Minimize ECHO_LRM

Level-1 ECHO_LRM Product

The Level-1 ECHO_LRM product contains all L1B tracking measurements in LRM mode, at 20 Hz rate and for both Ku and C band.

The main parameters of Level-1 ECHO_LRM product are:

Table 1: Level-1 ECHO_LRM product main parameters

Parameter name

Description

Units

time_l1b_echo_lrm

UTC time seconds elapsed since January 1st2000 00:00:00

seconds

lat_l1b_echo_lrm

Latitude

1.00e-06 degrees North

lon_l1b_echo_lrm

Longitude

1.00e-06 degrees East

surf_type_l1b_echo_lrm

Altimeter surface type

0b:open_ocean_or_semi-enclosed_seas

1b:enclosed_seas_or_lakes

2b:continental_ice

3b:land

range_ku_l1b_echo_lrm

range_c_l1b_echo_lrm

Tracker range (Ku or C band) corrected for USO frequency drift, internal path delay and Doppler corrections.

1.00e-04 meters(unit)

700000 meters (offset to be added)

sig0_cal_ku_l1b_echo_lrm

sig0_cal_c_l1b_echo_lrm

Scaling factor (Ku or C band) for sigma0 evaluation corrected for AGC instrumental errors and internal calibration

1.00e-02 dB

i2q2_meas_ku_l1b_echo_lrm i2q2_meas_c_l1b_echo_lrm

I2+Q2 echo waveforms corrected for the GPRW instrumental effect

count (unit)

1.00e-03 (scale factor)


 

For further information about Level-1 ECHO_LRM product parameters:

Level-1 ECHO_LRM Time parameters

Level-1 ECHO_LRM Location parameters

Level-1 ECHO_LRM Instrument status

Level-1 ECHO_LRM Surface Type

Level-1 ECHO_LRM Tracker range

Level-1 ECHO_LRM Sigma0 Scaling Factor

Level-1 ECHO_LRM Waveforms