id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
98	New parameters for netCDF files	Dave Offiler	Dave Offiler	"DMI (and others) have requested additional parameters to be saved in the netCDF files
(we have previously decided to freeze the text format from any futher dveelopments). These being:

 - BA_smooth 
 - T_dry
 - BG_profile

The last is agreed not to be implemented, as the functionality exists in using the Level 2b part of the structure flagged as type BG instead of the default OC profile type.

T_dry is derived directly from N and is naturally on N-levels. It would be more appropriate to include this as an extra profile in Level 2a (N) than in Level 2b (T,q,P). Agreed with Kent.

BA_smooth could be added as a 4th BA profile in the Level 1b section, on the assumption that
it is smoothed onto exactly the same levels as the BA_corrected (unsmoothed) profile. Any reason why this shouldn't be implemented?

For consistency with other parameters, a 'thin_method' parameter should also be added to note the method used to thin the data (if applied), e.g. 'SG-247', 'SAMPLE-250', 'NONE' etc. This could just follow the templates for existing *_method parameters.

'''Recommendation:''' implement new parameters 'thin_method', 'BA_mooth' and 'T_dry' in appropriate sections of ROtype structure and include in I/O to netCDF (but not to text) files.
Must not break reading old files not having these parameters in them. 

Nice to have for ROPP-1, but not essential - perhaps as part of a 1.1 upgrade."	enhancement	closed	normal	1.1	ROPP (all)	1.0	fixed