Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

Different vertical levels in height

H

htan2013

Member
Dear all experts,

I am wondering how to unify the vertical levels for all domains. The current eta levels I set are:

eta_levels = 1., 0.999461463, 0.999281951, 0.999102439,
0.998922927, 0.998743415, 0.99748677,
0.996230185, 0.994973600, 0.993716955, 0.992334723,
0.990814209, 0.989141703, 0.987301886, 0.985278130
0.983051956, 0.980603218, 0.977909565, 0.974946558,
0.971687257, 0.968101978, 0.964158237, 0.959820092,
0.955048144, 0.949799001, 0.944024920, 0.937673509,
0.930686891, 0.923001587, 0.914547801, 0.905248582,
0.895019472, 0.883767486, 0.871390283, 0.857775331,
0.842798889, 0.826324821, 0.808203340, 0.788269699,
0.766342700, 0.742223024, 0.715691328, 0.68650645,
0.654403150, 0.619089544, 0.580244482, 0.537514985,
0.490512520, 0.438809812, 0.381936818, 0.319376528,
0.250560224, 0.174862280, 0.091594524, 0.000000000,

which is from 2.8m to 577m for first 10 layers by my calculation. The wrfout file for domain 1 has the level height number correctly but for domain 3, the numbers are totally different (see attached). I have used options something like eta_levels(1:35) for d01 and (36:81) for d03 but it didn't work, generating the same results. I have attached the NC file and namelist here. Appreciate any help with this.

Thank you,
HT
 

Attachments

  • Level_Height_D01.txt
    594 bytes · Views: 11
  • Level_Height_D03.txt
    594 bytes · Views: 7
  • namelist.input
    5.2 KB · Views: 7
PH and PHB are 4-D variables. In your Level_Height files, you only list values in a single column. So my questions are:
(1) Did you list domain-average values?
(2) Did you change the unit from m to km?
I ask this because the values look unreasonable. Please clarify.
 
Ming Chen said:
PH and PHB are 4-D variables. In your Level_Height files, you only list values in a single column. So my questions are:
(1) Did you list domain-average values?
(2) Did you change the unit from m to km?
I ask this because the values look unreasonable. Please clarify.
Click to expand...
Yes, these are domain-averaged values and they are in meters. I calculated the domain averaged (ph+phb)/9.8.
 
The height of model levels varies with integration time and they are not necessarily be same for different domains.
However, the values shown in your Level_Height files are unreasonably low if the unit is 'meter'.
If your case ran successuflly, I don't think anything wrong in the model itself. It could be that your calculation is wrong. Please double check.
 
You must log in or register to reply here.
Top