Search found 100 matches

by neel14
Fri Jun 18, 2021 6:03 am
Forum: wrf.exe
Topic: QCLOUD
Replies: 0
Views: 42

QCLOUD

Hi,
I just wanted to know if cumulus schemes contribute to QCLOUD, QRAIN variables or is it contributed only by microphysics scheme.

Thanks.
by neel14
Fri Jun 18, 2021 4:31 am
Forum: General
Topic: cloud droplet number estimation
Replies: 0
Views: 44

cloud droplet number estimation

Hi, I wanted to know how is cloud droplet number (QNDROP) estimated with morrisson microphysics (mp_physics=10) in wrf-chem in case of both chem_opt= 201 and 202, as 201 does not support indirect effects and 202 does. For wrf-chem the droplet number is defined on basis of nc1d in module_mp_morr_two_...
by neel14
Fri Jun 18, 2021 4:14 am
Forum: wrf.exe
Topic: nc1d variable
Replies: 0
Views: 32

nc1d variable

Hi, I wanted to know what does nc1d mean in module_mp_morr_two_moment.F. I am unable to relate the variable. The droplet number is defined on basis of nc1d. ! wrf-chem IF (flag_qndrop .AND. PRESENT( qndrop )) THEN qndrop(i,k,j) = nc1d(k) !jdf CSED3D(I,K,J) = CSED(K) END IF It would be of great help ...
by neel14
Tue Jun 15, 2021 5:19 pm
Forum: General
Topic: How is nc1d defined?
Replies: 1
Views: 53

How is nc1d defined?

Hi,
I wanted to know what does nc1d mean in module_mp_morr_two_moment.F.
The droplet number is defined on basis of nc1d.

! wrf-chem
IF (flag_qndrop .AND. PRESENT( qndrop )) THEN
qndrop(i,k,j) = nc1d(k)
!jdf CSED3D(I,K,J) = CSED(K)
END IF


Thanks..
by neel14
Fri Jun 11, 2021 6:59 am
Forum: General
Topic: WRF-Chem 4.3 crash
Replies: 5
Views: 652

Re: WRF-Chem 4.3 crash

HI, Can you try turning off emissions? I'm wandering about this line in your logs: mediation_integrate: med_read_wrf_chem_emissions: Open file wrfchemi_d01_2018-04-07_00:00:00 d01 2018-04-07_00:00:00 Error trying to read metadata I don't think that is the reason but please double check. Jordan Hi, ...
by neel14
Mon Jun 07, 2021 3:52 am
Forum: General
Topic: WRF-Chem 4.3 crash
Replies: 5
Views: 652

Re: WRF-Chem 4.3 crash

Hi,
Is there any update regarding the issue. Also wanted to let you know that I tried v4.3 real.exe to develop the input files which also did not work.
by neel14
Sat May 29, 2021 3:29 am
Forum: General
Topic: WRF-Chem 4.3 crash
Replies: 5
Views: 652

Re: WRF-Chem 4.3 crash

jordanschnell wrote:
Mon May 24, 2021 8:44 pm
Hi,

Can you pleae provide some more information (namelist and full rsl.out/error)?

Thank you.

Jordan
Hi,
I have attached the files.

Neeldip
by neel14
Sat May 22, 2021 6:49 am
Forum: General
Topic: WRF-Chem 4.3 crash
Replies: 5
Views: 652

WRF-Chem 4.3 crash

Hi, I am having trouble with running WRF-Chem 4.3 as it crashes after few moments. I have successfully run simulation with v4.2.1 using the same input data and namelist. There are no cfl or chemistry related errors. I only get segmentation fault error. Kindly let me know how can I get this resolved....
by neel14
Wed May 05, 2021 12:44 pm
Forum: General
Topic: AOD>0 with aerosol radiative feedback off
Replies: 5
Views: 546

Re: AOD>0 with aerosol radiative feedback off

So in both cases the AODs should be similar I suppose. Pardon my inexperience.
I had calculated the difference in the AOD between the two scenarios (ON vs OFF) and found large differences exceeding 50-60%. Didn't expect such large differences.
by neel14
Tue Apr 27, 2021 4:52 am
Forum: General
Topic: AOD>0 with aerosol radiative feedback off
Replies: 5
Views: 546

Re: AOD>0 with aerosol radiative feedback off

Hi Jordan,
It will be helpful if you could provide an update regarding the issue. Could you kindly point out the part of the code I should read from?

Thanks.
by neel14
Sat Apr 10, 2021 3:57 am
Forum: General
Topic: AOD>0 with aerosol radiative feedback off
Replies: 5
Views: 546

Re: AOD>0 with aerosol radiative feedback off

Hi Jordan,
My aer_op_opt was 5 but had set aer_ra_feedback = 0. Should not the aerosols be invisible to radiation in that case?
I had calculated AOD from TAUAER2 and TAUAER3, but EXTCOF55 is also non-zero.

Thanks.
by neel14
Fri Apr 09, 2021 4:50 pm
Forum: General
Topic: AOD>0 with aerosol radiative feedback off
Replies: 5
Views: 546

AOD>0 with aerosol radiative feedback off

Hi,
Is it possible to have AOD values > 0 when aerosol radiative effects are turned off?
I am getting such values, am perplexed.

Appreciate any help.

Thanks.
by neel14
Thu Apr 08, 2021 3:03 am
Forum: WRF Compiling/Installation
Topic: Why different compilers have different results for the same case?
Replies: 6
Views: 845

Re: Why different compilers have different results for the same case?

Hi,
Should we also expect different results for different versions of the same compiler (e.g intel 18 and 19)?

Regards
by neel14
Sat Mar 27, 2021 1:36 pm
Forum: General
Topic: Results dependency on cores
Replies: 1
Views: 436

Results dependency on cores

Hi,
My question is regarding the model outputs of wrf chem wrt the no of processors used. Do the outputs vary with no of cores?
I can check myself, but I guess someone would have thought and tested this before.

Thanks.
by neel14
Sat Jan 16, 2021 9:48 am
Forum: wrf.exe
Topic: Add EFFC variable to output
Replies: 5
Views: 323

Re: Add EFFC variable to output

EFFC shouldn't be a scalar variable. You need to understand the physical meaning of EFFC and how it works in the code. More important, you also need to understand how Registry works. For example, what does the code do with the definition of "ikjftb" for a state variable, and what variable should be...
by neel14
Tue Jan 12, 2021 4:50 pm
Forum: wrf.exe
Topic: Add EFFC variable to output
Replies: 5
Views: 323

Re: Add EFFC variable to output

Hello Ma'am, I have made some changes but getting error with solve_em.F solve_em.f90(4590): error #6460: This is not a field name that is defined in the encompassing structure. [EFFC] & ,EFFC=grid%EFFC) ------------------------------^ solve_em.f90(4385): error #8284: If the actual argument is scalar...
by neel14
Sun Jan 10, 2021 6:06 am
Forum: Running
Topic: Different spinup times
Replies: 4
Views: 658

Re: Different spinup times

Hi Neeldip, The first method is what you should try to use as yes, there are different variables in the restart vs. input file. As for step 4. If a file named "wrf_chem_input_d01" is in the run directory, with chem_in_opt = 1 and io_form_auxinput12 = 2, the model will use that file to initialize ch...
by neel14
Mon Jan 04, 2021 4:50 am
Forum: wrf.exe
Topic: Add EFFC variable to output
Replies: 5
Views: 323

Add EFFC variable to output

Hi everyone,
I want to output the cloud droplet effective radius (EFFC) from the Morrison scheme (mp_physics =10) to the wrf output. How should I proceed?
Kindly help me out. Any help is highly appreciated.
by neel14
Fri Jan 01, 2021 6:23 am
Forum: Running
Topic: Different spinup times
Replies: 4
Views: 658

Re: Different spinup times

Hi Jordan, I tried the alternate approach. If you compare the variables between the wrfchem input and wrfchem restart file, a lot of variables are missing in the input file. So if I append the variables from a chem input file to a wrf restart file, I dont think it would work though I haven't got a c...
by neel14
Sun Dec 27, 2020 3:55 pm
Forum: Running
Topic: Different spinup times
Replies: 4
Views: 658

Different spinup times

Hi,
Is it possible to use different spinup times for meteorology and chemistry? i.e I want to initialize the chemistry after some period of meteorology spinup.

Thanks.
by neel14
Mon Dec 21, 2020 4:51 am
Forum: Chemistry-meteorology Interactions
Topic: Error with ACM2 pbl
Replies: 7
Views: 1115

Re: Error with ACM2 pbl

Hi @mriganka and @neel14, @neel14 - to answer your previous question - the difference between the ACM scheme and others is that vertical mixing of chemical species (and deposition) is done inside the ACM pbl scheme. For other pbl schemes, vertical mixing is done in the dry deposition driver by usin...
by neel14
Tue Dec 08, 2020 1:36 pm
Forum: Running
Topic: Request help in tracing error
Replies: 2
Views: 596

Re: Request help in tracing error

Hi Jordan,

Thanks for your time and suggestion with the time step. I found that the other one "fm( 1 1 )= 1.000000 outside fn,1 - activate err22" is coming from module_mixactivate.F in phys, line #2103 or line #2468. Not sure which one though.

Neeldip
by neel14
Sun Dec 06, 2020 10:44 am
Forum: Running
Topic: Request help in tracing error
Replies: 2
Views: 596

Request help in tracing error

Hi, I am running with chem_opt=202. The run completes successfully but has these outputs in the rsl.out files. I haven't been able to find the reason for these outputs. Have looked at the modules but not sure why these should occur. Kindly provide your insights. Please see line #25629 and #25646 of ...
by neel14
Thu Oct 22, 2020 4:56 am
Forum: Running
Topic: Cumulus scheme support
Replies: 5
Views: 892

Re: Cumulus scheme support

Thanks Jordan!
by neel14
Wed Oct 21, 2020 3:30 am
Forum: Running
Topic: Cumulus scheme support
Replies: 5
Views: 892

Re: Cumulus scheme support

Hi,
Can you share the link to the code?
I looked at https://github.com/wrf-model/WRF/tree/develop and https://github.com/wrf-model/WRF/tree/release-v4.2.2 but it is isn't implemented yet. Maybe I am looking at the wrong place.

Neeldip

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