Cloud Screening

Data Structures
struct	CloudScreen
	Cloud Screening Structure. More...

Functions
void	cloud_screen_free (CloudScreen *cloud_screen)
	Free a CloudScreen Structure.
CloudScreen *	cloud_screen_init (size_t ntimes, CloudScreen *cloud_screen)
	Initialize a CloudScreen Structure.
int *	cloud_screen_run (CloudScreen *cloud_screen)
	Alexandrov's Cloud Screening Algorithm.

---

Detailed Description

---

Function Documentation

void cloud_screen_free

(

CloudScreen *

cloud_screen

)

Free a CloudScreen Structure.

Parameters:

cloud_screen

- pointer to the CloudScreen structure.

Definition at line 61 of file Alexandrov_cloud_screen.c.

CloudScreen* cloud_screen_init	(	size_t	ntimes,
		CloudScreen *	cloud_screen
	)

Initialize a CloudScreen Structure.

The memory used by the returned structure is dynamically allocated and must be freed using the cloud_screen_free() function.

Parameters:

ntimes	- the number of times in the input data
cloud_screen	- pointer to the CloudScreen structure, or NULL to create a new CloudScreen structure.

Returns:

:

• pointer to the CloudScreen structure
• NULL if a memory allocation error occurred

Definition at line 92 of file Alexandrov_cloud_screen.c.

int* cloud_screen_run

(

CloudScreen *

cloud_screen

)

Alexandrov's Cloud Screening Algorithm.

Alexandrov, M. D., A. Marshak, B. Cairns, A. A. Lacis, and B. E. Carlson (2004), Automated cloud screening algorithm for MFRSR data, Geophys. Res. Lett., 31, L04118, doi:10.1029/2003GL019105.

Parameters:

cloud_screen

pointer to the CloudScreen structure, or NULL to create a new CloudScreen structure.

Return values:

cloud_flags

pointer to the array of cloud detection flags: -1 = input tau < 0.0 0 = no cloud detected 1 = point recaptured by envelope logic 2 = cloud detected (tau_prime <= 0.0) 3 = cloud detected (epsilon >= threshold)

Definition at line 155 of file Alexandrov_cloud_screen.c.