Search results

Thank you for your answer. Now I understand well. Thank you!!!!!

Thank you for your answer! You said that the longer the integration period, the more data you generate, but if you say more data here, can you tell me exactly what data you have? For example, can I say that more accurate data is generated when run_hours=10 than when run_hours=5?

Thank you for your answer! However, I ask you one more time because I don't understand. As you said, if you perform WRF with 00:00 input data on January 1, 2021, whether run_hours=5 or run_hours=10, the 00:00 data on January 1, 2021 does not change, but the longer the run_time, the more data you...

Hi, What does it mean to use run_time in &time_control in namelist.input? For example, what does it mean to change run_seconds from 5 seconds to 10 seconds in all the same conditions, with input from 00:00 on January 1, 2021? Is it true that you mean a change from a result at 00:05 on January...

Thank you for the response! Does having different compiler and library versions lead to significant variations in results? I'm curious about the extent of sensitivity to compiler and library versions.

Hi, If a user provides the same terrain data, weather data, namelist.wps, and namelist.input options, would the wrfout_d0* files generated when running WRF always be identical?

Hi. When using WRF, the following error occurs as real.exe is performed. Can you tell me what the cause is? I attached the namelist.input file. Thank you!

Please provide information on the files or relevant settings that can handle the vertical velocity(W) high-resolution processing in WRF. Note that high-resolution processing of vertical velocity refers to an increase in the number of vertical velocity points at specific isobaric surfaces.

Is there anyone who can help me?

If W=0 is a valid value, why does W get 0 at the same position at all levels? (1000mb,950mb... 70mb) My guess is that the more oceans are included in the nesting area, the more this happens. Can you tell me why? Thank you.

When I printed out W(vertical velocity), it came out as attached csv file. However, at certain parts of all levels, the value appears to be zero as if it were missing. Can I know why or how to solve it?

And I have another question. How does W exist in the "wrfout_* " file when W (vertical velocity) is not included in the Vtable? I don't understand how it's calculated.

Hi, Why doesn't metgrid name have vertical velocity(W) in Vtable.GFS, Vtable.ECMWF? The reason why only U and V are included except for W is that WPS and WRF basically only consider horizontal direction? Thank you!

Thank you! Can you tell me exactly which paragraph to look at in the attatched file?

Hi, After setting e_we = 131, e_sn = 131, and e_vert = 24 in the namelist.input, the results obtained were confirmed by matlab. Why aren't rows and columns of U,V,W equal to 131? Also, aren't the dimensions of U,V and W equal to 24? Thank you!

Is vertical nesting of U,V done by interpolation in wrf.exe or real.exe? (In this case, do we interpolate based on input data?) Or is it done through atmospheric mechanics or physical equations?

How do I perform vertical high resolution using WRF? Dose the WRF calculate vertical high resolution with atmospheric mechanics and equations? or is it done by interpolation?

Hi, It was understood that high resolution in the horizontal direction, i.e., in the dx, dy direction, is high resolution by atmospheric mechanics and equations. However, I understood that high resolution in the vertical direction, that is, the dz direction, is done by interpolation, right? It...

Hi. I want to print 24 isobaric level wind speed data U and V. So I set the namelist.wps, namelist.input as follows. (I attached the namelist.wps, namelist.input, wrfpress_d02_2022-05_00:00:00 that I used.) &diag p_lev_diag = 1 num_press_levels = 24 press_levels = 100000, 97500, 95000, 92500...

Hi, I want to get U,V values at 24 isostatic levels (100000Pa, 97500Pa, ...). In other words, U for 100000Pa, U for 97500Pa, and V for 97500Pa I read the WRF manual and it comes out as below, can I get wind speed data at the iso-pressure level I want with the &diag and auxhist23 settings...