ROPP

This is the feature request, issue and bug tracking web site for the Radio Occultation Processing Package (ROPP).

ROPP is a software package designed to assist users to assimilate radio occultation data from any RO mission into NWP and other models. The package is being developed through the EUMETSAT ​GRAS SAF.

The latest full release of ROPP (ROPP-6 v6.0) is currently available for users via the ​GRAS-SAF web pages. A minor update to ROPP-6 (v6.1) is currently under development and is expected to be released to users before the end of 2012. The next full release, ROPP-7 (v7.0) is expected to be released to users towards the end of 2013.

The ROPP deliverable source code is sub-divided into modules:

• ropp_tools : low-level utility routines
• ropp_io : I/O support for RO data in netCDF and BUFR files
• ropp_pp : preprocessor to derive refractivity and bending angle profiles from excess phase and amplitude ​calling tree
• ropp_fm : forward models (and associated tangent linear, adjoint & gradient code) ​calling tree
• ropp_1dvar : 1D-Var retrieval & minimizer ​calling tree

Supporting modules for documentation, testing and building the source are:

• ropp_doc : user and project documentation for ROPP
• ropp_test : 'Test Folder' system
• ropp_bld : build and configure scripts for ROPP and dependency packages

Further information on ROPP, including the Release Notes, Overview and module User Guides, is available from ​GARF.

The ROPP Repository

This ROPP Repository can only be accessed by authorized developers - ​login required.

For instructions on how to access the ROPP repository (authorized users only) see the ​instructions for developers.