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The page will be updated as required. It was last changed on 0104.06.2018.
For a record of changes made to this page please refer to Document versions.
Further information and advice regarding the upgrade can be obtained from User Support.
Latest news!
04.06.2018
- The issue with the Cycle 45r1 Simulated Satellite imagery data (see below) has been identified to a change in the units for water and ice content of the new RTTOV-12 data. We are please to inform you that this issue has been fixed as of the 12UTC run of 2 June 2018. This issue has not affected any other data than the Simulated Satellite imagery.
01.06.2018
- The parameter CI (sea-ice fraction, paramId 31) has wrongly been encoded using 24 bits per value, instead of 16, for the Analyses in the Cycle 45r1 test data: This issue only affects the data archived in MARS, not the data available through the dissemination. The problem has been fixed as of the Analysis of 18UTC on 31 May 2018.
- We have identified an issue with the Cycle 45r1 Simulated Satellite imagery data. We are investigating this problem. These products may not be fixed in time for the implementation on 5 June. In this case, we will update the new Cycle 45r1 later to address this issue.
Comparison of simulated satellite imagery between cycle 43r3 and cycle 45r1. (Click on image to see the comparison) - May we remind our users to download the Cycle 45r1 expver 0072 re-forecasts from ECPDS, e.g for 4 June and 7 June, they need for their operational activities after the implementation of the new cycle.
- The implementation of the new cycle is confirmed for Tuesday 5 June 2018. The first operational run using the new cycle will be the 06 UTC analysis and forecast in the Boundary Conditions Optional Programme on 5 June followed by the 12 UTC main assimilation and forecast. The monthly forecast extension to the ensemble will be run with the new IFS cycle for the first time the following Thursday 7 June 2018.
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The planned timetable for the implementation of the IFS Cycle 45r1 is as follows:
| Date | Event |
|---|---|
21.03.2018 | Initial Publication |
| April 2018 | Initial announcement, with test data in MARS |
| May 2018 | Availability of test data in dissemination |
| 5 June 2018 | Expected date of implementation |
The timetable represents current expectations and may change in light of actual progress made.
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New bathymetry in wave modelsAnchor bathy bathy
With the IFS Cycle 45r1, we have upgraded the bathymetry (water depth) used in the wave models (HRES-WAM, HRES-SAW and ENS-WAM) based on ETOPO1.
The figures below show the new bathymetry used for HRES-WAM and ENS-WAM for Europe together with the difference with the previously used bathymetry (ETOPO2).
HRES-WAM
| IFS cycle 45r1 bathymetry (ETOPO1) | Difference between IFS cycle 43r3 and 45r1 bathymetries |
|---|---|
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ENS-WAM
| IFS cycle 45r1 bathymetry (ETOPO1) | Difference between IFS cycle 43r3 and 45r1 bathymetries |
|---|---|
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This change was in part driven by users pointing out that the previous bathymetry for the Baltic Sea was quite erroneous at few places. Change in water depth will mostly affect the wave fields in coastal area, generally resulting in higher wave heights where the water has become deeper and vice-versa.. Moreover, some WAM grid points have changed from sea to land (i.e. no waves at those points), and vice versa. These locations are respectively shown in the right figures above , with green and black shadings (you may need to zoom into the pictures). This change of land/sea points will be visible for some coastal locations in the Wave ENSgrams and for users relying exclusively on the wave model values at those locations.
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The GRIB model identifiers (generating process identification number) for cycle 45r1 will be changed as follows:
| GRIB 1 Section 1 Octets | GRIB 2 Section 4 Octets | grib_api key | Component | Model ID | |
|---|---|---|---|---|---|
| Old | New | ||||
| 6 | 14 | generatingProcessIdentifier | Atmospheric model | 148 | 149 |
| Ocean wave model | 113 | 114 | |||
| HRES stand-alone ocean wave model | 213 | 214 | |||
New model output parameters
Extended output have been added in cycle 45r1, including precipitation rates, CAPE indices and a total lightning flash density.
| paramId | Shortname | name | Description | units | GRIB edition | Component | Test data available | Dissemination | ecCharts | Added to the Catalogue |
|---|---|---|---|---|---|---|---|---|---|---|
| 228050 | litoti | Instantaneous total lightning flash density | Instantaneous value of total (cloud-to-cloud and cloud-to-ground) lightning flash density. See also here. | km-2 day-1 | 2 | HRES / ENS |  | | TBC | |
| 228051 | litota1 | Averaged total lightning flash density in the last hour | Averaged total (cloud-to-cloud and cloud-to-ground) lightning flash density in the last hour. See also here. | km-2 day-1 | 2 | HRES / ENS | | | TBC |  |
| 228057 | litota3 | Averaged total lightning flash density in the last 3 hours | Averaged total (cloud-to-cloud and cloud-to-ground) lightning flash density in the last 3 hours. See also here. | km-2 day-1 | 2 | HRES / ENS | | | TBC | |
| 228058 | litota6 | Averaged total lightning flash density in the last 6 hours | Averaged total (cloud-to-cloud and cloud-to-ground) lightning flash density in the last 6 hours. See also here. | km-2 day-1 | 2 | HRES / ENS | | | TBC | |
| 260048 | tprate | Total precipitation rate | Total precipitation rate (instantaneous) | kg m-2 s-1 | 2 | HRES / ENS | | | TBC | |
| 228035 | mxcape6 | maximum CAPE in the last 6 hours | Maximum CAPE in the last 6 hours. See also here. | J kg-1 | 2 | HRES / ENS | | | TBC | |
| 228036 | mxcapes6 | maximum CAPES in the last 6 hours | Maximum CAPE-shear in the last 6 hours. See also here. | m2 s-2 | 2 | HRES / ENS | | | TBC | |
| 162071 | viwve | Vertical integral of eastward water vapour flux | Vertical integral of eastward water vapour flux. See also here. | kg m-1 s-1 | 1 | HRES / ENS | | | TBC | |
| 162072 | viwvn | Vertical integral of northward water vapour flux | Vertical integral of northward water vapour flux. See also here. | kg m-1 s-1 | 1 | HRES / ENS | | | TBC | |
| 151131 | ocu | Ocean current zonal component | Ocean current zonal component | m s-1 | 1 | HRES / ENS | | | TBC | |
| 151132 | ocv | Ocean current meridional component | Ocean current meridional component | m s-1 | 1 | HRES / ENS | | | TBC | |
| Tip |
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For more details on the new lightning parameters, please read the Newsletter article "Promising results for lightning predictions". |
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Member State users of the "Simple time-critical jobs" framework can test that their scripts will work with the IFS Cycle 45r1 test data by using the limited ECaccess 'events' set up for this purpose:
| Event ID | Event name | Description |
|---|---|---|
| 1633 | e_ms090 | At this stage, the e-suite step 090 (HRES-BC) has been generated. |
| 1634 | e_ms144 | At this stage, the e-suite step 144 (ENS-BC) has been generated. |
| 1635 | e_ms240 | At this stage, the e-suite step 240 (HRES) has been generated. |
| 1636 | e_ms360 | At this stage, the e-suite step 360 (ENS) has been generated. |
| 1637 | e_mslaw | At this stage, the e-suite step law (HRES-SAW) has been generated. |
| 1638 | e_ms1104 | At this stage, the e-suite step 1104 (ENS-MOFC) has been generated. |
| 1639 | msrefc | At this stage, the e-suite step refc (REFORECAST) has been updated. |
For these events, MSJ_EXPVER environment variable is set to 0072 and can be used to specify the IFS Cycle 45r1 test data in any MARS retrievals.
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| Anchor | ||||
|---|---|---|---|---|
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| Date | Reason for update |
|---|---|
| 21.03.2018 |
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| 12.04.2018 |
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| 09.05.2018 |
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| 14.05.2018 |
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| 21.05.2018 |
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| 01.06.2018 |
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| 04.06.2018 |
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