number of particles in STILT emulation mode
number of particles in STILT emulation mode
It seems like when I run the dispersion model in STILT emulation mode, I wind up with only 720 particles. The reason I'm running in this mode is that I want to output the particle locations as ASCII data, but it seems like I'm locked into 180 particles per hour of emission. When I comment out the ICHEM variable in the .sh script, I get the proper number of particles.
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ariel.stein
- Posts: 660
- Joined: November 7th, 2012, 3:14 pm
- Registered HYSPLIT User: Yes
Re: number of particles in STILT emulation mode
What is the number of particles (NUMPAR) you are releasing?
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ariel.stein
- Posts: 660
- Joined: November 7th, 2012, 3:14 pm
- Registered HYSPLIT User: Yes
Re: number of particles in STILT emulation mode
Also, can you please send me your CONTROL and SETUP.CFG ?
Re: number of particles in STILT emulation mode
I sent an email and I should have posted this info on the forums. Sorry about that.
NUMPAR = 500
Files are attached. It seems like deposition is not included when I run in STILT emulation mode.
NUMPAR = 500
Files are attached. It seems like deposition is not included when I run in STILT emulation mode.
- Attachments
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- wetdry_2u_nostltSETUP.txt
- SETUP for non-stilt run
- (147 Bytes) Downloaded 311 times
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- wetdry_2u_stltSETUP.txt
- SETUP for stilt run
- (168 Bytes) Downloaded 269 times
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- wetdry_2u_nostlt_CONTROL.txt
- CONTROL file for non-stilt run (same as stilt run)
- (765 Bytes) Downloaded 282 times
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ariel.stein
- Posts: 660
- Joined: November 7th, 2012, 3:14 pm
- Registered HYSPLIT User: Yes
Re: number of particles in STILT emulation mode
You are getting a different number of particles because the time step is different in each run. The STILT emulation mode forces the time step to 1 minute.
Also, when you setup your run to emulate the STILT mode, each particle's mass is set to a constant value determined by NUMPAR.
For your particular runs you will need to increase the NUMPAR. A low number of particles will give you a very noisy concentration/footprint field.
On the other hand, deposition is not included because this module was originally developed for gases such as CO2 or CH4. I am not aware of any applications using aerosols.
Also, when you setup your run to emulate the STILT mode, each particle's mass is set to a constant value determined by NUMPAR.
For your particular runs you will need to increase the NUMPAR. A low number of particles will give you a very noisy concentration/footprint field.
On the other hand, deposition is not included because this module was originally developed for gases such as CO2 or CH4. I am not aware of any applications using aerosols.