catalinaporaicu
New member
Hello,
I am trying to use WRF-Chem with wrfchemi emission input files that have emissions in the vertical dimension as well, so not only at ground level. I tried doing some simulations of this through "shifting" my emissions up from the 0th level to the 1st,2nd,3rd, etc. so that the emissions were no longer at the surface, and were higher up, while all the other levels had emissions equal to zero. I have been using the anthro_emis preprocessor to create the wrfchemi files, and then doing my own postprocessing to "shift" the emissions up. I am doing this in order to see if 1. the model can read vertical emissions and 2. to figure out the distributions of the vertical levels in wrfchemi files, as there is no height/thickness of levels variable in these files once they are output from the anthro_emis preprocessor, which is strange since you can specify vertical levels.
I noticed that when my emissions were at the 0th level, this worked fine, and I had similar results to what I had done in the past. However, when the emissions were shifted to level 1,2,3,...n, all of the output for the chemical concentrations was the same, even in the vertical dimension, which I did not expect.
Is there a namelist specification I need to use in order to define the amount of vertical levels in the wrfchemi files, and to tell the model to read them? At the moment, what I guess is happening is that the model expects all the emissions to be at level zero and does not read anything above that, which would explain why all the other runs are identical in output.
I've not found any information in the readme file of the anthro_emis preprocessor, or the WRF/WRF-Chem user guide, so any tips would be greatly appreciated!
Catalina
I am trying to use WRF-Chem with wrfchemi emission input files that have emissions in the vertical dimension as well, so not only at ground level. I tried doing some simulations of this through "shifting" my emissions up from the 0th level to the 1st,2nd,3rd, etc. so that the emissions were no longer at the surface, and were higher up, while all the other levels had emissions equal to zero. I have been using the anthro_emis preprocessor to create the wrfchemi files, and then doing my own postprocessing to "shift" the emissions up. I am doing this in order to see if 1. the model can read vertical emissions and 2. to figure out the distributions of the vertical levels in wrfchemi files, as there is no height/thickness of levels variable in these files once they are output from the anthro_emis preprocessor, which is strange since you can specify vertical levels.
I noticed that when my emissions were at the 0th level, this worked fine, and I had similar results to what I had done in the past. However, when the emissions were shifted to level 1,2,3,...n, all of the output for the chemical concentrations was the same, even in the vertical dimension, which I did not expect.
Is there a namelist specification I need to use in order to define the amount of vertical levels in the wrfchemi files, and to tell the model to read them? At the moment, what I guess is happening is that the model expects all the emissions to be at level zero and does not read anything above that, which would explain why all the other runs are identical in output.
I've not found any information in the readme file of the anthro_emis preprocessor, or the WRF/WRF-Chem user guide, so any tips would be greatly appreciated!
Catalina