ctfilter.c File Reference

Functionality for identifying and removing residual non-precipitation echoes in Cartesian radar products, using the standard SAF-NWC cloud-top product from EUMETCAST in HDF5. More...

#include "ctfilter.h"

Functions
int	ctFilter (Cartesian_t *product, Cartesian_t *ct)
	Filters product with cloud-top information.

Detailed Description

Functionality for identifying and removing residual non-precipitation echoes in Cartesian radar products, using the standard SAF-NWC cloud-top product from EUMETCAST in HDF5.

Author

Daniel Michelson, SMHI

Date

2014-03-25

Function Documentation

ctFilter()

int ctFilter	(	Cartesian_t *	product,
		Cartesian_t *	ct )

Filters product with cloud-top information.

A quality field is created and added to the input product, containing removed echoes. Pixel values are from the CT product header. Probabilities of rain from: Dybbroe et al. 2005: NWCSAF AVHRR Cloud Detection and Analysis Using Dynamic Thresholds and Radiative Transfer Modelling. Part II. Tuning and Validation. J. Appl. Meteor. 44. p. 55-71. Table 11, page 69. Yes, we know the article addresses AVHRR and we are addressing MSG ...

Parameters

[in]	product	- input Cartesian image product
[in]	ct	- input Cartesian cloud-type product

Returns

int 1 if image is filtered, otherwise 0