IASI_MDR_L2_v2

binary record ""

field name

definition

RECORD_HEADER

binary record "REC_HEAD"	size: 20

DEGRADED_INST_MDR

binary uint8	size: 1
Quality of MDR has been degraded from nominal due to an instrument degradation

DEGRADED_PROC_MDR

binary uint8	size: 1
Quality of MDR has been degraded from nominal due to a processing degradation

ATMOSPHERIC_TEMPERATURE

binary array[120, dim_1]

Temperature (for 120 IFOV with up to 90 vertical levels)

dim_1: $NLT

binary uint16 (double) size: 2

unit: "1e-2 K"

converted unit: "K" (multiply by 1/100)

ATMOSPHERIC_WATER_VAPOUR

binary array[120, dim_1]

Water vapour (for 120 IFOV with up to 90 vertical levels)

dim_1: $NLQ

binary uint32 (double) size: 4

unit: "1e-6 kg/kg"

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

ATMOSPHERIC_OZONE

binary array[120, dim_1]

Ozone (for 120 IFOV with up to 10 vertical layers)

dim_1: $NLO

binary uint16 (double) size: 2

unit: "1e-7 kg/m2"

converted unit: "kg/m2" (multiply by 1/10000000)

INTEGRATED_OZONE

binary array[120]

size: 240

Integrated ozone (for 120 IFOV)

binary uint16 (double) size: 2

unit: "1e-7 kg/m2"

converted unit: "kg/m2" (multiply by 1/10000000)

NUMBER_SURFACE_TEMPS

binary array[120]

size: 120

Number of surface temperatures in IFOV

binary uint8 size: 1

SURFACE_TEMPERATURE

binary array[120, 2]

size: 480

Surface temperature (for 120 IFOV and up to 2 temperatures)

binary uint16 (double) size: 2

unit: "1e-2 K"

converted unit: "K" (multiply by 1/100)

INTEGRATED_N2O

binary array[120]

size: 240

Integrated N2O (for 120 IFOV)

binary uint16 (double) size: 2

unit: "1e-7 kg/m2"

converted unit: "kg/m2" (multiply by 1/10000000)

INTEGRATED_CO

binary array[120]

size: 240

Integrated CO (for 120 IFOV)

binary uint16 (double) size: 2

unit: "1e-7 kg/m2"

converted unit: "kg/m2" (multiply by 1/10000000)

INTEGRATED_CH4

binary array[120]

size: 240

Integrated CH4 (for 120 IFOV)

binary uint16 (double) size: 2

unit: "1e-5 kg/m2"

converted unit: "kg/m2" (multiply by 1/100000)

INTEGRATED_CO2

binary array[120]

size: 240

Integrated CO2 ( for 120 IFOV)

binary uint16 (double) size: 2

unit: "1e-3 kg/m2"

converted unit: "kg/m2" (multiply by 1/1000)

SURFACE_EMISSIVITY

binary array[120, dim_1]

Surface emissivity (for 120 IFOV with up to 20 wavelengths)

dim_1: $NEW

binary uint16 (double) size: 2

converted unit: "" (multiply by 1/100)

NUMBER_CLOUD_FORMATIONS

binary array[120]

size: 120

Number of cloud formations in IFOV

binary uint8 size: 1

FRACTIONAL_CLOUD_COVER

binary array[120, 3]

size: 720

Fractional cloud cover (for 120 IFOV with up to 3 cloud formations)

binary uint16 (double) size: 2

unit: "1e-2 %"

converted unit: "%" (multiply by 1/100)

CLOUD_TOP_TEMPERATURE

binary array[120, 3]

size: 720

Cloud top temperature (for 120 IFOV with up to 3 cloud formations)

binary uint16 (double) size: 2

unit: "1e-2 K"

converted unit: "K" (multiply by 1/100)

CLOUD_TOP_PRESSURE

binary array[120, 3]

size: 720

Cloud top pressure (for 120 IFOV with up to 3 cloud formations)

binary uint16 size: 2

unit: "Pa"

CLOUD_PHASE

binary array[120, 3]

size: 360

Cloud Phase (for 120 IFOV with up to 3 cloud formations) (0 = no cloud, 1 = liquid, 2 = ice, 3 = mixed)

binary uint8 size: 1

INSTRUMENT_MODE

binary uint8	size: 1

TIME_ATTITUDE

binary uint32	size: 4
Time Associated with Attitude Angles unit: "s"

ATITUDE_ANGLES

binary array[3]

size: 6

Attitude Angles: Roll, Pitch, Yaw

binary int16 (double) size: 2

unit: "1e-3 degrees"

converted unit: "degrees" (multiply by 1/1000)

NAVIGATION_STATUS

binary record

size: 4

field name

definition

spare_1

binary bytes	size: 1:7
Not used

hidden: true

EARTH_LOC_CORR

binary uint8	size: 0:1
Earth location corrected for Euler angles

EARTH_LOC_IND

binary uint8	size: 0:4
Earth location indicator (0 = earth location available, 1 = user ephemeris files older than 24 hours, 2 = no earth location available)

SPACECRAFT_ATT_CONTROL

binary uint8	size: 0:4
Spacecraft attitude control (0 = operating in YGC or nominal mode, 1 = operating in another mode, 2 = attitude exceeds nominal tolerance, 3 = both 1 and 2)

ATT_SMODE

binary uint8	size: 0:4
Attitude SMODE (0 = nominal mode, 1 = rate nulling mode, 2 = YGC mode, 3 = search mode, 4 = coast mode)

ATT_MODE

binary uint8	size: 0:4
Attitude mode (0 = nominal mode/no test, 1 = yaw axis test in progress, 2 = roll axis test in progress, 3 = pitch axis test in progress)

SPACECRAFT_ALTITUDE

binary uint32 (double)	size: 4
Spacecraft Altitude Above Reference Geoid (MSL) unit: "1e-1 km" converted unit: "km" (multiply by 1/10)

ANGULAR_RELATION

binary array[120, 4]

size: 960

Angular relationships: solar zenith angle, satellite zenith angle, solar azimuth angle, satellite azimuth angle for 120 IFOV

binary int16 (double) size: 2

unit: "1e-2 degrees"

converted unit: "degrees" (multiply by 1/100)

EARTH_LOCATION

binary array[120, 2]

size: 960

Earth Location: latitude, longitude of surface footprint (for 120 IFOV)

binary int32 (double) size: 4

unit: "1e-4 degrees"

converted unit: "degrees" (multiply by 1/10000)

FLG_ATOVCLR

binary array[120]

size: 120

Cloud flags for ATOVS products

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:5

Not used

hidden: true

1 CLOUD_INFO_INCOMPL

binary uint8 size: 0:1

ATOVS L2 cloud information is incomplete

2 FULL_CLOUD

binary uint8 size: 0:1

ATOVS L2 is completely cloudy

3 PART_CLOUD

binary uint8 size: 0:1

ATOVS L2 is partly cloudy

FLG_ATOVINS

binary array[120]

size: 120

Instruments used to produce ATOVS L2 product

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:4

Not used

hidden: true

1 HIRS_MISSING

binary uint8 size: 0:1

HIRS was missing in the retrieval

2 MHS_MISSING

binary uint8 size: 0:1

MHS was missing in the retrieval

3 AMSU_A2_MISSING

binary uint8 size: 0:1

AMSU-A2 was missing in the retrieval

4 AMSU_A1_MISSING

binary uint8 size: 0:1

AMSU-A1 was missing in the retrieval

FLG_ATOVCMP

binary array[120]

size: 120

Completeness of ATOVS products

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:4

Not used

hidden: true

1 ATOVS_L2_INCOMPL

binary uint8 size: 0:1

ATOVS level 2 is incomplete

2 MHS_L1_INCOMPL

binary uint8 size: 0:1

MHS level 1 is incomplete

3 AMSU_A2_L1_INCOMPL

binary uint8 size: 0:1

AMSU-A2 level 1 is incomplete

4 AMSU_A1_L1_INCOMPL

binary uint8 size: 0:1

AMSU-A1 level 1 is incomplete

FLG_ATOVINT

binary array[120]

size: 360

Interpolation of ATOVS to IASI

binary record size: 3

id field name definition

0 spare_1

binary bytes size: 0:6

Not used

hidden: true

1 MHS_1_NOT_CLOSE

binary uint8 size: 0:1

MHS Level 1 data from a single sounding, not very close to the IASI IFOV have been selected to match the IASI IFOV since no other soundings are available for an interpolation

2 MHS_2

binary uint8 size: 0:1

MHS Level 1 data from two soundings have been averaged to the IASI IFOV

3 MHS_3_PLUS

binary uint8 size: 0:1

MHS Level 1 data from three or more soundings have been interpolated to the IASI IFOV

4 MHS_1_CLOSE

binary uint8 size: 0:1

MHS Level 1 data from a single sounding are very close to the IASI IFOV and have been selected to match it

5 MHS_DATA_INCOMPL

binary uint8 size: 0:1

MHS Level 1 data are not available or incomplete for retrieval

6 AMSU_A_1_NOT_CLOSE

binary uint8 size: 0:1

AMSU-A Level 1 data from a single sounding, not very close to the IASI IFOV have been selected to match the IASI IFOV since no other soundings are available for an interpolation

7 AMSU_A_2

binary uint8 size: 0:1

AMSU-A Level 1 data from two soundings have been averaged to the IASI IFOV

8 AMSU_A_3_PLUS

binary uint8 size: 0:1

AMSU-A Level 1 data from three or more soundings have been interpolated to the IASI IFOV

9 AMSU_A_1_CLOSE

binary uint8 size: 0:1

AMSU-A Level 1 data from a single sounding are very close to the IASI IFOV and have been selected to match it

10 AMSU_A_RETR_INCOMPL

binary uint8 size: 0:1

AMSU-A data incomplete for retrieval

11 AMSU_A_CLOUD_INCOMPL

binary uint8 size: 0:1

AMSU-A data incomplete for cloud detection

12 AMSU_A_DATA_NOT_AVAIL

binary uint8 size: 0:1

AMSU-A data not available

13 ATOVS_1_NOT_CLOSE

binary uint8 size: 0:1

ATOVS Level 2 data from a single sounding, not very close to the IASI IFOV have been selected to match the IASI IFOV since no other soundings are available for an interpolation

14 ATOVS_2

binary uint8 size: 0:1

ATOVS Level 2 data from two soundings have been averaged to the IASI IFOV

15 ATOVS_3_PLUS

binary uint8 size: 0:1

ATOVS Level 2 data from three or more soundings have been interpolated to the IASI IFOV

16 ATOVS_1_CLOSE

binary uint8 size: 0:1

ATOVS Level 2 data from a single sounding are very close to the IASI IFOV and have been selected to match it

17 ATOVS_DATA_INCOMPL

binary uint8 size: 0:1

ATOVS L2 data incomplete

18 ATOVS_DATA_NOT_AVAIL

binary uint8 size: 0:1

ATOVS L2 data not available

FLG_AVHAVL

binary array[120]

size: 120

Completness flag for AVHRR products (0 = AVHRR mask has been created and data are available, 1 = AVHRR mask could not be created (missing side information), 2 = AVHRR data are only partly, but sufficiently available to fill the mask, 3 = AVHRR data are not or not sufficiently available to fill the mask)

binary uint8 size: 1

FLG_AVHBAD

binary array[120]

size: 120

Validation flag for AVHRR products

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:3

Not used

hidden: true

1 OOB_VALUES

binary uint8 size: 0:1

AVHRR products assume out of bounds values (not indicated by level 1 flags)

2 DEGR_QUAL

binary uint8 size: 0:1

AVHRR products are of degraded quality (not indicated by level 1 flags)

3 SIDE_INFO_MISS

binary uint8 size: 0:1

AVHRR side information is missing or corrupted (not indicated by level 1 flags)

4 MISSING

binary uint8 size: 0:1

AVHRR products are missing or corrupted (not indicated by level 1 flags)

5 DATA_DEGR_L1

binary uint8 size: 0:1

AVHRR data are degraded according to level 1 flags

FLG_CHNSEL

binary array[120]

size: 120

Channel selection (0 = No selection made or selection invalid, 1 = Selection of all IASI channels as per user-configuration, 2 = Selection of a subset of IASI channels due to lacking data, 3 = Selection of super channels as per user configuration, 4 = Selection of subset of super channels due to lacking data)

binary uint8 size: 1

FLG_CLDAVH

binary array[120]

size: 120

Number of cloud formations anaylsed in AVHRR (0 = No cloud formation has been identified, 1 = One cloud formation has been identified, 2 = Two cloud formations have been identified, 3 = Three cloud formations have been identified)

binary uint8 size: 1

FLG_CLDFRM

binary array[120]

size: 240

Number of cloud formations and origin of height assignment

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 0:3

Not used

hidden: true

1 HT_CLOUD_3_AMB

binary uint8 size: 0:1

Height assignment of third cloud formation is ambiguous

2 HT_CLOUD_2_AMB

binary uint8 size: 0:1

Height assignement of second cloud formation is ambiguous

3 HT_CLOUD_1_AMB

binary uint8 size: 0:1

Height assignment of first cloud formation is ambiguous

4 CLOUD_3_CLIM_HT

binary uint8 size: 0:1

Three cloud formations with climatological height assignment

5 CLOUD_2_CLM_HT

binary uint8 size: 0:1

Two cloud formations with climatological height assignment

6 CLOUD_1_CLM_HT

binary uint8 size: 0:1

One cloud formation with climatological height assignment

7 CLOUD_3_NWP_HT

binary uint8 size: 0:1

Three cloud formations with NWP forecast assignment

8 CLOUD_2_NWP_HT

binary uint8 size: 0:1

Two cloud formations with NWP forecast height assignment

9 CLOUD_1_NWP_HT

binary uint8 size: 0:1

One cloud formation with NWP forecast height assignment

10 CLOUD_3_ATOVS_HT

binary uint8 size: 0:1

Three cloud formations with ATOVS height assignment

11 CLOUD_2_ATOVS_HT

binary uint8 size: 0:1

Two cloud formations with ATOVS height assignment

12 CLOUD_1_ATOVS_HT

binary uint8 size: 0:1

One cloud formation with ATOVS height assignment

13 CLOUD_NO_HT

binary uint8 size: 0:1

Cloudy but no height assignment possible

FLG_CLDPHA

binary array[120]

size: 120

Cloud Phase (0 = The IASI IFOV is cloudfree, 1 = Phase of one cloud formation could be determined, 2 = Phases of two cloud formations could be determined, 3 = Phases of three cloud formations could be determined, 4 = The cloud phases could not be determined)

binary uint8 size: 1

FLG_CLDSUM

binary array[120]

size: 240

Summary indicating which instruments see clouds

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 0:7

Not used

hidden: true

1 IASI_ATOVS_CLOUD

binary uint8 size: 0:1

IASI/ATOVS indicate cloudy

2 IASI_ATOVS_PART_CLOUD

binary uint8 size: 0:1

IASI/ATOVS indicate partly cloudy

3 IASI_CLOUD

binary uint8 size: 0:1

IASI indicates cloudy

4 IASI_PART_CLOUD

binary uint8 size: 0:1

IASI indicates partly cloudy

5 AVHRR_CLOUD

binary uint8 size: 0:1

AVHRR indicates cloudy

6 AVHRR_PART_CLOUD

binary uint8 size: 0:1

AVHRR indicates partly cloudy

7 IASI_ATOVS_EXAM

binary uint8 size: 0:1

IASI/ATOVS have been examined for clouds

8 IASI_EXAM

binary uint8 size: 0:1

IASI has been examined for clouds

9 AVHRR_EXAM

binary uint8 size: 0:1

AVHRR has been examined for clouds

FLG_CLDTST

binary array[120]

size: 240

Cloud tests that are executed

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 1

Not used

hidden: true

1 EXEC_H

binary uint8 size: 0:1

Test H has been executed

2 EXEC_G

binary uint8 size: 0:1

Test G has been executed

3 EXEC_F

binary uint8 size: 0:1

Test F has been executed

4 EXEC_E

binary uint8 size: 0:1

Test E has been executed

5 EXEC_D

binary uint8 size: 0:1

Test D has been executed

6 EXEC_C

binary uint8 size: 0:1

Test C has been executed

7 EXEC_B

binary uint8 size: 0:1

Test B has been executed

8 EXEC_A

binary uint8 size: 0:1

Test A has been executed

FLG_DAYNIT

binary array[120]

size: 120

Discrimination between day and night (0 = Day, 1 = Night, 2 = Twilight)

binary uint8 size: 1

FLG_FGCHECK

binary array[120]

size: 240

Check whether first guess retrievals passed to iterative retrieval

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 0:7

Not used

hidden: true

1 CO2_OOB

binary uint8 size: 0:1

CO2 column is out of valid bounds

2 CH4_OOB

binary uint8 size: 0:1

CH4 column is out of valid bounds

3 N2O_OOB

binary uint8 size: 0:1

N2O column is out of valid bounds

4 CO_OOB

binary uint8 size: 0:1

CO column is out of bounds

5 SURF_EMISS_OOB

binary uint8 size: 0:1

Surface emissivity is out of valid bounds

6 SURF_TEMP_OOB

binary uint8 size: 0:1

Surface temperature is out of valid bounds

7 O3_PROF_OOB

binary uint8 size: 0:1

Ozone profile is out of valid bounds

8 H2O_VAP_PROF_OOB

binary uint8 size: 0:1

Water vapour profile is out of valid bounds

9 TEMP_PROF_OOB

binary uint8 size: 0:1

Temperature profile is out of valid bounds

FLG_FINCHC

binary array[120]

size: 480

Final choice of retrieval

binary record size: 4

id field name definition

0 spare_1

binary bytes size: 0:5

Not used

hidden: true

1 RETR_ABOVE_CLOUD

binary uint8 size: 0:1

Retrieval above cloud top

2 FULL_CLOUD_RETR_CLEAN

binary uint8 size: 0:1

Full cloudy retrieval with variational cloud clearing

3 FULL_CLOUD_RETR

binary uint8 size: 0:1

Full cloudy retrieval without cloud clearing

4 CLEAR_SKY_RETR

binary uint8 size: 0:1

Full clear sky retrieval

5 ITT_RETR_CO2

binary uint8 size: 0:1

Iterative retrieval for carbon dioxide

6 ITT_RETR_N2O

binary uint8 size: 0:1

Iterative retrieval for nitrous oxide

7 ITT_RETR_CH4

binary uint8 size: 0:1

Iterative retrieval for methane

8 ITT_RETR_CO

binary uint8 size: 0:1

Iterative retrieval for carbon monoxide

9 ITT_RETR_SURF_EMISS

binary uint8 size: 0:1

Iterative retrieval for surface emissivity

10 ITT_RETR_SURF_TEMP

binary uint8 size: 0:1

Iterative retrieval for surface temperature

11 ITT_RETR_O3_PROF

binary uint8 size: 0:1

Iterative retrieval for ozone profile

12 ITT_RETR_H2O_VAP_PROF

binary uint8 size: 0:1

Iterative retrieval for water vapour profile

13 ITT_RETR_TEMP_PROF

binary uint8 size: 0:1

Iterative retrieval for temperature profile

14 ANN_RETR_SURF_EMISS

binary uint8 size: 0:1

ANN retrieval for surface emissivity

15 ANN_RETR_SURF_TEMP

binary uint8 size: 0:1

ANN retrieval for surface temperature

16 ANN_RETR_CO2

binary uint8 size: 0:1

ANN retrieval for carbon dioxide

17 ANN_RETR_N2O

binary uint8 size: 0:1

ANN retrieval for nitrous oxide

18 ANN_RETR_CH4

binary uint8 size: 0:1

ANN retrieval for methane

19 ANN_RETR_CO

binary uint8 size: 0:1

ANN retrieval for carbon monoxide

20 ANN_RETR_O3

binary uint8 size: 0:1

ANN retrieval for ozone retrieval

21 ANN_RETR_H2O_VAP_PROF

binary uint8 size: 0:1

ANN retrieval for water vapour profile

22 ANN_RETR_TEMP_PROF

binary uint8 size: 0:1

ANN retrieval for temperature profile

23 EOF_REGR_SURF_EMISS

binary uint8 size: 0:1

EOF regression for surface emissivity

24 EOF_REGR_SURF_TEMP

binary uint8 size: 0:1

EOF regression for surface temperature

25 EOF_REGR_O3_PROF

binary uint8 size: 0:1

EOF regression for ozone profile

26 EOF_REGR_H2O_VAP_PROF

binary uint8 size: 0:1

EOF regression for water vapour profile

27 EOF_REGR_TEMP_PROF

binary uint8 size: 0:1

EOF regression for temperature profile

FLG_FRCSEL

binary array[120]

size: 120

Selection of fractional cloud cover from IASI/ATOVS or AVHRR

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:4

Not used

hidden: true

1 AVHRR_TOP_HT_HIGH

binary uint8 size: 0:1

AVHRR derived cloud top height is higher

2 IASI_ATOVS_TOP_HT_HIGH

binary uint8 size: 0:1

IASI/ATOVS derived cloud top height is higher

3 AVHRR_FRAC_COV_HIGH

binary uint8 size: 0:1

AVHRR derived fractional cloud cover is higher

4 IASI_ATOVS_FRAC_COV_HIGH

binary uint8 size: 0:1

IASI/ATOVS derived fractional cloud cover is higher

FLG_IASIBAD

binary array[120]

size: 240

Validation flag for IASI Level 1 product

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 0:2

Not used

hidden: true

1 MAJ_DEGR

binary uint8 size: 0:1

Major degradation no product retrieval possible

2 ITT_RETR_USE_SUBSET

binary uint8 size: 0:1

Degradation, iterative retrieval is only possible with subset of super-channels

3 ANN_NO_TRACE_GAS

binary uint8 size: 0:1

Degradation, ANN trace gas retrieval is not possible

4 ANN_NO_TEMP_H2O_VAP

binary uint8 size: 0:1

Degradation, ANN temperature and water-vapour retrieval is not possible

5 EOF_NO_REGR

binary uint8 size: 0:1

Degradation, EOF regression retrieval is not possible

6 EOF_REGR_USE_BAND_1_AND_2

binary uint8 size: 0:1

Degradation, EOF regression retrieval is only possible using bands 1 and 2

7 IASI_NO_CLOUD_PROC

binary uint8 size: 0:1

Degradation, cloud processing is not or only partly possible with IASI

8 MIN_DEGR_DATA_MOD

binary uint8 size: 0:1

Minor degradation, product retrieval is possible with data replacement/modification as foreseen

9 MIN_DEGR_NO_DATA_MOD

binary uint8 size: 0:1

Minor degradation, product retrieval is possible without data modification

10 AVHRR_RAD_OOB

binary uint8 size: 0:1

Out of bounds AVHRR radiance analysis

11 RAD_OOB

binary uint8 size: 0:1

Out of bounds radiance (not indicated by level 1 flags)

12 MISS_SIDE_INFO

binary uint8 size: 0:1

Missing or corrupted side information (not indicated by level 1 flags)

13 MISS_L1_DATA

binary uint8 size: 0:1

Missing or corrupted level 1 data (not indicated by level 1 flags)

14 DATA_DEGR_L1

binary uint8 size: 0:1

IASI data are degraded according to IASI level 1 flags

FLG_IASICLD

binary array[120]

size: 240

Results of cloud test

binary record size: 2

id field name definition

0 spare_1

binary bytes size: 1

Not used

hidden: true

1 TEST_H_CLOUD

binary uint8 size: 0:1

Test H has detected clouds

2 TEST_G_CLOUD

binary uint8 size: 0:1

Test G has detected clouds

3 TEST_F_CLOUD

binary uint8 size: 0:1

Test F has detected clouds

4 TEST_E_CLOUD

binary uint8 size: 0:1

Test E has detected clouds

5 TEST_D_CLOUD

binary uint8 size: 0:1

Test D has detected clouds

6 TEST_C_CLOUD

binary uint8 size: 0:1

Test C has detected clouds

7 TEST_B_CLOUD

binary uint8 size: 0:1

Test B has detected clouds

8 TEST_A_CLOUD

binary uint8 size: 0:1

Test A has detected clouds

FLG_IASICLR

binary array[120]

size: 120

IASI IFOV clear, partly cloudy or cloudy (0 = clear, 1 = partly cloudy, 2 = completely cloudy)

binary uint8 size: 1

FLG_INITIA

binary array[120]

size: 120

Retrieval initialisation

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:1

Not used

hidden: true

1 CLIM_INCL

binary uint8 size: 0:1

Climatology included

2 NWP_INCL

binary uint8 size: 0:1

NWP included

3 ATOVS_L2_INCL

binary uint8 size: 0:1

ATOVS Level 2 included

4 MHS_L1_INCL

binary uint8 size: 0:1

MHS Level 1 included

5 AMSU_A_L1_INCL

binary uint8 size: 0:1

AMSU-A Level 1 included

6 AVHRR_INCL

binary uint8 size: 0:1

AVHRR included

7 IASI_FIRST_RETR_INCL

binary uint8 size: 0:1

IASI first retrieval included

FLG_ITCONV

binary array[120]

size: 120

Convergence of the iterative retrieval (0 = The iteration did not converge, sounding rejected, 1 = Iteration did not converge, sounding accepted, 2 = Iteration converged, sounding accepted)

binary uint8 size: 1

FLG_ITRBOU

binary array[120]

size: 120

Validation of iterated state vector (0 = Iteration did not exceed valid bounds, 1 = Iterated state vector exceeds valid bounds)

binary uint8 size: 1

FLG_LANSEA

binary array[120]

size: 120

Specifies surface type (0 = water, 1 = land low, 2 = land high, 3 = land water low, 4 = land water high)

binary uint8 size: 1

FLG_NUMIT

binary array[120]

size: 120

Number of iterations used for retrieval (0 = no iterations, N = number of iterations of the retrieval)

binary uint8 size: 1

FLG_NWPBAD

binary array[120]

size: 120

Validation flag of NWP forecast (0 = NWP data are normal and complete, 1 = NWP data are normal but incomplete, 2 = NWP data have out of bound values, adjacent values could be assigned, 3 = NWP data are corrupted or missing and could be partly used only, 4 = NWP data are corrupted or missing and could not be used, 5 = NWP data are not available)

binary uint8 size: 1

FLG_QUAL

binary array[120]

size: 120

Quality and completness of the retrieval (0 = No successful retrieval, 1 = Complete retrieval, errors within EURD objective, 2 = Incomplete retrieval, errors within EURD objective, 3 = Complete retrieval, errors within EURD threshold, 4 = Incomplete retrieval, errors within EURD threshold, 5 = Complete retrieval, errors outside EURD threshold, 6 = Incomplete retrieval, errors outside EURD threshold)

binary uint8 size: 1

FLG_RESID

binary array[120]

size: 120

Retrieval residual acceptance flag (0 = Residual check was not passed, sounding rejected, 1 = Residual check passed, sounding accepted)

binary uint8 size: 1

FLG_RETBOU

binary array[120]

size: 3840

Identification of out-of-bounds state vector elements

binary array[256] size: 32

State vector out of valid bounds flag array: each flag corresponds to one element of the state vector. NOTE: flags are in reverse order, i.e. flag 0 corresponds to state vector element 255.

binary uint8 size: 0:1

State vector element out of valid bounds flag

FLG_RETCHC

binary array[120]

size: 120

Choice of combined or IASI stand alone retrieval

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:2

Not used

hidden: true

1 MHS_L1_INCL_RETR

binary uint8 size: 0:1

MHS Level 1 included in retrieval

2 AMSU_A_L1_INCL_RETR

binary uint8 size: 0:1

AMSU-A Level 1 included in retrieval

3 AMSU_A_L1_INCL_CLOUD_PROC

binary uint8 size: 0:1

AMSU-A Level 1 included in cloud processing

4 ATOVS_L2_INCL_RETR_INIT

binary uint8 size: 0:1

ATOVS Level 2 included in retrieval initialisation

5 ATOVS_L2_INCL_CLOUD_PROC

binary uint8 size: 0:1

ATOVS Level 2 included in cloud processing

6 AVHRR_INCL

binary uint8 size: 0:1

AVHRR included

FLG_SATMAN

binary array[120]

size: 120

Indication of satellite manouevre (0 = The platform is not undergoing a manoeuvre, 1 = The platform is undergoing a manoeuvre, nominal processing, 2 = The platform is undergoing a manoeuvre, no processing)

binary uint8 size: 1

FLG_SELBAC

binary array[120]

size: 120

Selection of background state (0 = No background state vector selected, 1 = ATOVS level 2 selected as background state vector, 2 = Climatology selected as background state vector, 3 = NWP forecast selected as background state vector, 4 = Previous retrieval selected as background state vector)

binary uint8 size: 1

FLG_SFCAVH

binary array[120]

size: 120

Indication of AVHRR derived surface temperature

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:6

Not used

hidden: true

1 LAND_SURF_TEMP_CALC

binary uint8 size: 0:1

Land surface temperature has been calculated

2 SEA_SURF_TEMP_CALC

binary uint8 size: 0:1

Sea surface temperature has been calculated

FLG_SFCTOP

binary array[120]

size: 120

Validation flag for surface type and topography

binary record size: 1

id field name definition

0 spare_1

binary bytes size: 0:4

Not used

hidden: true

1 TOPO_INCOMPL

binary uint8 size: 0:1

The topography is incomplete

2 TOPO_INVAL

binary uint8 size: 0:1

The topography is not valid

3 SURF_TYPE_INCOMPL

binary uint8 size: 0:1

The surface types are incomplete

4 SURF_TYPE_INVAL

binary uint8 size: 0:1

The surface types are not valid

FLG_SUNGLNT

binary array[120]

size: 120

Identification of sun glint (0 = No sun glint, 1 = IASI observes sun glint)

binary uint8 size: 1

FLG_SUPADI

binary array[120]

size: 120

Indication of super-adiabatic conditions in final retrieval (0 = No super adiabatic layering, N = Super-adiabatic conditions in N layers)

binary uint8 size: 1

FLG_SUPSAT

binary array[120]

size: 120

Indication of super-saturation in final retrieval (0 = No super saturation of water vapour, N = Super-saturation at N levels)

binary uint8 size: 1

FLG_THICIR

binary array[120]

size: 120

Thin cirrus cloud test (0 = No thin cirrus detected, 1 = Thin cirrus detected, 2 = Test failed or not executed)

binary uint8 size: 1

FLG_THICOR

binary array[120]

size: 120

Thin cirrus has been corrected for (0 = The IASI data have not been corrected, 1 = The IASI data have been corrected for thin cirrus)

binary uint8 size: 1

FLG_VARCLR

binary array[120]

size: 120

Cloud clearing by variational analysis (0 = The IASI IFOV has been initialised for variational cloud clearing, 1 = The IASI IFOV has not been initialised for variational cloud clearing)

binary uint8 size: 1

FLG_STER

binary array[120]

size: 120

Representation of retrieval errors. Determines type of data in ERROR_DATA. (0 = No error variances or covariances given in the product, 1 = Constant error variances are assigned to the state vector as specified in the user-configurable auxiliary data set, 2 = Error variances are calculated in the iterative retrieval, 3 = Reserved for future use, 4 = Diagonal elements of the inverted covariance matrix and wavelet coefficients describing the correlation matrix as calculated from the inverse covariance matrix derived in the iterative retrieval)

binary uint8 size: 1

MATRIX_DATA_SIZES

binary array[120]

size: 480

binary record size: 4

id field name definition

0 M

binary uint16 size: 2

Size of array in MDR.COVARIANCE_MATRIX (120 x M x N)

1 N

binary uint16 size: 2

Size of array in MDR.COVARIANCE_MATRIX (120 x M x N)

COVARIANCE_MATRIX

binary array[120]

Contents depends on FLG_STER field

binary array[dim_0, dim_1]

dim_0: int(:/../MATRIX_DATA_SIZES[index(:)]/M)

dim_1: int(:/../MATRIX_DATA_SIZES[index(:)]/N)

binary uint16 size: 2