142#include <gsl/gsl_math.h>
143#include <gsl/gsl_blas.h>
144#include <gsl/gsl_linalg.h>
145#include <gsl/gsl_randist.h>
146#include <gsl/gsl_rng.h>
147#include <gsl/gsl_statistics.h>
164#define C1 1.19104259e-8
194#define KB 1.3806504e-23
204#define NA 6.02214199e23
278#define N ((2 + NG + NW) * NP + NCL + NSF + 3)
313#define NQ (5 + NG + NW + NCL + NSF)
343#define RFMNPTS 10000000
377#define IDXQ(ig) (2 + (ig))
380#define IDXK(iw) (2 + (ctl->ng) + (iw))
383#define IDXCLZ (2 + (ctl->ng) + (ctl->nw))
386#define IDXCLDZ (3 + (ctl->ng) + (ctl->nw))
389#define IDXCLK(icl) (4 + (ctl->ng) + (ctl->nw) + (icl))
392#define IDXSFT (4 + (ctl->ng) + (ctl->nw) + (ctl->ncl))
395#define IDXSFEPS(isf) (5 + (ctl->ng) + (ctl->nw) + (ctl->ncl) + (isf))
418#define ALLOC(ptr, type, n) \
419 if((ptr=calloc((size_t)(n), sizeof(type)))==NULL) \
420 ERRMSG("Out of memory!");
448#define BRIGHT(rad, nu) \
449 (C2 * (nu) / gsl_log1p(C1 * POW3(nu) / (rad)))
470#define CLAMP(v, lo, hi) \
471 (((v) < (lo)) ? (lo) : (((v) > (hi)) ? (hi) : (v)))
485#define CO2_FIT(TIME) \
486 (373.87884731310215e-6 \
487 + 1.9021498612395775e-6 * (((TIME) - 94694400.) / 31557600.) \
488 + 0.016490044598136553e-6 \
489 * POW2((((TIME) - 94694400.) / 31557600.)))
505#define DEG2RAD(deg) ((deg) * (M_PI / 180.0))
523#define DIST(a, b) sqrt(DIST2(a, b))
541 ((a[0]-b[0])*(a[0]-b[0])+(a[1]-b[1])*(a[1]-b[1])+(a[2]-b[2])*(a[2]-b[2]))
558#define DOTP(a, b) (a[0]*b[0]+a[1]*b[1]+a[2]*b[2])
578#define FREAD(ptr, type, size, out) { \
579 if(fread(ptr, sizeof(type), size, out)!=size) \
580 ERRMSG("Error while reading!"); \
601#define FWRITE(ptr, type, size, out) { \
602 if(fwrite(ptr, sizeof(type), size, out)!=size) \
603 ERRMSG("Error while writing!"); \
624#define LIN(x0, y0, x1, y1, x) \
625 ((y0)+((y1)-(y0))/((x1)-(x0))*((x)-(x0)))
645#define LOGY(x0, y0, x1, y1, x) \
647 ? ((y0)*exp(log((y1)/(y0))/((x1)-(x0))*((x)-(x0)))) \
648 : LIN(x0, y0, x1, y1, x))
666#define MAX(a,b) (((a)>(b))?(a):(b))
684#define MIN(a,b) (((a)<(b))?(a):(b))
698 int nc_result=(cmd); \
699 if(nc_result!=NC_NOERR) \
700 ERRMSG("%s", nc_strerror(nc_result)); \
726#define NC_DEF_VAR(varname, type, ndims, dims, long_name, units, level, quant) { \
727 NC(nc_def_var(ncid, varname, type, ndims, dims, &varid)); \
728 NC(nc_put_att_text(ncid, varid, "long_name", strnlen(long_name, LEN), long_name)); \
729 NC(nc_put_att_text(ncid, varid, "units", strnlen(units, LEN), units)); \
731 NC(nc_def_var_quantize(ncid, varid, NC_QUANTIZE_GRANULARBR, quant)); \
733 NC(nc_def_var_deflate(ncid, varid, 1, 1, level)); \
756#define NC_GET_DOUBLE(varname, ptr, force) { \
758 NC(nc_inq_varid(ncid, varname, &varid)); \
759 NC(nc_get_var_double(ncid, varid, ptr)); \
761 if(nc_inq_varid(ncid, varname, &varid) == NC_NOERR) { \
762 NC(nc_get_var_double(ncid, varid, ptr)); \
764 WARN("netCDF variable %s is missing!", varname); \
785#define NC_INQ_DIM(dimname, ptr, min, max, check) { \
786 int dimid; size_t naux; \
787 NC(nc_inq_dimid(ncid, dimname, &dimid)); \
788 NC(nc_inq_dimlen(ncid, dimid, &naux)); \
791 if ((*ptr) < (min) || (*ptr) > (max)) \
792 ERRMSG("Dimension %s is out of range!", dimname); \
809#define NC_PUT_DOUBLE(varname, ptr, hyperslab) { \
810 NC(nc_inq_varid(ncid, varname, &varid)); \
812 NC(nc_put_vara_double(ncid, varid, start, count, ptr)); \
814 NC(nc_put_var_double(ncid, varid, ptr)); \
833#define NC_PUT_FLOAT(varname, ptr, hyperslab) { \
834 NC(nc_inq_varid(ncid, varname, &varid)); \
836 NC(nc_put_vara_float(ncid, varid, start, count, ptr)); \
838 NC(nc_put_var_float(ncid, varid, ptr)); \
856#define NC_PUT_INT(varname, ptr, hyperslab) { \
857 NC(nc_inq_varid(ncid, varname, &varid)); \
859 NC(nc_put_vara_int(ncid, varid, start, count, ptr)); \
861 NC(nc_put_var_int(ncid, varid, ptr)); \
878#define NC_PUT_ATT(varname, attname, text) { \
879 NC(nc_inq_varid(ncid, varname, &varid)); \
880 NC(nc_put_att_text(ncid, varid, attname, strnlen(text, LEN), text)); \
895#define NC_PUT_ATT_GLOBAL(attname, text) \
896 NC(nc_put_att_text(ncid, NC_GLOBAL, attname, strnlen(text, LEN), text));
927#define NEDT(t_bg, nesr, nu) \
928 (BRIGHT(PLANCK((t_bg), (nu)) + (nesr), (nu)) - (t_bg))
956#define NESR(t_bg, nedt, nu) \
957 (PLANCK((t_bg) + (nedt), (nu)) - PLANCK((t_bg), (nu)))
973#define NORM(a) sqrt(DOTP(a, a))
1004#define PLANCK(T, nu) \
1005 (C1 * POW3(nu) / gsl_expm1(C2 * (nu) / (T)))
1018#define POW2(x) ((x)*(x))
1031#define POW3(x) ((x)*(x)*(x))
1047#define RAD2DEG(rad) ((rad) * (180.0 / M_PI))
1077#define REFRAC_SW53(p, T, h2o) \
1078 (1e-6 * (77.6 * (p) / (T) + 3.73e5 * (h2o) * (p) / ((T) * (T))))
1104#define REFRAC_EDLEN(p, T) \
1106 * (8342.54 + 2406147.0 / (130.0 - 1.0 / (10.0 * 10.0)) \
1107 + 15998.0 / (38.9 - 1.0 / (10.0 * 10.0)))) \
1108 * ((p) / 1013.25) * (288.15 / (T)))
1124#define TBL_LOG(tbl, id, ig) \
1126 for (int ip = 0; ip < (tbl)->np[(id)][(ig)]; ip++) \
1128 "p[%2d]= %.5e hPa | T[0:%2d]= %.2f ... %.2f K | " \
1129 "u[0:%3d]= %.5e ... %.5e molec/cm^2 | " \
1130 "eps[0:%3d]= %.5e ... %.5e", \
1132 (tbl)->p[(id)][(ig)][(ip)], \
1133 (tbl)->nt[(id)][(ig)][(ip)] - 1, \
1134 (tbl)->t[(id)][(ig)][(ip)][0], \
1135 (tbl)->t[(id)][(ig)][(ip)] \
1136 [(tbl)->nt[(id)][(ig)][(ip)] - 1], \
1137 (tbl)->nu[(id)][(ig)][(ip)][0] - 1, \
1138 exp((tbl)->logu[(id)][(ig)][(ip)][0][0]), \
1139 exp((tbl)->logu[(id)][(ig)][(ip)][0] \
1140 [(tbl)->nu[(id)][(ig)][(ip)][0] - 1]), \
1141 (tbl)->nu[(id)][(ig)][(ip)][0] - 1, \
1142 exp((tbl)->logeps[(id)][(ig)][(ip)][0][0]), \
1143 exp((tbl)->logeps[(id)][(ig)][(ip)][0] \
1144 [(tbl)->nu[(id)][(ig)][(ip)][0] - 1])); \
1158#define SELECT_TIMER(id, group) \
1159 {timer_group(id, group, 0);}
1168#define PRINT_TIMERS \
1169 {timer_group("END", "END", 1);}
1189#define TOK(line, tok, format, var) { \
1190 if(((tok)=strtok((line), " \t"))) { \
1191 if(sscanf(tok, format, &(var))!=1) continue; \
1192 } else ERRMSG("Error while reading!"); \
1209 for (iusage = 1; iusage < argc; iusage++) \
1210 if (!strcmp(argv[iusage], "-h") \
1211 || !strcmp(argv[iusage], "--help")) { \
1213 return EXIT_SUCCESS; \
1255#define LOG(level, ...) { \
1258 if(level <= LOGLEV) { \
1259 printf(__VA_ARGS__); \
1292#define WARN(...) { \
1293 printf("\nWarning (%s, %s, l%d): ", __FILE__, __func__, __LINE__); \
1294 LOG(0, __VA_ARGS__); \
1325#define ERRMSG(...) { \
1326 printf("\nError (%s, %s, l%d): ", __FILE__, __func__, __LINE__); \
1327 LOG(0, __VA_ARGS__); \
1328 exit(EXIT_FAILURE); \
1360#define PRINT(format, var) \
1361 printf("Print (%s, %s, l%d): %s= "format"\n", \
1362 __FILE__, __func__, __LINE__, #var, var);
1790 char shared_io_atm_apr_file[
LEN];
1793 char shared_io_obs_meas_file[
LEN];
1796 char shared_io_atm_final_file[
LEN];
1799 char shared_io_obs_final_file[
LEN];
1802 char shared_io_matrix_cov_apr_file[
LEN];
1805 char shared_io_matrix_kernel_file[
LEN];
1808 char shared_io_matrix_cov_ret_file[
LEN];
1811 char shared_io_matrix_corr_file[
LEN];
1814 char shared_io_matrix_gain_file[
LEN];
1817 char shared_io_matrix_avk_file[
LEN];
1820 char shared_io_atm_err_total_file[
LEN];
1823 char shared_io_atm_err_noise_file[
LEN];
1826 char shared_io_atm_err_formod_file[
LEN];
1829 char shared_io_atm_cont_file[
LEN];
1832 char shared_io_atm_res_file[
LEN];
1946 const gsl_matrix * avk);
2004 const gsl_matrix * avk,
2068 const int value_iqa,
2183 const gsl_vector * dx,
2184 const gsl_vector * dy,
2185 const gsl_matrix * s_a_inv,
2186 const gsl_vector * sig_eps_inv);
2306 const atm_t * atm_src,
2336 const obs_t * obs_src,
2414 const char *emitter);
2821 double tau_path[
ND][
NG],
2822 double tau_seg[
ND]);
2867 double tau_path[
ND][
NG],
2868 double tau_seg[
ND]);
2940 const double logeps);
3204 const gsl_matrix * a,
3205 const gsl_vector * b,
3206 const int transpose,
3401 const char *dirname,
3402 const char *filename,
3454 const char *filename,
3508 const char *filename,
3554 const char *filename,
3623 const char *dirname,
3624 const char *filename,
3626 gsl_matrix * matrix,
3661 const char *dirname,
3662 const char *filename,
3663 gsl_matrix * matrix);
3683 const char *dirname,
3684 const char *filename,
3685 gsl_matrix * matrix);
3709 const char *dirname,
3710 const char *filename,
3711 gsl_matrix * matrix,
3751 const char *dirname,
3752 const char *filename,
3795 const char *filename,
3841 const char *filename,
3878 const char *filename,
3923 const char *basename,
4050 const char *filename,
4089 const char *filename,
4316 const char *varname,
4318 const char *defvalue,
4439 gsl_vector * sig_noise,
4440 gsl_vector * sig_formod,
4441 gsl_vector * sig_eps_inv);
4471 const char *shared_file,
4472 const char *legacy_file,
4473 const char **dirname,
4504 const char *shared_file,
4505 const char *legacy_file,
4506 const char **dirname,
4686 size_t *bytes_used);
4745 const uint8_t * buf);
4779 const double remain,
4850 const char *dirname,
4851 const char *filename,
4908 const char *filename,
4966 const char *filename,
5018 const char *filename,
5075 const char *filename,
5103 const char *dirname,
5104 const char *filename,
5106 const gsl_matrix * matrix,
5109 const char *rowspace,
5110 const char *colspace,
5162 const char *dirname,
5163 const char *filename,
5165 const gsl_matrix * matrix,
5168 const char *rowspace,
5169 const char *colspace,
5187 const char *dirname,
5188 const char *filename,
5189 const gsl_matrix * matrix);
5218 const char *dirname,
5219 const char *filename,
5221 const gsl_matrix * matrix,
5224 const char *rowspace,
5225 const char *colspace,
5265 const char *dirname,
5266 const char *filename,
5310 const char *filename,
5352 const char *filename,
5394 const char *filename,
5434 const char *filename,
5485 const char *quantity,
5489 const gsl_matrix * s);
5680 const gsl_vector * x,
5713 const gsl_vector * x,
5750 const gsl_vector * y,
double intpol_tbl_eps(const tbl_t *tbl, const int ig, const int id, const int ip, const int it, const double logu)
Interpolate gas emissivity as a function of column amount.
void analyze_avk(const ret_t *ret, const ctl_t *ctl, const atm_t *atm, const int *iqa, const int *ipa, const gsl_matrix *avk)
Analyze averaging kernel (AVK) matrix for retrieval diagnostics.
void read_tbl_bin(const ctl_t *ctl, tbl_t *tbl, const int id, const int ig)
Read a single compact binary emissivity lookup table.
#define LEN
Maximum length of ASCII data lines.
double cost_function(const gsl_vector *dx, const gsl_vector *dy, const gsl_matrix *s_a_inv, const gsl_vector *sig_eps_inv)
Compute the normalized quadratic cost function for optimal estimation.
double read_obs_rfm(const char *basename, const double z, const double *nu, const double *f, const int n)
Read and spectrally convolve an RFM output spectrum.
void write_atm(const char *dirname, const char *filename, const ctl_t *ctl, const atm_t *atm, int profile)
Write atmospheric data to a file.
void read_rfm_spec(const char *filename, double *nu, double *rad, int *npts)
Read a Reference Forward Model (RFM) ASCII spectrum.
void tbl_pack(const tbl_t *tbl, int id, int ig, uint8_t *buf, size_t *bytes_used)
Pack a lookup table into a contiguous binary buffer.
void read_matrix_nc(const char *dirname, const char *filename, gsl_matrix *matrix, int dataset)
Read a numerical matrix from a netCDF file.
double cos_sza(const double sec, const double lon, const double lat)
Calculates the cosine of the solar zenith angle.
void read_atm_bin(const char *filename, const ctl_t *ctl, atm_t *atm)
Read atmospheric data in binary format.
void write_obs_asc(const char *filename, const ctl_t *ctl, const obs_t *obs)
Write observation data to an ASCII text file.
void formod_rfm(const ctl_t *ctl, const tbl_t *tbl, const atm_t *atm, obs_t *obs)
Forward-model radiance and transmittance with the Reference Forward Model (RFM).
int locate_reg(const double *xx, const int n, const double x)
Locate index for interpolation on a regular (uniform) grid.
void intpol_tbl_ega(const ctl_t *ctl, const tbl_t *tbl, const los_t *los, const int ip, double tau_path[ND][NG], double tau_seg[ND])
Interpolate emissivities and transmittances using the Emissivity Growth Approximation (EGA).
double ctmo2(const double nu, const double p, const double t)
Compute O₂ collision-induced absorption coefficient.
void write_obs_nc(const char *filename, const ctl_t *ctl, const obs_t *obs, const int profile)
Write one observation profile to a NetCDF file.
void tbl_free(const ctl_t *ctl, tbl_t *tbl)
Free lookup table and all internally allocated memory.
void write_tbl_asc(const ctl_t *ctl, const tbl_t *tbl, const int id, const int ig)
Write one emissivity lookup table in human-readable ASCII format.
void write_tbl_nc(const ctl_t *ctl, const tbl_t *tbl, const int id, const int ig)
Write one packed lookup table to a NetCDF file.
void idx2name(const ctl_t *ctl, const int idx, char *quantity)
Convert a quantity index to a descriptive name string.
void read_ctl(int argc, char *argv[], ctl_t *ctl)
Read model control parameters from command-line and configuration input.
void formod_continua(const ctl_t *ctl, const los_t *los, const int ip, double *beta)
Compute total extinction including gaseous continua.
void read_obs_bin(const char *filename, const ctl_t *ctl, obs_t *obs)
Read binary-formatted observation data from a file.
int shared_io_lock(const ret_t *ret)
Acquire an exclusive lock for shared retrieval output files.
void raytrace(const ctl_t *ctl, const atm_t *atm, obs_t *obs, los_t *los, const int ir)
Perform line-of-sight (LOS) ray tracing through the atmosphere.
void read_obs(const char *dirname, const char *filename, const ctl_t *ctl, obs_t *obs, int profile)
Read observation data from an input file.
void matrix_product(const gsl_matrix *a, const gsl_vector *b, const int transpose, gsl_matrix *c)
Compute structured matrix products of the form or .
int locate_irr(const double *xx, const int n, const double x)
Locate index for interpolation on an irregular grid.
const char * shared_io_input_target(const ret_t *ret, const char *shared_file, const char *legacy_file, const char **dirname, int *profile)
Resolve retrieval input target for legacy-directory and shared-file modes.
void write_matrix_asc(const char *dirname, const char *filename, const ctl_t *ctl, const gsl_matrix *matrix, const atm_t *atm, const obs_t *obs, const char *rowspace, const char *colspace, const char *sort)
Write a fully annotated matrix (e.g., Jacobian or gain matrix) to an ASCII file.
void day2doy(int year, int mon, int day, int *doy)
Convert a calendar date to day-of-year.
void write_atm_nc(const char *filename, const ctl_t *ctl, const atm_t *atm, int profile)
Write one atmospheric profile to a netCDF file.
void write_matrix(const char *dirname, const char *filename, const ctl_t *ctl, const gsl_matrix *matrix, const atm_t *atm, const obs_t *obs, const char *rowspace, const char *colspace, const char *sort, int dataset)
Write a fully annotated matrix (e.g., Jacobian or gain matrix) to file.
void time2jsec(const int year, const int mon, const int day, const int hour, const int min, const int sec, const double remain, double *jsec)
Converts time components to seconds since January 1, 2000, 12:00:00 UTC.
void x2atm(const ctl_t *ctl, const gsl_vector *x, atm_t *atm)
Map retrieval state vector back to atmospheric structure.
void atm2x_help(const double value, const int value_iqa, const int value_ip, gsl_vector *x, int *iqa, int *ipa, size_t *n)
Append a single atmospheric value to the state vector.
double ctmh2o(const double nu, const double p, const double t, const double q, const double u)
Compute water vapor continuum (optical depth).
void write_tbl_bin(const ctl_t *ctl, const tbl_t *tbl, const int id, const int ig)
Write one emissivity lookup table in compact binary format.
void intpol_tbl_cga(const ctl_t *ctl, const tbl_t *tbl, const los_t *los, const int ip, double tau_path[ND][NG], double tau_seg[ND])
Interpolate emissivities and transmittances using the Curtis–Godson approximation (CGA).
void shared_io_unlock(int fd)
Release a shared retrieval output lock.
void write_atm_rfm(const char *filename, const ctl_t *ctl, const atm_t *atm)
Write atmospheric profile in RFM-compatible format.
#define ND
Maximum number of radiance channels.
void set_cov_meas(const ret_t *ret, const ctl_t *ctl, const obs_t *obs, gsl_vector *sig_noise, gsl_vector *sig_formod, gsl_vector *sig_eps_inv)
Construct measurement error standard deviations and their inverse.
void write_obs(const char *dirname, const char *filename, const ctl_t *ctl, const obs_t *obs, int profile)
Write observation data to an output file in ASCII or binary format.
#define NSHAPE
Maximum number of shape function grid points.
void write_tbl(const ctl_t *ctl, const tbl_t *tbl)
Write emissivity lookup tables to disk.
size_t tbl_unpack(tbl_t *tbl, int id, int ig, const uint8_t *buf)
Unpack a lookup table from a contiguous binary buffer.
void read_matrix(const char *dirname, const char *filename, const ctl_t *ctl, gsl_matrix *matrix, int dataset)
Read a numerical matrix from a file.
void intpol_atm(const ctl_t *ctl, const atm_t *atm, const double z, double *p, double *t, double *q, double *k)
Interpolate atmospheric state variables at a given altitude.
int find_emitter(const ctl_t *ctl, const char *emitter)
Find gas species index by name.
void optimal_estimation(ret_t *ret, ctl_t *ctl, tbl_t *tbl, obs_t *obs_meas, obs_t *obs_i, atm_t *atm_apr, atm_t *atm_i, double *chisq)
Perform optimal estimation retrieval using Levenberg–Marquardt minimization.
double intpol_tbl_u(const tbl_t *tbl, const int ig, const int id, const int ip, const int it, const double logeps)
Interpolate column amount as a function of emissivity.
void timer_group(const char *name, const char *group, int output)
Aggregate wall-clock timings for named code phases.
void tangent_point(const los_t *los, double *tpz, double *tplon, double *tplat)
Determine the tangent point along a line of sight (LOS).
void formod_pencil(const ctl_t *ctl, const tbl_t *tbl, const atm_t *atm, obs_t *obs, const int ir)
Compute line-of-sight radiances using the pencil-beam forward model.
double ctmco2(const double nu, const double p, const double t, const double u)
Compute carbon dioxide continuum (optical depth).
void read_atm(const char *dirname, const char *filename, const ctl_t *ctl, atm_t *atm, int profile)
Read atmospheric input data from a file.
void write_matrix_nc(const char *dirname, const char *filename, const ctl_t *ctl, const gsl_matrix *matrix, const atm_t *atm, const obs_t *obs, const char *rowspace, const char *colspace, const char *sort, int dataset)
Write a numerical matrix to a netCDF file.
void write_atm_asc(const char *filename, const ctl_t *ctl, const atm_t *atm)
Write atmospheric data to an ASCII file.
void write_matrix_bin(const char *dirname, const char *filename, const gsl_matrix *matrix)
Write a numerical matrix to a binary file.
void copy_obs(const ctl_t *ctl, obs_t *obs_dest, const obs_t *obs_src, const int init)
Copy or initialize observation geometry and radiance data.
#define TBLNT
Maximum number of temperatures in emissivity tables.
void write_obs_bin(const char *filename, const ctl_t *ctl, const obs_t *obs)
Write observation data in binary format to a file.
void x2atm_help(double *value, const gsl_vector *x, size_t *n)
Helper function to extract a single value from the retrieval state vector.
void cart2geo(const double *x, double *z, double *lon, double *lat)
Converts Cartesian coordinates to geographic coordinates.
#define NP
Maximum number of atmospheric data points.
void formod_fov(const ctl_t *ctl, obs_t *obs)
Apply field-of-view (FOV) convolution to modeled radiances.
void doy2day(int year, int doy, int *mon, int *day)
Convert a day-of-year value to a calendar date.
void kernel(const ctl_t *ctl, const tbl_t *tbl, atm_t *atm, obs_t *obs, gsl_matrix *k)
Compute the Jacobian (kernel) matrix by finite differences.
void read_obs_nc(const char *filename, const ctl_t *ctl, obs_t *obs, const int profile)
Read one observation profile from a NetCDF file.
void init_srcfunc(const ctl_t *ctl, tbl_t *tbl)
Initialize source function lookup tables from emissivity data.
void matrix_invert(gsl_matrix *a)
Invert a square matrix, optimized for diagonal or symmetric positive-definite matrices.
void read_ret(int argc, char *argv[], const ctl_t *ctl, ret_t *ret)
Read retrieval configuration and error parameters.
double scan_ctl(int argc, char *argv[], const char *varname, const int arridx, const char *defvalue, char *value)
Scan control file or command-line arguments for a configuration variable.
void write_shape(const char *filename, const double *x, const double *y, const int n)
Write tabulated shape function data to a text file.
void formod(const ctl_t *ctl, const tbl_t *tbl, atm_t *atm, obs_t *obs)
Execute the selected forward model.
void read_atm_asc(const char *filename, const ctl_t *ctl, atm_t *atm)
Read atmospheric data in ASCII format.
#define NG
Maximum number of emitters.
void read_tbl_asc(const ctl_t *ctl, tbl_t *tbl, const int id, const int ig)
Read a single ASCII emissivity lookup table.
void formod_srcfunc(const ctl_t *ctl, const tbl_t *tbl, const double t, double *src)
Interpolate the source function (Planck radiance) at a given temperature.
void analyze_avk_quantity(const gsl_matrix *avk, const int iq, const int *ipa, const size_t *n0, const size_t *n1, double *cont, double *res)
Analyze averaging kernel submatrix for a specific retrieved quantity.
void jsec2time(const double jsec, int *year, int *mon, int *day, int *hour, int *min, int *sec, double *remain)
Converts Julian seconds to calendar date and time components.
#define TBLNS
Maximum number of source function temperature levels.
void read_matrix_asc(const char *dirname, const char *filename, gsl_matrix *matrix)
Read a numerical matrix from an ASCII file.
tbl_t * read_tbl(const ctl_t *ctl)
Read emissivity lookup tables from disk.
void read_matrix_bin(const char *dirname, const char *filename, gsl_matrix *matrix)
Read a numerical matrix from a binary file.
void read_tbl_nc_channel(const ctl_t *ctl, tbl_t *tbl, int id, int ig, int ncid)
Read one packed emissivity lookup table from an open NetCDF file.
const char * shared_io_output_target(const ret_t *ret, const char *shared_file, const char *legacy_file, const char **dirname, int *profile)
Resolve retrieval output target for legacy-directory and shared-file modes.
void read_atm_nc(const char *filename, const ctl_t *ctl, atm_t *atm, int profile)
Read one atmospheric profile from a netCDF file.
void copy_atm(const ctl_t *ctl, atm_t *atm_dest, const atm_t *atm_src, const int init)
Copy or initialize atmospheric profile data.
size_t obs2y(const ctl_t *ctl, const obs_t *obs, gsl_vector *y, int *ida, int *ira)
Convert observation radiances into a measurement vector.
void y2obs(const ctl_t *ctl, const gsl_vector *y, obs_t *obs)
Copy elements from the measurement vector y into the observation structure.
void hydrostatic(const ctl_t *ctl, atm_t *atm)
Adjust pressure profile using the hydrostatic equation.
void read_shape(const char *filename, double *x, double *y, int *n)
Read a two-column shape function from an ASCII file.
double ctmn2(const double nu, const double p, const double t)
Compute N₂ collision-induced absorption coefficient.
size_t atm2x(const ctl_t *ctl, const atm_t *atm, gsl_vector *x, int *iqa, int *ipa)
Convert atmospheric data to state vector elements.
#define TBLNP
Maximum number of pressure levels in emissivity tables.
void climatology(const ctl_t *ctl, atm_t *atm)
Initializes atmospheric climatology profiles.
void geo2cart(const double z, const double lon, const double lat, double *x)
Converts geographic coordinates (longitude, latitude, altitude) to Cartesian coordinates.
#define NSF
Maximum number of surface layer spectral grid points.
#define NCL
Maximum number of cloud layer spectral grid points.
void set_cov_apr(const ret_t *ret, const ctl_t *ctl, const atm_t *atm, const int *iqa, const int *ipa, gsl_matrix *s_a)
Construct the a priori covariance matrix for retrieval parameters.
const char * shared_io_output_file(const ret_t *ret)
Return the primary shared retrieval output file configured for locking.
void write_stddev(const char *quantity, const ret_t *ret, const ctl_t *ctl, const atm_t *atm, const gsl_matrix *s)
Write retrieval standard deviation profiles to disk.
#define NLOS
Maximum number of LOS points.
size_t tbl_packed_size(const tbl_t *tbl, int id, int ig)
Compute required buffer size (in bytes) for tbl_pack().
#define NR
Maximum number of ray paths.
int locate_tbl(const float *xx, const int n, const double x)
Locate index for interpolation within emissivity table grids.
void write_atm_bin(const char *filename, const ctl_t *ctl, const atm_t *atm)
Write atmospheric data to a binary file.
void read_obs_asc(const char *filename, const ctl_t *ctl, obs_t *obs)
Read ASCII-formatted observation data from a file.
#define NW
Maximum number of spectral windows.
Atmospheric profile data.
double clz
Cloud layer height [km].
int np
Number of data points.
double cldz
Cloud layer depth [km].
double sft
Surface temperature [K].
int write_matrix
Write matrix file (0=no, 1=yes).
int nw
Number of spectral windows.
int atmfmt
Atmospheric data file format (1=ASCII, 2=binary, 3=netCDF).
double retp_zmin
Minimum altitude for pressure retrieval [km].
int ig_co2
Emitter index of CO2.
double hydz
Reference height for hydrostatic pressure profile (-999 to skip) [km].
int ctm_co2
Compute CO2 continuum (0=no, 1=yes).
double rett_zmax
Maximum altitude for temperature retrieval [km].
int ret_sfeps
Retrieve surface layer emissivity (0=no, 1=yes).
int ret_sft
Retrieve surface layer temperature (0=no, 1=yes).
int ret_clz
Retrieve cloud layer height (0=no, 1=yes).
int ctm_n2
Compute N2 continuum (0=no, 1=yes).
int ctm_h2o
Compute H2O continuum (0=no, 1=yes).
int formod
Forward model (0=CGA, 1=EGA, 2=RFM).
int ng
Number of emitters.
int refrac
Take into account refractivity (0=no, 1=yes).
int ig_o2
Emitter index of O2.
double rett_zmin
Minimum altitude for temperature retrieval [km].
double sfsza
Solar zenith angle at the surface [deg] (-999=auto).
int nd
Number of radiance channels.
int fov_n
Field-of-view number of data points.
int sftype
Surface treatment (0=none, 1=emissions, 2=downward, 3=solar).
int matrixfmt
Matrix data file format (1=ASCII, 2=binary, 3=netCDF).
int ncl
Number of cloud layer spectral grid points.
int ig_n2
Emitter index of N2.
int obsfmt
Observation data file format (1=ASCII, 2=binary, 3=netCDF).
int ctm_o2
Compute O2 continuum (0=no, 1=yes).
int ret_clk
Retrieve cloud layer extinction (0=no, 1=yes).
int nsf
Number of surface layer spectral grid points.
double rayds
Maximum step length for raytracing [km].
int ret_cldz
Retrieve cloud layer depth (0=no, 1=yes).
int ig_h2o
Emitter index of H2O.
int tblfmt
Look-up table file format (1=ASCII, 2=binary, 3=netCDF).
double raydz
Vertical step length for raytracing [km].
int write_bbt
Use brightness temperature instead of radiance (0=no, 1=yes).
double retp_zmax
Maximum altitude for pressure retrieval [km].
double sft
Surface temperature [K].
int np
Number of LOS points.
Observation geometry and radiance data.
int nr
Number of ray paths.
Retrieval control parameters.
double err_press_cz
Vertical correlation length for pressure error [km].
double err_press
Pressure error [%].
int err_ana
Carry out error analysis (0=no, 1=yes).
double err_temp_cz
Vertical correlation length for temperature error [km].
double conv_dmin
Minimum normalized step size in state space.
double err_temp
Temperature error [K].
double err_clz
Cloud height error [km].
double err_sft
Surface temperature error [K].
double err_temp_ch
Horizontal correlation length for temperature error [km].
int kernel_recomp
Re-computation of kernel matrix (number of iterations).
int conv_itmax
Maximum number of iterations.
double err_cldz
Cloud depth error [km].
double err_press_ch
Horizontal correlation length for pressure error [km].
int shared_io_profile
Profile index used for shared netCDF retrieval inputs and outputs.
Emissivity look-up tables.