SIR_L2_INTERM_MDSR_v0

binary record ""

size: 556

SIRAL L2 intermediate measurement data set record

field name

definition

mdsr_time

binary time

size: 12

Data record time (MDSR time stamp)

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"

uso_corr

binary int32 (double)	size: 4
USO correction factor converted unit: "" (multiply by 1/1000000000000000)

mode_id

binary record

size: 2

Mode ID (instrument mode information)

field name

definition

instr_mode

binary uint8	size: 0:6
Instrument mode (derived from configuration bits in L0): 1 = LRM, 2 = SAR, 3 = SARin, 11 = CAL1-LRM, 12 = CAL1-SAR, 13 = CAL1-SARin, 22 = CAL2-SAR, 23 = CAL-SARin

sarin_degr

binary uint8	size: 0:1
SARin degraded case (set to 1 if one receive chain is missing)

spare_1

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

cal4_mode

binary uint8	size: 0:1
CAL4 mode (set to 1 for CAL4 packets)

pltf_att_contr

binary uint8	size: 0:2
Platform attitude control: 0 = unknown, 1 = local normal pointing mode (affirmed), 2 = yaw steering mode (affirmed)

spare_2

binary bytes	size: 0:5
spare (reserved, set to 0)

hidden: true

src_seq_count

binary uint16	size: 2
Source sequence counter (a 16384 cyclic modulo counter, starting from 0, incrementing by 1, a separate counter is maintained for each instrument mode)

instr_conf_flags

binary record

size: 4

Instrument configuration flags

field name

definition

rx_chain

binary uint8	size: 0:2
Reception chain in use: 0 = unknown, 1 = chain 1, 2 = chain 2, 3 = both

instr_id

binary uint8	size: 0:1
SIRAL identifier: 0 = Nominal, 1 = Redundant

spare_1

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

bandw

binary uint8	size: 0:2
Bandwidth: 0 = unknown, 1 = 320 MHz, 2 = 40 MHz

spare_2

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

spare_3

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

trk_mode

binary uint8	size: 0:2
Tracking mode: 0 = unknown, 1 = LRM, 2 = SAR, 3 = SARin

ext_cal

binary uint8	size: 0:1
External calibration: 0 = no, 1 = external calibration

spare_4

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

loop_stat

binary uint8	size: 0:1
Loop status: 0 = closed loop, 1 = open loop

echo_loss

binary uint8	size: 0:1
Loss of echo (from cycle report): 0 = OK, 1 = loss of echo

rt_err

binary uint8	size: 0:1
Real time error (from cycle report): 0 = OK, 1 = real time computation error (computing cycle too long)

echo_sat_err

binary uint8	size: 0:1
Echo saturation error (from cycle report): 0 = OK, 1 = echo saturation detected

rx_band_att

binary uint8	size: 0:1
Reception band attenuation: 0 = not attenuated, 1 = attenuated

cycl_gen_err

binary uint8	size: 0:1
Cycle report general error: 0 = cycle report is 0, 1 = cycle report is not 0

star_trk1

binary uint8	size: 0:1
Star Tracker 1 used: 0 = not used, 1 = used

star_trk2

binary uint8	size: 0:1
Star Tracker 2 used: 0 = not used, 1 = used

star_trk3

binary uint8	size: 0:1
Star Tracker 3 used: 0 = not used, 1 = used

spare_5

binary bytes	size: 1:3
spare (reserved, set to 0)

hidden: true

surf_samp_count

binary uint32	size: 4
Surface sample counter (record counter)

lat

binary int32 (double)	size: 4
Latitude of measurement in WSG84 unit: "1e-7 degrees_north" converted unit: "degrees_north" (multiply by 1/10000000)

lon

binary int32 (double)	size: 4
Longitude of measurement in WSG84 unit: "1e-7 degrees_east" converted unit: "degrees_east" (multiply by 1/10000000)

alt_cog_ref_ellip

binary int32	size: 4
Altitude of CoG above reference ellipsoid (interpolated value) unit: "mm"

inst_alt_rate

binary int32	size: 4
Instantaneous altitude rate derived from orbit unit: "mm/s"

sat_vel_vec

binary array[3]

size: 12

Satellite velocity vector[3] described in the international terrestial reference frame in the international earth fixed system. Note that this is not a unit vector, because the velocity magnitude is needed as well.

binary int32 size: 4

Velocity vector component

unit: "mm/s"

beam_dir_vec

binary array[3]

size: 12

Real beam direction vector[3] described in the CRYOSAT reference frame

binary int32 (double) size: 4

Beam direction vector component

unit: "1e-6 m"

converted unit: "m" (multiply by 1/1000000)

ifm_basel_vec

binary array[3]

size: 12

Interferometer baseline vector[3] described in the CRYOSAT reference frame

binary int32 (double) size: 4

Baseline vector component

unit: "1e-6 m"

converted unit: "m" (multiply by 1/1000000)

meas_conf_flags

binary record

size: 4

Measurement confidence flags. Serious errors are indicated by setting the 'block degraded' flag, in which case the block must not be processed. Other error settings can be regarded as warnings.

field name

definition

blk_degr

binary uint8	size: 0:1
Block degraded: 0 = OK, 1 = degraded, block should not be processed

blnk_blk

binary uint8	size: 0:1
Blank block: 0 = OK, 1 = blank block inserted for record padding

dat_degr

binary uint8	size: 0:1
Datation degraded: 0 = OK, 1 = datation is bad or not set

orb_prop_err

binary uint8	size: 0:1
Orbit propagation error: 0 = OK, 1 = error (returned by CFI or by independent check)

orb_file_chng

binary uint8	size: 0:1
Orbit file change: 0 = OK, 1 = orbit file has changed w.r.t. previous record

orb_discnt

binary uint8	size: 0:1
Orbit discontinuity: 0 = OK, 1 = discontinuity (e.g. gap)

echo_sat

binary uint8	size: 0:1
Echo saturation (from L0): 0 = OK, 1 = saturated (from echo saturation flag in the telemetry)

other_echo_err

binary uint8	size: 0:1
Other echo error (e.g. empty waveform): 0 = OK, 1 = echo error

rx_ch1_err

binary uint8	size: 0:1
Receive chain 1 error for SARin: 0 = OK, 1 = degraded or missing

rx_ch2_err

binary uint8	size: 0:1
Receive chain 2 error for SARin: 0 = OK, 1 = degraded or missing

win_delay_inc

binary uint8	size: 0:1
Window delay inconsistency: 0 = OK, 1 = degraded, value out of range, or computation error

agc_inc

binary uint8	size: 0:1
AGC inconsistency: 0 = OK, 1 = degraded, value out of range, or computation error

cal1_corr_miss

binary uint8	size: 0:1
CAL1 correction missing: 0 = OK, 1 = missing - not applied

cal1_ipf_used

binary uint8	size: 0:1
CAL1 from IPF DB used: 0 = default not used, 1 = default from IPF DB used

doris_uso_corr

binary uint8	size: 0:1
DORIS USO correction: 0 = OK, correction available, 1 = correction not available

comp_cal1_ipf_used

binary uint8	size: 0:1
Complex CAL1 from IPF DB used: 0 = default not used, 1 = default from IPF DB used

trk_echo_err

binary uint8	size: 0:1
TRK echo error: 0 = OK, 1 = degraded tracking echo

echo_rx1_err

binary uint8	size: 0:1
Echo Rx1 error: 0 = OK, 1 = bad raw echo

echo_rx2_err

binary uint8	size: 0:1
Echo Rx2 error: 0 = OK, 1 = bad raw echo

npm_inc

binary uint8	size: 0:1
NPM inconsistency: 0 = OK, 1 = degraded, value out of range, or computation error

azi_cal_miss

binary uint8	size: 0:1
Azimuth calibration missing: 0 = OK, azimuth calibration applied, 1 = no azimuth calibration

azi_cal_ipf_used

binary uint8	size: 0:1
Azimuth calibration from IPF DB used: 0 = default not used, 1 = default from IPF DB used

win_cal_func_miss

binary uint8	size: 0:1
Range window calibration function (i.e. the frequency dependent phase and amplitude correction function applicable to the range window) missing: 0 = OK, calibrated, 1 = no calibration applied

win_cal_func_ipf_used

binary uint8	size: 0:1
Range window calibration function from IPF DB used: 0 = default not used, 1 = default from IPF DB used

phase_pert_corr

binary uint8	size: 0:1
Phase perturbation correction application: 0 = applied, 1 = not applied

cal2_corr_miss

binary uint8	size: 0:1
CAL2 correction missing: 0 = OK, 1 = missing - not applied

cal2_ipf_used

binary uint8	size: 0:1
CAL2 from IPF DB used: 0 = default not used, 1 = default from IPF DB used

pow_scl_fac

binary uint8	size: 0:1
Power scaling factor: 0 = OK, 1 = error in power scaling factor

att_corr_miss

binary uint8	size: 0:1
Attitude correction missing: 0 = OK, attitude correction applied, 1 = not corrected

att_intp_err

binary uint8	size: 0:1
Attitude interpolation error: 0 = OK, 1 = interpolation error, attitude is wrong

spare

binary bytes	size: 0:1
spare (reserved, set to 0)

hidden: true

phase_pert_corr_mode

binary uint8	size: 0:1
Phase perturbation correction mode: 0 = computed by CCAL1, 1 = default from IPF DB used (applicable only to SARin data)

surf_height

binary int32	size: 4
Height of surface w.r.t reference ellipsoid WSG84 unit: "mm"

sig_0

binary int32 (double)	size: 4
Backscatter Sigma 0, fully corrected including instrument gain corrections and retracker correction unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

swh

binary int32	size: 4
Significant Wave Height unit: "mm"

peak

binary int32 (double)	size: 4
Peakiness converted unit: "" (multiply by 1/100)

retrk_range_corr

binary int32	size: 4
Retracked range correction: the offset of the retracked point on the echo from the reference point on the range window. This is a 1-way correction. unit: "mm"

retrk_sig_0_corr

binary int32 (double)	size: 4
Retracked backscatter sigma 0 correction: correction to sigma 0 resulting from actual echo power being different from normal, or expected, echo power unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

retrk_outp_3

binary int32	size: 4
Retracker output 3: LRM = amplitude estimate Pu [femto watts], SARin = power [femto watts], SAR = unused

retrk_outp_4

binary int32	size: 4
Retracker output 4: LRM = leading edge width (sigma c) [mBin], SARin = echo width, SAR = unused

retrk_outp_5

binary int32	size: 4
Retracker output 5: LRM = initialisation value (retracked range correction from ocog) [mm], SARin = retracked bin, SAR = unused

retrk_outp_6

binary int32	size: 4
Retracker output 6: LRM = reserved for U10 tbc, SARin = tail slope fw * bin^n.5, SAR = unused

retrk_outp_7

binary int32	size: 4
Retracker output 7: LRM = reserved for SSB tbc, SARin = tail delay [1/mBin], SAR = unused

retrk_outp_8

binary int32	size: 4
Retracker output 8: LRM = unused, SARin = leading edge slope [1/1000], SAR = unused

retrk_outp_9

binary int32	size: 4
Retracker output 9: LRM = unused, SARin = chi^2 [1e6], SAR = unused

retrk_outp_10

binary int32	size: 4
Retracker output 10: LRM = unused, SARin = minimum chi^2 [1e6], SAR = unused

retrk_outp_11

binary int32	size: 4
Retracker output 11: LRM = unused, SARin = phi constant (phase shift constant) [micro rad], SAR = unused

retrk_outp_12

binary int32	size: 4
Retracker output 12: LRM = unused, SARin = phi slope (phase fit slope) [micro rad/bin], SAR = unused

retrk_outp_13

binary int32	size: 4
Retracker output 13: LRM = retracked point [mBin], SARin = retracked range (note: not the correction) [mm], SAR = retracked point [mBin]

pow_echo_shp

binary int32 (double)	size: 4
Power echo shape parameter unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

beam_beh_params

binary record

size: 100

Beam behaviour parameters, defined as an array of 50 integers related to surface characteristics seen in the set of doppler echoes prior to stacking. As only the first 5 integers currently have been given a definition, the array is mapped to a record of 6 fields: the 5 meaningful integers, and a spare of 45*2 bytes.

field name

definition

stk_half_width

binary uint16	size: 2
Stack half width (standard deviation) (Stack beam/100)

stk_centre

binary uint16	size: 2
Stack centre (beam in stack at maximum of fitted Gaussian) (Stack beam/100)

stk_scl_amp

binary uint16	size: 2
Stack scaled amplitude

stk_skew

binary int16 (double)	size: 2
Stack skewness (Value/100 or -99900 if cannot be computed) converted unit: "" (multiply by 100/1)

stk_kurt

binary int16 (double)	size: 2
Stack kurtosis (Value/100 or -99900 if cannot be computed) converted unit: "" (multiply by 100/1)

stdev

binary uint16 (double)	size: 2
Standard deviation (as a function of angle) unit: "1e-6 rad" converted unit: "rad" (multiply by 1/1000000)

stk_center_angle

binary int16 (double)	size: 2
Stack centre angle (as a function of angle) unit: "1e-6 rad" converted unit: "rad" (multiply by 1/1000000)

spare

binary bytes	size: 86
spare

hidden: true

x_trk_angle

binary int32 (double)

size: 4

x-Track angle (interferometric angle computed at retrack point). This is the inferred cross-track angle corresponding to the retrack point of the SARin echo. It can be used in combination with the altitude to derive a horizontal offset from nadir. The latitude and longitude of measurement (field 6 and 7) include this offset. Set to zero for SAR and LRM.

unit: "1e-6 rad"

converted unit: "rad" (multiply by 1/1000000)

retrk_coh

binary int32 (double)	size: 4
Coherence at retrack point, set to 0 for SAR and LRM converted unit: "" (multiply by 1/1000)

interp_ocean_ht

binary int32	size: 4
Interpolated ocean height (or MSS). The ocean height interpolated from SAR data or read from an MSS model (tbd) which is used in conjunction with surface height to compute a freeboard unit: "mm"

freeb

binary int32	size: 4
Freeboard of the sea ice, set to 0 for SARin and LRM unit: "mm"

surf_ht_anom

binary int32	size: 4
Surface height anomaly unit: "mm"

interp_sea_surf_anom

binary int32	size: 4
Interpolated sea surface height anomaly unit: "mm"

ocean_ht_interp_err

binary uint16	size: 2
Interpolation error for ocean height unit: "mm"

num_interp_pts_fw

binary uint16	size: 2
Number of interpolation points used (forward)

num_interp_pts_bw

binary uint16	size: 2
Number of interpolation points used (backward)

interp_rad_fw

binary uint16	size: 2
Radius of interpolation (forward in time) unit: "1e-3 s"

interp_rad_bw

binary uint16	size: 2
Radius of interpolation (backward in time) unit: "1e-3 s"

interp_err_flag

binary uint16	size: 2
Interpolation error flag

meas_mode

binary uint32	size: 4
Measurement mode: 1 = LRM, 2 = SAR, 3 = SARin

meas_qual_flags

binary record

size: 4

Measurement quality flags

field name

definition

height_err

binary uint8	size: 0:1
Height error: 0 = no, 1 = yes

sig_0_err

binary uint8	size: 0:1
Sigma 0 backscatter error: 0 = no, 1 = yes

spare_1

binary bytes	size: 0:1
Spare

hidden: true

peak_err

binary uint8	size: 0:1
Peakiness error: 0 = no, 1 = yes

echo_shp_err

binary uint8	size: 0:1
Echo shape error: 0 = no, 1 = yes

x_trk_angle_err

binary uint8	size: 0:1
x-Track angle error: 0 = no, 1 = ambiguous angle

coh_err

binary uint8	size: 0:1
Coherence error: 0 = no, 1 = yes

arithm_err

binary uint8	size: 0:1
Arithmetic error: 0 = no, 1 = yes

wind_err

binary uint8	size: 0:1
Altimeter wind calculation error: 0 = no, 1 = yes

swh_err

binary uint8	size: 0:1
Significant wave height calculation error: 0 = no, 1 = yes

spare_2

binary bytes	size: 2:6
padding

hidden: true

retrkr_flags

binary record

size: 4

Retracker flags

field name

definition

retrkr_fail

binary uint8	size: 0:1
Overall retracker failure: 0 = no, 1 = yes

low_wavef_pow

binary uint8	size: 0:1
Low or zero power in waveform: 0 = no, 1 = yes

low_peak

binary uint8	size: 0:1
Low peakiness: 0 = no, 1 = yes

high_peak

binary uint8	size: 0:1
High peakiness: 0 = no, 1 = yes

high_noise

binary uint8	size: 0:1
High noise: 0 = no, 1 = yes

low_var

binary uint8	size: 0:1
Low variance: 0 = no, 1 = yes

bad_lead_edge

binary uint8	size: 0:1
Bad leading edge: 0 = no, 1 = yes

retrk_pos_oor

binary uint8	size: 0:1
Retrack position out of range: 0 = no, 1 = yes

abn_beam_beh_params

binary uint8	size: 0:1
Abnormal beam behaviour parameters: 0 = no, 1 = yes

spare_9

binary bytes	size: 0:1
spare (reserved for SWH)

hidden: true

spare_10

binary bytes	size: 0:1
spare (reserved for SWH)

hidden: true

spare_11

binary bytes	size: 0:1
spare (reserved for U10)

hidden: true

spare_12

binary bytes	size: 0:1
spare (reserved for SSB)

hidden: true

spare_13

binary bytes	size: 0:1
spare

hidden: true

sarin_retrk_interp_fail

binary uint8	size: 0:1
SARin retrack interpolation failure: 0 = no, 1 = yes

sarin_low_coh

binary uint8	size: 0:1
SARin low coherence: 0 = no, 1 = yes

fit_failed

binary uint8	size: 0:1
Fit failed: 0 = no, 1 = yes

fdm_ocog_failed

binary uint8	size: 0:1
FDM OCOG failed: 0 = no, 1 = yes

poor_fit

binary uint8	size: 0:1
Poor Power fit: 0 = no, 1 = yes

poor_phase_fit

binary uint8	size: 0:1
Poor Phase fit: 0 = no, 1 = yes (SARIN mode only)

spare_20

binary bytes	size: 0:1
spare

hidden: true

spare_21

binary bytes	size: 0:1
spare

hidden: true

spare_22

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_23

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_24

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_25

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_26

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_27

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_28

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

spare_29

binary bytes	size: 0:1
spare (reserved for SAR)

hidden: true

retrk_cfi_ocean

binary uint8	size: 0:1
LRM retracker was CFI ocean: 0 = no, 1 = yes

retrk_cfi_ocog

binary uint8	size: 0:1
LRM retracker was OCOG: 0 = no, 1 = yes

ht_stat_flags

binary record

size: 4

Height status flags, indicate height corrections that were applied

field name

definition

corr_int_cal

binary uint8	size: 0:1
Corrected for internal calibration: 0 = no, 1 = yes

corr_rad_dopp

binary uint8	size: 0:1
Corrected for radial doppler: 0 = no, 1 = yes

corr_dry_tropo

binary uint8	size: 0:1
Corrected for dry troposphere: 0 = no, 1 = yes

corr_wet_tropo

binary uint8	size: 0:1
Corrected for wet troposphere: 0 = no, 1 = yes

corr_inv_barom

binary uint8	size: 0:1
Corrected for inverse barometer: 0 = no, 1 = yes

corr_high_freq_var

binary uint8	size: 0:1
Corrected for high frequency variability (Dynamic Atmospheric Correction): 0 = no, 1 = yes

corr_ion_gim

binary uint8	size: 0:1
Corrected for ionosphere (GIM): 0 = no, 1 = yes

corr_ion_mdl

binary uint8	size: 0:1
Corrected for ionosphere (model): 0 = no, 1 = yes

ocean_tide_1_used

binary uint8	size: 0:1
Ocean tide 1 used: 0 = no, 1 = yes

ocean_tide_2_used

binary uint8	size: 0:1
Ocean tide 2 used: 0 = no, 1 = yes

ocean_load_tide_used

binary uint8	size: 0:1
Ocean loading tide used: 0 = no, 1 = yes

sol_earth_tide_used

binary uint8	size: 0:1
Solid earth tide used: 0 = no, 1 = yes

geocen_pol_tide_used

binary uint8	size: 0:1
Geocentric polar tide used: 0 = no, 1 = yes

slp_dopp_corr

binary uint8	size: 0:1
Slope doppler corrected: 0 = no, 1 = yes

spec_win_offs_app

binary uint8	size: 0:1
Mode specific window offset applied: 0 = no, 1 = yes

sar_retrkr_app

binary uint8	size: 0:1
SAR retracker applied: 0 = no, 1 = yes

sarin_retrkr_app

binary uint8	size: 0:1
SARin retracker applied: 0 = no, 1 = yes

lrm_retrkr_app

binary uint8	size: 0:1
LRM retracker applied: 0 = no, 1 = yes

lrm_ocean_bias_app

binary uint8	size: 0:1
LRM ocean bias applied: 0 = no, 1 = yes

lrm_ice_bias_app

binary uint8	size: 0:1
LRM ice bias applied: 0 = no, 1 = yes

sar_ocean_bias_app

binary uint8	size: 0:1
SAR ocean bias applied: 0 = no, 1 = yes

sar_ice_bias_app

binary uint8	size: 0:1
SAR ice bias applied: 0 = no, 1 = yes

sarin_ocean_bias_app

binary uint8	size: 0:1
SARin ocean bias applied: 0 = no, 1 = yes

sarin_ice_bias_app

binary uint8	size: 0:1
SARin ice bias applied: 0 = no, 1 = yes

lrm_slp_mdl_valid

binary uint8	size: 0:1
LRM slope model data valid: 0 = no, 1 = yes

sarin_basel

binary uint8	size: 0:1
SARin baseline bag: 0 = no, 1 = yes

sarin_oor

binary uint8	size: 0:1
SARin out of range: 0 = no, 1 = yes

sarin_bad_vel

binary uint8	size: 0:1
SARin bad velocity: 0 = no, 1 = yes

ssb_used

binary uint8	size: 0:1
Sea-state bias used: 0 = no, 1 = yes

spare

binary bytes	size: 0:2
padding

hidden: true

failure

binary uint8	size: 0:1
Failure: 0 = no, 1 = yes

freeb_stat_flags

binary record

size: 4

SAR freeboard status flags, indicate the availability and reliability of the freeboard measurement

field name

definition

freeb_meas_unavail

binary uint8	size: 0:1
Freeboard measurement unavailable: 0 = no, 1 = yes

freeb_meas_unrel

binary uint8	size: 0:1
Freeboard measurement unreliable: 0 = no, 1 = yes

freeb_meas_north

binary uint8	size: 0:1
Freeboard measurement is in nothern geographical boundary: 0 = no, 1 = yes

freeb_meas_south

binary uint8	size: 0:1
Freeboard measurement is in southern geographical boundary: 0 = no, 1 = yes

spare

binary bytes	size: 3:4
spare (tbd)

hidden: true

num_avg

binary uint16

size: 2

Number of echoes or beams averaged. In LRM mode this is the number of echoes which have been averaged to make one measurement (normally). In SAR and SARin mode, it is the number of doppler beams which have been stacked to derive each measurement. Near the beginning and end of each sectin of SAR or SARin mode operation, this number will reduce below the nominal value and there is a corresponding decrease in the signal to noise ratio of the waveform.

spare_1

binary bytes	size: 2
spare (reserved for wind speed)

hidden: true

spare_2

binary bytes	size: 12
spare

hidden: true

ice_conc

binary int32 (double)	size: 4
Ice concentration parameter, a percentage estimate of sea ice concentration merged from model data unit: "1e-3 %" converted unit: "%" (multiply by 1/1000)

snow_depth

binary int32	size: 4
Snow depth unit: "mm"

snow_density

binary int32	size: 4
Snow density unit: "kg/m3"

discr_res

binary int32	size: 4
Discriminator result: 1 = LRM undefined, 2 = LRM ocean, 3 = LRM land ice plateau, 101 = SARin undefined, 102 = SARin altimeter mode, 201 = SAR undefined, 202 = SAR ocean, 203 = SAR sea ice, 204 = SAR leads

discr_param_1

binary int32 (double)	size: 4
SARin discriminator parameter 1 = total power unit: "1e-18W" converted unit: "W" (multiply by 1/1000000000000000)

discr_param_2

binary int32 (double)	size: 4
SARin discriminator parameter 2 = max power unit: "1e-18W" converted unit: "W" (multiply by 1/1000000000000000)

discr_param_3

binary int32 (double)	size: 4
SARin discriminator parameter 3 = mean power unit: "1e-18W" converted unit: "W" (multiply by 1/1000000000000000)

discr_param_4

binary int32 (double)	size: 4
SARin discriminator parameter 4 = bin with max power converted unit: "" (multiply by 1/1000)

discr_param_5

binary int32 (double)	size: 4
SARin discriminator parameter 5 = bin of half max power converted unit: "" (multiply by 1/1000)

discr_param_6

binary int32 (double)	size: 4
SARin discriminator parameter 6 = max coherence converted unit: "" (multiply by 1/1000)

discr_param_7

binary int32 (double)	size: 4
SARin discriminator parameter 7 = bin with max coherence converted unit: "" (multiply by 1/1000)

discr_param_8

binary int32 (double)	size: 4
SARin discriminator parameter 8 = first power bin converted unit: "" (multiply by 1/1000)

discr_param_9

binary int32 (double)	size: 4
SARin discriminator parameter 9 = last power bin converted unit: "" (multiply by 1/1000)

discr_param_10

binary int32	size: 4
SARin discriminator parameter 10 = reserved (tbd)

discr_stat_flags

binary record

size: 4

Discriminator status flags

field name

definition

overall_discr_fail

binary uint8	size: 0:1
Overall discriminator failure: 0 = no, 1 = yes

lrm_discr_flags

binary uint8	size: 0:1
LRM discriminator flags TBD: 0 = no, 1 = yes

spare_1

binary bytes	size: 1
spare (reserved for LRM, set to 0)

hidden: true

sarin_low_var

binary uint8	size: 0:1
SARin low variance: 0 = no, 1 = yes

sarin_bad_lead_edge

binary uint8	size: 0:1
SARin bad leading edge: 0 = no, 1 = yes

sarin_high_noise

binary uint8	size: 0:1
SARin high noise: 0 = no, 1 = yes

sarin_low_peak

binary uint8	size: 0:1
SARin low peakiness: 0 = no, 1 = yes

sarin_high_peak

binary uint8	size: 0:1
SARin high peakiness: 0 = no, 1 = yes

sarin_low_pow

binary uint8	size: 0:1
SARin low power: 0 = no, 1 = yes

spare_2

binary bytes	size: 0:4
spare (reserved for SARin, set to 0)

hidden: true

sar_very_high_peak

binary uint8	size: 0:1
SAR very high peakiness: 0 = no, 1 = yes

sar_very_low_peak

binary uint8	size: 0:1
SAR very low peakiness: 0 = no, 1 = yes

sar_low_pow

binary uint8	size: 0:1
SAR low or zero power: 0 = no, 1 = yes

sar_abn_beam_beh_params

binary uint8	size: 0:1
SAR abnormal beam behaviour parameters: 0 = no, 1 = yes

sar_ice_conc_unavail

binary uint8	size: 0:1
SAR ice concentration unavailable: 0 = no, 1 = yes

sar_ice_conc_unrel

binary uint8	size: 0:1
SAR ice concentration unreliable: 0 = no, 1 = yes

sar_snr_low

binary uint8	size: 0:1
SAR signal to noise ratio too low: 0 = no, 1 = yes

wavef_wide

binary uint8	size: 0:1
Waveform too wide: 0 = no, 1 = yes

spare_3

binary bytes	size: 0:4
spare (tbd, set to 0)

hidden: true

slope_mdl_corr_att

binary int32 (double)	size: 4
Slope model correction attitude: attitude angle of nearest echoing point on the surface as determined from slope models in LRM processing. Set to 0 if model not present or invalid. Set to 0 for SAR and SARin, but may be used in the event of SARin mode with only 1 receive chain operating unit: "1e-6 degrees" converted unit: "degrees" (multiply by 1/1000000)

slope_mdl_corr_azi

binary int32 (double)	size: 4
Slope model correction azimuth, as for attitude unit: "1e-6 degrees" converted unit: "degrees" (multiply by 1/1000000)

uncorr_lat

binary int32 (double)	size: 4
Uncorrected latitude of the nadir position, allows for removal of the slope correction position if desired unit: "1e-7 degrees_north" converted unit: "degrees_north" (multiply by 1/10000000)

uncorr_lon

binary int32 (double)	size: 4
Uncorrected longitude of the nadir position, allows for removal of the slope correction position if desired unit: "1e-7 degrees_east" converted unit: "degrees_east" (multiply by 1/10000000)

ambg_ind

binary record

size: 4

Ambiguity indicator, to indicate the case where the interferometric angle may be ambiguous due to phase wrapping.

field name

definition

overall_ambg

binary uint8	size: 0:1
Overall ambiguity: 0 = no, 1 = yes

tdb_ambg

binary uint8	size: 0:1
TDB ambiguity: 0 = no, 1 = yes

spare_1

binary bytes	size: 1
padding

hidden: true

dem_unavail

binary uint8	size: 0:1
DEM not available: 0 = no, 1 = yes

diff_elv

binary uint8	size: 0:1
Different elevations: 0 = no, 1 = yes

spare_2

binary bytes	size: 2:4
padding

hidden: true

mss_from_mdl

binary int32	size: 4
MSS from the ocean model supplied in the CFI library unit: "mm"

geoid_from_mdl

binary int32	size: 4
Geoid from the geoid model supplied in the CFI library unit: "mm"

depth_elev_model

binary int32	size: 4
Ocean depth / land elevation from model unit: "mm"

dem_elv_from_mdl

binary int32	size: 4
DEM elevation, interpolated from a DEM (model tbd) to act as a check against SARin derived elevation. Set to 0 for LRM and SAR. unit: "mm"

dem_mdl_id

binary uint32	size: 4
DEM identifier, to identify the DEM model used for SARin

spare_3

binary bytes	size: 16
spare

hidden: true

dry_tropo_corr

binary int32	size: 4
Dry tropospheric correction unit: "mm"

wet_tropo_corr

binary int32	size: 4
Wet tropospheric correction unit: "mm"

inv_barom_corr

binary int32	size: 4
Inverse barometric correction unit: "mm"

high_freq_var_corr

binary int32	size: 4
High frequency variability correction (Dynamic Atmospheric Correction) unit: "mm"

ion_corr_gim

binary int32	size: 4
GIM ionospheric correction unit: "mm"

ion_corr_mdl

binary int32	size: 4
Model ionospheric correction unit: "mm"

ocean_tide

binary int32	size: 4
Ocean tide (component of total ocean tide) unit: "mm"

lp_eq_ocean_tide

binary int32	size: 4
Long period equilibrium ocean tide (component of total ocean tide) unit: "mm"

ocean_load_tide

binary int32	size: 4
Ocean loading tide unit: "mm"

sol_earth_tide

binary int32	size: 4
Solid earth tide unit: "mm"

geocen_pol_tide

binary int32	size: 4
Geocentric polar tide unit: "mm"

surf_type

binary uint32	size: 4
Surface type flag, enumerated key to classify surface at nadir

corr_stat_flags

binary record

size: 4

Correction status flags, indicate which correction algorithms have been called

field name

definition

dry_tropo_corr_call

binary uint8	size: 0:1
Dry tropospheric correction called: 0 = no, 1 = yes

wet_tropo_corr_call

binary uint8	size: 0:1
Wet tropospheric correction called: 0 = no, 1 = yes

inv_barom_corr_call

binary uint8	size: 0:1
Inverse barometric correction called: 0 = no, 1 = yes

high_freq_var_corr_call

binary uint8	size: 0:1
High Frequency Variability correction called: 0 = no, 1 = yes

ion_gim_corr_call

binary uint8	size: 0:1
Ionospheric (GIM) correction called: 0 = no, 1 = yes

ion_mdl_corr_call

binary uint8	size: 0:1
Ionospheric (model) correction called: 0 = no, 1 = yes

ocean_tide_call

binary uint8	size: 0:1
Ocean tide called: 0 = no, 1 = yes

lp_eq_ocean_tide_call

binary uint8	size: 0:1
Long period equilibrium ocean tide called: 0 = no, 1 = yes

ocean_load_tide_call

binary uint8	size: 0:1
Ocean loading tide called: 0 = no, 1 = yes

sol_earth_tide_call

binary uint8	size: 0:1
Solid earth tide called: 0 = no, 1 = yes

geocen_pol_tide_call

binary uint8	size: 0:1
Geocentric polar tide called: 0 = no, 1 = yes

surf_type_flag_call

binary uint8	size: 0:1
Surface type flag called: 0 = no, 1 = yes

ice_conc_mdl_call

binary uint8	size: 0:1
Ice concentration model called: 0 = no, 1 = yes

snow_depth_mdl_call

binary uint8	size: 0:1
Snow depth model called: 0 = no, 1 = yes

snow_density_mdl_call

binary uint8	size: 0:1
Snow density model called: 0 = no, 1 = yes

mss_mdl_call

binary uint8	size: 0:1
MSS model called: 0 = no, 1 = yes

geoid_mdl_call

binary uint8	size: 0:1
Geoid model called: 0 = no, 1 = yes

odle_mdl_call

binary uint8	size: 0:1
ODLE model called: 0 = no, 1 = yes

dem_mdl_call

binary uint8	size: 0:1
DEM model called: 0 = no, 1 = yes

slp_mdl_call

binary uint8	size: 0:1
Slope model called: 0 = no, 1 = yes

ssb_mdl_call

binary uint8	size: 0:1
Sea-state bias model called: 0 = no, 1 = yes

spare

binary bytes	size: 1:3
spare (reserved, set to 0)

hidden: true

corr_err_flags

binary record

size: 4

Correction error flags, indicate if a correction algorithm returned an error when called

field name

definition

dry_tropo_corr_err

binary uint8	size: 0:1
Dry tropospheric correction error: 0 = OK, 1 = error

wet_tropo_corr_err

binary uint8	size: 0:1
Wet tropospheric correction error: 0 = OK, 1 = error

inv_barom_corr_err

binary uint8	size: 0:1
Inverse barometric correction error: 0 = OK, 1 = error

high_freq_var_corr_err

binary uint8	size: 0:1
High frequency variability correction error: 0 = OK, 1 = error

ion_gim_corr_err

binary uint8	size: 0:1
Ionospheric (GIM) correction error: 0 = OK, 1 = error

ion_mdl_corr_err

binary uint8	size: 0:1
Ionospheric (model) correction error: 0 = OK, 1 = error

ocean_tide_err

binary uint8	size: 0:1
Ocean tide error: 0 = OK, 1 = error

lp_eq_ocean_tide_err

binary uint8	size: 0:1
Long period equilibrium ocean tide error: 0 = OK, 1 = error

ocean_load_tide_err

binary uint8	size: 0:1
Ocean loading tide error: 0 = OK, 1 = error

sol_earth_tide_err

binary uint8	size: 0:1
Solid earth tide error: 0 = OK, 1 = error

geocen_pol_tide_err

binary uint8	size: 0:1
Geocentric polar tide error: 0 = OK, 1 = error

surf_type_err

binary uint8	size: 0:1
Surface type error: 0 = OK, 1 = error

ice_conc_err

binary uint8	size: 0:1
Ice concentration error: 0 = OK, 1 = error

snow_depth_err

binary uint8	size: 0:1
Snow depth error: 0 = OK, 1 = error

snow_density_err

binary uint8	size: 0:1
Snow density error: 0 = OK, 1 = error

mss_mdl_err

binary uint8	size: 0:1
MSS model error: 0 = OK, 1 = error

geoid_mdl_err

binary uint8	size: 0:1
Geoid model error: 0 = OK, 1 = error

odle_mdl_err

binary uint8	size: 0:1
ODLE model error: 0 = OK, 1 = error

dem_mdl_err

binary uint8	size: 0:1
DEM model error: 0 = OK, 1 = error

slope_mdl_err

binary uint8	size: 0:1
Slope model error: 0 = OK, 1 = error

ssb_mdl_err

binary uint8	size: 0:1
Sea-state bias model error: 0 = OK, 1 = error

spare

binary bytes	size: 1:3
spare (reserved, set to 0)

hidden: true

sea_state_bias

binary int32	size: 4
Sea state bias (EM bias) unit: "mm"

spare_4

binary bytes	size: 8
spare

hidden: true

dopp_range_corr

binary int32	size: 4
Doppler range correction (incl. slope) unit: "mm"

instr_txrx_range_corr

binary int32	size: 4
Instrument range correction (tx-rx antenna) unit: "mm"

instr_rx_range_corr

binary int32	size: 4
Instrument range correction (rx only antenna) unit: "mm"

instr_sig_0_txrx_corr

binary int32 (double)	size: 4
Instrument sigma 0 correction (tx-rx antenna) unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

instr_sig_0_rx_corr

binary int32 (double)	size: 4
Instrument sigma 0 correction (rx only antenna) unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

100

int_phase_corr

binary int32 (double)	size: 4
Internal phase correction unit: "1e-3 rad" converted unit: "rad" (multiply by 1/1000)

101

ext_phase_corr

binary int32 (double)	size: 4
External phase correction unit: "1e-3 rad" converted unit: "rad" (multiply by 1/1000)

102

noise_pow_meas

binary int32 (double)	size: 4
Noise power measurement unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

103

spare_5

binary bytes	size: 12
spare

hidden: true