Emissions Input Data

This directory contains emissions input fields used to drive simulations utilized in Persad, G. The Dependence of Aerosols’ Global and Local Precipitation Impacts on Emitting Region (submitted, Atmospheric Chemistry and Physics) and published in Persad, G. G. & Caldeira, K. Divergent global-scale temperature effects from identical aerosols emitted in different regions. Nature Communications 9, 3289 (2018). Full details on simulation set-up may be found in Persad and Caldeira (2018) and Persad (submitted, Atmospheric Chemistry and Physics)

From the Persad and Caldeira (2018) Simulation and Analysis section:
"Nine 100-year, repeating annual cycle simulations were conducted in CAM5 coupled to the mixed-layer ocean: one control simulation, and eight regionally perturbed simulations. The control simulation is a year 2000 cli- mate with non-biomass burning anthropogenic black carbon, organic carbon, sulfur dioxide (SO2), and sulfate (SO4) emissions fields set to 1850 values. In each of the eight regionally perturbed simulations, the relevant region is populated with that region’s year 2000 values, scaled at every regional grid point and time step to achieve additional total annual emissions equivalent to China’s total year 2000 values: 22.4 Tg sulfate precursor, 1.61 Tg of black carbon emissions, and 4.03 Tg of organic carbon emissions. The 1850 and 2000 baseline emissions fields on which these are based are CAM5’s standard historical emissions fields1, and the resulting emissions fields used to drive simulations are publicly accessible to allow for replication in other model suites (see Data availability). "

See Persad and Caldeira (2018) Figure 1 and Methods for region definitions.

Questions can be directed to the corresponding author at [e-mail]

Emissions input fields:

Control Simulation
/Control
-Control_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the control simulation. All input files listed are default available through NCAR CESM installations and the NCAR CESM server (https://svn-ccsm-inputdata.cgd.ucar.edu/trunk/inputdata/atm/cam/chem/trop_mozart_aero/emis/) and are not included here.

Eight Regional Perturbation Simulations
/Brazil
-Brazil_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Brazil. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).
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/China
-China_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in China. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/East_Africa
-East_Africa_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in East Africa. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/Western_Europe
-Western_Europe_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Western Europe. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/India
-India_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in India. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/Indonesia
-Indonesia_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in Indonesia. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/South_Africa
-South_Africa_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in South Africa. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).

/United_States
-United_States_User_Namelist: Contains NCAR CESM user namelist specification with listing of all emissions input files for the regional perturbation simulation with scaled emissions located in the United States. All referenced files not listed in this directory are default available through the NCAR CESM server (see Control Simulation above).