3.6.3. L1B-S Output Files

3.6.3.1. File Description

In addition to the L1B file, the dedop processor can also optionally write an L1B-S output file. This file contains much of the same information as the L1B file, but is extended to include stack-level (per beam) data. The processor will produce an L1B-S file by default, but due to the large size of the file you may wish to dissable this. To prevent the processor from creating an L1B-S file, add the --skip-l1bs argument to the dedop run command.

3.6.3.2. Dimensions

  • time_l1bs_echo_sar_ku
    • description: Number of L1Bs ECHO_SAR_Ku measurements
  • echo_sample_ind
    • description: Number of samples in a waveform
  • max_multi_stack_ind
    • description: Maximum number of multilook beams per stack

3.6.3.3. Variables

  • time_l1bs_echo_sar_ku
    • description: UTC Seconds since 2000-01-01 00:00:00.0
  • UTC_day_l1bs_echo_sar_ku
    • description: UTC Days since 2000-01-01 00:00:00.0
  • UTC_sec_l1bs_echo_sar_ku
    • description: Seconds since the start of the current UTC day
  • lat_l1bs_echo_sar_ku
    • description: Surface location (degrees North)
  • lon_l1bs_echo_sar_ku
    • description: Surface location (degrees East)
  • surf_type_l1bs_echo_sar_ku
    • description: Altimeter surface type (open ocean or semi-enclosed seas/enclosed seas/enclosed seas or lakes/continental ice/land)
  • records_count_l1bs_echo_sar_ku
    • description: Record index
  • alt_l1bs_echo_sar_ku
    • description: Altitude of surface (m)
  • orb_alt_rate_l1bs_echo_sar_ku
    • description: Orbital altitude rate (m/s)
  • x_pos_l1bs_echo_sar_ku
    • description: Satellite ECEF x-coordinate
  • y_pos_l1bs_echo_sar_ku
    • description: Satellite ECEF y-coordinate
  • z_pos_l1bs_echo_sar_ku
    • description: Satellite ECEF z-coordinate
  • x_vel_l1bs_echo_sar_ku
    • description: Satellite ECEF x-velocity
  • y_vel_l1bs_echo_sar_ku
    • description: Satellite ECEF y-velocity
  • z_vel_l1bs_echo_sar_ku
    • description: Satellite ECEF z-velocity
  • meas_x_pos_l1bs_echo_sar_ku
    • description: Surface location - ECEF x-coordinate
  • meas_y_pos_l1bs_echo_sar_ku
    • description: Surface location - ECEF y-coordinate
  • meas_z_pos_l1bs_echo_sar_ku
    • description: Surface location - ECEF z-coordinate
  • roll_sat_pointing_l1bs_echo_sar_ku
    • description: Satellite pointing angle - roll (degrees)
  • pitch_sat_pointing_l1bs_echo_sar_ku
    • description: Satellite pointing angle - pitch (degrees)
  • yaw_sat_pointing_l1bs_echo_sar_ku
    • description: Satellite pointing angle - yaw (degrees)
  • roll_sral_mispointing_l1bs_echo_sar_ku
    • description: SRAL mispointing angle - roll (degrees)
  • pitch_sral_mispointing_l1bs_echo_sar_ku
    • description: SRAL mispointing angle - pitch (degrees)
  • yaw_sral_mispointing_l1bs_echo_sar_ku
    • description: SRAL mispointing angle - yaw (degrees)
  • range_ku_l1bs_echo_sar_ku
    • description: Corrected range for ku band (m)
  • int_path_cor_ku_l1bs_echo_sar_ku
    • description: Internal path correction for ku band
  • uso_cor_l1bs_echo_sar_ku
    • description: USO frequency drift correction
  • cog_cor_l1bs_echo_sar_ku
    • description: Distance antenna-CoG correction
  • agccode_ku_l1bs_echo_sar_ku
    • description: AGCCODE for ku band
  • agc_ku_l1bs_echo_sar_ku
    • description: corrected AGC for ku band
  • scale_factor_ku_l1bs_echo_sar_ku
    • description: scaling factor for sigma0 evaluation for ku band
  • sig0_cal_ku_l1bs_echo_sar_ku
    • description: internal calibration correction on Sigma0 for ku band
  • snr_ku_l1bs_echo_sar_ku
    • description: snr estimation for ku band
  • i2q2_meas_ku_l1bs_echo_sar_ku
    • description: multilooked I2+Q2 measurement for ku band
  • nb_stack_l1bs_echo_sar_ku
    • description: number of waveforms summed in stack
  • max_stack_l1bs_echo_sar_ku
    • description: maximum power of stack
  • max_loc_stack_l1bs_echo_sar_ku
    • description: Location of the maximum power of stack
  • stdev_stack_l1bs_echo_sar_ku
    • description: standard deviation of stack
  • skew_stack_l1bs_echo_sar_ku
    • description: skewness of stack
  • kurt_stack_l1bs_echo_sar_ku
    • description: kurtosis of stack
  • beam_ang_l1bs_echo_sar_ku
    • description: look angles in stack
  • beam_form_l1bs_echo_sar_ku
    • description: flag on beam formation quality in stack
  • burst_start_ind_l1bs_echo_sar_ku
    • description: Burst start index for stack building
  • burst_stop_ind_l1bs_echo_sar_ku
    • description: Burst stop index for stack building
  • iq_scale_factor_l1bs_echo_sar_ku
    • description: Dynamic scale factor for I/Q waveforms i_echoes_ku_l1bs_echo_sar_ku and q_echoes_ku_l1bs_echo_sar_ku
  • i_echoes_ku_l1bs_echo_sar_ku
    • description: Fully calibrated ku band echoes, i measurements aligned within the stack
  • q_echoes_ku_l1bs_echo_sar_ku
    • description: fully calibrated ku band echoes, q measurements aligned within the stack
  • start_look_angle_stack_l1bs_echo_sar_ku
    • description: start look angle in stack
  • stop_look_angle_stack_l1bs_echo_sar_ku
    • description: stop look angle in stack
  • start_beam_ang_stack_l1bs_echo_sar_ku
    • description: start doppler beam angle in stack
  • stop_beam_ang_stack_l1bs_echo_sar_ku
    • description: stop doppler beam angle in stack
  • power_var_stack_l1bs_echo_sar_ku
    • description: power variations within the stack