| id | field name | definition |
|---|
| 0 | starttime |
| binary time | size: 12 |
|---|
Start date and time of the group profile covered by the present DSR. This is the centroid time of the first measurement of the profile.
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 | brc_start |
| binary uint16 | size: 2 |
|---|
|
Brc of the first measurement of the group.
|
|
| 2 | measurement_start |
| binary uint8 | size: 1 |
|---|
|
First measurement of the group.
|
|
| 3 | brc_end |
| binary uint16 | size: 2 |
|---|
|
Brc of the last measurement of the group.
|
|
| 4 | measurement_end |
| binary uint8 | size: 1 |
|---|
|
Last measurement of the group.
|
|
| 5 | height_bin_index |
| binary uint8 | size: 1 |
|---|
|
Index of the height level of the group in Rayleigh scale.
|
|
| 6 | upper_problem_flag |
| binary uint8 | size: 1 |
|---|
|
1: problem in the column above the group; 0 else. A problem may be slightly negative backscatter identified as a fluctuation around 0.
|
|
| 7 | particle_extinction_variance |
| binary double | size: 8 |
|---|
Variance of the particle extinction coefficient.
unit: "m^-2"
|
|
| 8 | particle_backscatter_variance |
| binary double | size: 8 |
|---|
Variance of the particle backscatter coefficient.
unit: "m^-2 sr^-2"
|
|
| 9 | particle_lod_variance |
| binary double | size: 8 |
|---|
|
Variance of the particle local optical depth.
|
|
| 10 | qc_flag |
| binary uint8 | size: 1 |
|---|
|
Currently set to 0.
|
|
| 11 | mid_particle_extinction_variance_top |
| binary double | size: 8 |
|---|
Variance of the particle extinction coefficient in this height top middle bin.
unit: "m^-2"
|
|
| 12 | mid_particle_backscatter_variance_top |
| binary double | size: 8 |
|---|
Variance of the particle backscatter coefficient in this height top middle bin.
unit: "m^-2 sr^-2"
|
|
| 13 | mid_particle_lod_variance_top |
| binary double | size: 8 |
|---|
|
Variance of the particle local optical depth in this height top middle bin.
|
|
| 14 | mid_particle_ber_variance_top |
| binary double | size: 8 |
|---|
Variance of the BER in this height top middle bin.
unit: "sr^-2"
|
|
| 15 | mid_particle_extinction_variance_bot |
| binary double | size: 8 |
|---|
Variance of the particle extinction coefficient in this height top middle bin.
unit: "m^-2"
|
|
| 16 | mid_particle_backscatter_variance_bot |
| binary double | size: 8 |
|---|
Variance of the particle backscatter coefficient in this height top middle bin.
unit: "m^-2 sr^-2"
|
|
| 17 | mid_particle_lod_variance_bot |
| binary double | size: 8 |
|---|
|
Variance of the particle local optical depth in this height top middle bin.
|
|
| 18 | mid_particle_ber_variance_bot |
| binary double | size: 8 |
|---|
Variance of the BER in this height top middle bin.
unit: "sr^-2"
|
|