New section 4 templates to extend the optical properties templates. #340
Description
Introduction
The following four “point-in-time" product definition templates are available to encode parameters with optical properties of aerosols.
| Code | Description |
|---|---|
| 4.48 | Analysis or forecast at a horizontal level or in a horizontal layer at a point in time for optical properties of aerosol |
| 4.49 | Individual ensemble forecast control and perturbed at a horizontal level or in a horizontal layer at a point in time for optical properties of aerosol |
| 4.80 | Analysis or forecast at a horizontal level or in a horizontal layer at a point in time for optical properties of aerosol with source or sink |
| 4.81 | Individual ensemble forecast control and perturbed at a horizontal level or in a horizontal layer at a point in time for optical properties of aerosol with source or sink |
To be able to encode daily and monthly means of optical properties of aerosols parameters, statistical processing versions of the existing templates are proposed.
This is achieved by adding the following keys to the above templates:
| Number of Octet | Description |
|---|---|
| 2 | Year of end of overall time interval |
| 1 | Month of end of overall time interval |
| 1 | Day of end of overall time interval |
| 1 | Hour of end of overall time interval |
| 1 | Minute of end of overall time interval |
| 1 | Second of end of overall time interval |
| 1 | n - number of time range specifications describing the time intervals used to calculate the statistically processed field |
| 4 | Total number of data values missing in statistical process |
| Specification of the outermost (or only) time range loop over which statistical processing is done | |
| 1 | Statistical process used to calculate the processed field from the field at each time increment during the time range (see code table 4.10) |
| 1 | Type of time increment between successive fields used in the statistical processing (see code table 4.11) |
| 1 | Indicator of unit of time for time range over which statistical processing is done (see code table 4.4) |
| 4 | Length of the time range over which statistical processing is done, in units defined by the previous octet |
| 1 | Indicator of unit of time for the increment between the successive fields used (see code table 4.4) |
| 4 | Time increment between successive fields, in units defined by the previous octet |
| These following octets are included only if n > 1 | |
| 12 | As previous loop, next innermost step of processing |
| n/a | Additional time range specifications, included in accordance with the value of n. Contents as previous loop, repeated as necessary |
Amendment details
ADD to code table 4.0 Product definition template number
| Code | Description |
|---|---|
| 156 | Average, accumulation, extreme values or other statistically processed values at a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol |
| 157 | Individual ensemble forecast, control and perturbed at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol |
| 158 | Average, accumulation, extreme values or other statistically processed values at a continuous or non-continuous time interval for optical properties of aerosol with source or sink |
| 159 | Individual ensemble forecast, control and perturbed at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol with source or sink |
ADD TEMPLATE 4.156, Average, accumulation, extreme values or other statistically processed values at a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol
| Octet | Number of octets | Description |
|---|---|---|
| 10 | 1 | Parameter Category (see code table 4.1) |
| 11 | 1 | Parameter Number (see code table 4.2) |
| 12-13 | 2 | Aerosol type (see Common Code table C-14) |
| 14 | 1 | Type of interval for first and second size (see Code table 4.91) |
| 15 | 1 | Scale factor of first size |
| 16-19 | 4 | Scaled value of first size in metres |
| 20 | 1 | Scale factor of second size |
| 21-24 | 4 | Scaled value of second size in metres |
| 25 | 1 | Type of interval for first and second wavelength |
| 26 | 1 | Scale factor of first wavelength |
| 27-30 | 4 | Scaled value of first wavelength in metres |
| 31 | 1 | Scale factor of second wavelength |
| 32-35 | 4 | Scaled value of second wavelength in metres |
| 36 | 1 | Type of Generating Process (see code table 4.3) |
| 37 | 1 | Background Process |
| 38 | 1 | Generating Process Identifier |
| 39- 40 | 2 | Hours After Data Cut-off |
| 41 | 1 | Minutes After Data Cut-off |
| 42 | 1 | Indicator of Unit of Time Range (see code table 4.4) |
| 43- 46 | 4 | Forecast Time |
| 47 | 1 | Type of First Fixed Surface (see code table 4.5) |
| 48 | 1 | Scale Factor of First Fixed Surface |
| 49- 52 | 4 | Scaled Value of First Fixed Surface |
| 53 | 1 | Type of Second Fixed Surface (see code table 4.5) |
| 54 | 1 | Scale Factor of Second Fixed Surface |
| 55-58 | 4 | Scaled Value of Second Fixed Surface |
| 59-60 | 2 | Year of end of overall time interval |
| 61 | 1 | Month of end of overall time interval |
| 62 | 1 | Day of end of overall time interval |
| 63 | 1 | Hour of end of overall time interval |
| 64 | 1 | Minute of end of overall time interval |
| 65 | 1 | Second of end of overall time interval |
| 66 | 1 | n - number of time range specifications describing the time intervals used to calculate the statistically processed field |
| 67-70 | 4 | Total number of data values missing in statistical process |
| 71 - 82 Specification of the outermost (or only) time range over which statistical processing is done | ||
| 71 | 1 | Statistical process used to calculate the processed field from the field at each time increment during the time range (see code table 4.10) |
| 72 | 1 | Type of time increment between successive fields used in the statistical processing (see code table 4.11) |
| 73 | 1 | Indicator of unit of time for time range over which statistical processing is done (see code table 4.4) |
| 74-77 | 4 | Length of the time range over which statistical processing is done, in units defined by the previous octet |
| 78 | 1 | Indicator of unit of time for the increment between the successive fields used (see code table 4.4) |
| 79-82 | 4 | Time increment between successive fields, in units defined by the previous octet |
| 83- nn These octets are included only if n > 1, where nn = 70+ 12 x n | ||
| 83-94 | 12 | As octets 71 to 82, next innermost step of processing |
| 95-nn | n/a | Additional time range specifications, included in accordance with the value of n. Contents as octets 71 to 82, repeated as necessary |
ADD TEMPLATE 4.157, Individual ensemble forecast control and perturbed at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol
| Octet | Number of octets | Description |
|---|---|---|
| 10 | 1 | Parameter Category (see code table 4.1) |
| 11 | 1 | Parameter Number (see code table 4.2) |
| 12-13 | 2 | Aerosol type (see Common Code table C-14) |
| 14 | 1 | Type of interval for first and second size (see Code table 4.91) |
| 15 | 1 | Scale factor of first size |
| 16-19 | 4 | Scaled value of first size in metres |
| 20 | 1 | Scale factor of second size |
| 21-24 | 4 | Scaled value of second size in metres |
| 25 | 1 | Type of interval for first and second wavelength |
| 26 | 1 | Scale factor of first wavelength |
| 27-30 | 4 | Scaled value of first wavelength in metres |
| 31 | 1 | Scale factor of second wavelength |
| 32-35 | 4 | Scaled value of second wavelength in metres |
| 36 | 1 | Type of Generating Process (see code table 4.3) |
| 37 | 1 | Background Process |
| 38 | 1 | Generating Process Identifier |
| 39- 40 | 2 | Hours After Data Cut-off |
| 41 | 1 | Minutes After Data Cut-off |
| 42 | 1 | Indicator of Unit of Time Range (see code table 4.4) |
| 43- 46 | 4 | Forecast Time |
| 47 | 1 | Type of First Fixed Surface (see code table 4.5) |
| 48 | 1 | Scale Factor of First Fixed Surface |
| 49- 52 | 4 | Scaled Value of First Fixed Surface |
| 53 | 1 | Type of Second Fixed Surface (see code table 4.5) |
| 54 | 1 | Scale Factor of Second Fixed Surface |
| 55-58 | 4 | Scaled Value of Second Fixed Surface |
| 59 | 1 | Type of ensemble forecast (see Code table 4.6) |
| 60-63 | 4 | Perturbation number |
| 64-67 | 4 | Number of forecasts in ensemble |
| 68-69 | 2 | Year of end of overall time interval |
| 70 | 1 | Month of end of overall time interval |
| 71 | 1 | Day of end of overall time interval |
| 72 | 1 | Hour of end of overall time interval |
| 73 | 1 | Minute of end of overall time interval |
| 74 | 1 | Second of end of overall time interval |
| 75 | 1 | n - number of time range specifications describing the time intervals used to calculate the statistically processed field |
| 76-79 | 4 | Total number of data values missing in statistical process |
| 80 - 91 Specification of the outermost (or only) time range over which statistical processing is done | ||
| 80 | 1 | Statistical process used to calculate the processed field from the field at each time increment during the time range (see code table 4.10) |
| 81 | 1 | Type of time increment between successive fields used in the statistical processing (see code table 4.11) |
| 82 | 1 | Indicator of unit of time for time range over which statistical processing is done (see code table 4.4) |
| 83-86 | 4 | Length of the time range over which statistical processing is done, in units defined by the previous octet |
| 87 | 1 | Indicator of unit of time for the increment between the successive fields used (see code table 4.4) |
| 88-91 | 4 | Time increment between successive fields, in units defined by the previous octet |
| 92- nn These octets are included only if n > 1, where nn =79+ 12 x n | ||
| 92-103 | 12 | As octets 80 to 91, next innermost step of processing |
| 104-nn | n/a | Additional time range specifications, included in accordance with the value of n. Contents as octets 80 to 91, repeated as necessary |
ADD TEMPLATE 4.158, Average, accumulation, extreme values or other statistically processed values at a continuous or non-continuous time interval for optical properties of aerosol with source or sink
| Octet | Number of octets | Description |
|---|---|---|
| 10 | 1 | Parameter Category (see code table 4.1) |
| 11 | 1 | Parameter Number (see code table 4.2) |
| 12-13 | 2 | Aerosol type (see Common Code table C-14) |
| 14 | 1 | Source or sink (see Code table 4.238) |
| 15 | 1 | Type of interval for first and second size (see Code table 4.91) |
| 16 | 1 | Scale factor of first size |
| 17-20 | 4 | Scaled value of first size in metres |
| 21 | 1 | Scale factor of second size |
| 22-25 | 4 | Scaled value of second size in metres |
| 26 | 1 | Type of interval for first and second wavelength |
| 27 | 1 | Scale factor of first wavelength |
| 28-31 | 4 | Scaled value of first wavelength in metres |
| 32 | 1 | Scale factor of second wavelength |
| 33-36 | 4 | Scaled value of second wavelength in metres |
| 37 | 1 | Type of Generating Process (see code table 4.3) |
| 38 | 1 | Background Process |
| 39 | 1 | Generating Process Identifier |
| 40- 41 | 2 | Hours After Data Cut-off |
| 42 | 1 | Minutes After Data Cut-off |
| 43 | 1 | Indicator of Unit of Time Range (see code table 4.4) |
| 44- 47 | 4 | Forecast Time |
| 48 | 1 | Type of First Fixed Surface (see code table 4.5) |
| 49 | 1 | Scale Factor of First Fixed Surface |
| 50- 53 | 4 | Scaled Value of First Fixed Surface |
| 54 | 1 | Type of Second Fixed Surface (see code table 4.5) |
| 55 | 1 | Scale Factor of Second Fixed Surface |
| 56-59 | 4 | Scaled Value of Second Fixed Surface |
| 60-61 | 2 | Year of end of overall time interval |
| 62 | 1 | Month of end of overall time interval |
| 63 | 1 | Day of end of overall time interval |
| 64 | 1 | Hour of end of overall time interval |
| 65 | 1 | Minute of end of overall time interval |
| 66 | 1 | Second of end of overall time interval |
| 67 | 1 | n - number of time range specifications describing the time intervals used to calculate the statistically processed field |
| 68-71 | 4 | Total number of data values missing in statistical process |
| 72 - 83 Specification of the outermost (or only) time range over which statistical processing is done | ||
| 72 | 1 | Statistical process used to calculate the processed field from the field at each time increment during the time range (see code table 4.10) |
| 73 | 1 | Type of time increment between successive fields used in the statistical processing (see code table 4.11) |
| 74 | 1 | Indicator of unit of time for time range over which statistical processing is done (see code table 4.4) |
| 75-78 | 4 | Length of the time range over which statistical processing is done, in units defined by the previous octet |
| 79 | 1 | Indicator of unit of time for the increment between the successive fields used (see code table 4.4) |
| 80-83 | 4 | Time increment between successive fields, in units defined by the previous octet |
| 84- nn These octets are included only if n > 1, where nn = 71+ 12 x n | ||
| 84-95 | 12 | As octets 72 to 83, next innermost step of processing |
| 96-nn | n/a | Additional time range specifications, included in accordance with the value of n. Contents as octets 72 to 83, repeated as necessary |
ADD TEMPLATE 4.159, Individual ensemble forecast control and perturbed at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol with source or sink
| Octet | Number of octets | Description |
|---|---|---|
| 10 | 1 | Parameter Category (see code table 4.1) |
| 11 | 1 | Parameter Number (see code table 4.2) |
| 12-13 | 2 | Aerosol type (see Common Code table C-14) |
| 14 | 1 | Source or sink (see Code table 4.238) |
| 15 | 1 | Type of interval for first and second size (see Code table 4.91) |
| 16 | 1 | Scale factor of first size |
| 17-20 | 4 | Scaled value of first size in metres |
| 21 | 1 | Scale factor of second size |
| 22-25 | 4 | Scaled value of second size in metres |
| 26 | 1 | Type of interval for first and second wavelength |
| 27 | 1 | Scale factor of first wavelength |
| 28-31 | 4 | Scaled value of first wavelength in metres |
| 32 | 1 | Scale factor of second wavelength |
| 33-36 | 4 | Scaled value of second wavelength in metres |
| 37 | 1 | Type of Generating Process (see code table 4.3) |
| 38 | 1 | Background Process |
| 39 | 1 | Generating Process Identifier |
| 40- 41 | 2 | Hours After Data Cut-off |
| 42 | 1 | Minutes After Data Cut-off |
| 43 | 1 | Indicator of Unit of Time Range (see code table 4.4) |
| 44- 47 | 4 | Forecast Time |
| 48 | 1 | Type of First Fixed Surface (see code table 4.5) |
| 49 | 1 | Scale Factor of First Fixed Surface |
| 50- 53 | 4 | Scaled Value of First Fixed Surface |
| 54 | 1 | Type of Second Fixed Surface (see code table 4.5) |
| 55 | 1 | Scale Factor of Second Fixed Surface |
| 56-59 | 4 | Scaled Value of Second Fixed Surface |
| 60 | 1 | Type of ensemble forecast (see Code table 4.6) |
| 61-64 | 4 | Perturbation number |
| 65-68 | 4 | Number of forecasts in ensemble |
| 69-70 | 2 | Year of end of overall time interval |
| 71 | 1 | Month of end of overall time interval |
| 72 | 1 | Day of end of overall time interval |
| 73 | 1 | Hour of end of overall time interval |
| 74 | 1 | Minute of end of overall time interval |
| 75 | 1 | Second of end of overall time interval |
| 76 | 1 | n - number of time range specifications describing the time intervals used to calculate the statistically processed field |
| 77-80 | 4 | Total number of data values missing in statistical process |
| 81 - 92 Specification of the outermost (or only) time range over which statistical processing is done | ||
| 81 | 1 | Statistical process used to calculate the processed field from the field at each time increment during the time range (see code table 4.10) |
| 82 | 1 | Type of time increment between successive fields used in the statistical processing (see code table 4.11) |
| 83 | 1 | Indicator of unit of time for time range over which statistical processing is done (see code table 4.4) |
| 84-87 | 4 | Length of the time range over which statistical processing is done, in units defined by the previous octet |
| 88 | 1 | Indicator of unit of time for the increment between the successive fields used (see code table 4.4) |
| 89-92 | 4 | Time increment between successive fields, in units defined by the previous octet |
| 93- nn These octets are included only if n > 1, where nn = 80+ 12 x n | ||
| 93-104 | 12 | As octets 81 to 92, next innermost step of processing |
| 105-nn | n/a | Additional time range specifications, included in accordance with the value of n. Contents as octets 81 to 92, repeated as necessary |
Requestor(s)
Sebastien Villaume (ECMWF)
Robert Osinski (ECMWF)
Stakeholder(s)
ECMWF
Expected impact of change
None
Consultations
No response
Data exchange plans
ECMWF plans to produce and disseminate data using these new templates
Comments
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