Hi,
I have been working with WRF and attempting to make use of the passive tracers that can be implemented within the model. I have had some success and have managed to modify the code to allow me to describe a lat-lon limited box of a given depth (in the namelist.input) to be the source of my tracers. I have also managed to control the emission based on other features such as land mask and thresholds of other WRF variables.
However, I would also like the capability to initialise the distribution my tracer based off an input file. The source of this initialisation data is uncertain at the moment but it is likely that I will want to make sure that my approach is as flexible as possible. This would allow for a tracer to represent things as diverse as atmospheric pollutants (CO from wild fires), volcanic ash plumes, desert dust etc. Therefore the source files wont necessarily be a single specific source type and will certainly be different from the meteorological initialisation data source (I'm currently using GFS). I would also like the capability to read a tracer field from a previous WRF simulation to use as the initialisation point for a new forecast. This would allow me to continue to advect a tracer emitted in previous forecasts in the latest forecast.
I am struggling to work out the best place to start. If possible I would rather avoid significant rewriting of metgrid and real. Is there already some functionality that would allow me to read data from an auxillary source and use this to initialise a tracer field? If this is not the case any advice on where to start would be greatly appreciated.
Kind regards
Alex
I have been working with WRF and attempting to make use of the passive tracers that can be implemented within the model. I have had some success and have managed to modify the code to allow me to describe a lat-lon limited box of a given depth (in the namelist.input) to be the source of my tracers. I have also managed to control the emission based on other features such as land mask and thresholds of other WRF variables.
However, I would also like the capability to initialise the distribution my tracer based off an input file. The source of this initialisation data is uncertain at the moment but it is likely that I will want to make sure that my approach is as flexible as possible. This would allow for a tracer to represent things as diverse as atmospheric pollutants (CO from wild fires), volcanic ash plumes, desert dust etc. Therefore the source files wont necessarily be a single specific source type and will certainly be different from the meteorological initialisation data source (I'm currently using GFS). I would also like the capability to read a tracer field from a previous WRF simulation to use as the initialisation point for a new forecast. This would allow me to continue to advect a tracer emitted in previous forecasts in the latest forecast.
I am struggling to work out the best place to start. If possible I would rather avoid significant rewriting of metgrid and real. Is there already some functionality that would allow me to read data from an auxillary source and use this to initialise a tracer field? If this is not the case any advice on where to start would be greatly appreciated.
Kind regards
Alex