Southwest pacific no map_proj works Namelist.wps

[tolux]

I am trying to run a wrf model for TC in the southwest pacific in this geolocation (-5 to -55 lon) and (145 E to 170 W lon). Because this longitude goes through the 180, it is given problem to define, when try to define it the longitude goes reverse and run from 170 W to 140 E making my interest area empty. Please someone help with suitable map projection and how to define the ref longitude and others to capture my interested area.

to add to this,
when I set the domain using mercator and extend the longitude to cross 180, geogrid.exe run and when I try to visualize the geo_*.nc using python. for example If I just contour(landmask) I will see the domain I specify, however if I contourf(Xlat,xlong,landmask) it shows the other part and leave area of interest empty. Then when I try to run metgrid the error comes up as Pres at 200100 is missing (i=682 j=1) something like that.

Thank you

Tolux

 

[tolux]

when I tried to extend the longitude beyond the 180 degree, this happened. I have try using lat-lon map_proj as well. got similar problem

 

[William.Hatheway]

can you upload your namelist files?

 

[tolux]

can you upload your namelist files?

It is Part of those pictures above. Thank you

 

[tolux]

can you upload your namelist files?

Here is it

 

[Ioga Lazuardi]

for me this problem looks complicated, the maps will reverse if the set number of longitude above 165, it because it will cross international date line and will back to west,

actually i never try this, but you can check this site Pacific Northwest Mesoscale Model Numerical Forecast Information , this is for northwest pacific but i hope u can get any clue about lon lat setting from this site, the namelist.wps detail attach on this site to, you can check it, i hope this site can give you some clue to solve your problem

 

[tolux]

The error persists when it got to metgrid.exe

 

[William.Hatheway]

@tolux

Can you please attach the namelist files and all the rsl.out and rsl.error files in a .zip file and upload it. Photos really doesn't help

 

[Ioga Lazuardi]

can i know the dataset that you use for meteorological data while run ungrib? like gdas or gfs or era5 or other data? also your before do metgrid, can i know your ungrib process? like the output of ungrib (FILE (domain) (date) ), because looks like the model cant interpolate that data due to missing value on some level

 

[kwerner]

@tolux

As a test, I set up my namelist.wps to match yours, and there are no issues with the domain. I used the util/plotgrids_new.ncl script to plot the domain, and it looks as expected (see the attachment). I also ran all wps executables and didn't run into any errors. The metgrid error you're seeing is likely more related to the input data you've obtained to use for your case. If you are only grabbing a subset of data, often, due to the map projections, some data can be missing - especially along the edges. It is recommended to obtain the full global dataset to avoid such issues.