eta layer height

[yuankw]

Hello admins, I'm having some problems with tslist during the simulation, the elevation(30.5m) in the title row (first row) of the tslist file, is different from the height of the center of the first layer of the mesh in the vertical direction (I've turned on the unstagger option). Also, the PH in the tslist.PH file doesn't match the height value of the center of the grid in each layer, how should I understand this? Finally, are the U,V in the tslist.TS file the interpolated wind speeds for east-west and south-north directions?

I would also like to confirm that the PH and PHB of the first layer are 33.93924 and 490.255 respectively, model height=26.71734, and the model height calculated from them is the height of the center of the first layer grid above the ground, right?

Thank you very much!

 

[Ming Chen]

Please see my answers below:

Hello admins, I'm having some problems with tslist during the simulation, the elevation(30.5m) in the title row (first row) of the tslist file, is different from the height of the center of the first layer of the mesh in the vertical direction (I've turned on the unstagger option).

elevation in the first row of tslist gives the terrain height of the station where you output time series. It is not the model level height.

Also, the PH in the tslist.PH file doesn't match the height value of the center of the grid in each layer, how should I understand this? Finally, are the U,V in the tslist.TS file the interpolated wind speeds for east-west and south-north directions?

PH in tslist file is geopotential height at the location you specified. It is determined based on model values at the nearest grid to the location.
U and V are zonal and meridional wind components.

I would also like to confirm that the PH and PHB of the first layer are 33.93924 and 490.255 respectively, model height=26.71734, and the model height calculated from them is the height of the center of the first layer grid above the ground, right?

PH + PHB gives you the geopotential of each model level. Note that it is on the full model level. If you mean half-model level by saying "the center of the first layer", then it is not correct.

Thank you very much!

 

[yuankw]

Hi Chen, I apologize for not replying to your message for a long time.

elevation in the first row of tslist gives the terrain height of the station where you output time series. It is not the model level height.

This is a topographic elevation you are talking about, but I extracted the HGT of the corresponding coordinates and found that they are not equal, can you tell me why that is?