This repository focuses on installing the Weather Research and Forecasting (WRF) coupled with the Community Multiscale Air Quality (CMAQ) model. The WRF-CMAQ model (Wong et al., 2012) facilitates the exchange of information between CMAQ and WRF, allowing the examination of how chemistry impacts weather phenomena.
This repository also provides Bash scripts to install the I/O API v3.2 library, a necessary dependency for the WRF-CMAQ model. The I/O API installation script is tailored explicitly for the AMANAN server, utilizing the Intel compiler. The other script installs the WRF-CMAQ model using libraries from the I/O API 3.2 and others already installed, such as netCDF (netCDF-C and netCDF-Fortran) and MPICH.
We encourage the IT team of the IAG-USP can use these scripts to facilitate the installation of the I/O API v3.2 and the WRF-CMAQ coupled model.
We followed the installation tutorials from the US EPA GitHub:
- Create scripts to install for any user inside the AMANAN server.
- Create an I/O API helpful script for the IT team of the IAG-USP, who can use it to install a shared library for users that want to install WRF-CMAQ.
Please, ENSURE that your .bashrc is set up to switch off the chemical option and KPP of WRF:
export WRF_EM_CORE=1
export WRF_NMM_CORE=0
export WRF_CHEM=0 # Chemistry turned off
export WRFIO_NCD_LARGE_FILE_SUPPORT=1
export WRF_KPP=0 # KPP turned off
export YACC='/usr/bin/yacc -d'
export FLEX_LIB_DIR="/usr/lib64"
export MALLOC_CHECK_=0On the other hand, if your .bashrc has commented lines such as # export WRF_CHEM=1, please go out from the server and enter again and verify in the terminal your variables:
[alejandro@amanan ~]$ echo $WRF_CHEM $WRF_KPP $HDF5
[alejandro@amanan ~]$
If there is nothing to see, you are right.
The Meteorology-Chemistry Interface Processor (MCIP) ingests output from the Weather Research and Forecasting (WRF) Model to prepare the meteorology files used within the CMAQ Modeling System. However, WRF-CMAQ coupled model doesn't require the MCIP program, because it can create the GRIDDESC and other files (METCRO2D...). The MCIP output is also helpful for creating SMOKE emission files considering global emissions from CAMS and EDGAR. We can install the MCIP if we have installed the I/O API and the netCDF, successfully. The installation steps are:
- Create an alias called "lib" in your I/O API directory that it has been installed previously.
ln -sf ~/BLDLIB/ioapi-3.2/Linux2_x86_64ifort lib - Go to
/home/alejandro/WRFCMAQv5.4/PREP/mcip/src - Open the Makefile. I used
vi Makefileto open it.
49 #...Intel Fortran
50 FC = ifort
51 NETCDF = /opt/comp_ifort_2021/netcdf
52 IOAPI_ROOT = /home/alejandro/BLDLIB/ioapi-3.2
53 ###FFLAGS = -g -O0 -check all -C -traceback -FR -I$(NETCDF)/include \
54 ### -I$(IOAPI_ROOT)/Linux2_x86_64ifort
55 FFLAGS = -O3 -traceback -FR -I$(NETCDF)/include -I$(IOAPI_ROOT)/Linux2_x86_64ifort
56 LIBS = -L$(IOAPI_ROOT)/lib -lioapi \
57 -L$(NETCDF)/lib -lnetcdff -lnetcdf
- Close Makefile and install the MCIP with
make |& tee make.mcip.log - Verify if the
mcip.exewas created.
- Go to the directory that contains the BCON scripts:
csh
cd $CMAQ_HOME/PREP/bcon/scripts
./bldit_bcon.csh intel |& tee make_bcon.log
Look for the executable BCON_v54.exe in the $CMAQ_HOME/PREP/bcon/scripts/BLD_BCON_v54_intel directory to see if the build script completed successfully.
- Go to the directory that contains the BCON scripts:
csh
cd $CMAQ_HOME/PREP/icon/scripts
./bldit_icon.csh intel |& tee make_icon.log
Look for the executable ICON_v54.exe in the $CMAQ_HOME/PREP/bcon/scripts/BLD_ICON_v54_intel directory to see if the build script completed successfully.
Thank you to the US EPA for creating WRF-CMAQ and to the CMAS Center (https://cmascenter.org/) for developing the I/O API v3.2 program.