Hi
I extract ensemble model data from a MARS repository using a "thin" client - meaning that ALL ensemble runs are packed into the one grib file, for all time steps and all levels.
I don't know enough about the underlying grib file structure to understand if there is an ensemble number identifier. If so an operator such as ..
splitensemble
Split ensembles
Splits a file into pieces, one for each ensemble member. xxx will have three digits with the ensemble number.
would be great. A companion selection operator might be might be:
selensemble
Select ensemble by ensemble number
Select all ensembles with ensemble number identifiers in a user given list.
This is of course predicated on there being a ensemble identifier. If not, then assuming that the ensemble runs, parameters and levels are regularly ordered within the file structure (which they appear to be - but appearances can be deceptive!) I would like to be able to select based on order within the file that is identified in the first column of an "infon" request. Such a command might look like ..
selposition
Select fields(s) by position number (order within the grib file)
Select all fields with position number in a user given list.
Any assistance would be greatly appreciated!!
Regards
Grant Elliott
