| id | field name | definition |
|---|
| 0 | zero_doppler_time |
| binary time | size: 12 |
|---|
Zero Doppler Time (MJD format)
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 | quality_flag |
| binary int8 | size: 1 |
|---|
|
Quality Indicator (-1 for blank MDSR, 0 otherwise)
|
|
| 2 | range_spectral_res |
| binary float | size: 4 |
|---|
|
Range spectral resolution of the cartesian cross spectrum
|
|
| 3 | az_spectral_res |
| binary float | size: 4 |
|---|
|
Azimuth spectral resolution of the cartesian cross spectrum
|
|
| 4 | az_resample_factor |
| binary float | size: 4 |
|---|
|
Azimuth re-sampling factor in look extraction(Swath specific)
|
|
| 5 | spec_tot_energy |
| binary float | size: 4 |
|---|
|
Spectrum Total Energy
|
|
| 6 | spec_max_energy |
| binary float | size: 4 |
|---|
|
Spectrum Max Energy
|
|
| 7 | spec_max_dir |
| binary float | size: 4 |
|---|
Direction of Spectrum Max (deg) on higher resolution grid
unit: "degrees"
|
|
| 8 | spec_max_wl |
| binary float | size: 4 |
|---|
Wavelength of Spectrum Max (m) on higher resolution grid
unit: "m"
|
|
| 9 | clutter_noise |
| binary float | size: 4 |
|---|
|
Clutter Noise
|
|
| 10 | az_cutoff |
| binary float | size: 4 |
|---|
Azimuthal Clutter Cut-off length (m)
unit: "m"
|
|
| 11 | num_iterations |
| binary float | size: 4 |
|---|
|
Number of iterations to compute Azimuthal Clutter Cut-off
|
|
| 12 | range_offset |
| binary float | size: 4 |
|---|
Range offset of peak of cross covariance function (m)
unit: "m"
|
|
| 13 | ax_offset |
| binary float | size: 4 |
|---|
Azimuth offset of peak of cross covariance function (m)
unit: "m"
|
|
| 14 | cc_range_res |
| binary float | size: 4 |
|---|
Range resolution of cross co-variance spectrum (rad/m)
unit: "rad/m"
|
|
| 15 | cc_azimuth_res |
| binary float | size: 4 |
|---|
Azimuth resolution of cross co-variance spectrum (rad/m)
unit: "rad/m"
|
|
| 16 | sublook_means |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look Image Means
|
|
| 17 | sublook_variance |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look Image Variance
|
|
| 18 | sublook_skewness |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look Image skewness
|
|
| 19 | sublook_kurtosis |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look Image kurtosis
|
|
| 20 | range_sublook_detrend_coeff |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look de-trend coefficient in range
|
|
| 21 | az_sublook_detrend_coeff |
| binary array[2] | size: 8 |
|---|
1st and last Sub-look de-trend coefficient in azimuth
|
|
| 22 | min_imag |
| binary float | size: 4 |
|---|
|
Min value of Imaginary part of cross spectrum
|
|
| 23 | max_imag |
| binary float | size: 4 |
|---|
|
Max value of Imaginary part of cross spectrum
|
|
| 24 | min_real |
| binary float | size: 4 |
|---|
|
Min value of Real part of cross spectrum
|
|
| 25 | max_real |
| binary float | size: 4 |
|---|
|
Max value of Real part of cross spectrum
|
|
| 26 | spare_1 |
| binary bytes | size: 64 |
|---|
|
Spare
|
hidden: true
|
| 27 | real_spectra |
| binary array[dim_0, dim_1] |
|---|
Real part of cross spectra polar grid. Number of bins nominally 36 by 24. However, only 0 to 180 degree of the spectrum are supplied (18 by 24). Arranged as: 24 wavelength values for [-5,5] deg, 24 for [5,15] deg, etc. The 24 values for each sector are given in order from longest to shortest wavelength.
dim_0: $num_dir_bins / 2
dim_1: $num_wl_bins
|
|
| 28 | imag_spectra |
| binary array[dim_0, dim_1] |
|---|
Complex part of cross spectra polar grid. Number of bins nominally 36 by 24. However, only 0 to 180 degree of the spectrum are supplied (18 by 24). Arranged as: 24 wavelength values for [-5,5] deg, 24 for [5,15] deg, etc. The 24 values for each sector are given in order from longest to shortest wavelength.
dim_0: $num_dir_bins / 2
dim_1: $num_wl_bins
|
|