WRF - Science method

I am at the beginning of my scientific career and I am not very well-versed when it comes to the organisers of scientific conferences. I found information about the conference online as above. Did any of you have anything to do with this institution and is it not a fraud? Here is the link to the site: https://www.wrfconference.com/event/index.php?id=2466820

I will be very grateful for your help.

FIRE:crash: wrf: SUCCESS COMPLETE WRF. Fire has reached domain boundary.

-------------- FATAL CALLED ---------------

FATAL CALLED FROM FILE: <stdin> LINE: 152

crash: wrf: SUCCESS COMPLETE WRF. Fire has reached domain boundary.

-------------------------------------------

"rsl.error.0000" 105163L, 6095612C

Also I have these questions:

2.What king of level spacing should we employ above the PBL for such studies?

3.Also what should be the model top height for such studies? Is it really necessary to go above the tropopause.

I am new to both Ubuntu and WRF. It will be helpful if I can get a link for downloading and installing WRF in ubuntu. I am searching for links but so far I was unsuccessful. I have already installed VMware software and Ubuntu 22.04 in my desktop computer. However, I would be greatful if anyone can send me the steps to download and install WRF model.

Dear WRF-Chem users,

I am interested in acquiring knowledge regarding the use of the restart functionality inside the Weather Research and Forecasting (WRF) model. There are three domains in a nested structure, with sizes of 9, 3, and 1 km.

The whole duration of the run was allocated to a period of 19 days, with the initial 14 days designated for spin-up.

Could you please provide instructions on how to utilize the restart option? Furthermore, while checking the user guide, I discovered that it was inadequate in providing clear instructions to follow.

Could you kindly provide me with guidance in this matter?

Sincere regards,

I am trying to use ECMWF 10-days forecast data (https://data.ecmwf.int/forecasts/) as Initial & Boundary condition  in WPS.

Where can I find the Vtable.ECMWF for it?  The default/given Vtable.ECMWF inside WRF doesn't work for this newly published forecast data.

Hi everyone, I'm trying to convert WRF data to ARL format to run trajectories, using the Hysplit software. But, I have the next error:

child killed: segmentation violation

child killed: segmentation violation

while executing

"exec $exec_dir/arw2arl.exe $data_file >STDOUT"

(procedure "xtrct_data" line 37)

invoked from within

"xtrct_data $gdir $gbase"

invoked from within

".arwarch.bot.save invoke"

("uplevel" body line 1)

invoked from within

"uplevel #0 [list $w invoke]"

(procedure "tk::ButtonUp" line 24)

invoked from within

"tk::ButtonUp .arwarch.bot.save"

(command bound to event)

Previosuly, i converted the wrf data successfully!

Thanks

I'm trying to plot solar irradiance or GHI from WRF output. Is there any python script to visualize this ?

Direct simulator available or we have to calculate numerically.

Dear collegues,

i want to plot a contour of PBLH difference between 2 wrf-chem simulations. I have the netcdf means (attached files), and i want to draw contour of 95% significance levels, but the script did not work, can you give your suggestions please?

"Error: scalar_field: If the input data is 1-dimensional, you must set sfXArray and sfYArray to 1-dimensional arrays of the same length. warning:create: Bad HLU id passed to create, ignoring it"

i'm explecting a contour plot with Grey shaded areas indicate regions with less than 95 % significance.

I'm making a nested, high resolution simulation (~300m*300m) of WRF in the polar region. The existing static sea ice data is of low resolution and I want to update this static data with a satellite based high resolution data. I need to update the static field only for the inner domain.

How can I do it?

What are the best tools for the same?

Anything in particular I should be careful about?

Thank you in advance.

Hi,

I would like to initialize WRF over Indian region using NCEP reanalysis data. I haven't been able to find a user guide explaining the how to. I am not sure which dataset(s) I am supposed to download or what the steps are for this process.

Kindly help me out.

Hi,

I would like to generate background error using ensemble perturbation method. I am using WRF's genbe module. I am fairly new to modeling and I have no idea how to generate the ensemble outputs. Could someone please tell me the steps I have to follow to generate the ensemble outputs?

Thankyou.

1.- I need to extract data for a specific point (latitude and longitude) but I have tried it and it gives me the values for a node of the mesh.

How can I get that data?

2.- How can I make a precipitation map for each of the days considering convective and non-convective precipitation (RAINC and RAINNC) ?

File: wrfout_d01_2022-07-13_00_00_00

I hope you can advise me

Thank you

Regards.

Hi,

I am looking for examples of the use of AZURE cloud for doing WRF simulation. Do you use containers such as Docker or upload the model with a script each time?

Is there a variable with SST forecast up to 45 days ahead to initialize the WRF separately?

While running the "real" program in WRF I am getting error as shown here, please suggest me the solution. Also I am atttaching namelist files with screenshot. Suggest me solution ?

[shantij@master1 run]$ mpirun -np 1 ./real.exe

starting wrf task 0 of 1

[shantij@master1 run]$ tail rsl.error.0000

----- ERROR: The reference pressure is not monotonically decreasing

This tends to be caused by very high topography

(i,j) = 46 26 , topography = 6756.41504 m

k = 5 , reference pressure = 38784.3516 Pa

k = 6 , reference pressure = 38813.1172 Pa

-------------- FATAL CALLED ---------------

FATAL CALLED FROM FILE: <stdin> LINE: 1236

In the dynamics namelist record, reduce etac from 0.200000003

-------------------------------------------

application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

[shantij@master1 run] $

I have registered for conference well held in Singapore from 9-10 September 2019 

I want to ask if this event is a real event.

Name of event: International Conference on Applied Mathematics and Science (ICAMS-19) 

Organization: WRF CONFERENCE 

Date: 9th-10th SEP 2019

https://www.wrfconference.com/event/index.php?id=1011805

Best regards

Hi,

I would like to run a few numerical experiments with WRF where I change some initial conditions, for eg. the wind shear and study the effects it has on the simulation of various atmospheric parameters. Could someone please guide me as to how I can go about doing that? How can I change certain initial conditions to study their effect on the simultion?

Thankyou.

I used to run the idealized simulations using idealized mountains. This time I am trying to use real topography instead of idealized topography. I haven't got any tutorial or resources to do this even in the WRF user guide. Any help would be highly appreciated. Thanks in advance.

I am trying to compare the rainfall data measured at several met station locations with the netCDF output from WRF. I can create tslist for exact locations matching the met-mast lat/lon and generate the single point TS files. However, I am not convinced this may be the optimal way for comparison considering the assumptions and approximations in the cumulus and microphysics models and there can be deviations of few cells. Any suggestions or references will be appreciated.

Thanks.

For graphical display of WRF output data, there is NCL script, but i have not found any working script for converting data to text or other readable format. there are some softwares but they are need activation for use.

I have tried to test the P3 (MP = 50 and 51) scheme for Bangladesh. Simulations begin smoothly, but some time later it stops. There are no error messages shown anywhere. What could be the reason behind this?

I am looking for plotting the azimuthally averaged radius-height cross-section of simulated radial wind from WRF output.

If anyone knows how to do the same (or has a script), kindly share with me.

I trying to generate initial and boundary conditions using ERA5 data while running real.exe in WRF model. However, it ended with error message

I have provided P_TOP_request=5000

I am carrying out PBL parametrization sensitivity study. I am curious to know whether it is beneficial to carry out sensitivity study with WRF-Chem, or the results with WRF alone is sufficient.

My view is that WRF alone is sufficient, since the common part of advection-diffusion in both WRF and WRF-Chem will be same for the same PBL scheme.

Please give your views.

Hi,

I am trying to run WRF with three nested domains of resolutions 18km, 6km and 2km.

I need the extent of the outermost domain to be 80 degrees longitudinally, ie from east to west, and 55 degrees latitudinally.

Are there any constraints to be kept in mind while deciding the extents of the inner domains. For eg, should the extent be some ratio of the extent of the parent domain? For my case, since the domain ratio is 3, should my second domain have a longitudinal extent of at least 27 degrees?

Is there any constrain like that, or can we choose the sizes, ie, extents of our domains as per the location of our area of interest that we plan to study?

Are there any other things/ constraints/ rules we need to keep in mind while deciding the domain configuration?

Kindly help me out with these queries.

Thankyou!

Hi,

I am trying to run genbe for a domain with 3km resolution. Gen be fails in stage 2a with error 24 :

---------------------------------------------------------------

Run Stage 2: Calculate regression coefficients.

---------------------------------------------------------------

Beginning CPU time: Thu Dec 9 12:55:52 IST 2021

Ending CPU time: Thu Dec 9 12:55:52 IST 2021

---------------------------------------------------------------

Run Stage 2a: Calculate control variable fields.

---------------------------------------------------------------

Beginning CPU time: Thu Dec 9 12:55:52 IST 2021

Stage 2a failed with error 24

Can someone help me understand what the error is and how I can rectify it?

Thankyou!

Dear all members,

I am studying about WRF to compute weather's parameters.

So, I consider affording a reasonable-priced device so I can install WRF and explore it - as a NEWBIE!

I have questions like:

1/ Can WRF be installed on CentOS 7. I prefer CentOS to other kinds of Linux (like Mint, Ubuntu, RedHat or something like that)

2/ A mobile workstation (like Dell Precision 7510, 7710 with Xeon-cpu inside - JUST 4 CORES COMMONLY ) could run WRF model well, couldn't it. Actually, a MOBILE workstation like that has a powerful CPU inside. But I'm confused by the number of CORES, i think it should have some cores more for better performance.

(I would study on WRF 4.0 and later version, domain for about 200*200 for a specific region like a state of America [U.S.])

I really appreciate your help! Thanks for all!

Hi there all,

I am trying to put an eqn into the WRF Chem. In the module module_input_tracer; its like

my_tracer(...)=my_tracer(...)*(0.5**0.973)

it takes values between 10^-31 to 10^36

Any idea to solve it ?

Hi,

I have problem to choose i_parent_start and j_parent_start values in order to get the most inner domain to surround a given area/zone with wanted dimension (e.g: 10km*10km).

I want to compare collected data and that simulated using WRF.

Dear all,

I am trying to run WRF-Chem for the first time. I have been running WRF for several years now.

I have monthly CAMS global data, and I have no idea how to prepare these files to go into WRF-Chem.

I have a file called prep_sources_chem.inp but I am not sure if it's the right one to use.

Any help is much appreciated.

Many Thanks

Joana

I am using WRF 4.1 in simulating weather parameters for Indian Region (9km). Initially I have been facing issues in configuring WPS, ARW post due to server architecture (IBM power series). Now i would like to get the wrfout* in .grib2 format and extension

I would like to find out how can I install and run WRF-Chem. I am already able to design and run WRF experiments on my own. Any documentation videos on WRF Chem other than those in Google?

My question is back

I'm running the WRFV3.8,

I would like to have more vertical levels within the boundary layer.

I know the way of doing that. But I lack the ability to customize the vertical levels quickly. My main worry in the above is time-consuming.

How may I determine quickly that eta level 1 corresponds to 8m AGL without consuming time?

Then if I have to set, for example, 109 eta levels for my particular interest such as increasing the number of layers within the boundary layer, how to do that without consuming time?

Is there any way of generating them automatically?

I want to run WRF - ARW model for a small domain of 100X100 km at a grid size of 3X3 km or smaller for forecasting weather parameters, which will be used as an input in a crop simulation model to forecast crop yield.

I need to purchase the required hardware and software for it but I'm very confused of the requirements and specifications which are required for the purpose.

I seek help to answer the following questions:

(1) What is the minimum and optimum H/W specification required and available in the market (preferably in India).

(2) What Linux OS Version and other compilers that would required to be installed?

Thanks

Vinay Sehgal

Indian Agricultural Research Institute, New Delhi

I am interested in studying the effect of a mountain range on the intensity of low pressure. My question is: Is it possible to use WRF model to handle a hypothetical case that a certain mountain range does not exist and then get back to re-consider it again?

Dear All,

I am rarely facing this type of problem in one of my systems. I am using WRF-ARW model. The model is not producing the last time step. Say I am running the model for 10 days with 3 hours interval but at the last time step model stops and I am getting wrf_outfile also. Can anyone have any thought regarding this problem? I need suggestions from you.

Thank you in advance

Hi everyone,

I am trying running WRF using ICON-EU as input data instead of GFS. So far I've been able to edit the WPS properly in order to add the soil levels that ICON uses.

However, when running ./real.exe I got the following error:

Using sfcprs to compute psfc

----- ERROR: The reference pressure is not monotonically decreasing

This tends to be caused by very high topography

(i,j) = 1 1 , topography = 0.0000000E+00 m

k = 1 , reference pressure = 100000.0 Pa

k = 2 , reference pressure = 100024.0 Pa

-------------- FATAL CALLED ---------------

FATAL CALLED FROM FILE: <stdin> LINE: 1236

In the dynamics namelist record, reduce etac from 9.9999998E-03

-------------------------------------------

This is usually an error that raises with high topography, but as you can se, topography is 0m in my case. I am almost certain that the error raises because ICON vertical levels are reversed: as you can see in the attached image (WRF at the left part and ICON at the right), ICON assigns the first level (lev=1) to the top one and the last level (lev=61) to the surface layer, while GFS and WRF level assignment starts at the surface and ends at the highest desired level. How can I reverse the levels in the ICON grib2 files so I can remove this error?

Hi, I have been trying to run the WRF model for 24 hours over a month (September 2018). I am using three two way nested domains (9km, 3km and 1km) with 63 explicitly defined vertical levels over a part of peninsular India. My timestep is 30. I am getting cfl errors only on some days, while for others the model run is completed without any errors. I have used the same domains and other runtime options for the month of January, 2019 as well and had no issues there. What might be the issue here and how can I attempt to resolve it? Please help me out.

I have the next error:

Timing for Writing wrfout_d01_2014-01-24_00:00:00 for domain 1: 0.71017 elapsed seconds

open_aux_u : error opening auxinput5_d01_2014-01-24_00:00:00 for reading. 100

d01 2014-01-24_00:00:00 Input data processed for aux input 5 for domain 1

d01 2014-01-24_00:00:00 Input data is acceptable to use: wrfbdy_d01

Ignoring all time series locations beyond # 20. Increase max_ts_locs in namelist.input

Timing for processing lateral boundary for domain 1: 0.09578 elapsed seconds

Tile Strategy is not specified. Assuming 1D-Y

WRF TILE 1 IS 1 IE 40 JS 1 JE 20

WRF NUMBER OF TILES = 1

How much should I make coarser the eta_levels? the area of study includes altitudes from 3000 to 240 m.a.s.l.

&time_control

run_days = 3,

run_hours = 66,

run_minutes = 0,

run_seconds = 0,

start_year = 2014, 2014, 2014,

start_month = 01, 01, 01,

start_day = 24, 24, 24,

start_hour = 00, 00, 00,

end_year = 2014, 2014, 2014,

end_month = 01, 01, 01,

end_day = 26, 26, 26,

end_hour = 18, 18, 18,

interval_seconds = 21600

input_from_file = .true.,.true.,.true.,

history_interval = 60, 60, 60,

frames_per_outfile = 1000, 1000, 1000,

restart = .false.,

restart_interval = 7200,

io_form_history = 2

io_form_restart = 2

io_form_input = 2

io_form_boundary = 2

debug_level = 0,

/

&domains

time_step = 15,

time_step_fract_num = 0,

time_step_fract_den = 1,

max_dom = 3,

e_we = 81, 100, 100,

e_sn = 81, 97, 97,

e_vert = 44, 44, 44,

eta_levels = 1.0000, 0.9940, 0.9900, 0.9860, 0.9820,

0.9780, 0.9740, 0.9700,

0.9680, 0.9640, 0.9600, 0.9520, 0.9420,

0.9320, 0.9210, 0.9060, 0.8930, 0.8760,

0.8650, 0.8560, 0.8450, 0.8341, 0.8225,

0.8103, 0.7948, 0.7746, 0.7494, 0.7133,

0.6742, 0.6323, 0.5876, 0.5406, 0.4915,

0.4409, 0.3895, 0.3379, 0.2871, 0.2378,

0.1907, 0.1465, 0.1056, 0.0682, 0.0332,

0.0000,

p_top_requested = 3000,

num_metgrid_levels = 26,

num_metgrid_soil_levels = 4,

dx = 9000, 3000, 1000,

dy = 9000, 3000, 1000,

grid_id = 1, 2, 3,

parent_id = 0, 1, 2,

i_parent_start = 1, 13, 60,

j_parent_start = 1, 22, 48,

parent_grid_ratio = 1, 3, 3,

parent_time_step_ratio = 1, 3, 3,

feedback = 1,

smooth_option = 0

use_adaptive_time_step = .true.,

max_ts_locs = 20,

I have want to get wind map for a given region and compare with real data using WRF.

Hi,

I am trying to set up WRF model and I would like to specify explicit eta levels. My study will primarily be focused on storms and the boundary layer, so ideally, I would like to have very high resolution upto 3 km altitude. I am using three domains of 9km, 3km and 1km resolutions, with two way nesting. I am unaware of any thumb rules we need to follow or factors we need to keep in mind while deciding the vertical levels. Can you please educate me about them and help me out?

Also, I was told that, in case we don't want to specify eta levels, the number of vertical levels needs to be

Height of model top/ (0.1*Resolution of innermost domain)

Can you please help me understand why this is the case?

My model top will be around 20km (50 hPa), so if I go by this rule, I will end up using 200 vertical levels. Please help me understand why it is necessary to have these many levels.

Thankyou.

What is the best approach to simulate one year, for example, in WRF? I divided the simulations into 12 months, 52 weeks, or 5 days segments, as some papers have applied (but they did not justified this choice)? There is a best practice?

I am unable to find literature having acceptable rainfall performance criteria as is available for other parameters such as wind, temperature, etc. Is it correct to define a criteria based on the 90th or 95th or similar percentiles from the population of rmse, mean error values?

Dear all,

we are trying to improve the representation of land use information in the regional climate model WRF for 1. aquaculture and 2. rice paddies in the Mekong River region (Vietnam). The major question is which existing land use class (from MODIFIED_IGBP_MODIS_NOAH classification) corresponds best to those?

If none of the predefined classes is suitable, we could add new classes to the LANDUSE.TBL, but we would need the parameters from experiments or from literature, i.e. albedo (ALBD %), soil moisture (SLMO × 100%), surface emissivity (SFEM %), surface roughness length (SFZ0 × 10 −2 m), thermal inertia (THERIN × 4.184 × 10 2 J/m 2 Ks 1/2 ), and surface heat capacity (SFHC × 10 6 J/m 3 K) for aquaculture and rice paddies, respectively.

Thank you very much for all kind of helpful suggestions.

Cheers, Patrick

root@ubuntu-ideacentre-510S-07ICB:/home# sudo apt-get install libjasper-dev

Reading package lists... Done

Building dependency tree

Reading state information... Done

E: Unable to locate package libjasper-dev

Hi,

I need column integrated total aerosol optical depth at a specific location. For this, I used WRF-ARW model and added AODTOT in iofields_filename as a text file. I extracted the variable through ARWpost after running WRF. I got AODTOT

as constant field throughout the forecast period. If I want to get time varying AODTOT, what are the things I need to change?. Please help me regarding this.

One more doubt is, what is the difference between AODTOT, AOD5502D, AOD5503D?. Out of three, Which variable I need to to use to get total integrated aerosol optical depth at a specific location using WRF-ARW?

Waiting for your reply,

Thanks & Regards,

Malleswararao M

Hello!

I am trying to run WRF-CMAQ simulation to predict concentration of PM2.5 in Middle East domain. For WRF simulation, I need 6 hours raw data from a global climate model run based on A1B and A1Fi scenario but I can't find the data. I would appreciate it if you could help me to find proper data

Hi! I hope I worded the question properly.

I need to do multiple WRF runs for different experiments. Does anyone have an idea how to run multiple different instances of WRF from the same compilation?

My current set-up is I have a master copy of my successfully compiled WRF. which I copy multiple times depending on how many different simulations I want to run. My problem is this can get tedious, especially if I copy multiple folders many times, link my met_em*.nc files for each copied folder, and then edit the different namelist.input files.

I want to do a cleaner approach where I have a separate folder where my .nc files are located, another separate folder with my namelist.input, another folder for my outputs, while I only have one copy of WRF. This will also allow for automation of many instances of WRF.

Is this possible?

Thanks!

-BA

The error is

DYNAMICS OPTION: Eulerian Mass Coordinate

alloc_space_field: domain 1 , 273316856 bytes allocated

d01 2013-11-06_00:00:00 Yes, this special data is acceptable to use: OUTPUT FROM METGRID V4.2

d01 2013-11-06_00:00:00 Input data is acceptable to use: met_em.d01.2013-11-06_00:00:00.nc

metgrid input_wrf.F first_date_input = 2013-11-06_00:00:00

metgrid input_wrf.F first_date_nml = 2013-11-06_00:00:00

d01 2013-11-06_00:00:00 Timing for input 0 s.

*** Error in boundary condition specification

boundary conditions at xs 1

boundary conditions at xe 1

boundary conditions at ys 2

boundary conditions at ye 2

boundary conditions logicals are

periodic_x F

periodic_y F

symmetric_xs F

symmetric_xe F

symmetric_ys F

Am attaching rsl.error.0000 and namelist.input files. WPS was succesful.

Dear all,

I am trying to run the WRF-Chem model v3.7.1 with chem_opt = 132 (CB05+MADE/VBS) and fire emissions from FINN; however the model hangs up after a few hours of simulation with no error messages. I also tried to run the model setting debug_level to different values but it does not reveal where the problem could be. 

Thank you in advance for any help/comment you could provide

Angel

I am trying to calculate equivalent potential temperature (theta_e) from the WRF output. I tried using the formula mentioned in grads user, but the output is incorrect.

We are running WRF/Chem 4.5.1 with RADM2.

In the wrfchemi files, I am looking at the E_NH3, BIGALK and E_C3H6. In the wrf output file, there seems to be several variables related to VOCs, but I am looking only at 'ald', 'tol', and 'xyl'.

We are running two simulations, a control and a sensitivity scenario - in the latter, there were decreases in total pollutants emissions, including VOCs... However, I don't see much change in VOCs between the two simulations, neither in the emission files nor in the output files. If I look at other pollutants such as CO, NO2, etc. there is a change, but not for VOCs. I am not sure if I am missing something here.

Which variables in those files do you usually look into when you want to analyse the VOCs? I have limited chemistry knowledge so I wanted to hear from anyone who's got more experience.

Any comemnts or recommendations are appreciated!

I have an EDGAR emissions data-set. I would like to speciate the VOC emissions for CBMZ mechanism. Could anybody help? thanks

I am doing wrf simulation to study is there any impact of LULC on extreme precipitation. So I need to use Bhuvan's latest LULC data.

I want to run WRF-Real at higher resolution (100 m). For that I have to downscale WRF output data (1 Km).

I need to count the number of days with, for example, a temperature the threshold of >5° degrees, in a WRF-output with daily mean temperature values. Anyone knows or have a script example of how to do that?

Thanks in advance.

[shanti@master2 netcdf-4.1.3]$ make install

Making install in include

make[1]: Entering directory `/home/shanti/BUILD_WRF/LIBRARIES/netcdf-4.1.3/in clude'

make[2]: Entering directory `/home/shanti/BUILD_WRF/LIBRARIES/netcdf-4.1.3/in clude'

make[2]: Nothing to be done for `install-exec-am'.

test -z "/netcdf/include" || /usr/bin/mkdir -p "/netcdf/include"

/usr/bin/mkdir: cannot create directory ‘/netcdf’: Permission denied

make[2]: *** [install-includeHEADERS] Error 1

make[2]: Leaving directory `/home/shanti/BUILD_WRF/LIBRARIES/netcdf-4.1.3/inc lude'

make[1]: *** [install-am] Error 2

make[1]: Leaving directory `/home/shanti/BUILD_WRF/LIBRARIES/netcdf-4.1.3/inc lude'

make: *** [install-recursive] Error 1

I am trying to generate the be.dat file using the gen_be facility of WRF. I have 12 hour and 24 hour outputs from WRF at 00 UTC and 12 UTC for a month. When I try to run gen_be_wrapper.ksh on my system (which uses gfortran compiler) I get the following error for both the outer (8 km resolution) and inner(2 km resolution) domains.

---------------------------- FATAL ERROR -----------------------

Fatal error in file: gen_be_stage3.b LINE: 305

Could not open ps_u/2019040100.ps_u.e001

Can you please help me out here and tell me how this can be fixed?

Thankyou.

Hi all,

I am installing WRFV3-3.9.1 and WPS3.9.1 with intel (dmpar) compiler.

While compiling WPS, the following error is coming.

*************************************************************************************** Error : Not building geogrid. Check whether WRF is compiled in .../.../.../Build_WRF/WPS/...WRFV3 ***************************************************************************************...... *************************************************************************************** Error : Not building metgrid. Check whether WRF is compiled in .../.../.../Build_WRF/WPS/...WRFV3 *************************************************************************************** kindly, provide me the solution for the same.

Dear all,

I intend to use SST data for my WRF runs, but data are in binary format and I need to convert them to GRIB2 format. I appreciate if somebody with same experience help me solve the issue.

Thanks,

Hello Everyone I am Trying to run WRF model and incountering with an error while running WPS-metgrid.exe error is as below

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

! Successful completion of ungrib. !

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

dass@Tower:~/Build_WRF/WPS$ ./metgrid.exe

Processing domain 1 of 3

Processing 2019-11-03_00

FILE

ERROR: Error in ext_pkg_write_field

application called MPI_Abort(MPI_COMM_WORLD, 0) - process 0

I am using WRF V3.9 and Input data is GFS of FNL but error is same for both dataset

Please help me in this..

Hi, I am getting high dry bias for non local pbl schemes in WRF but temperature output is very good statistically compared to local schemes. What are the options for reducing this bias without changing the pbl scheme (maybe in dynamics options?). I would very much like your input as I have little experience with WRF yet.

Regards

Neeldip

I am using WRFV4 and I have successfully run ungrib, metgrid. But whenever I execute real.exe then its shows

"starting wrf task 0 of 1"

........

below I have attached namelist.input and scene print of the error.

Please have a look and provide me any fruitful solution.

I am trying to generate the track of a tropical cyclone using WRF. Initially I tried with basic WRF configuration with em_real compilation but didn't find any script to track down the cyclone path as em_real is not generating any vortex tracking data. So, I recompiled WRF with vortex follwoing & em_tropical_cyclone configuration. But the problem is, still my model isn't generating any ATCF data (or any vortex tracking data) & to be true I am now confused whether I am on the right track to generate those data. At present I am not focusing on forecast accuracy / track variations (will work on physics options later, currently focusing on generating the track data only). I am quite new in using WRF & it will be a great help if anyone can give me some insight on this issue on how to do it.

>. My namelist.wps & namelist.input files are attached below.

I'd like to use WRF output data to force a land surface model (HRLDAS). HRLDAS requires grib2 forcing data and I have so far been unable to convert from netcdf to grib. There are a number of tools that allow the conversion the other way (grib to netcdf).

I have tried using:

but get the following message:

Many thanks!

Trevor

I have scatterometer data (Ocean wind vector) and i want to assimilate in WRF-ARW

I have wrfout file with t=96

Now I need to convert observation file which is netcdf file into LITTLE_R format f