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Implement GRPI CH4 rice emissions to replace EDGAR
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The Global Rice Patty Inventory (GRPI) as documented in Z. Chen et al. (2025)
is added as the default global rice emissions inventory in CH4 and carbon
simulations. The GHGI_v2 (US) and Scarpelli_Mexico rice emissions will still
be used over the US and Mexico. GRPI emissions are monthly and provided at
0.1x0.1 resolution. They are based on Landsat satellite inundation data.

Reference:
Chen, Z., Lin, H., Balasus, N., Hardy, A., East. J.D., Zhang, Y., Runkle,
  B.R.K., Hancock, S.E., Taylor, C.A., Du, X., Sander, B.O., Jacob, D. J. ,
  Global Rice Paddy Inventory (GRPI): a  high-resolution inventory of methane
  emissions from rice agriculture based on Landsat satellite inundation data,
  submitted to Earth's Future, https://doi.org/10.31223/X5941Z, 2025.

Signed-off-by: Melissa Sulprizio <[email protected]>
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msulprizio committed Jan 8, 2025
1 parent 3de2b85 commit 2b1acfe
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
### Added
- Added Australian Hg emissions for 2000-2019 from MacFarlane et. al. [2022], plus corresponding mask file
- Added comments in GEOS-Chem Classic `HISTORY.rc` template files advising users not to change the `BoundaryConditions.frequency` setting
- Implemented the Global Rice Patty Inventory (GRPI) for CH4 and carbon simulations to replace EDGAR rice emissions

### Fixed
- Reverted CH4 livestock emissions to EDGAR v7 to avoid hotspots and to apply seasonality
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10 changes: 10 additions & 0 deletions run/GCClassic/HEMCO_Config.rc.templates/HEMCO_Config.rc.CH4
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Expand Up @@ -63,6 +63,7 @@ VerboseOnCores: root # Accepted values: root all
--> Scarpelli_Mexico : true # 2015
# ----- GLOBAL INVENTORIES ----------------------------------------------------
--> GFEIv2 : true # 2019
--> GRPI : true # 2022
--> EDGARv8 : true # 2010-2022
--> QFED2 : false # 2009-2015
--> JPL_WETCHARTS : true # 2009-2017
Expand Down Expand Up @@ -366,6 +367,15 @@ VerboseOnCores: root # Accepted values: root all
0 GFEI_CH4_COAL $ROOT/CH4/v2022-01/GFEIv2/Global_Fuel_Exploitation_Inventory_v2_2019_Coal.nc emis_ch4 2019/1/1/0 C xy molec/cm2/s CH4 - 3 5
)))GFEIv2

#==============================================================================
# --- Global Rice Patty Inventory (GRPI, Zichong Chen et al., 2025) ---
#
# This inventory will replace EDGAR (rice)
#==============================================================================
(((GRPI
0 GRPI_CH4_RICE $ROOT/CH4/v2025-01/GRPI/GRPI_01x01.nc emi_ch4 2022/1-12/1/0 C xy kg/m2/s CH4 - 7 5
)))GRPI

#==============================================================================
# --- EDGAR v8.0 emissions ---
#
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10 changes: 10 additions & 0 deletions run/GCClassic/HEMCO_Config.rc.templates/HEMCO_Config.rc.carbon
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Expand Up @@ -70,6 +70,7 @@ Mask fractions: false
--> Scarpelli_Mexico : true # 2015
# ..... Global Inventories ...........
--> GFEIv2 : true # 2019
--> GRPI : true # 2022
--> EDGARv8 : true # 2010-2022
--> QFED2 : false # 2009-2015
--> JPL_WETCHARTS : true # 2009-2017
Expand Down Expand Up @@ -409,6 +410,15 @@ Mask fractions: false
0 GFEI_CH4_COAL $ROOT/CH4/v2022-01/GFEIv2/Global_Fuel_Exploitation_Inventory_v2_2019_Coal.nc emis_ch4 2019/1/1/0 C xy molec/cm2/s CH4 - 3 5
)))GFEIv2

#==============================================================================
# --- Global Rice Patty Inventory (GRPI, Zichong Chen et al., 2025) ---
#
# This inventory will replace EDGAR (rice)
#==============================================================================
(((GRPI
0 GRPI_CH4_RICE $ROOT/CH4/v2025-01/GRPI/GRPI_01x01.nc emi_ch4 2022/1-12/1/0 C xy kg/m2/s CH4 - 7 5
)))GRPI

#==============================================================================
# --- CH4: EDGAR v8.0 emissions ---
#
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3 changes: 3 additions & 0 deletions run/GCHP/ExtData.rc.templates/ExtData.rc.carbon
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Expand Up @@ -195,6 +195,9 @@ GFEI_CH4_OIL kg/m2/s N Y - none 2.66350462E-22 emis_ch4 ./HcoDir/CH4/v2022-01/
GFEI_CH4_GAS kg/m2/s N Y - none 2.66350462E-22 emis_ch4 ./HcoDir/CH4/v2022-01/GFEIv2/Global_Fuel_Exploitation_Inventory_v2_2019_Gas_All.nc
GFEI_CH4_COAL kg/m2/s N Y - none 2.66350462E-22 emis_ch4 ./HcoDir/CH4/v2022-01/GFEIv2/Global_Fuel_Exploitation_Inventory_v2_2019_Coal.nc

# --- GRPI ---
GRPI_CH4_RICE kg/m2/s N Y F2022-%m2-01T00:00:00 none none emi_ch4 ./HcoDir/CH4/v2025-01/GRPI/GRPI_01x01.nc

# --- EDGAR v8.0 ---
EDGAR8_CH4_PRO_OIL kg/m2/s N Y F%y4-%m2-01T00:00:00 none none emi_ch4 ./HcoDir/CH4/v2024-02/EDGARv8/%y4/v8.0_FT2022_GHG_CH4_%y4_PRO_OIL_flx.nc
EDGAR8_CH4_REF_TRF kg/m2/s N Y F%y4-%m2-01T00:00:00 none none emi_ch4 ./HcoDir/CH4/v2024-02/EDGARv8/%y4/v8.0_FT2022_GHG_CH4_%y4_REF_TRF_flx.nc
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10 changes: 10 additions & 0 deletions run/GCHP/HEMCO_Config.rc.templates/HEMCO_Config.rc.carbon
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Expand Up @@ -70,6 +70,7 @@ Mask fractions: false
--> Scarpelli_Mexico : true # 2015
# ..... Global Inventories ...........
--> GFEIv2 : true # 2019
--> GRPI : true # 2022
--> EDGARv8 : true # 2010-2022
--> QFED2 : false # 2009-2015
--> JPL_WETCHARTS : true # 2009-2017
Expand Down Expand Up @@ -409,6 +410,15 @@ Mask fractions: false
0 GFEI_CH4_COAL $ROOT/CH4/v2022-01/GFEIv2/Global_Fuel_Exploitation_Inventory_v2_2019_Coal.nc emis_ch4 2019/1/1/0 C xy molec/cm2/s CH4 - 3 5
)))GFEIv2

#==============================================================================
# --- Global Rice Patty Inventory (GRPI, Zichong Chen et al., 2025) ---
#
# This inventory will replace EDGAR (rice)
#==============================================================================
(((GRPI
0 GRPI_CH4_RICE $ROOT/CH4/v2025-01/GRPI/GRPI_01x01.nc emi_ch4 2022/1-12/1/0 C xy kg/m2/s CH4 - 7 5
)))GRPI

#==============================================================================
# --- CH4: EDGAR v8.0 emissions ---
#
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