RA2_OCEAN_DATA_FOR_LEVEL_2

binary record ""

size: 356

Ra2 - MDS

field name

definition

dsr_time

binary time

size: 12

MDSR Time stamp. Time fields based on UTC are computed for each record and referred to the center of the averaged waveform

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"

quality_flag

binary int8	size: 1
Quality Indicator (-1 for blank MDSR, 0 otherwise)

spare_1

binary bytes	size: 3
Spare

hidden: true

lat

binary int32 (double)	size: 4
Geodetic Latitude (positive N, negative S) unit: "1e-6 degrees_north" converted unit: "degrees_north" (multiply by 1/1000000)

lon

binary int32 (double)	size: 4
Longitude (positive E, 0 at Greenwich, negative W) unit: "1e-6 degrees_east" converted unit: "degrees_east" (multiply by 1/1000000)

src_pack_cnt

binary uint32	size: 4
Source Packet Counter

instr_mode_id_flags

binary uint32	size: 4
Instrument Mode ID

meas_conf_data_flags

binary uint32	size: 4
Measurement Confidence Data

alt_cog_ellip

binary uint32	size: 4
Altitude of CoG above reference ellipsoid unit: "mm"

instant_alt_rate

binary int16	size: 2
Instantaneous altitude rate unit: "mm"

spare_2

binary bytes	size: 6
Spare

hidden: true

ku_band_ocean_range

binary uint32	size: 4
Ku-band ocean range unit: "mm"

s_band_ocean_range

binary uint32	size: 4
S-band ocean range unit: "mm"

sd_18hz_ku_ocean

binary uint16	size: 2
Standard deviation of 18 Hz Ku-band ocean range unit: "mm"

sd_18hz_s_ocean

binary uint16	size: 2
Standard deviation of 18 Hz S-band ocean range unit: "mm"

num_18hz_ku_ocean

binary uint16	size: 2
Number of 18 Hz valid points for Ku-band ocean range

num_18hz_s_ocean

binary uint16	size: 2
Number of 18 Hz valid points for S-band ocean range

spare_3

binary bytes	size: 8
Spare

hidden: true

mod_dry_tropo_corr

binary int16	size: 2
Model dry tropospheric correction unit: "mm"

inv_barom_corr

binary int16	size: 2
Inverted barometer correction unit: "mm"

mod_wet_tropo_corr

binary int16	size: 2
Model wet tropospheric correction unit: "mm"

mwr_wet_tropo_corr

binary int16	size: 2
MWR derived wet tropospheric correction unit: "mm"

ra2_ion_corr_ku

binary int16	size: 2
RA2 ionospheric correction on Ku-band unit: "mm"

ra2_ion_corr_s

binary int16	size: 2
RA2 ionospheric correction on S-band unit: "mm"

ion_corr_doris_ku

binary int16	size: 2
Ionospheric correction from DORIS on Ku-band unit: "mm"

ion_corr_doris_s

binary int16	size: 2
Ionospheric correction from DORIS on S-band unit: "mm"

ion_corr_mod_ku

binary int16	size: 2
Ionospheric correction from model on Ku-band unit: "mm"

ion_corr_mod_s

binary int16	size: 2
Ionospheric correction from model on S-band unit: "mm"

sea_bias_ku

binary int16	size: 2
Sea state bias on Ku-band unit: "mm"

sea_bias_s

binary int16	size: 2
Sea state bias on S-band unit: "mm"

spare_4

binary bytes	size: 12
Spare

hidden: true

square_ku_sig_wv_ht

binary int32	size: 4
Square of Ku-band Significant wave height unit: "mm2"

square_s_sig_wv_ht

binary int32	size: 4
Square of S-band Significant wave height unit: "mm2"

ku_sig_wv_ht

binary int16	size: 2
Ku-band Significant wave height unit: "mm"

s_sig_wv_ht

binary int16	size: 2
S-band Significant wave height unit: "mm"

sd_18hz_ku_swh

binary int16	size: 2
Standard deviation of 18 Hz Ku-band SWH unit: "mm"

sd_18hz_s_swh

binary int16	size: 2
Standard deviation of 18 Hz S-band SWH unit: "mm"

num_18hz_ku_ocean_swh

binary uint16	size: 2
Number of 18 Hz valid points for Ku-band ocean SWH

num_18hz_s_ocean_swh

binary uint16	size: 2
Number of 18 Hz valid points for S-band ocean SWH

ku_ocean_bscat_coeff

binary int16 (double)	size: 2
Ku-band corrected Ocean backscatter coefficient unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

s_ocean_bscat_coeff

binary int16 (double)	size: 2
S-band corrected Ocean backscatter coefficient unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

sd_18hz_ku_ocean_bscat

binary int16 (double)	size: 2
Standard deviation of 18 Hz Ku-band ocean backscatter coefficient unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

sd_18hz_s_ocean_bscat

binary int16 (double)	size: 2
Standard deviation of 18 Hz S-band ocean backscatter coefficient unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

num_18hz_ku_ocean_bscat

binary uint16	size: 2
Number of 18 Hz valid points for Ku-band ocean backscatter coefficient

num_18hz_s_ocean_bscat

binary uint16	size: 2
Number of 18 Hz valid points for S-band ocean backscatter coefficient

spare_5

binary bytes	size: 40
Spare

hidden: true

ku_net_instr_corr_agc

binary int16 (double)	size: 2
Ku-band net instrument correction for AGC unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

s_net_instr_corr_agc

binary int16 (double)	size: 2
S-band net instrument correction for AGC unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

ku_atm_atten_corr

binary int16 (double)	size: 2
Ku-band atmospheric attenuation correction unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

s_atm_atten_corr

binary int16 (double)	size: 2
S-band atmospheric attenuation correction unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

ku_rain_atten

binary int32 (double)	size: 4
Ku-band rain attenuation unit: "1e-2 dB" converted unit: "dB" (multiply by 1/100)

off_nad_ang_platf

binary int16 (double)	size: 2
Square of the satellite off-nadir angle from platform data unit: "1e-4 degrees2" converted unit: "degrees2" (multiply by 1/10000)

off_nad_ang_wvform

binary int16 (double)	size: 2
Square of the satellite off-nadir angle from waveform data unit: "1e-4 degrees2" converted unit: "degrees2" (multiply by 1/10000)

m_sea_surf_ht

binary int32	size: 4
Mean sea-surface height unit: "mm"

geoid_ht

binary int32	size: 4
Geoid height unit: "mm"

ocean_depland_elev

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

tot_geocen_ocn_tide_ht_sol1

binary int16	size: 2
Total geocentric ocean tide height (solution 1) unit: "mm"

tot_geocen_ocn_tide_ht_sol2

binary int16	size: 2
Total geocentric ocean tide height (solution 2) unit: "mm"

long_period_ocn_tide_ht

binary int16	size: 2
Long period Tide height unit: "mm"

tidal_load_ht_sol2

binary int16	size: 2
Tidal loading height (solution 2) unit: "mm"

solid_earth_tide_ht

binary int16	size: 2
Solid earth tide height unit: "mm"

geocen_pole_tide_ht

binary int16	size: 2
Geocentric pole tide height unit: "mm"

mod_surf_atm_pres

binary int16 (double)	size: 2
Model surface atmospheric pressure unit: "10 Pa" converted unit: "Pa" (multiply by 10/1)

mwr_wvapour_cont

binary int16 (double)	size: 2
MWR water vapour content unit: "1e-2 g/cm2" converted unit: "g/cm2" (multiply by 1/100)

mwr_liq_water_cont

binary int16 (double)	size: 2
MWR liquid water content unit: "1e-2 g/cm2" converted unit: "g/cm2" (multiply by 1/100)

ra2_elec_cont

binary int16 (double)	size: 2
RA2 Total electron content (1 TECU = 1e16 electrons / m^2) unit: "1e15/m2" converted unit: "1e16/m2" (multiply by 1/10)

ra2_wind_sp

binary int16	size: 2
RA2 wind speed unit: "mm/s"

mod_wind_sp_u

binary int16	size: 2
u component of the model wind vector unit: "mm/s"

mod_wind_sp_v

binary int16	size: 2
v component of the model wind vector unit: "mm/s"

tidal_load_ht_sol1

binary int16	size: 2
Tidal loading height (solution 1) unit: "mm"

spare_6

binary bytes	size: 8
Spare

hidden: true

interpole_238_temp_mwr

binary int16 (double)	size: 2
Interpolated 23.8 GHz brightness temperature from MWR unit: "1e-2 K" converted unit: "K" (multiply by 1/100)

interpole_365_temp_mwr

binary int16 (double)	size: 2
Interpolated 36.5 GHz brightness temperature from MWR unit: "1e-2 K" converted unit: "K" (multiply by 1/100)

interpole_sd_238_temp_mwr

binary int16 (double)	size: 2
Interpolated standard deviation of MWR 23.8 GHz brightness temperature unit: "1e-2 K" converted unit: "K" (multiply by 1/100)

interpole_sd_365_temp_mwr

binary int16 (double)	size: 2
Interpolated standard deviation of MWR 36.5 GHz brightness temperature unit: "1e-2 K" converted unit: "K" (multiply by 1/100)

spare_7

binary bytes	size: 2
Spare

hidden: true

ave_ku_chirp

binary uint16	size: 2
Average Ku chirp band. Ku chirp band value is associated with the minimum of the 20 elementary chirp band indexes in the source packet. Possible values: 0 = there is at least one record at 320 MHz, 1 = there is at least one record at 80 MHz (and the others are at 20 MHz), 2 = all input records are at 20 MHz

unused_bits_1

binary bytes	size: 3
Unused ku_chirp_id_flags bits

hidden: true

ku_chirp_id_flags

binary array[20]

size: 5

Ku chirp band identifiers. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:2

Possible values: 0 = 320 MHz (Ku), 1 = 80 MHz (Ku), 2 = 20 MHz (Ku). Default values (bits set to 1) are output in the event of non tracking records (records not in Tracking, Preset Tracking or Preset Loop Output), wherever the sum of all Ku and S waveforms samples are set to 0, or if Ku AGC or Ku onboard Rx delay are out of bounds

unused_bits_2

binary bytes	size: 1:4
Unused error_flag_chirp_id_flags bits

hidden: true

error_flag_chirp_id_flags

binary array[20]

size: 2:4

Error flag for chirp band id. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:1

0 = valid measurement, 1 = invalid

instr_flags

binary record

size: 4

Instrument flag

field name

definition

spare

binary bytes	size: 3
spare

hidden: true

s_band_anomaly

binary uint32	size: 0:1
Flag for S-band anomaly

flight_cal_corr_s

binary uint32	size: 0:1
Flag for availability of S flight calibration correction

flight_cal_corr_ku

binary uint32	size: 0:1
Flag for availability of Ku flight calibration correction

ptr_cal_band

binary uint32	size: 0:3
PTR calibration band identifier field

decoded_redundancy_error

binary uint32	size: 0:2
Error flag for decoded redundancy flags

unused_bits_3

binary bytes	size: 3
Unused fault_id_flags bits

hidden: true

fault_id_flags

binary array[20]

size: 5

Fault indentifiers. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:2

0 = valid measurement, 1 = invalid. Unused bits are set to 1

spare_8

binary bytes	size: 8
Spare

hidden: true

unused_bits_4

binary bytes	size: 3
Unused wvfrom_fault_id_flags bits

hidden: true

wvfrom_fault_id_flags

binary array[20]

size: 5

Waveforms samples fault indentifiers. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:2

unused_bits_5

binary bytes	size: 2
Unused instr_id_data_level_flags bits

hidden: true

instr_id_data_level_flags

binary array[20]

size: 10

Instrument mode ID at data block level. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:4

0 = spare, 1 = acquisition, 2 = Tracking, 3 = IF Cal, 4 = BITE RF, 5 = BITE DGT, 6 = Preset Tracking, 7 = Preset Loop Output, 8 = Alignment failed. Default values (bits set to 1) are output in the event of non tracking records (records not in Tracking, Preset Tracking or Preset Loop Output), wherever the sum of all Ku and S waveform samples are set to 0, or if Ku AGC or Ku onboard Rx delay are out of bounds

num_meas_ku_calibr

binary uint16	size: 2
No. of measures for Ku flight calibration factor evaluation

num_meas_s_calibr

binary uint16	size: 2
No. of measures for S flight calibration factor evaluation

mwr_instr_flags

binary record

size: 2

MWR instrument flag

field name

definition

tmp_flg

binary uint8	size: 0:1
Indicates uniformity of CEU temperature: 0 = temperature consistency, 1 = temperature inconsistency

obdh_flg

binary uint8	size: 0:1
flag to indicate data is missing: 0 = no error, 1 = error

red_flg

binary uint8	size: 0:1
Redundancy indicator ICU channel: 0 = normal channel, 1 = redundant channel

pbp_flg

binary uint8	size: 0:1
Power Bus Protection indicator: 0 = no protection, 1 = protection

oop_flg

binary uint8	size: 0:1
Overvoltage/Overload protection indicator: 0 = no protection, 1 = protection

spare

binary bytes	size: 1:3
spare

hidden: true

spare_9

binary bytes	size: 6
Spare

hidden: true

ku_peak

binary uint16 (double)	size: 2
1 Hz Ku-band peakiness unit: "1e-3" converted unit: "" (multiply by 1/1000)

s_peak

binary uint16 (double)	size: 2
1 Hz S-band peakiness unit: "1e-3" converted unit: "" (multiply by 1/1000)

spare_11

binary bytes	size: 12
Spare

hidden: true

unused_bits_6

binary bytes	size: 1:4
Unused ku_ocean_retrk_qua_flags bits

hidden: true

ku_ocean_retrk_qua_flags

binary array[20]

size: 2:4

Ku-band ocean retracking quality. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:1

0 = valid, 1 = invalid

unused_bits_7

binary bytes	size: 1:4
Unused s_ocean_retrk_qua_flags bits

hidden: true

s_ocean_retrk_qua_flags

binary array[20]

size: 2:4

S-band ocean retracking quality. Elements are in reverse order: the last array element refers to the first data block

binary uint8 size: 0:1

0 = valid, 1 = invalid

100

altim_landocean_flag

binary uint16	size: 2
Altimeter surface type flag. The flag is based on a land/sea mask file and has the following four meanings: 0 = oceans or semi-enclosed seas, 1 = enclosed seas or lakes, 2 = continental ice, 3 = land

101

radio_landocean_flag

binary uint16	size: 2
Radiometer land/ocean type flag. This flag has two states: 0 = Ocean, 1 = Land. In NRT, when MWR data are not available, this flag is set to its maximum value. In OFL, when MWR data are not available, this flag is set to its default value which is 1 (land)

102

mwr_qua_interp_flag

binary uint16	size: 2
MWR Quality interpolation flag. 0 = interpolation was OK with no gap between the two MWR measurements around the RA-2 time, 1 = interpolation was OK but there was a gap between the two selected MWR measurements, 2 = extrapolation was used, 3 = neither interpolation nor extrapolation could be used. The default value (3 in NRT, and 0 in OFL) is output when no MWR data is available

103

rain_flag

binary uint16	size: 2
Altimeter rain flag. 1 = rain (the expected Ku/S-band rain-free relationship minus the uncorrected Ku ocean backscattering coefficient, and if the MWR liquid water content, interpolated to RA-2 time, are bigger than certain thresholds), 0 = no rain (otherwise)

104

interpole_flag

binary record

size: 2

interpolation flag

field name

definition

spare

binary bytes	size: 1:4
spare

hidden: true

meteo_interp

binary uint8	size: 0:1
meteorological data interpolation flag (0 = 4 points over ocean, 1 = less than 4 points)

ocean_tide_sol2

binary uint8	size: 0:1
ocean tide solution 2 interpolation flag (0 = 4 points over ocean, 1 = less than 4 points)

ocean_tide_sol1

binary uint8	size: 0:1
ocean tide solution 1 interpolation flag (0 = 4 points over ocean, 1 = less than 4 points)

mss

binary uint8	size: 0:1
MSS interpolation flag (0 = good, 1 = bad)

105

spare_12

binary bytes	size: 2
Spare

hidden: true