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

Assimilation of MODIS AOD in WRFDA


New member

I was following the tutorial (Chapter 6: WRFDA) on how to use WRFDA until I reached the part of the available data to be used in WRFDA. Unfortunately, MODIS seems to be not on the list, and I am planning to use MODIS AOD to forecast air quality in WRF-Chem. I have read that it is possible to create your own input data for WRFDA, but I do not know where to start. Given, for example, a MODIS AOD NetCDF4 file.

Would it be possible to assimilate MODIS AOD in WRFDA? Also, would it also be possible to assimilate other available data, for example ground sensor measurements?

I have been trying to do the assimilation with Gridpoint Statistical Interpolation (GSI) to no avail; I have been following its tutorial (Case 9: Chem case: GSI analysis for WRF-Chem |, yet I always reach a segmentation fault, and it seems that GSI is no longer supported.