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

MPAS tutorial questions about ungrid and SST data

ajrosales

New member
Hello everyone,

I would like to ask you some questions about the MPAS tutorial.

1. In the installation of the MPAS model, is it possible to find the ungrib program or is it necessary to install the WRF model previously to get the ungrib program?

2. Where is the resource of the SST data input? Should I use ungrib with the SST datasets or not?

Thanks for your time,

Alan
 
Alan,

Please see my answers below to you questions:

(1) Starting from WPSV4.3, a configure option, --nowrf, has been added to allow for configuration of the WPS without reference to a compiled WRF model. if you only need the ungrib component of the WPS, you can compile WPS with this option.

(2) Most of the reanalysis products like GFS, ERA5 etc include SST. When you run ungrib to extract variables from the reanalysis data, SST will be included in the intermediate file.

Hope this is helpful for you.
 
Alan,

Please see my answers below to you questions:

(1) Starting from WPSV4.3, a configure option, --nowrf, has been added to allow for configuration of the WPS without reference to a compiled WRF model. if you only need the ungrib component of the WPS, you can compile WPS with this option.

(2) Most of the reanalysis products like GFS, ERA5 etc include SST. When you run ungrib to extract variables from the reanalysis data, SST will be included in the intermediate file.

Hope this is helpful for you.
Dear Chen,

I have a question regarding the MPAS tutorial (MPAS Tutorial — Practice Session Guide) related to the generation of the sfc_update.nc file. Are the SST* files used for this purpose sourced from ERA5 data?

Additionally, could you please provide guidance on how to generate similar SST* files?

Thank you for your time and assistance.

Wei
 
Hi, Wei,

The website you posted is pretty old. Please see the latest website for MPAS practice:


The SST files we use for tutorial is from a different SST products (possibly from NOAA OI SST datasets).

To produce SST files for MPAS surface update, you only need to run ungrib.exe to process your global SST data. The method is same as that for producing intermediate file.
 
Top