| id | field name | definition |
|---|
| 0 | dsr_time |
| binary time | size: 12 |
|---|
Time of DSR. ZPD time of sweep closest to scans mean time.
unit: "s since 2000-01-01"
value: float(./days) * 86400 + float(./seconds) + float(./microseconds) / 1000000
| binary record | size: 12 |
|---|
ENVISAT binary datetime
| id | field name | definition |
|---|
| 0 | days |
| binary int32 | size: 4 |
|---|
days since January 1st, 2000 (may be negative)
unit: "days since 2000-01-01"
|
|
| 1 | seconds |
| binary uint32 | size: 4 |
|---|
seconds since start of day
unit: "s"
|
|
| 2 | microseconds |
| binary uint32 | size: 4 |
|---|
microseconds since start of second
unit: "1e-6 s"
|
|
|
|
|
| 1 | dsr_length |
| binary uint32 | size: 4 |
|---|
Length of this DSR in bytes
unit: "bytes"
|
|
| 2 | quality_flag |
| binary int8 | size: 1 |
|---|
|
Quality indicator (set to -1 if all retrieval failed. Set to 0 otherwise.)
|
|
| 3 | conv_id |
| binary uint16 | size: 2 |
|---|
|
ID of convergence condition terminating the iteration: 0=convergence reached; 1=maximum number of micro-iterations exceeded; 2=maximum number of macro-iterations exceeded; 3=maximum run-time exceeded; 4=retrieval failed
|
|
| 4 | last_chi2 |
| binary float | size: 4 |
|---|
|
Last Chi^2 test value
|
|
| 5 | ig_flag |
| binary uint8 | size: 1 |
|---|
|
Flag indicating source of used initial guess data: bitfield: 0x01=MIP_IG2_AX data file used; 0x02=ECMWF data file used; 0x04=optimum estimate used; 0x08=retrieved p,T data used; 0x10=MIP_FM2_AX data used; 0x20=Recursive loop for p,T retrieval and first VMR retrieval (usually H2O) entered (this bit is only reported for p,T retrieval)
|
|
| 6 | vmr |
| binary array[dim_0] |
|---|
VMR of i'th LOS tangent altitude.
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
| binary float | size: 4 |
|---|
|
unit: "ppmv"
|
|
|
| 7 | vmr_var_cov |
| binary array[dim_0] |
|---|
VMR profile variance / covariance data. Elements of diagonal and off-diagonal elements of variance/covariance matrix
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) * (int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) + 1) / 2
| binary float | size: 4 |
|---|
|
unit: "ppmv2"
|
|
|
| 8 | conc_alt |
| binary array[dim_0] |
|---|
Concentration of i'th LOS tangent altitude
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
| binary float | size: 4 |
|---|
|
unit: "1/cm3"
|
|
|
| 9 | conc_var_cov |
| binary array[dim_0] |
|---|
Concentration profile variance / covariance data. Elements of diagonal and off-diagonal elements of variance/covariance matrix
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) * (int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) + 1) / 2
| binary double | size: 8 |
|---|
|
unit: "1/cm6"
|
|
|
| 10 | vert_col |
| binary array[dim_0] |
|---|
Vertical column density of i'th LOS tangent altitude
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
| binary float | size: 4 |
|---|
|
unit: "1/cm2"
|
|
|
| 11 | vert_col_var_cov |
| binary array[dim_0] |
|---|
Vertical column density profile variance / covariance data. Elements of diagonal and off-diagonal elements of variance /covariance matrix
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) * (int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3]) + 1) / 2
| binary double | size: 8 |
|---|
|
unit: "1/cm4"
|
|
|
| 12 | error_p_t_prop_flag |
| binary uint8 | size: 1 |
|---|
|
Flag indicating used approach for p,T error propagation
|
|
| 13 | error_p_t_vcm |
| binary array[dim_0, dim_1] |
|---|
p,T error VCM
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
dim_1: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
|
|
| 14 | base_alt |
| binary array[dim_0] |
|---|
Altitude grid for VMR base profiles
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_base_vmr_pts[3])
| binary float | size: 4 |
|---|
|
unit: "km"
|
|
|
| 15 | base_vmr |
| binary array[dim_0] |
|---|
VMR profile consisting of retrieved VMR and assumed values above and below (= base profile)
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_base_vmr_pts[3])
| binary float | size: 4 |
|---|
|
unit: "ppmv"
|
|
|
| 16 | avg_kernel |
| binary array[dim_0, dim_1] |
|---|
Averaging kernel matrix
dim_0: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
dim_1: int(/dataset_structure_ads[$vmr4_structure_index[index(:/..)]]/num_vmr_pts[3])
|
|
| 17 | cond_param |
| binary float | size: 4 |
|---|
|
conditioning parameter
|
|