Search found 7 matches

by woodllan
Wed Jan 27, 2021 3:12 am
Forum: Emissions
Topic: How to add dust tracers to determine source regions
Replies: 8
Views: 312

Re: How to add dust tracers to determine source regions

Thank you for the detailed instruction, Jordan!
I will try it out and keep you guys posted!
by woodllan
Tue Jan 26, 2021 5:48 pm
Forum: Emissions
Topic: How to add dust tracers to determine source regions
Replies: 8
Views: 312

Re: How to add dust tracers to determine source regions

Thank you, Jordan!

I am using chem_opt = 300. Basically, a dust-only simulation.
Here is my namelist.input:
namelist.input
(5.56 KiB) Downloaded 14 times
by woodllan
Tue Jan 26, 2021 2:40 am
Forum: Emissions
Topic: How to add dust tracers to determine source regions
Replies: 8
Views: 312

Re: How to add dust tracers to determine source regions

Sorry, I made a mistake...I plotted PM10 instead of dust. I saw some "background dust" when EROD is zero everywhere in the model domain. It is actually PM10 that is not dust. So my alternative method to track dust source regions worked (running WRF with one source region turned on at a time). But it...
by woodllan
Fri Jan 15, 2021 6:52 am
Forum: Emissions
Topic: How to add dust tracers to determine source regions
Replies: 8
Views: 312

Re: How to add dust tracers to determine source regions

Thank you, Jordan! Do you have an estimate of how much longer it will take if I create dust tracers for about 10 source regions? eg, will it double (or 10% more) the running time? I am experimenting with another alternative: run each testing case with erodibility turned on in one source region (erod...
by woodllan
Fri Jan 08, 2021 11:25 pm
Forum: Aerosols
Topic: Output AOD all zeros
Replies: 3
Views: 236

Re: Output AOD all zeros

Consulted Dr. Jordan Schnell from CIRES. AOD contains all zeros because in "WRF v4.2, AOD_OUT and AOD2D_OUT are not actually hooked up correctly - they are only initialized in phys/module_radiation driver.F." Instead, we can output the extinction coefficient as follows: "Set opt_pars_out = 1 in the ...
by woodllan
Tue Jan 05, 2021 8:39 pm
Forum: Emissions
Topic: How to add dust tracers to determine source regions
Replies: 8
Views: 312

How to add dust tracers to determine source regions

Dear Colleagues, Is there a way to determine the source regions of a certain dust event? eg, there is a high dust concentration at Location A at Time 1. Is there a way to find out where these dust particles are picked up from the ground and when? Something like adding a dust tracer? Do you guys have...
by woodllan
Thu Dec 24, 2020 2:06 am
Forum: Aerosols
Topic: Output AOD all zeros
Replies: 3
Views: 236

Output AOD all zeros

Dear colleagues, I am running WRF-chem with the aerosol settings of aer_opt = 1 and aer_op_opt = 2. However, all the output variables related to AOD contain all zeros. Would you please give me a hint about what could go wrong? Here is my namelist: namelist.input . Thank you very much & Happy Holidays!

Go to advanced search