amilan17
commented
1 year ago https://github.com/wmo-im/CCT/wiki/Teleconference.25.26.April.2023 notes:
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Antoine introduced the proposal;
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TWV review
- (Marijana) asked for clarifications on several elements; The "in bounds check" might fit somewhere else, e.g. significance table [..?..] [ACTION] Antoine double check how many fields for "Satellite instruments" are needed and add notes;
- (Sergio) questions about pressures and the relationship to air temperature[..?..] (Antoine) it's for describing the range of pressure; [ACTION] Antoine will add significance descriptors (Sergio) maybe Integrated water vapour be moved to after pressure and before air temperature? (Antoine) no, it needs to be outside (Marijana) it would be useful to add "layer number" in the descriptor [ACTION] Antoine will research this option.
- (Sybille or Marijana) Missing maybe a descriptors' significance for air temperature humidity to explicitly says what it corresponds too (max temp).
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CLD review
- (Antoine) everything is the same up to as TWV until atmospheric profile
- (Marjana) Add a significance on the replications of the 2 n_cld to explicit explain what those 2 level correspond too , Antoine will get close to the EUM scientist to find that info and if needed will create a new code table for that one
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SFC overview
- (Sibylle) Pressure should be from category 10, not cat 07, because this is the measurement of the pressure. Cat 07 is to indicate pressure level at a location and here it's not the location, but the measurement; [ACTION] Antoine change Pressure sequence
[ACTION] Anna coordinate a side meeting to discuss further details with Antoine, Simon, Marijana, Sibylle, Sergio and other invitees as desired after Antoine indicates that it's available.
Edit : Antoine fixed a typo in the list displayed in markdown langage. Edit 2 : Antoine added so miss reco on CLD and TWV
antoinemerle
marijanacrepulja
SibylleK
SimonElliottEUM
Initial request
This document proposes new BUFR entries for the following L2 products :
This document proposes new BUFR entries for the following L2 products :
Amendment details
New entries in Table B :
Add the following elements to BUFR Table B :
New entries in existing code and flag table
New flag tables and related code
New table D entries
IASI L2 - Common part for TWV,CLD, SFC, GHG from EUM-PRS
Add the following sequence 3 10 087 : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 PRS common part for TWV,CLD,SFC,GHG
Here's the formatted table in Markdown:
IASI L2 - TWV
Details on 3 10 088
Add the following sequence 3 10 88: Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 temperature and water vapour profiles (TWV) Here's the formatted table in Markdown: | Table references | Element name | Note | | --- | --- | --- | 3 10 087|IASI NG L2 common information part|The common information shared for TWV, CLD, SFC and GHG 0 40 053|Number of iterations used for retrieval| 1 02 003|Replication of 2 elements 3 times| 0 08 071|Type of cost estimation| 0 25 149|Optimal estimation cost| 1 06 000|Delayed replication of 6 descriptor| 0 31 000|Short delayed replication factor| 1 01 000|Delayed replication of 1 descriptor| 0 31 002|Extended delayed descriptor replication factor| 0 40 076|Retrieval error covariance matrix for temperature in principal component domain| 1 01 000|Delayed replication of 1 descriptor| 0 31 002|Extended delayed descriptor replication factor| 0 40 075|Retrieval error covariance matrix for humidity in principal component domain| 0 40 067|Quality indicator for atmospheric temperature| 0 40 066|Quality indicator for atmospheric water vapour| 2 02 126|Change scale| 0 13 098|Integrated water vapour (column)| 2 02 000|Cancel| 1 07 101|Replication of 7 elements 101 times|For 101 pressure layer 2 02 131|Change scale| 2 01 138|Change width| 0 07 004|Pressure|At a given pressure 2 01 000|Cancel| 2 02 000|Cancel| 0 12 101|Air temperature|Air temperature at given pressure 0 13 001|Specific humidity|Humidity at given pressure > note for the short delayed replication Basically we will have either or not a matrice of error for temperature and humidity for each point. While we are reading the error_data_index that is describing the index of the point : If we have 255 in the value of the error_data_index, that means there is no errors, we will put 0 for the shor delayed replication factor (meaning we skip the other descriptors bellow) > if we a number (corresponding to the current index) we will put 1 and then the 6 following descriptors will be replicated meaning there is actually some error for that particular pointIASI-NG L2 CLD
Details on 3 10 89
Add the following sequence `3 10 089` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 cloud detection (CLD) Here's the formatted table in Markdown: | Table references | Element name | Note | | --- | --- | --- | 3 10 087|IASI NG L2 common information part|The common information shared for TWV, CLD, SFC and GHG 0 12 083|Temperature difference between observed and computed|Difference in Kelvin float number between the observed temperature and the computed temperature 0 08 043|Atmospheric chemical or physical constituent type|Set to Dust 0 40 044|Dust index| 0 08 043|Atmospheric chemical or physical constituent type|Cancel Dust 0 20 056|Cloud phase|Set to 1 for liquid 0 13 109|Ice/liquid water path|Liquid mass 0 20 056|Cloud phase|Set to 2 for ice 0 13 109|Ice/liquid water path|Ice mass 0 08 003|Vertical significance (satellite observations)|Set vertical significance to cloud top 1 09 002|Replication of 9 descriptors 2 times|Loop other two layers of clouds (one at a first specific pressure and a second one at a second specific pressure) 0 20 056|Cloud phase|Describe the physical state of the cloud 0 20 081|Cloud amount in segment|Fractional cloud cover in percentage 2 02 131|Change scale| 2 01 138|Change width| 0 20 016|Pressure at top of cloud|Pressure at cloud top 2 01 000|Cancel| 2 02 000|Cancel| 0 12 101|Air temperature|Air temperature at cloud top 0 20 131|Effective radius of cloud hydrometeors|Cloud drop effective radius at cloud topIASI-NG L2 SFC
Details on 3 10 090
Add the following sequence `3 10 090` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 surface parameters (SFC) Here's the generated Markdown for the table: | Table references | Element name | Note | | --- | --- | --- | 3 10 087|IASI NG L2 common information part|The common information shared for TWV, CLD, SFC and GHG 0 08 003|Vertical significance (satellite observations)|Set Vertical significance to surface 0 40 067|Quality indicator for atmospheric temperature| 0 40 066|Quality indicator for atmospheric water vapour| 1 02 012|Replication of 02 descriptors 12 times|12 channels 0 05 042|Channel number|Number of channels 0 14 050|Emissivity|Emissivity at surface 0 12 001|Temperature / air temperature|Air temperature at surface 2 02 131|Change scale| 2 01 138|Change width| 0 10 004|Pressure|Pressure at surface 2 01 000|Cancel| 2 02 000|Cancel| 0 08 003|Vertical significance (satellite observations)|Cancel Vertical Significance 0 12 083|Temperature difference between observed and computed|Difference between the observed temperature and the computed temperature 0 11 012|Wind speed at 10m| 0 08 043|Atmospheric chemical or physical constituent type|Set Atmospheric chemical to Dust 0 40 044|Dust index| 0 08 043|Atmospheric chemical or physical constituent type|Cancel DustIASI-NG L2 GHG
Details on 3 10 091
Add the following sequence `3 10 091` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 total columns of nitrous oxide, methane and carbon dioxide (GHG) | Table references | Element name | Note | | --- | --- | --- | 3 10 087|IASI NG L2 common information part|The common information shared for TWV, CLD, SFC and GHG 1 04 003|Replicate 4 descriptors 3 times |Loop other the 3 different chemical constituent type 0 08 043|Atmospheric chemical or physical constituent type | N20,CH4 and CO2 1 02 007|Replicate 2 descriptors 7 times| 0 07 004|Pressure |At a given pressure 0 15 021|Integrated mass density|IASI L2 - Common part for CO_, NAC, O3, SO2 from EUM-PRS
3 10 092: Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 common information part (IASI NG L2 CO_, NAC, O3, SO2) Table referencesIASI-NG L2 CO_
Details on 3 10 093
Add the following sequence `3 10 093` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 carbon monoxide total column, carbon monoxide profile (CO_) Table references | Element name | note | -- | -- | -- | 3 10 092|IASI NG L2 common information part|The common information shared for CO, NAC, O3 and SO2. 0 08 046|Atmospheric chemical or physical constituent type|4 Carbon monoxide CO 0 15 021|Integrated mass density|Mass content of Carbon monoxide 0 40 056|General retrieval quality|General retrieval quality flag 0 40 058|Number of vectors describing the char. matrices|Number of vectors describing the characterization matrices 0 40 059|Number of layers actually retrieved|Number of layers actually retrieved 0 40 060|Number of profiles retrieved in scanline|Number of for carbon monoxide profiles retrieved in scanline 0 40 057|IASI level 2 retrieval flags|IASI2 retrieval flag containing the 040054 and 04055 flag 1 03 019|Repeat 3 descriptors 19 times|Loop other 19 column 0 40 061|Air partial columns on each retrieved layer|molecules/cm 0 40 062|A-priori partial columns on each retrieved layer|Molecules/cm 0 40 063|Scaling vector multiplying the a priori vector in order to define the retrieved vector|Scaling vector multiplying the a priori CO vector in order to define the retrieved CO vector. 1 01 190|Repeat1 descriptor 190 times | 0 40 065|Main eigenvectors of the sensitivity matrix|Main eigenvectors of the sensitivity matrixIASI-NG L2 NAC and IASI-NG L2 O3
Details on 3 10 094
Add the following sequence `3 10 094` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 nitric acid total column, nitric acid profile (NAC) and level 2 ozone total column, ozone profile (O3_) Table references | Element name | note | -- | -- | -- | 3 10 092|IASI NG L2 common information part|The common information shared for CO, NAC, O3 and SO2. 0 08 046|Atmospheric chemical or physical constituent type|Here code for ozone(O3) or nitric acid (HNO3) 0 15 021|Integrated mass density|Mass content of nitric acid or of ozone 0 40 056|General retrieval quality flag|General retrieval quality flag 0 40 058|Number of vectors describing the char. matrices|Number of vectors describing the characterization matrices 0 40 059|Number of layers actually retrieved|Number of layers actually retrieved 0 40 060|Number of profiles retrieved in scanline|Number of HNO3 or O3 profiles retrieved in scanline 0 40 057|IASI level 2 retrieval flags|IASI 2 retrieval flag containing the 040054 and 04055 flag 1 03 041|Repeat 3 descriptor 41 times|Loop other each layer 0 40 061|Air partial columns on each retrieved layer|Air partial columns on each retrieved layer molecules / cm2 0 40 062|A-priori partial columns for each retrieved layer|A-priori partial columns for HNO3 or O3 in each retrieved layer 0 40 063|Scaling vector multiplying the a priori vector in order to define the retrieved vector|Scaling vector multiplying the a priori HNO3 or O3 vector in order to define the retrieved HNO3 or O3 vector. 1 02 021|Repeat 2 descriptor 21 times|Layer repeat 861 1 01 041|Repeat 1 descriptor 41 times| 0 40 065|Main eigenvectors of the sensitivity matrix|Main eigenvectors of the sensitivity matrixIASI-NG L2 SO2
Details on 3 10 095
Add the following sequence `3 10 095` : Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 SO2 total column (SO2) Table references | Element name | note | -- | -- | -- | 3 10 092|IASI NG L2 common information part|The common information shared for CO, NAC, O3 and SO2. 0 08 046|Atmospheric chemical or physical constituent type |8=SO2 0 40 068|General retrieval quality flag for SO2|General retrieval quality flag for SO2 0 10 073|Height of plume|Altitude of the plume 0 15 007|Estimated amount of chemical constituent|SO2 amount at the retrieved plume altitude 0 12 169|Brightness temperature difference|Indicative brightness temperature difference in K 1 02 005|Repeat 2 descriptor 5 times|5 different altitude / pressure 0 07 004|Pressure|Static pressure at different altitude 0 15 007|Estimated amount of chemical constituent|Amount of chemical constituent (DU)VII L2 common information part
Add the following sequence
3 10 096: Metop-SG Infrared Atmospheric Sounder Interferometer - New Generation (IASI-NG), level 2 SO2 total column (SO2)VII L2 CLD
Details on 3 10 097
Add the following sequence `3 10 097` : Metop-SG Visible Infrared Imager (VII), level 2 cloud cloud detection (CLD) Table references | Element name | note | -- | -- | -- | 3 10 096|VII L2 common information part|The common information shared for CLD, CTP, OCA, WVV and WVI 0 08 011|Meteorological feature|Set to 11 to specify we are speaking about cloud clear 0 33 007|Per cent confidence|Pixel clear-sky confidence 0 08 011|Meteorological feature|Set to cancel 0 08 072|Pixel type|Cloudy flag 0 08 029|Pixel surface type|Surface typeVII L2 CTP
Details on 3 10 098
Add the following sequence `3 10 098` : Metop-SG Visible Infrared Imager (VII), level 2 Cloud Top Pressure (CTP) Table references | Element name | note | -- | -- | -- | 3 10 096|VII L2 common information part|The common information shared for CLD, CTP, OCA, WVV and WVI 0 13 094|Log 10 of Cloud optical thickness|Cloud optical thickness in Log10 0 20 016|Pressure at top of cloud|Pressure at cloud top 0 20 014|Height of top of cloud|Height at cloud top 0 08 093|Measurement uncertainty significance |Total uncertainty 0 13 094|Log 10 of Cloud optical thickness|Error on Cloud optical thickness in Log10 0 20 016|Pressure at top of cloud|Error on pressure at cloud top 0 20 014|Height of top of cloud|Error on Height at cloud top 0 08 093|Measurement uncertainty significance |Cancel total uncertaintyVII L2 OCA
Details on 3 10 099
Add the following sequence `3 10 099` : Metop-SG Visible Infrared Imager (VII), level 2 Optimal Cloud Analysis (OCA) Table references | Element name | note | -- | -- | -- | 3 10 096|VII L2 common information part|The common information shared for CLD, CTP, OCA, WVV and WVI 0 25 144|Number of visual channels used in processing|From 0 to 11 0 25 145|Number of infrared channels used in processing|From 5 to 9 0 20 139|Final cloud model assumption|Final cloud model assumption: 0=clear ,1=single layer water,2=single layer ice,3=2-layers (water/ice),4=single layer ash,5=2-layers ash 0 08 029|Pixel surface type|Surface type 1 20 002|Repeat 20 descriptors 2 times|Loop other first layer or/and second layer 0 08 002|Vertical significance (surface observations)|On first iteration : 21 First instrument detected cloud layer, for second iteration : 22 Second instrument detected cloud layer 0 13 094|Log 10 of Cloud optical thickness|Cloud optical thickness of single or top layer in Log10 0 20 016|Pressure at top of cloud|Pressure at cloud top 0 12 001|Temperature|Temperature at cloud top 2 02 131|Add 3 to scale| 2 01 139|Add 11 to width| 0 20 131|Effective radius of cloud hydrometeors|Cloud particle effective radius 2 01 000|Cancel| 2 02 000|Cancel| 0 20 014|Height of top of cloud|Height at cloud top 0 08 093|Measurement uncertainty significance |Total uncertainty 0 13 094|Log 10 of Cloud optical thickness|Error on cloud optical thickness in log 10 0 20 016|Pressure at top of cloud|Error on Pressure at top cloud 2 02 131|Add 3 to scale| 2 01 139|Add 11 to width| 0 20 131|Effective radius of cloud hydrometeors|Error on cloud particle effective radius 2 01 000|Cancel| 2 02 000|Cancel| 0 20 014|Height of top of cloud|Error on height at cloud top 0 08 093|Measurement uncertainty significance |Cancel total uncertaintyVII L2 WVI/WVV
Details on 3 10 100
Add the following sequence `3 10 100` : Metop-SG Visible Infrared Imager (VII), level 2 Total precipitable water IR and VIS (WVI/WVV) Table references | Element name | note | -- | -- | -- | 3 10 096|VII L2 common information part|The common information shared for CLD, CTP, OCA, WVV and WVI 2 02 129|Add 1 to scale| 2 01 132|Add 4 to width| 0 13 060|Total accumulated precipitation| 2 01 000|Cancel| 2 02 000|Cancel| 0 33 118|Relative error percentage|Relative error on total accumulated precipitation water 0 33 119|Forecast error percentage|Relative difference between retrieved TPW and forecast TPWAcronyms :
ADC | Analog-to-digital converter ASCAT | Advanced Scatterometer (190 in Common Code Table C-8) DEM | Digital elevation model EOP | Earth orientation parameters EPS-SG | EUMETSAT Polar System – Second Generation EUMETSAT | European Organisation for the Exploitation of Meteorological Satellites FOVs | Fields of view IASI-NG | Infrared Atmospheric Sounding Interferometer - New Generation (231 in Common Code Table C-8) ICI | Ice Cloud Imager (236 in Common Code Table C-8) IERS | International Earth Rotation Service L0 | Level 0 (raw data) L2 | Level 2 (geophysical data) LOS | Line of sight LSM | Landform segmentation model MR | Main reflector MWI | Microwave Imager (237 in Common Code Table C-8) MWS | Microwave Sounder (233 in Common Code Table C-8) NAVATT | Navigation and attitude data NEDT | Nose equivalent delta temperature NEdT | Nose equivalent delta temperature NEΔT | Nose equivalent delta temperature OBCT | On board calibration target PCS | Principle component scores PRT | Platinum resistance thermometer RAD | Radiances RFI | Radio frequency interference RMS | Root mean square SCA | Scatterometer (238 in Common Code Table C-8) SVR | Resampled at 12.5 km swath grid SZF | Resampled at full resolution THM | Thermistor TM | Telemetry TWV | IASI-NG temperature and humidity profiles YPR | Yaw, pitch, and roll YSM | Yaw steering mode
Comments
No response
Requestor(s)
EUMETSAT :
Stakeholder(s)
ECMWF WMO ECCODES
Publication(s)
New entries in : Table B New entries in : Table D New entries in : Flag Table New entries to existing flag table
Expected impact of change
MEDIUM
Collaborators
EUMETSAT scientists
References
No response
Validation
No response