv.2003_2014.2008clm.nc4
+climOCphobic   'kg kg-1'   Y        N               0              0.0      1.0     OCphobic   ExtData/chemistry/MERRAero/v0.0.0/L72/dR_MERRA-AA-r2.aer_Nv.2003_2014.2008clm.nc4
+climOCphilic   'kg kg-1'   Y        N               0              0.0      1.0     OCphilic   ExtData/chemistry/MERRAero/v0.0.0/L72/dR_MERRA-AA-r2.aer_Nv.2003_2014.2008clm.nc4
+
+climBCDP001   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCDP001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climBCWT001   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCWT001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climBCSD001   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCSD001    /dev/null
+climBCSV001   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCSV001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climBCDP002   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCDP002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climBCWT002   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCWT002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climBCSD002   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCSD002    /dev/null
+climBCSV002   'kg m-2 s-1'  Y        N               0              0.0      1.0     BCSV002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climOCDP001   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCDP001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climOCWT001   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCWT001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climOCSD001   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCSD001    /dev/null
+climOCSV001   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCSV001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climOCDP002   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCDP002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climOCWT002   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCWT002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climOCSD002   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCSD002    /dev/null
+climOCSV002   'kg m-2 s-1'  Y        N               0              0.0      1.0     OCSV002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+
+#=========== Carbonaceous aerosol sources ===========================================
+# ORGANIC CARBON
+# ---------------
+# Biomass burning 
+OC_BIOMASS NA  N Y %y4-%m2-%d2t12:00:00 none 0.778 biomass /dev/null
+
+# Biofuel Source -- Included in AeroCom anthropogenic emissions
+OC_BIOFUEL NA  Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+# Anthropogenic (BF & FF) emissions -- allowed to input as two layers
+OC_ANTEOC1 NA  N Y %y4-%m2-%d2t12:00:00 none none oc_nonenergy ExtData/chemistry/CEDS/v2021-04-21/sfc/OC-em-anthro_CMIP_CEDS_gn_nonenergy.x2304_y1441_t12.%y4.nc4
+OC_ANTEOC2 NA  N Y %y4-%m2-%d2t12:00:00 none none oc_energy    ExtData/chemistry/CEDS/v2021-04-21/sfc/OC-em-anthro_CMIP_CEDS_gn_energy.x2304_y1441_t12.%y4.nc4
+
+# EDGAR based ship emissions
+OC_SHIP    NA  N Y %y4-%m2-%d2t12:00:00 none none oc_shipping  ExtData/chemistry/CEDS/v2021-04-21/sfc/OC-em-anthro_CMIP_CEDS_gn_shipping.x2304_y1441_t12.%y4.nc4
+
+# Aircraft fuel consumption
+OC_AIRCRAFT NA  N Y %y4-%m2-%d2t12:00:00 none none oc_aviation ExtData/chemistry/CEDS/v2021-04-21/L72/OC-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-2021-04-21_gn__aviation.x576_y361_z72_t12.%y4.nc4
+
+# Aviation emissions during the three phases of flight
+OC_AVIATION_LTO NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+OC_AVIATION_CDS NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+OC_AVIATION_CRS NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+
+# SOA production
+pSOA_ANTHRO_VOC NA Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+#============================================================================================================
+# BLACK CARBON
+# ------------
+# 
+BC_BIOMASS NA  N Y %y4-%m2-%d2t12:00:00 none 0.778 biomass ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_bc.x576_y361_t14.%y4.nc4
+
+# Biofuel Source -- Included in AeroCom anthropogenic emissions
+BC_BIOFUEL NA  Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+# Anthropogenic (BF & FF) emissions -- allowed to input as two layers
+BC_ANTEBC1 NA  N Y %y4-%m2-%d2t12:00:00 none none bc_nonenergy ExtData/chemistry/CEDS/v2021-04-21/sfc/BC-em-anthro_CMIP_CEDS_gn_nonenergy.x2304_y1441_t12.%y4.nc4
+BC_ANTEBC2 NA  N Y %y4-%m2-%d2t12:00:00 none none bc_energy    ExtData/chemistry/CEDS/v2021-04-21/sfc/BC-em-anthro_CMIP_CEDS_gn_energy.x2304_y1441_t12.%y4.nc4
+
+# EDGAR based ship emissions
+BC_SHIP    NA  N Y %y4-%m2-%d2t12:00:00 none none bc_shipping  ExtData/chemistry/CEDS/v2021-04-21/sfc/BC-em-anthro_CMIP_CEDS_gn_shipping.x2304_y1441_t12.%y4.nc4
+
+# Aircraft fuel consumption
+BC_AIRCRAFT NA  N Y %y4-%m2-%d2t12:00:00 none none bc_aviation ExtData/chemistry/CEDS/v2021-04-21/L72/BC-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-2021-04-21_gn__aviation.x576_y361_z72_t12.%y4.nc4
+
+# Aviation emissions during the LTO, SDC and CRS phases of flight
+BC_AVIATION_LTO NA  Y Y %y4-%m2-%d2t12:00:00 none none bc_aviation /dev/null
+BC_AVIATION_CDS NA  Y Y %y4-%m2-%d2t12:00:00 none none bc_aviation /dev/null
+BC_AVIATION_CRS NA  Y Y %y4-%m2-%d2t12:00:00 none none bc_aviation /dev/null
+
+#============================================================================================================
+# BROWN CARBON
+# ------------
+# Biomass burning
+BRC_BIOMASS NA  N Y %y4-%m2-%d2t12:00:00 none 0.778 biomass ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_oc.x576_y361_t14.%y4.nc4
+
+# Terpene emission
+BRC_TERPENE NA  Y Y %y4-%m2-%d2t12:00:00 none none terpene /dev/null
+
+# Biofuel Source -- Included in AeroCom anthropogenic emissions
+BRC_BIOFUEL NA  Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+# Anthropogenic (BF & FF) emissions -- allowed to input as two layers
+BRC_ANTEBRC1 NA  Y Y %y4-%m2-%d2t12:00:00 none none anteoc1 /dev/null
+BRC_ANTEBRC2 NA  Y Y %y4-%m2-%d2t12:00:00 none none anteoc2 /dev/null
+
+# EDGAR based ship emissions
+BRC_SHIP    NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_ship /dev/null
+
+# Aircraft fuel consumption
+BRC_AIRCRAFT NA  Y Y %y4-%m2-%d2t12:00:00 none none none /dev/null
+
+# Aviation emissions during the three phases of flight
+BRC_AVIATION_LTO NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+BRC_AVIATION_CDS NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+BRC_AVIATION_CRS NA  Y Y %y4-%m2-%d2t12:00:00 none none oc_aviation /dev/null
+
+# SOA production
+pSOA_BIOB_VOC NA Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+%%
diff --git a/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.bc.rc b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.bc.rc
new file mode 120000
index 00000000..96addd7b
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.bc.rc
@@ -0,0 +1 @@
+../CA2G_instance_CA.bc.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.br.rc b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.br.rc
new file mode 120000
index 00000000..29647e22
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.br.rc
@@ -0,0 +1 @@
+../CA2G_instance_CA.br.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.oc.rc b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.oc.rc
new file mode 120000
index 00000000..f073e47b
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/CA2G_GridComp/AMIP.20C/CA2G_instance_CA.oc.rc
@@ -0,0 +1 @@
+../CA2G_instance_CA.oc.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_GridComp_ExtData.rc b/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_GridComp_ExtData.rc
new file mode 120000
index 00000000..7d86d9a2
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_GridComp_ExtData.rc
@@ -0,0 +1 @@
+../DU2G_GridComp_ExtData.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_instance_DU.rc b/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_instance_DU.rc
new file mode 120000
index 00000000..98c38584
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/DU2G_GridComp/AMIP.20C/DU2G_instance_DU.rc
@@ -0,0 +1 @@
+../DU2G_instance_DU.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_GridComp_ExtData.rc b/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_GridComp_ExtData.rc
new file mode 100644
index 00000000..366cb441
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_GridComp_ExtData.rc
@@ -0,0 +1,27 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|----------
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |   File
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template | Frequency
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|-----------
+
+# ======= Nitrate Data Instance ==========
+climNO3an1  'kg kg-1'  N    Y  F0   none      none     NO3AN1    /discover/nobackup/projects/gmao/gmao_ops/pub/fp/das/Y%y4/M%m2/D%d2/GEOS.fp.asm.inst3_3d_aer_Nv.%y4%m2%d2_%h2%n2.V01.nc4  2017-02-01T00:00:00P03:00
+climNO3an2  'kg kg-1'  N    Y  F0   none      none     NO3AN2    /discover/nobackup/projects/gmao/gmao_ops/pub/fp/das/Y%y4/M%m2/D%d2/GEOS.fp.asm.inst3_3d_aer_Nv.%y4%m2%d2_%h2%n2.V01.nc4  2017-02-01T00:00:00P03:00
+climNO3an3  'kg kg-1'  N    Y  F0   none      none     NO3AN3    /discover/nobackup/projects/gmao/gmao_ops/pub/fp/das/Y%y4/M%m2/D%d2/GEOS.fp.asm.inst3_3d_aer_Nv.%y4%m2%d2_%h2%n2.V01.nc4  2017-02-01T00:00:00P03:00
+
+# ======= Nitrate Sources ========
+EMI_NH3_BB   'kg m-2 s-1'  N      Y      %y4-%m2-%d2T12:00:00    none     0.778     biomass     ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_nh3.x576_y361_t14.%y4.nc4 
+EMI_NH3_AG   'kg m-2 s-1'  Y      Y      %y4-%m2-%d2T12:00:00    none     none      nh3_emis    /dev/null
+EMI_NH3_EN   'kg m-2 s-1'  N      Y      %y4-%m2-%d2t12:00:00    none     none      nh3         ExtData/chemistry/CEDS/v2021-04-21/sfc/NH3-em-anthro_CMIP_CEDS_gn.x2304_y1441_t12.%y4.nc4
+EMI_NH3_IN   'kg m-2 s-1'  Y      Y      %y4-%m2-%d2T12:00:00    none     none      nh3_emis    /dev/null
+EMI_NH3_RE   'kg m-2 s-1'  Y      Y      %y4-%m2-%d2T12:00:00    none     none      nh3_emis    /dev/null
+EMI_NH3_TR   'kg m-2 s-1'  Y      Y      %y4-%m2-%d2T12:00:00    none     none      nh3_emis    /dev/null
+EMI_NH3_OC   'kg m-2 s-1'  Y      Y      %y4-%m2-%d2T12:00:00    none     none      emiss_ocn   ExtData/chemistry/GEIA/v0.0.0/sfc/GEIA.emis_NH3.ocean.x576_y361.t12.20080715_12z.nc4
+
+NITRATE_HNO3 'mol mol-1'   N      N      %y4-%m2-%d2T12:00:00    none     0.20     hno3         ExtData/chemistry/MERRA2GMI/v0.0.0/L72/MERRA2_GMI.tavg24_3d_dac_Nv.x576_y361_t12.%y4.nc4
+
+NI_regionMask NA           N      V      -                       none     none     REGION_MASK ExtData/chemistry/Masks/v0.0.0/sfc/ARCTAS.region_mask.x540_y361.2008.nc
+
+#DU            kg kg-1      N      N      -                       none     none     DU          /dev/null
+%%
+
diff --git a/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_instance_NI.rc b/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_instance_NI.rc
new file mode 120000
index 00000000..3fd084b1
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/NI2G_GridComp/AMIP.20C/NI2G_instance_NI.rc
@@ -0,0 +1 @@
+../NI2G_instance_NI.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_GridComp_ExtData.rc b/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_GridComp_ExtData.rc
new file mode 120000
index 00000000..f4a705ce
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_GridComp_ExtData.rc
@@ -0,0 +1 @@
+../SS2G_GridComp_ExtData.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_instance_SS.rc b/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_instance_SS.rc
new file mode 120000
index 00000000..6b0f5725
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/SS2G_GridComp/AMIP.20C/SS2G_instance_SS.rc
@@ -0,0 +1 @@
+../SS2G_instance_SS.rc
\ No newline at end of file
diff --git a/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_GridComp_ExtData.rc b/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_GridComp_ExtData.rc
new file mode 100644
index 00000000..68c6d773
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_GridComp_ExtData.rc
@@ -0,0 +1,67 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+
+#===== Sulfate Data Instance ==========================================
+climSO4         'kg kg-1'     Y   N               0              0.0      1.0     SO4        ExtData/chemistry/MERRAero/v0.0.0/L72/dR_MERRA-AA-r2.aer_Nv.2003_2014.2008clm.nc4
+#climDMS         'kg kg-1'     Y   N               -              0.0      1.0     none       /dev/null
+#climMSA         'kg kg-1'     Y   N               -              0.0      1.0     none       /dev/null
+#climSO2         'kg kg-1'     Y   N               -              0.0      1.0     none       /dev/null
+
+climSUDP001    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUDP001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUWT001    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUWT001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUSD001    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSD001    /dev/null
+climSUSV001    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSV001    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climSUDP002    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUDP002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUWT002    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUWT002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUSD002    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSD002    /dev/null
+climSUSV002    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSV002    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climSUDP003    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUDP003    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUWT003    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUWT003    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUSD003    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSD003    /dev/null
+climSUSV003    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSV003    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+climSUDP004    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUDP004    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUWT004    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUWT004    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+climSUSD004    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSD004    /dev/null
+climSUSV004    'kg m-2 s-1'   Y   N               0              0.0      1.0     SUSV004    ExtData/chemistry/MERRAero/v0.0.0/sfc/dR_MERRA-AA-r2.aer_Nx.2003_2014.2008clm.nc4
+
+
+#====== Sulfate Sources =================================================
+# Biomass burning 
+SU_BIOMASS NA  N Y %y4-%m2-%d2t12:00:00 none 0.778 biomass ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_so2.x576_y361_t14.%y4.nc4
+
+# Anthropogenic (BF & FF) emissions -- allowed to input as two layers
+SU_ANTHROL1 NA  N Y %y4-%m2-%d2t12:00:00 none none so2_nonenergy  ExtData/chemistry/CEDS/v2021-04-21/sfc/SO2-em-anthro_CMIP_CEDS_gn_nonenergy.x2304_y1441_t12.%y4.nc4
+SU_ANTHROL2 NA  N Y %y4-%m2-%d2t12:00:00 none none so2_energy     ExtData/chemistry/CEDS/v2021-04-21/sfc/SO2-em-anthro_CMIP_CEDS_gn_energy.x2304_y1441_t12.%y4.nc4
+
+# Ship emissions
+SU_SHIPSO2    NA  N Y %y4-%m2-%d2t12:00:00 none none so2_shipping ExtData/chemistry/CEDS/v2021-04-21/sfc/SO2-em-anthro_CMIP_CEDS_gn_shipping.x2304_y1441_t12.%y4.nc4
+SU_SHIPSO4    NA  N Y %y4-%m2-%d2t12:00:00 none none so4_shipping ExtData/chemistry/CEDS/v2021-04-21/sfc/SO4-em-anthro_CMIP_CEDS_gn_shipping.x2304_y1441_t12.%y4.nc4
+
+# Aircraft fuel consumption
+SU_AIRCRAFT NA  N Y %y4-%m2-%d2t12:00:00 none none so2_aviation   ExtData/chemistry/CEDS/v2021-04-21/L72/SO2-em-AIR-anthro_input4MIPs_emissions_CMIP_CEDS-2021-04-21_gn__aviation.x576_y361_z72_t12.%y4.nc4
+
+# DMS concentration
+SU_DMSO NA  Y Y %y4-%m2-%d2t12:00:00 none none conc ExtData/chemistry/Lana/v2011/DMSclim_sfcconcentration.x360_y181_t12.Lana2011.nc4
+
+# Aviation emissions during the three phases of flight
+SU_AVIATION_LTO NA  Y Y %y4-%m2-%d2t12:00:00 none none so2_aviation /dev/null
+SU_AVIATION_CDS NA  Y Y %y4-%m2-%d2t12:00:00 none none so2_aviation /dev/null
+SU_AVIATION_CRS NA  Y Y %y4-%m2-%d2t12:00:00 none none so2_aviation /dev/null
+
+# H2O2, OH and NO3 mixing ratios
+SU_H2O2 NA  N Y %y4-%m2-%d2t12:00:00 none none h2o2 ExtData/chemistry/MERRA2GMI/v0.0.0/L72/MERRA2_GMI.tavg24_3d_dac_Nv.x576_y361_t12.%y4.nc4
+SU_OH   NA  N Y %y4-%m2-%d2t12:00:00 none none oh   ExtData/chemistry/MERRA2GMI/v0.0.0/L72/MERRA2_GMI.tavg24_3d_dac_Nv.x576_y361_t12.%y4.nc4
+SU_NO3  NA  N Y %y4-%m2-%d2t12:00:00 none none no3  ExtData/chemistry/MERRA2GMI/v0.0.0/L72/MERRA2_GMI.tavg24_3d_dac_Nv.x576_y361_t12.%y4.nc4
+
+# Production of SO2 from OCS oxidation
+pSO2_OCS NA Y Y %y4-%m2-%d2t12:00:00 none none biofuel /dev/null
+
+#SU_regionMask   NA  N v - none none REGION_MASK ExtData/chemistry/Masks/v0.0.0/sfc/ARCTAS.region_mask.x540_y361.2008.nc
+%%
+
diff --git a/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_instance_SU.rc b/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_instance_SU.rc
new file mode 100644
index 00000000..1901e354
--- /dev/null
+++ b/ESMF/GOCART2G_GridComp/SU2G_GridComp/AMIP.20C/SU2G_instance_SU.rc
@@ -0,0 +1,57 @@
+#
+# Resource file for Sulfer parameters.
+#
+
+aerosol_radBands_optics_file: ExtData/chemistry/AerosolOptics/v0.0.0/x/opticsBands_SU.v1_3.RRTMG.nc
+aerosol_monochromatic_optics_file: ExtData/chemistry/AerosolOptics/v0.0.0/x/optics_SU.v1_3.nc
+
+nbins: 4
+
+# Volcanic pointwise sources
+volcano_srcfilen: ExtData/chemistry/CARN/v202106/sfc/so2_volcanic_emissions_Carns.%y4%m2%d2.rc
+
+# Heights [m] of LTO, CDS and CRS aviation emissions layers
+aviation_vertical_layers: 0.0 100.0 9.0e3 10.0e3
+
+# Fraction of anthropogenic emissions that are SO4
+so4_anthropogenic_fraction: 0.03
+
+# Aircraft emission factor: convert input unit to kg SO2
+aircraft_fuel_emission_factor: 1.0000
+
+# Scavenging efficiency per bin [km-1] (NOT USED UNLESS RAS IS CALLED)
+fscav: 0.0  0.0  0.4  0.4
+
+# Dry particle radius [um], used for settling
+particle_radius_microns: 0.0 0.0 0.35 0.0
+
+# Type of settling to use (see Chem_SettlingMod)
+rhFlag: 4
+
+# Dry particle density [kg m-3]
+particle_density: -1  -1  1700  -1
+
+pressure_lid_in_hPa: 0.01
+
+# Molecular weight of species [kg mole-1]
+molecular_weight: -1  -1  0.132  -1
+
+# Number of particles per kg mass
+fnum: -1  -1  9.01e16  -1
+
+# Number median radius [um]
+particle_radius_number: -1  -1  0.0695  -1
+
+# Sigma of lognormal number distribution
+sigma: -1  -1  2.03  -1
+
+# OH H2O2 NO3 from GMI Combined Stratosphere Troposphere (Lower case yes to enable)
+# -------------------------------------------------------------------------------------
+#using_GMI_OH: no
+#using_GMI_NO3: no
+#using_GMI_H2O2: no
+export_H2O2: no
+using_GMI_OH: .false.
+using_GMI_NO3: .false.
+using_GMI_H2O2: .false.
+
diff --git a/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp.rc b/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp.rc
new file mode 100644
index 00000000..c44d3f18
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp.rc
@@ -0,0 +1,9 @@
+#
+# Resource file for CFC parameters. 
+#
+
+number_CFC_bins: 1
+photolysisFile: ExtData/g5chem/x/SC.J_20_12_79_72_200_38.nc4
+phot_Equation_number: 25
+
+DEBUG: 0
diff --git a/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp_ExtData.rc
new file mode 100644
index 00000000..7035706f
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CFC_GridComp/AMIP.20C/CFC_GridComp_ExtData.rc
@@ -0,0 +1,8 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+CFC12 NA  N Y - none none CFC-12_EMISSION ExtData/g5chem/sfc/ARCTAS.CFC12.emission.x540_y361.2008.hdf
+%%
+
diff --git a/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp.rc b/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp.rc
new file mode 100644
index 00000000..519e00fb
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp.rc
@@ -0,0 +1,14 @@
+#
+#  CH4 main resource file defining the particular instances.
+#
+#  For detailed description of the ARCTAS tags consult:
+#
+#  http://geos5.org/wiki/index.php?title=GEOS-5_Configuration_for_ARCTAS
+#
+# ------------------|-------|------------
+#       Region      | Tag   |   Masking
+# ------------------|-------|------------
+#  All instances    | full  | -1
+# ------------------|-------|------------
+
+CH4_instances: animls coal leak gasvnt hydz msw soilab trmite bogs burn ricec swamps tundra bf tot
diff --git a/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp_ExtData.rc
new file mode 100644
index 00000000..cd77dc88
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CH4_GridComp/AMIP.20C/CH4_GridComp_ExtData.rc
@@ -0,0 +1,39 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+CH4_sfcFluxanimls NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_ANIMLS /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxcoal   NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_COAL   /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxleak   NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_LEAK   /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxgasvnt NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_GASVNT /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxhydz   NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_HYDZ   /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxmsw    NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_MSW    /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxsoilab NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_SOILAB /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxtrmite NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_TRMITE /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxbogs   NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_BOGS   /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxburn   NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_BURN   /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxricec  NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_RICEC  /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxswamps NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_SWAMPS /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxtundra NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_TUNDRA /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxbf     NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_BF     /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_sfcFluxtot    NA  Y Y %y4-%m2-%d2t12:00:00 none none CH4_TOT    /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/emist_plusCH4WangAposteriori.x288_y181_z72_t12.2006.nc 
+CH4_ohanimls      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohcoal        NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohleak        NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohgasvnt      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohhydz        NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohmsw         NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohsoilab      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohtrmite      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohbogs        NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohburn        NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohricec       NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohswamps      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohtundra      NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohbf          NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc 
+CH4_ohtot         NA  Y Y %y4-%m2-%d2t12:00:00 none none oh         /discover/nobackup/projects/gmao/share/dasilva/fvInput/g5chem/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc
+#
+CH4_regionMask    NA  N v - none none REGION_MASK ExtData/g5chem/sfc/ARCTAS.region_mask.x540_y361.2008.nc 
+%%
+
diff --git a/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp.rc b/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp.rc
new file mode 100644
index 00000000..69b0459d
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp.rc
@@ -0,0 +1,50 @@
+#
+# Resource file for CO2 parameters. 
+#
+
+number_CO2_bins:      1 
+CO2_regions_indices: -1 1 2 5
+
+# Run year-specific CMS emissions (0 runs climatological monthly mean emissions, 1 runs CMS)
+# ------------------------------------------------------------------------------------------
+CMS_EMIS: 0
+
+# Biosphere drawdown enhancement factor used for climatological emissions.
+# Range: < 0 invalid, < 1 reduce sink, 1 neutral, > 1 enhance sink.
+# ------------------------------------------------------------------------
+Biosphere_drawdown_factor: 1.2448
+
+# Run-time debug switch (0 off, 1 on)
+# -----------------------------------
+DEBUG: 0
+
+
+
+# Deprecated options
+# ------------------
+# NOTES: 1) The filename variables are all unused because they are now read from
+# CO2_GridComp_ExtData.rc.  However, some versions of the CO2 GridComp require
+# these fields to be present in this file and have a time wildcard (here %y4).
+#
+# 2) The emissions factors are read and applied.  However, scale factors can be
+# specified in CO2_GridComp_ExtData.rc, so for clarity, we now apply them there.
+
+CO2_regions: name_set_in_extdata_rc
+
+CO2_biomass_emission_filename: name_set_in_extdata_rc_%y4
+CO2_biomass_emission_factor: 1.
+
+CO2_fossilfuel_emissions_filename: name_set_in_extdata_rc_%y4
+CO2_fossilfuel_emissions_factor: 1.
+
+CO2_biosphere_emissions_filename: name_set_in_extdata_rc_%y4
+CO2_ocean_emissions_filename: name_set_in_extdata_rc_%y4
+
+CMS_biomass_emission_filename: name_set_in_extdata_rc_%y4
+CMS_biomass_emission_factor: 1.
+
+CMS_fossilfuel_emissions_filename: name_set_in_extdata_rc_%y4
+CMS_fossilfuel_emissions_factor: 1.
+
+CMS_biosphere_emissions_filename: name_set_in_extdata_rc_%y4
+CMS_ocean_emissions_filename: name_set_in_extdata_rc_%y4
diff --git a/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp_ExtData.rc
new file mode 100644
index 00000000..ad06aea5
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CO2_GridComp/AMIP.20C/CO2_GridComp_ExtData.rc
@@ -0,0 +1,19 @@
+PrimaryExports%%
+# A = Climatology? Y/N; B = Conservative regridding? Y/N
+#---------------+-------------------+-+-+---------------------+--------+--------+------------------------------------   
+# Export        |                   | | |_______ Refresh _____|____ Factors ____|_______ External File __________
+# Name          | Units             |A|B|     Time Template   | Offset | Scale  |  Variable   |      Template
+#---------------+-------------------+-+-+---------------------+--------+--------+-------------+----------------------   
+ CO2_BIOMASS     'kg CO2 m-2 s-1'    Y Y F%y4-%m2-%d2t12:00:00 none     none     biomass       ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_co2.x576_y361_t14.%y4.nc4
+ CO2_FF          'kg C m-2 s-1'      Y Y F%y4-%m2-%d2t12:00:00 none     none     emco2ff       ExtData/PIESA/sfc/bian.co2.x288_y181_t12.2001.nc
+ CO2_NEP         'kg C m-2 s-1'      Y Y F%y4-%m2-%d2t12:00:00 none     none     emco2nep      ExtData/PIESA/sfc/bian.co2.x288_y181_t12.2001.nc
+ CO2_OCN         'kg C m-2 s-1'      Y Y F%y4-%m2-%d2t12:00:00 none     none     emco2ocn      ExtData/PIESA/sfc/bian.co2.x288_y181_t12.2001.nc
+
+ CO2_CMS_BIOMASS 'kg C m-2 s-1'      N Y F%y4-%m2-%d2t12:00:00 none     none     biomass       ExtData/PIESA/sfc/CMS/em.daily.1x1.25.%y4.nc
+ CO2_CMS_FF      'kg C m-2 s-1'      N Y F%y4-%m2-%d2t12:00:00 none     none     emco2ff       ExtData/PIESA/sfc/CMS/ORNL_TRANSCOM.co2_ff_nep_ocn.x288_y181_t12.%y4.nc
+ CO2_CMS_NEP     'kg C m-2 s-1'      N Y  P0000-00-00T03:00    none     none     emco2nep      ExtData/PIESA/sfc/CMS/casa.3hr.1x1.25.%y4.nc
+ CO2_CMS_OCN     'kg C m-2 s-1'      N Y F%y4-%m2-%d2t12:00:00 none     none     emco2ocn      ExtData/PIESA/sfc/CMS/NOBM_fco2.daily.1x1.25.%y4.nc
+
+ CO2_regionMask  NA                  N v   -                   none     none     REGION_MASK   ExtData/PIESA/sfc/ARCTAS.region_mask.x540_y361.2008.nc
+#---------------+-------------------+-+-+---------------------+--------+--------+-------------+----------------------   
+%%
diff --git a/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp---full.rc b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp---full.rc
new file mode 100755
index 00000000..ddf34b47
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp---full.rc
@@ -0,0 +1,13 @@
+#
+# Resource file for CO parameters. 
+#
+
+# Run-time debug switch (0 off, 1 on)
+# -----------------------------------
+DEBUG: 0
+
+# Run-time switch on OH provider units
+# Permissable string is "mol/mol" or "mol mol-1"
+# else resorts to assuming "molecules cm-3"
+#------------------------------------------
+units_oh: 0
diff --git a/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp.rc b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp.rc
new file mode 100755
index 00000000..f079fc36
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp.rc
@@ -0,0 +1,27 @@
+#
+#  CO main resource file defining the particular instances.
+#
+#  For detailed description of the GloPac tags consult:
+#
+#  http://www.geos5.org/wiki/index.php?title=GEOS-5_Configuration_for_GloPac
+#
+# ------------------|-------|------------
+#       Region      | Tag   |   Masking
+# ------------------|-------|------------
+#  Biomass burning
+# ------------------|-------|------------
+#   Asia and Europe | bbae  | 3, 9, 10 # no longer includes SE Asia
+#     North America | bbna  | 1
+# Cen. & S. America | bbla  | 2, 6
+#            Africa | bbaf  | 5
+#            Global | bbgl  | Global
+# ------------------|-------|------------
+#  Non-biomass burning
+# ------------------|-------|------------
+#              Asia | nbas  | 4, 10
+#     North America | nbna  | 1
+#            Europe | nbeu  | 3, 9
+#            Global | nbgl  | Global
+# ------------------|-------|------------
+
+CO_instances: full bbae bbna bbla bbaf bbgl nbas nbna nbeu nbgl
diff --git a/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp_ExtData.rc
new file mode 100755
index 00000000..6a662b98
--- /dev/null
+++ b/ESMF/GOCART_GridComp/CO_GridComp/AMIP.20C/CO_GridComp_ExtData.rc
@@ -0,0 +1,112 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+CO_BIOMASS NA  N Y %y4-%m2-%d2t12:00:00 none 1.11 biomass ExtData/chemistry/HFED/v1.0/Y%y4/hfed.emis_co.x576_y361_t14.%y4.nc4
+CO_OH NA  Y Y %y4-%m2-%d2t12:00:00 none none oh ExtData/PIESA/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc
+CO_CH4 NA  Y Y %y4-%m2-%d2t12:00:00 none none ch4 ExtData/PIESA/L72/gmi_oh_ch4_h2o2_no3.x144_y91_z72_t12.2006.nc
+CO_BF NA  Y Y %y4-%m2-%d2t12:00:00 none 1.19 emcobf ExtData/PIESA/sfc/co_biofuel_v2.x360_y181_t12.2001.nc
+CO_FS NA  Y Y %y4-%m2-%d2t12:00:00 none 1.20 emcofs ExtData/PIESA/sfc/co_fossilfuel_v2.x360_y181_t12.2001.nc
+CO_ISOP NA  Y Y %y4-%m2-%d2t12:00:00 none 0.2 emcoisop ExtData/PIESA/sfc/co_biogenic.x288_y181_t12.2006.nc
+CO_NVOC NA  Y Y %y4-%m2-%d2t12:00:00 none none emconvoc ExtData/PIESA/sfc/co_biogenic.x288_y181_t12.2006.nc
+CO_TERP NA  Y Y %y4-%m2-%d2t12:00:00 none none emcoterp ExtData/PIESA/sfc/co_biogenic.x288_y181_t12.2006.nc
+
+CO_CH4bbae NA  Y Y - none none ch4 /dev/null
+CO_BFbbae NA  Y Y - none none bf /dev/null
+CO_FSbbae NA  Y Y - none none fs /dev/null
+CO_ISOPbbae NA  Y Y - none none isop /dev/null
+CO_NVOCbbae NA  Y Y - none none nvoc /dev/null
+CO_TERPbbae NA  Y Y - none none terp /dev/null
+#
+CO_CH4bbna NA  Y Y - none none ch4 /dev/null
+CO_BFbbna NA  Y Y - none none bf /dev/null
+CO_FSbbna NA  Y Y - none none fs /dev/null
+CO_ISOPbbna NA  Y Y - none none isop /dev/null
+CO_NVOCbbna NA  Y Y - none none nvoc /dev/null
+CO_TERPbbna NA  Y Y - none none terp /dev/null
+#
+CO_CH4bbla NA  Y Y - none none ch4 /dev/null
+CO_BFbbla NA  Y Y - none none bf /dev/null
+CO_FSbbla NA  Y Y - none none fs /dev/null
+CO_ISOPbbla NA  Y Y - none none isop /dev/null
+CO_NVOCbbla NA  Y Y - none none nvoc /dev/null
+CO_TERPbbla NA  Y Y - none none terp /dev/null
+#
+CO_CH4bbaf NA  Y Y - none none ch4 /dev/null
+CO_BFbbaf NA  Y Y - none none bf /dev/null
+CO_FSbbaf NA  Y Y - none none fs /dev/null
+CO_ISOPbbaf NA  Y Y - none none isop /dev/null
+CO_NVOCbbaf NA  Y Y - none none nvoc /dev/null
+CO_TERPbbaf NA  Y Y - none none terp /dev/null
+#
+CO_CH4bbgl NA  Y Y - none none ch4 /dev/null
+CO_BFbbgl NA  Y Y - none none bf /dev/null
+CO_FSbbgl NA  Y Y - none none fs /dev/null
+CO_ISOPbbgl NA  Y Y - none none isop /dev/null
+CO_NVOCbbgl NA  Y Y - none none nvoc /dev/null
+CO_TERPbbgl NA  Y Y - none none terp /dev/null
+#
+CO_BIOMASSnbna NA  Y Y - none none terp /dev/null
+#
+CO_BIOMASSnbeu NA  Y Y - none none terp /dev/null
+#
+CO_BIOMASSnbas NA  Y Y - none none terp /dev/null
+#
+CO_BIOMASSnbgl NA  Y Y - none none terp /dev/null
+#
+CO_regionMask NA  N V - none none REGION_MASK ExtData/PIESA/sfc/ARCTAS.region_mask.x540_y361.2008.nc
+%%
+
+
+DerivedExports%%
+# ---------|---------|--------------------------------------------|
+#  Export  | Primary |_________________ Mask _____________________|
+#  Name    |  Name   |    Name    |           Expression          |    
+# ---------|---------|------------|-------------------------------|
+# ---------|---------|------------|-------------------------------|
+CO_BIOMASSbbae regionmask(CO_BIOMASS,CO_regionMask;3,9,10) %y4-%m2-%d2t12:00:00
+CO_BIOMASSbbna regionmask(CO_BIOMASS,CO_regionMask;1) %y4-%m2-%d2t12:00:00
+CO_BIOMASSbbla regionmask(CO_BIOMASS,CO_regionMask;2,6) %y4-%m2-%d2t12:00:00
+CO_BIOMASSbbaf regionmask(CO_BIOMASS,CO_regionMask;5) %y4-%m2-%d2t12:00:00
+CO_BIOMASSbbgl CO_BIOMASS  %y4-%m2-%d2t12:00:00
+#
+CO_CH4nbna regionmask(CO_CH4,CO_regionMask;1) %y4-%m2-%d2t12:00:00 
+CO_BFnbna regionmask(CO_BF,CO_regionMask;1) %y4-%m2-%d2t12:00:00 
+CO_FSnbna regionmask(CO_FS,CO_regionMask;1) %y4-%m2-%d2t12:00:00 
+CO_ISOPnbna regionmask(CO_ISOP,CO_regionMask;1) %y4-%m2-%d2t12:00:00 
+CO_NVOCnbna regionmask(CO_NVOC,CO_regionMask;1) %y4-%m2-%d2t12:00:00 
+CO_TERPnbna regionmask(CO_TERP,CO_regionMask;1) %y4-%m2-%d2t12:00:00
+#
+CO_CH4nbeu regionmask(CO_CH4,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00 
+CO_BFnbeu regionmask(CO_BF,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00 
+CO_FSnbeu regionmask(CO_FS,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00 
+CO_ISOPnbeu regionmask(CO_ISOP,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00 
+CO_NVOCnbeu regionmask(CO_NVOC,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00 
+CO_TERPnbeu regionmask(CO_TERP,CO_regionMask;3,9) %y4-%m2-%d2t12:00:00
+#
+CO_CH4nbas regionmask(CO_CH4,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00 
+CO_BFnbas regionmask(CO_BF,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00 
+CO_FSnbas regionmask(CO_FS,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00 
+CO_ISOPnbas regionmask(CO_ISOP,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00 
+CO_NVOCnbas regionmask(CO_NVOC,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00 
+CO_TERPnbas regionmask(CO_TERP,CO_regionMask;4,10) %y4-%m2-%d2t12:00:00
+#
+CO_CH4nbgl CO_CH4 %y4-%m2-%d2t12:00:00 
+CO_BFnbgl CO_BF %y4-%m2-%d2t12:00:00 
+CO_FSnbgl CO_FS %y4-%m2-%d2t12:00:00 
+CO_ISOPnbgl CO_ISOP %y4-%m2-%d2t12:00:00 
+CO_NVOCnbgl CO_NVOC %y4-%m2-%d2t12:00:00 
+CO_TERPnbgl CO_TERP %y4-%m2-%d2t12:00:00
+#
+CO_OHbbae CO_OH %y4-%m2-%d2t12:00:00
+CO_OHbbna CO_OH %y4-%m2-%d2t12:00:00
+CO_OHbbla CO_OH %y4-%m2-%d2t12:00:00
+CO_OHbbaf CO_OH %y4-%m2-%d2t12:00:00
+CO_OHbbgl CO_OH %y4-%m2-%d2t12:00:00
+CO_OHnbna CO_OH %y4-%m2-%d2t12:00:00
+CO_OHnbeu CO_OH %y4-%m2-%d2t12:00:00
+CO_OHnbas CO_OH %y4-%m2-%d2t12:00:00
+CO_OHnbgl CO_OH %y4-%m2-%d2t12:00:00
+%%
+
diff --git a/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp.rc b/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp.rc
new file mode 100644
index 00000000..2a5d767d
--- /dev/null
+++ b/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp.rc
@@ -0,0 +1,16 @@
+#
+# Resource file for GOCART Ozone grid component.
+#
+# Parameterized chemistry
+# -----------------------
+PCHEMs_file_name: /discover/nobackup/ltakacs/bcs/Ganymed-2_0_M/Shared/pchem.species.Clim_Prod_Loss.z_721x72.nc4
+pchem_clim_years: 1
+
+# GMI chemistry
+# -------------
+veg_file_name: ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+lai_file_name: ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+
+# Debug switch (1=yes or 0=no)
+# ----------------------------
+DEBUG: 0
diff --git a/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp_ExtData.rc
new file mode 100644
index 00000000..3f562311
--- /dev/null
+++ b/ESMF/GOCART_GridComp/O3_GridComp/AMIP.20C/O3_GridComp_ExtData.rc
@@ -0,0 +1,52 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+O3_ireg NA  Y Y - none none ireg ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID001 NA  Y Y - none none iuseVegID001 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID002 NA  Y Y - none none iuseVegID002 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID003 NA  Y Y - none none iuseVegID003 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID004 NA  Y Y - none none iuseVegID004 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID005 NA  Y Y - none none iuseVegID005 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID006 NA  Y Y - none none iuseVegID006 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID007 NA  Y Y - none none iuseVegID007 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID008 NA  Y Y - none none iuseVegID008 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID009 NA  Y Y - none none iuseVegID009 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID010 NA  Y Y - none none iuseVegID010 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID011 NA  Y Y - none none iuseVegID011 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID012 NA  Y Y - none none iuseVegID012 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID013 NA  Y Y - none none iuseVegID013 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID014 NA  Y Y - none none iuseVegID014 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_iuseVegID015 NA  Y Y - none none iuseVegID015 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID001 NA  Y Y - none none ilandVegID001 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID002 NA  Y Y - none none ilandVegID002 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID003 NA  Y Y - none none ilandVegID003 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID004 NA  Y Y - none none ilandVegID004 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID005 NA  Y Y - none none ilandVegID005 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID006 NA  Y Y - none none ilandVegID006 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID007 NA  Y Y - none none ilandVegID007 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID008 NA  Y Y - none none ilandVegID008 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID009 NA  Y Y - none none ilandVegID009 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID010 NA  Y Y - none none ilandVegID010 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID011 NA  Y Y - none none ilandVegID011 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID012 NA  Y Y - none none ilandVegID012 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID013 NA  Y Y - none none ilandVegID013 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID014 NA  Y Y - none none ilandVegID014 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_ilandVegID015 NA  Y Y - none none ilandVegID015 ExtData/g5chem/sfc/vegetationType_GMI.x288_y181_t12.2006.nc
+O3_laiVegID001 NA  Y Y - none none laiVegID001 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID002 NA  Y Y - none none laiVegID002 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID003 NA  Y Y - none none laiVegID003 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID004 NA  Y Y - none none laiVegID004 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID005 NA  Y Y - none none laiVegID005 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID006 NA  Y Y - none none laiVegID006 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID007 NA  Y Y - none none laiVegID007 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID008 NA  Y Y - none none laiVegID008 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID009 NA  Y Y - none none laiVegID009 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID010 NA  Y Y - none none laiVegID010 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID011 NA  Y Y - none none laiVegID011 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID012 NA  Y Y - none none laiVegID012 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID013 NA  Y Y - none none laiVegID013 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID014 NA  Y Y - none none laiVegID014 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+O3_laiVegID015 NA  Y Y - none none laiVegID015 ExtData/g5chem/sfc/leafAreaIndex_GMI.x288_y181_t12.2006.nc
+%%
diff --git a/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp---full.rc b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp---full.rc
new file mode 100644
index 00000000..99ba0ec2
--- /dev/null
+++ b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp---full.rc
@@ -0,0 +1,32 @@
+#
+# Resource file for Radon parameters. 
+#
+
+number_Rn_bins: 1 
+Rn_regions: ExtData/g5chem/sfc/RADON.region_mask.x540_y361.2001.nc
+
+# Indicate regions using a comma-delimited list of integers.
+# To activate all land boxes, use -1, or all or global (not case sensitive)
+# -------------------------------------------------------------------------
+Rn_regions_indices: -1
+
+# For all land boxes in a latitude range, set doZoneMasking to
+# 1 then specify BOTH the south and north limits in degrees.
+# WARNING: When set, zone masking OVERRIDES regions setting above!
+# ----------------------------------------------------------------
+doZoneMasking: 0
+LatitudeSouth: 45.0
+LatitudeNorth: 90.0
+
+# Half-life and unit, which must be "years", "days", or "seconds".
+# ----------------------------------------------------------------
+HalfLife: 3.823
+HalfLifeUnit: days
+
+# Emission, mBq m^{-2} s^{-1}
+# ---------------------------
+Rn_emission_file_name: ExtData/g5chem/sfc/gocart.radon.x540_y361.nc
+
+# Run-time debug switch [0 = off, 1 = on]
+# ---------------------------------------
+DEBUG: 0
diff --git a/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp.rc b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp.rc
new file mode 100644
index 00000000..c1c5eb56
--- /dev/null
+++ b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp.rc
@@ -0,0 +1,16 @@
+#
+#  Radon main resource file defining the particular instances.
+#  Regions based on: RADON.region_mask.x540_y361.2008.nc
+#
+# ------------------|-------|------------
+#       Region      | Tag   |   Masking
+# ------------------|-------|------------
+#  Asia             | Asia  | 4
+#  Europe           | Euro  | 3
+#  North America    | NoAm  | 1,2
+#  Sorth America    | SoAm  | 6
+#  Africa           | Afri  | 5
+#  Australia        | Aust  | 7
+# ------------------|-------|------------
+
+Rn_instances: full Asia Euro NoAm SoAm Afri Aust
diff --git a/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp_ExtData.rc b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp_ExtData.rc
new file mode 100644
index 00000000..acb6e571
--- /dev/null
+++ b/ESMF/GOCART_GridComp/Rn_GridComp/AMIP.20C/Rn_GridComp_ExtData.rc
@@ -0,0 +1,17 @@
+PrimaryExports%%
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+#  Import      |       |       | Regrid |        Refresh       | OffSet | Scale  | Variable On |   File   |
+#  Name        | Units | Clim  | Method |     Time Template    | Factor | Factor |     File    | Template |
+# -------------|-------|-------|--------|----------------------|--------|--------|-------------|----------|
+Rn_EMISSION NA  Y Y %y4-%m2-%d2t12:00:00 none none Rn_EMISSION ExtData/g5chem/sfc/gocart.radon.x540_y361.nc
+RN_regionMask NA  N V - none none REGION_MASK ExtData/g5chem/sfc/RADON.region_mask.x540_y361.2001.nc
+%%
+
+DerivedExports%%
+Rn_EMISSIONAfri regionmask(Rn_EMISSION,Rn_regionMask;5) %y4-%m2-%d2t12:00:00
+Rn_EMISSIONAsia regionmask(Rn_EMISSION,Rn_regionMask;4) %y4-%m2-%d2t12:00:00
+Rn_EMISSIONAust regionmask(Rn_EMISSION,Rn_regionMask;7) %y4-%m2-%d2t12:00:00
+Rn_EMISSIONEuro regionmask(Rn_EMISSION,Rn_regionMask;3) %y4-%m2-%d2t12:00:00
+Rn_EMISSIONSoAm regionmask(Rn_EMISSION,Rn_regionMask;6) %y4-%m2-%d2t12:00:00
+Rn_EMISSIONNoAm regionmask(Rn_EMISSION,Rn_regionMask;1,2) %y4-%m2-%d2t12:00:00
+%%