Questions tagged [wrf-chem]
The wrf-chem tag has no usage guidance.
24
questions
1
vote
0
answers
44
views
Error message in metpy function interpolate_to_isosurface for relative humidity variable from wrf
I want to extract relative humidity at a specific pressure level (850 hPa) using metpy. Earlier, I tried with wrf-python function 'wrf.interplevel' and it worked successfully. But, I was getting some ...
- 11
1
vote
0
answers
53
views
Which way is the more computationally efficient for running WRF-Chem with one way nesting: (a) by setting feedback to '0' or (b) using ndown.exe?
I want to run WRF-Chem with one-way nesting because of the limitations of my system (a linux server with 378 GB of RAM and 32 processors). I have gone through the WRF user guide, which explained how ...
- 31
1
vote
0
answers
48
views
Query on the 'namelist.input' file for running WRF-Chem to study aerosol-cloud-climate interaction
I have a small inquiry about the setup of some variables in 'namelist.input' file for running WRF-Chem to study aerosol-cloud-climate interaction. After going through various research papers on ...
- 31
1
vote
0
answers
27
views
How to edit datesec array in edgar_v5_2015 emission files (netcdf format)?
I am using EDGAR V5 2015 emission files (edgar_v5_2015__0.1x0.1.nc) for WRF-Chem simulation. After giving the ncdump -v date,datesec edgar_v5_2015_CO_0.1x0.1.nc > ncdump.log command, I learned that ...
- 31
2
votes
1
answer
48
views
Can historical emissions data be used for a future WRF-Chem model run?
I am new to running the WRF-Chem model, so this question maybe a little elementary. I wanted to perform an year-long simulation of certain chemical species for 2019 and for that, is it sufficient to ...
2
votes
1
answer
403
views
Is spin-up really required to run the WRF-Chem model and if so, what determines the time period of the spin-up?
For example, I am interested in making a simulation for some chemical species for 2019. I am planning to provide NCEP/GDAS FNL meteorological data at 0.25 degree and CAM-Chem chemical boundary layer. ...
4
votes
0
answers
266
views
How to run WRF-VPRM
Chem Users!
Is there any guide on how to run WRF-Chem with online VPRM calculations for implementing biogenic CO2 emissions? Recently I have run successfully VPRMpreproc using the WRF-VPRMpreproc ...
- 311
4
votes
0
answers
81
views
compile WRF-VPRM to have EBIO_GEE and EBIO_RES fluxes in your output
I am working on WRF_GHG, I would like to run WRF-VPRM and I've put the vprm input files in WRF folder(vprm_input_d01_2010-01-16_00:00:00,vprm_input_d01_2010-01-17_00:00:00).but when I run wrf(./wrf....
- 311
1
vote
1
answer
188
views
Why are all the variables ( DRY_DEP_FLUX and WET_DEP_FLUX) zero in a wrf model output in all the time steps
I am working on WRF_GHG, I would like to calculate dry and wet deposition in the dry and wet seasons for CO2 and CH4 gases. However, when I check the wrf output, I see that all the variables (...
- 311
2
votes
1
answer
439
views
How to find the top level of the planetary boundary layer in WRF?
I am working on WRF_Chem, I would like to calculate the concentration of CO2 just in the Planetary boundary layer(I mean, I want to calculate CO2 from surface to top of PBL).in WRF How can I calculate ...
- 311
2
votes
1
answer
155
views
regeride netcdf file to template netcdf file resoulution
how can I regrid my NetCDF file into another NetCDF file resolution?
change the file number 1 or 2 or 3 (file1.nc,file2.nc,file3.nc ) into resolution template file (wrfinput_d01.nc) . I have attached ...
- 311
1
vote
0
answers
131
views
wrf_chemi file with 30 time steps
I creat wrfchemi file for my wrf-chem, my wrfchemi file has 30 time step,
frames_per_auxinput5 = 30, 30,
auxinput5_inname = "wrfchemi_d",
auxinput5_interval_m = 60, 60,
...
- 311
1
vote
0
answers
333
views
Providing Edgar emission using prep_chem_source for tracers (CO2-CH4)
I am working on CO2 and CH4 by WRF-CHEM, for providing my anthropogenic emission from Edgar data base, I'm going to use the Prep_chem_source App.
I would like to use Edgar data emission (as my ...
- 311
1
vote
1
answer
167
views
Longitudes and latitudes are not regular in WRF-out files
I am working by WRF-ouput files (wrfout_d01_2016-01-16_00:00:00).
I extracted and printed latitude and longitude data from the "wrfout_d01_2016-01-16_00:00:00", ...
- 311
3
votes
0
answers
237
views
Create emission files by my data emission for wrf-chem
Does anybody here have any experience with creating my own wrfchemi outputs from the emissions that are in different format, txt, netcdf and grib for instance?
What I want to do, basically, is to ...
- 311
3
votes
1
answer
48
views
Spatial allocation of road emissions and unit conversion
I have a grid shapefile that has a resolution of 1km x 1km.
This grid is then used to spatially allocate road emissions.
My goal is to get the emissions in the unit: μg m-2 s-1(microgram per ...
- 311
1
vote
2
answers
472
views
WRF/Chem: Editing NetCDF (wrfchemi files) for own emissions
Does anybody here have any experience with editing wrfchemi outputs from the prep_chem utility so that I overwrite the file with my own emissions?
I am knowledgeable in python, but I am not that well ...
- 311
3
votes
0
answers
74
views
Error of compiling the wrf-chem V3.5 model
I have gone through the link (http://www2.mmm.ucar.edu/wrf/OnLineTutorial/compilation_tutorial.php) to build wrf libraries. I installed netcdf v4.1.3, mpich v3.0.4, jasper v1.900.1, zlib v1.2.7, and ...
- 31
2
votes
1
answer
2k
views
run the WRF model using ERA5
I want to run wrf chem with ERA 5. I followed this post https://dreambooker.site/2018/04/20/Initializing-the-WRF-model-with-ERA5/. Everything works fine unless I add surface pressure to surface data ...
1
vote
1
answer
1k
views
WRF: EPSG code or spatial reference for Lambert conformal, Mercator and polar stereographic projections [closed]
I'm building an R package (https://github.com/ibarraespinosa/wrftools) to read namelist.wps and return a dynamic map which you can make zoom. In my case, it would be very beneficial because writing a ...
- 412
5
votes
2
answers
697
views
How to map emission inventory from lat&lon corrdinate to WRF model grid
Here, I have a regional emission inventory, which mainly contains the varibales of lat,lon,...
- 81
3
votes
0
answers
230
views
What is the general procedure to run WRF-chem with chen_opt=16
Is there anybody who has run WRF-chem with chem_opt=16 successfully to simulate the green house gases? According to the User guide, it can be done in this way. But ...
- 81
6
votes
1
answer
1k
views
Why is WRF-Chem not reading my emissions data?
I've been trying to run WRF-Chem with my emissions but they are not being read by WRF-Chem. RADM2.
I have emissions for the whole week, so io_style_emissions = 2 ...
- 412
3
votes
1
answer
108
views
What denotes a parameterization in a model? (semantics )
I know that WRF has many different uses and options, from atmospheric chemistry to uses with fires, and so on. What exactly denotes a parameterization? For example, in WRF-Chem, is the chemistry ...
- 8,684