#include <vector>
#include <map>
#include <netcdf>
#include <math.h>
#include <allocate2d.h>
#include "l12_proto.h"
#include "polcor_oci.h"

Include dependency graph for polcor_oci.cpp:

Functions
void	getPolarizationCoefs (NcVar &ncVar, vector< vector< float >> &aggVec, int start, int stop, int numPolCoef, int currHamSide)

void	initializePolCorOci (NcFile &ncFile)

void	getScanAngleForScan (NcFile &ncFile)

void	getQualSwirForScan (NcFile &ncFile)

bool	areHighGainBandsSaturated (int currPix)

void	calculateAndSetPolCor (l1str *&l1rec, int currPix, int index, vector< float > m12Coefs, vector< float > m13Coefs)

void	polcor_oci (l1str *l1rec, int32_t currPix)

Function Documentation

◆ areHighGainBandsSaturated()

bool areHighGainBandsSaturated ( int currPix )

Grab the current lines quality flag for SWIR bands. Check the high gain bands (3 and 6) for saturation.

Parameters

currPix - current pixel

Returns: true if at least 1 is saturated, false if not.

Definition at line 242 of file polcor_oci.cpp.

◆ calculateAndSetPolCor()

void calculateAndSetPolCor	(	l1str *&	l1rec,
		int	currPix,
		int	index,
		vector< float >	m12Coefs,
		vector< float >	m13Coefs
	)

Calculates the polarization correction for the current pixel and sets it to index.

Index is the relative position of the current pixel to the polcor array, which has size numBands * numPixels for the current scan.

Calculate the value of m12 and m13 using the Second Degree Polynomial Function: Ax^2 + Bx + C, where: A = coef[2], B = coef[1], C = coef[0], x = ccd scan angle

Definition at line 267 of file polcor_oci.cpp.

◆ getPolarizationCoefs()

void getPolarizationCoefs	(	NcVar &	ncVar,
		vector< vector< float >> &	aggVec,
		int	start,
		int	stop,
		int	numPolCoef,
		int	currHamSide
	)

Given an NcVar reference to a blue or red M12 or M13 Coef, get all the coef. for the bands specified and append them to an array that is aggrigating the blue, red and SWIR M12 and M13 coefs.

Parameters

ncVar	- Ref to the band variable from NetCDF
aggVec	- vector to put the coefs
start	- start range for bands to be read
stop	- stop range for band to be read
numPolCoef	- number of polorization coef that is being read
currHamSide	- ham side that the coef is on

Definition at line 55 of file polcor_oci.cpp.

◆ getQualSwirForScan()

void getQualSwirForScan ( NcFile & ncFile )

For each new line, get the line's SWIR quality flag for low and high gain bands for all pixels. The quality flag describes the bands saturation (T/F) for pix. low gain bands = 2, 5 high gain bands = 3, 6

Parameters

ncFile - ref to the current opened NC file.

Definition at line 196 of file polcor_oci.cpp.

◆ getScanAngleForScan()

void getScanAngleForScan ( NcFile & ncFile )

For each new line, get the CCD scan angle for all pixels

Definition at line 167 of file polcor_oci.cpp.

◆ initializePolCorOci()

void initializePolCorOci ( NcFile & ncFile )

Function that grabs the m12 and m13 variables and set them in the static variables above for all scans. It also grabs static dim values that will be used for the duration of the program.

Parameters

ncFile - reference the opened NetCDF file

Definition at line 92 of file polcor_oci.cpp.

◆ polcor_oci()

void polcor_oci	(	l1str *	l1rec,
		int32_t	currPix
	)

For the current scan, grab and merge the blue and red m12 and m13 bands. Also grab the swir bands based on saturation (max 2). Then, for every band, apply the polarization correction for currPix

Parameters

l1rec	- L1B file – contains the current scan line this pixel belongs to
currPix	- current pixel to apply polcor

Definition at line 314 of file polcor_oci.cpp.

Functions

Function Documentation

◆ areHighGainBandsSaturated()

◆ calculateAndSetPolCor()

◆ getPolarizationCoefs()

◆ getQualSwirForScan()

◆ getScanAngleForScan()

◆ initializePolCorOci()

◆ polcor_oci()