I am currently using MPAS-JEDI to perform 3DVar data assimilation for a regional forecast, but I am unable to find suitable static BE (background error covariance) files for my domain（15km， 1000km radius domain）. The tutorial doesn't seem to provide instructions for generating background error covariance by myself, and my current computing resources cannot support using ensemble forecasting。
I noticed that the NMC method can be used to generate BE files, but I'm curious whether mpasjedi_error_covariance_toolbox.x supports using regional forecast outputs as input. Additionally,I got fatal error without log*.err file when I run BJ' programs using regional f48-f24 result cutting from global domain. there seems to be an issue with computing stream functions in regional configurations？
I also noticed some researchers use interpolation methods to downscale coarse-resolution BE (e.g., 60km) to their regional domains. I'd like to seek assistance on this approach.
I noticed that the NMC method can be used to generate BE files, but I'm curious whether mpasjedi_error_covariance_toolbox.x supports using regional forecast outputs as input. Additionally,I got fatal error without log*.err file when I run BJ' programs using regional f48-f24 result cutting from global domain. there seems to be an issue with computing stream functions in regional configurations？
I also noticed some researchers use interpolation methods to downscale coarse-resolution BE (e.g., 60km) to their regional domains. I'd like to seek assistance on this approach.