#include <DtAlgorithm.h>

Inheritance diagram for DtAlgLand:

Collaboration diagram for DtAlgLand:

Public Member Functions
	DtAlgLand ()

	~DtAlgLand ()

int	initialize (map< string, ddata * > imap)

vector< string >	get_products ()

map< string, ddata * >	process (vector< size_t > start, vector< size_t > count, map< string, ddata * > imap)

Public Member Functions inherited from DtAlgorithm
	DtAlgorithm ()

virtual	~DtAlgorithm ()

int	compute_gas_correction ()

int	fit_line (float x[], float y[], float sig[], int ndata, float &A, float &B)

Public Member Functions inherited from DDAlgorithm
	DDAlgorithm ()

virtual	~DDAlgorithm ()

Public Attributes
dtLandAerosolLUT	lut_

DtCloudMaskLand *	cm_

int	season_

float	scatter_angle_

int	mtable_ [NLSIZE]

float	refl_ray_nl_ [NLWAV]

float	opth_nl_ [NLSIZE][NLWAV][NLTAU]

float	int_nl_ [NLSIZE][NLWAV][NLTAU]

float	fd_nl_ [NLSIZE][NLWAV][NLTAU]

float	t_nl_ [NLSIZE][NLWAV][NLTAU]

float	fdt_nl_ [NLSIZE][NLWAV][NLTAU]

float	sbar_nl_ [NLSIZE][NLWAV][NLTAU]

float	refl_inter_ [NLWAV][GRIDX *GRIDY]

float	refl_ [NLWAV]

float	sdev_ [NLWAV]

short	error_

float	rho_star_ [NLSIZE][NLWAV][NLTAU]

float	rho_star_tot_ [NLWAV][NLTAU]

float	rho_S212_ [NLSIZE][NLTAU]

float	rho_S212_tot_ [NLTAU]

float	errwave_ [NLWAV]

float	rho_S466_

float	yint_466_

float	slope_466_

float	rho_S644_

float	yint_644_

float	slope_644_

short	eta_flag_

float	aot_d_ [NLWAV]

float	aot_f_ [NLWAV]

float	aot_c_ [NLWAV]

float	rho_sfc_ [NLWAV]

float	eta_

float	err644_

float	masscon_

float	angstrom_

float	ndvi_

short	iaer_

int	good_pixels_ [NLWAV]

int	num_pixels_used_

short	iproc_

short	ifinish_

float	thresh_min_

float	thresh_max_

short	return_quality_cirrus_

short	success_ret_

short	fail_ret_

short	quality_flag_for_joint_ [2]

short	quality_flag_for_retr_

short	qcontrol_special_

short	sds_qcontrol_ [QA_LAND]

short	sds_aerosol_type_

float	sds_scat_angle_

float	sds_fitting_error_

float	sds_mass_conc_

float	sds_cloud_fraction_

float	sds_angs_coeff_

float	sds_dust_weighting_

float	sds_ndvi_

float	sds_numpixels_ [NLWAV]

float	sds_tau_corrected_ [NLWAV]

float	sds_refl_ [NLWAV]

float	sds_refl_std_ [NLWAV]

float	sds_tau_small_ [NLWAV]

float	sds_tau_big_ [NLWAV]

float	sds_surface_reflectance_ [NLWAV]

Public Attributes inherited from DtAlgorithm
dtGasCorrectionLUT	gc_lut_

unsigned char	cmask_

float	rfld_ [NUM_RFL_BANDS]

float	cloud_fraction_

float	scatter_angle_

float	glint_angle_

float	glint_refl_

float	ndvi_

Static Public Attributes
static constexpr int	NLTHET0 = 11

static constexpr int	NLTHE = 15

static constexpr int	NLPHI = 16

static constexpr int	NLWAV = 4

static constexpr int	NLTAU = 7

static constexpr int	NLTABLE = 5

static constexpr int	NLETA = 13

static constexpr int	NLSIZE = 2

static constexpr int	DTABLE = 5

static constexpr float	THR213MIN_1 = 0.01

static constexpr float	THR213MAX_1 = 0.25

static constexpr float	THR213MIN_2 = 0.25

static constexpr float	THR213MAX_2 = 0.25

static constexpr float	PRESSURE_P0 = 1013.0

static constexpr float	DLAT = 0.5

static constexpr float	DLON = 0.5

static constexpr int	QA_LAND = 5

Static Public Attributes inherited from DtAlgorithm
static constexpr int	LINE = 1

static constexpr int	GRIDX = LINE

static constexpr int	GRIDY = LINE

static constexpr int	NUM_CASES_SMALL = 4

static constexpr int	NUM_CASES_BIG = 5

static constexpr int	NUM_LUTS = 4

static constexpr int	NUM_LATS = 180

static constexpr int	NUM_LONS = 360

static constexpr float	MINMTHET0 =0.0

static constexpr float	MAXMTHET0 =80.0

static constexpr float	MINMTHET =0.0

static constexpr float	MAXMTHET =72.0

static constexpr float	MINMPHI =0.0

static constexpr float	MAXMPHI =180.0

static constexpr float	MAXTAU =5.0

static constexpr float	MINTAU =-0.01

static constexpr int	NUM_RFL_BANDS = 10

static constexpr int	DT_OWAVES = 7

static constexpr int	DT_LWAVES = 3

static constexpr int	MODIS_WAVES = 7

static constexpr int	VIIRS_WAVES = 3

static const float	wind_ [WIND_LUT_ENTRIES]

static const float	pressure_ [P_LEVELS]

Protected Member Functions
int	index_geometry (float sza, float azim, float phi)

int	interpolate_rayleigh ()

int	interpolate_angle ()

int	interpolate_elevation ()

int	compute_average (size_t iy, size_t ix)

int	compute_cloudmask_ndvi (size_t iy, size_t ix, int &iCldRed, int &iCldBlue)

int	simulate_toa ()

int	retrieve_first ()

int	retrieve_second ()

int	assign_quality ()

int	store_output ()

int	fill_values ()

Protected Member Functions inherited from DtAlgorithm
int	interp_extrap (int num, float xin, float x[], float y[], float &yout)

int	mean_std (int n, float *data, float &mean, float &sdev)

int	mean_std_weighted (int n, float data, float &mean, float &sdev, float weight)

int	sort_index (int numPts, float array[], int index[])

int	sort_inplace (int numPts, float array1[], float array2[])

int	set_byte (short val, short bitPos, short &target)

int	compute_glint_angle ()

int	compute_scatter_angle (float &scat_angle)

Protected Member Functions inherited from DDAlgorithm
int	get_inputs (vector< size_t > start, vector< size_t > count, map< string, ddata * > imap)

map< string, ddata * >	set_outputs ()

map< string, ddata * >	set_fills ()

Additional Inherited Members
Public Types inherited from DtAlgorithm
enum	SIZES { ISMALL, IBIG }

enum	STATS { IBEST, IAVG }

Protected Attributes inherited from DtAlgorithm
int	SZA_0_

int	SZA_1_

int	THE_0_

int	THE_1_

int	PHI_0_

int	PHI_1_

Protected Attributes inherited from DDAlgorithm
size_t	lines_

size_t	pixels_

float	rfl_ [NTWL]

float	rfla_ [NTWL][3][3]

float	gasc_ [NTWL]

float	lat_

float	lon_

float	solz_

float	senz_

float	raa_

float	height_

float	scatt_

float	ws_

float	pwv_

float	oz_

float	ps_

int	month_

bool	bgascorrect_

bool	bglintmask_

bool	bcloudmask_

bool	btest_

unsigned char	cloud_mask_

short	qual_flag_

short	aerosol_type_

short	error_flag_

unsigned int	l2_flags_

float	scatter_ang_

float	glint_ang_

float	sse_

float	fmf_

float	aot_550_

float	ae1_

float	ae2_

float	ndv_

float	chlor_

float	ssa_ [NLWL+1]

float	sr_ [NLWL+1]

float	aot_ [NOWL+1]

Detailed Description

Definition at line 454 of file DtAlgorithm.h.

Constructor & Destructor Documentation

◆ DtAlgLand()

DtAlgLand ( )

Class constructor

Definition at line 218 of file DtAlgLand.cpp.

◆ ~DtAlgLand()

~DtAlgLand ( )

Class destructor

Definition at line 295 of file DtAlgLand.cpp.

Member Function Documentation

◆ assign_quality()

int assign_quality ( )

protected

This subroutine assigns all quality variables to be written to output file.

Definition at line 1159 of file DtAlgLand.cpp.

◆ compute_average()

int compute_average	(	size_t	iy,
		size_t	ix
	)

protected

This subroutine processes 10*10 pixel box for cloud detection and finds the average reflectance for red and blue channels. Surface Reflectance from wavelength 2.13 . This surface Reflectance and average Reflectance for red and blue channel are send to lookup table and optical thickness is derived

Definition at line 512 of file DtAlgLand.cpp.

◆ compute_cloudmask_ndvi()

int compute_cloudmask_ndvi	(	size_t	iy,
		size_t	ix,
		int &	iCldRed,
		int &	iCldBlue
	)

protected

This subroutine finds the dark targets using a threshold in the 2.13 micron channel.it averages the cloud free pixels in red channel to the 0.5 km resolution. If too cloudy or too bright at 2.13 it leaves the value as zero.

Definition at line 606 of file DtAlgLand.cpp.

◆ fill_values()

int fill_values ( )

protected

This subroutine stores fill values where required.

NAME: fill_values()

This subroutine assigns fill values to output data where appropriate.

Definition at line 1468 of file DtAlgLand.cpp.

◆ get_products()

vector<string> get_products ( )

inlinevirtual

Return a list of product names generated by the algorithm

Reimplemented from DtAlgorithm.

Definition at line 575 of file DtAlgorithm.h.

◆ index_geometry()

int index_geometry	(	float	sza,
		float	azim,
		float	phi
	)

protected

Reset LUT indices based on measured geometry

Definition at line 475 of file DtAlgLand.cpp.

◆ initialize()

int initialize ( map< string, ddata * > imap )

virtual

Initialize Input data

Reimplemented from DtAlgorithm.

Definition at line 310 of file DtAlgLand.cpp.

◆ interpolate_angle()

int interpolate_angle ( )

protected

Subroutine interpolates the lookup reflectances to the measured geometry.

Definition at line 696 of file DtAlgLand.cpp.

◆ interpolate_elevation()

int interpolate_elevation ( )

protected

The subroutine interpolates the lookup reflectances to the target elevation. Basically it is fudge: Interpolate between wavelengths to simulate elevation by a longer wavelength

Definition at line 758 of file DtAlgLand.cpp.

◆ interpolate_rayleigh()

int interpolate_rayleigh ( )

protected

This subroutine selects look-up table (using ITABLE) used to select both the "fine" and the "coarse/dust" land model Subroutine Interpolates the lookup Rayleigh reflectances to the measured geometry.

Definition at line 649 of file DtAlgLand.cpp.

◆ process()

map< string, ddata * > process	(	vector< size_t >	start,
		vector< size_t >	count,
		map< string, ddata * >	imap
	)

virtual

The subroutine derives non-cloudy aerosol optical thickness from MODIS measured radiances over land, using the 0.47 (blue), 0.66 (red) and 2.13 (IR) micron channels. Input data are cloud screened and averaged reflectance at at 10 x 10 km. Inversion: A) Select fine mode model based on geography (dynamic aerosol models) B) Mix fine mode and dust mode with selected discrete mixing ratios best matches the observed spectral reflectance. The program assumes that the input data are in reflectance units of PI*L/(F0*cos(theta0)) for all channels. It also assumes that the surface reflectance in the two visible channels are functions of the surface reflectance in the IR. Nominally, red is one half of IR, and blue is one-half of red, respectively.

Reimplemented from DtAlgorithm.

Definition at line 332 of file DtAlgLand.cpp.

◆ retrieve_first()

int retrieve_first ( )

protected

This subroutine retrieves optical thickness, surface reflectance and error parameters by comparing observations and LUT data

Definition at line 887 of file DtAlgLand.cpp.

◆ retrieve_second()

int retrieve_second ( )

protected

This subroutine retrieves optical thickness, surface reflectance and error parameters by comparing observations and LUT data. The "continental" aerosol model is assumed.

Definition at line 1027 of file DtAlgLand.cpp.

◆ simulate_toa()

int simulate_toa ( )

protected

The subroutine simulates TOA reflectance

Definition at line 1100 of file DtAlgLand.cpp.

◆ store_output()

int store_output ( )

protected

This subroutine stores all the output variables to be written to output file.

Definition at line 1325 of file DtAlgLand.cpp.

Member Data Documentation

◆ angstrom_

float angstrom_

Definition at line 521 of file DtAlgorithm.h.

◆ aot_c_

float aot_c_[NLWAV]

Definition at line 516 of file DtAlgorithm.h.

◆ aot_d_

float aot_d_[NLWAV]

Definition at line 514 of file DtAlgorithm.h.

◆ aot_f_

float aot_f_[NLWAV]

Definition at line 515 of file DtAlgorithm.h.

◆ cm_

DtCloudMaskLand* cm_

Definition at line 481 of file DtAlgorithm.h.

◆ DLAT

constexpr float DLAT = 0.5

staticconstexpr

Definition at line 474 of file DtAlgorithm.h.

◆ DLON

constexpr float DLON = 0.5

staticconstexpr

Definition at line 475 of file DtAlgorithm.h.

◆ DTABLE

constexpr int DTABLE = 5

staticconstexpr

Definition at line 467 of file DtAlgorithm.h.

◆ err644_

float err644_

Definition at line 519 of file DtAlgorithm.h.

◆ error_

short error_

Definition at line 499 of file DtAlgorithm.h.

◆ errwave_

float errwave_[NLWAV]

Definition at line 505 of file DtAlgorithm.h.

◆ eta_

float eta_

Definition at line 518 of file DtAlgorithm.h.

◆ eta_flag_

short eta_flag_

Definition at line 512 of file DtAlgorithm.h.

◆ fail_ret_

short fail_ret_

Definition at line 534 of file DtAlgorithm.h.

◆ fd_nl_

float fd_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 491 of file DtAlgorithm.h.

◆ fdt_nl_

float fdt_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 493 of file DtAlgorithm.h.

◆ good_pixels_

int good_pixels_[NLWAV]

Definition at line 524 of file DtAlgorithm.h.

◆ iaer_

short iaer_

Definition at line 523 of file DtAlgorithm.h.

◆ ifinish_

short ifinish_

Definition at line 529 of file DtAlgorithm.h.

◆ int_nl_

float int_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 490 of file DtAlgorithm.h.

◆ iproc_

short iproc_

Definition at line 528 of file DtAlgorithm.h.

◆ lut_

dtLandAerosolLUT lut_

Definition at line 480 of file DtAlgorithm.h.

◆ masscon_

float masscon_

Definition at line 520 of file DtAlgorithm.h.

◆ mtable_

int mtable_[NLSIZE]

Definition at line 485 of file DtAlgorithm.h.

◆ ndvi_

float ndvi_

Definition at line 522 of file DtAlgorithm.h.

◆ NLETA

constexpr int NLETA = 13

staticconstexpr

Definition at line 465 of file DtAlgorithm.h.

◆ NLPHI

constexpr int NLPHI = 16

staticconstexpr

Definition at line 461 of file DtAlgorithm.h.

◆ NLSIZE

constexpr int NLSIZE = 2

staticconstexpr

Definition at line 466 of file DtAlgorithm.h.

◆ NLTABLE

constexpr int NLTABLE = 5

staticconstexpr

Definition at line 464 of file DtAlgorithm.h.

◆ NLTAU

constexpr int NLTAU = 7

staticconstexpr

Definition at line 463 of file DtAlgorithm.h.

◆ NLTHE

constexpr int NLTHE = 15

staticconstexpr

Definition at line 460 of file DtAlgorithm.h.

◆ NLTHET0

constexpr int NLTHET0 = 11

staticconstexpr

Definition at line 459 of file DtAlgorithm.h.

◆ NLWAV

constexpr int NLWAV = 4

staticconstexpr

Definition at line 462 of file DtAlgorithm.h.

◆ num_pixels_used_

int num_pixels_used_

Definition at line 525 of file DtAlgorithm.h.

◆ opth_nl_

float opth_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 489 of file DtAlgorithm.h.

◆ PRESSURE_P0

constexpr float PRESSURE_P0 = 1013.0

staticconstexpr

Definition at line 473 of file DtAlgorithm.h.

◆ QA_LAND

constexpr int QA_LAND = 5

staticconstexpr

Definition at line 477 of file DtAlgorithm.h.

◆ qcontrol_special_

short qcontrol_special_

Definition at line 537 of file DtAlgorithm.h.

◆ quality_flag_for_joint_

short quality_flag_for_joint_[2]

Definition at line 535 of file DtAlgorithm.h.

◆ quality_flag_for_retr_

short quality_flag_for_retr_

Definition at line 536 of file DtAlgorithm.h.

◆ refl_

float refl_[NLWAV]

Definition at line 497 of file DtAlgorithm.h.

◆ refl_inter_

float refl_inter_[NLWAV][GRIDX *GRIDY]

Definition at line 496 of file DtAlgorithm.h.

◆ refl_ray_nl_

float refl_ray_nl_[NLWAV]

Definition at line 488 of file DtAlgorithm.h.

◆ return_quality_cirrus_

short return_quality_cirrus_

Definition at line 532 of file DtAlgorithm.h.

◆ rho_S212_

float rho_S212_[NLSIZE][NLTAU]

Definition at line 503 of file DtAlgorithm.h.

◆ rho_S212_tot_

float rho_S212_tot_[NLTAU]

Definition at line 504 of file DtAlgorithm.h.

◆ rho_S466_

float rho_S466_

Definition at line 506 of file DtAlgorithm.h.

◆ rho_S644_

float rho_S644_

Definition at line 509 of file DtAlgorithm.h.

◆ rho_sfc_

float rho_sfc_[NLWAV]

Definition at line 517 of file DtAlgorithm.h.

◆ rho_star_

float rho_star_[NLSIZE][NLWAV][NLTAU]

Definition at line 501 of file DtAlgorithm.h.

◆ rho_star_tot_

float rho_star_tot_[NLWAV][NLTAU]

Definition at line 502 of file DtAlgorithm.h.

◆ sbar_nl_

float sbar_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 494 of file DtAlgorithm.h.

◆ scatter_angle_

float scatter_angle_

Definition at line 484 of file DtAlgorithm.h.

◆ sdev_

float sdev_[NLWAV]

Definition at line 498 of file DtAlgorithm.h.

◆ sds_aerosol_type_

short sds_aerosol_type_

Definition at line 541 of file DtAlgorithm.h.

◆ sds_angs_coeff_

float sds_angs_coeff_

Definition at line 546 of file DtAlgorithm.h.

◆ sds_cloud_fraction_

float sds_cloud_fraction_

Definition at line 545 of file DtAlgorithm.h.

◆ sds_dust_weighting_

float sds_dust_weighting_

Definition at line 547 of file DtAlgorithm.h.

◆ sds_fitting_error_

float sds_fitting_error_

Definition at line 543 of file DtAlgorithm.h.

◆ sds_mass_conc_

float sds_mass_conc_

Definition at line 544 of file DtAlgorithm.h.

◆ sds_ndvi_

float sds_ndvi_

Definition at line 548 of file DtAlgorithm.h.

◆ sds_numpixels_

float sds_numpixels_[NLWAV]

Definition at line 549 of file DtAlgorithm.h.

◆ sds_qcontrol_

short sds_qcontrol_[QA_LAND]

Definition at line 540 of file DtAlgorithm.h.

◆ sds_refl_

float sds_refl_[NLWAV]

Definition at line 551 of file DtAlgorithm.h.

◆ sds_refl_std_

float sds_refl_std_[NLWAV]

Definition at line 552 of file DtAlgorithm.h.

◆ sds_scat_angle_

float sds_scat_angle_

Definition at line 542 of file DtAlgorithm.h.

◆ sds_surface_reflectance_

float sds_surface_reflectance_[NLWAV]

Definition at line 555 of file DtAlgorithm.h.

◆ sds_tau_big_

float sds_tau_big_[NLWAV]

Definition at line 554 of file DtAlgorithm.h.

◆ sds_tau_corrected_

float sds_tau_corrected_[NLWAV]

Definition at line 550 of file DtAlgorithm.h.

◆ sds_tau_small_

float sds_tau_small_[NLWAV]

Definition at line 553 of file DtAlgorithm.h.

◆ season_

int season_

Definition at line 483 of file DtAlgorithm.h.

◆ slope_466_

float slope_466_

Definition at line 508 of file DtAlgorithm.h.

◆ slope_644_

float slope_644_

Definition at line 511 of file DtAlgorithm.h.

◆ success_ret_

short success_ret_

Definition at line 533 of file DtAlgorithm.h.

◆ t_nl_

float t_nl_[NLSIZE][NLWAV][NLTAU]

Definition at line 492 of file DtAlgorithm.h.

◆ THR213MAX_1

constexpr float THR213MAX_1 = 0.25

staticconstexpr

Definition at line 470 of file DtAlgorithm.h.

◆ THR213MAX_2

constexpr float THR213MAX_2 = 0.25

staticconstexpr

Definition at line 472 of file DtAlgorithm.h.

◆ THR213MIN_1

constexpr float THR213MIN_1 = 0.01

staticconstexpr

Definition at line 469 of file DtAlgorithm.h.

◆ THR213MIN_2

constexpr float THR213MIN_2 = 0.25

staticconstexpr

Definition at line 471 of file DtAlgorithm.h.

◆ thresh_max_

float thresh_max_

Definition at line 531 of file DtAlgorithm.h.

◆ thresh_min_

float thresh_min_

Definition at line 530 of file DtAlgorithm.h.

◆ yint_466_

float yint_466_

Definition at line 507 of file DtAlgorithm.h.

◆ yint_644_

float yint_644_

Definition at line 510 of file DtAlgorithm.h.

The documentation for this class was generated from the following files:

/gfs-oceanweb/web/ocssw/ocssw_src/src/dtdb/darktarget/DtAlgorithm.h
/gfs-oceanweb/web/ocssw/ocssw_src/src/dtdb/darktarget/DtAlgLand.cpp

Public Member Functions

Public Attributes

Static Public Attributes

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DtAlgLand()

◆ ~DtAlgLand()

Member Function Documentation

◆ assign_quality()

◆ compute_average()

◆ compute_cloudmask_ndvi()

◆ fill_values()

◆ get_products()

◆ index_geometry()

◆ initialize()

◆ interpolate_angle()

◆ interpolate_elevation()

◆ interpolate_rayleigh()

◆ process()

◆ retrieve_first()

◆ retrieve_second()

◆ simulate_toa()

◆ store_output()

Member Data Documentation

◆ angstrom_

◆ aot_c_

◆ aot_d_

◆ aot_f_

◆ cm_

◆ DLAT

◆ DLON

◆ DTABLE

◆ err644_

◆ error_

◆ errwave_

◆ eta_

◆ eta_flag_

◆ fail_ret_

◆ fd_nl_

◆ fdt_nl_

◆ good_pixels_

◆ iaer_

◆ ifinish_

◆ int_nl_

◆ iproc_

◆ lut_

◆ masscon_

◆ mtable_

◆ ndvi_

◆ NLETA

◆ NLPHI

◆ NLSIZE

◆ NLTABLE

◆ NLTAU

◆ NLTHE

◆ NLTHET0

◆ NLWAV

◆ num_pixels_used_

◆ opth_nl_

◆ PRESSURE_P0

◆ QA_LAND

◆ qcontrol_special_

◆ quality_flag_for_joint_

◆ quality_flag_for_retr_

◆ refl_

◆ refl_inter_

◆ refl_ray_nl_

◆ return_quality_cirrus_

◆ rho_S212_

◆ rho_S212_tot_

◆ rho_S466_

◆ rho_S644_

◆ rho_sfc_

◆ rho_star_

◆ rho_star_tot_

◆ sbar_nl_

◆ scatter_angle_

◆ sdev_