ROPP PP 'Invert' calling tree - ROPP v4.0 (December 2009)

ROPP overview document

ROPP PP user guide document

ROPP IO user guide document

ROPP 1dVar user guide document

PRE-PROCESSOR 'invert' module calling tree

PRE-PROCESSOR 'occ' module calling tree

1D FORWARD MODEL module calling tree

2D FORWARD MODEL module calling tree

1DVAR module calling tree

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ropp_pp_invert_ tool						Program to perform processing of L1 and L2 bending angle RO data to ionospheric corrected bending angle and refractivity
|__	ropp_pp_read_config					Read configuration parameter file (if exists)
|__	ropp_io_read					Read input observation data
|__	ropp_pp_monotonous					Sort L1 and L2 impact parameters
|__	ropp_io_init					Initialise refractivity and bending angle data structures to contain observed data on standard grid
|__	ropp_pp_merge_profile					Interpolate data onto a standard output grid
|	|__	ropp_pp_interpol				Linear interpolation of data
|__	ropp_pp_linear_combination					Perform ionospheric correction by linear combination (if requested - set config%method="NONE").
|__	ropp_pp_linear_combination					Perform ionospheric correction by linear combination (non-optimised bangle).
|__	ropp_pp_smooth_profile					Filter L1 and L2 bending angles to derive smoothed profiles
|__	ropp_io_init					Initialise bending angle data structures to contain model data
|__	ropp_pp_search_model_refraction					Retrieve best-fit MSIS model bending angle profile (config%method="GMSIS")
|	|__	ropp_pp_interpol				Linear interpolation of data
|	|__	ropp_pp_bangle_MSIS				Calculate climatological bending angle profile for each month, lat, lon
|	|	|__	ropp_pp_read_MSIS			Read file of MSIS climatology spherical harmonic coefficients
|	|	|	|__	ncdf_open		Open netcdf file
|	|	|	|__	ncdf_getsize		Obtain variable dimensions
|	|	|	|__	ncdf_getvar		Read data
|	|__	ropp_pp_regression				Linear regression fit observations to MSIS bending angle profile
|	|	|__	ropp_pp_quasi_invert			Quasi-inverse of a matrix
|	|	|	|__	ropp_pp_invert_matrix		Invert matrix
|__	ropp_pp_model_refraction					Retrieve local MSIS model bending angle profile (config%method="MSIS")
|	|__	ropp_pp_refrac_MSIS				Calculate climatological refractivity profile for given month, lat, lon
|	|	|__	ropp_pp_read_MSIS			Read file of MSIS climatology spherical harmonic coefficients
|	|	|	|__	ncdf_open		Open netcdf file
|	|	|	|__	ncdf_getsize		Obtain variable dimensions
|	|	|	|__	ncdf_getvar		Read data
|	|__	ropp_pp_abel				Compute bending angle profile from refrac (LIN or EXP)
|__	ropp_pp_fit_model_refraction					Fit model to smoothed bending angle profile
|	|__	ropp_pp_interpol_log				Interpolate L1 bending angles to model grid
|	|__	ropp_pp_linear_combination				Rough ionospheric correction - linear comb L1 and L2 BA
|__	ropp_pp_ionospheric_correction					Ionospheric correction with statistical optimisation
|	|__	ropp_pp_interpol				Interpolate L1, L2 and model BA to homogeneous grid
|	|__	ropp_pp_filter				Smooth bending angles by optimal estimation filtering
|	|	|__	ropp_pp_quasi_invert			Quasi-inverse of a matrix
|	|	|	|__	ropp_pp_invert_matrix		Invert matrix
|	|__	ropp_pp_sliding_polynomial				Smooth bending angles by sliding polynomial filtering
|	|	|__	ropp_pp_regression			Linear regression fit observations to MSIS bending angle profile
|	|	|	|__	ropp_pp_quasi_invert		Quasi-inverse of a matrix
|	|__	ropp_pp_invert_matrix				Invert matrix
|	|__	ropp_pp_interpol				Interpolate neutral BA to L1 impact parameters
|__	ropp_pp_invert					Invert corrected BA profile to refractivity (LIN or EXP, if requested - set config%method="NONE")
|__	ropp_pp_invert_refraction					Invert corrected BA profile to refractivity using MSIS climatology to extend BA profile (method="MSIS")
|	|__	ropp_pp_model_refraction				Retrieve MSIS model BA profile above observations
|	|	|__	ropp_pp_refrac_MSIS			Calculate climatological refractivity profile
|	|	|	|__	ropp_pp_read_MSIS		Read file of MSIS spherical harmonic coefficients
|	|__	ropp_pp_invert				Invert corrected BA with MSIS profile to refractivity (LIN or EXP)
|__	ropp_io_roprof2roprof					Copy retrieved profiles to RO data structure
|__	ropp_io_write					Write output to ROPP format netCDF