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With the implementation of IFS cycle 48r1 including the higher resolution ENS system and a separate daily ENS extended run, we are updating the ECaccess TC-1 ECaccess  events, as described below.

ENS extended forecasts and re-forecasts.

All the pre- cycle 48r1  ENS extended forecast related events listed hereafter will be discontinued. See command 'ecaccess-event-list':

...

No Format
4300       ext00h1104           At this stage, the Extended Ensemble Forecast products have been updated.
4301       ext00h1104ref        At this stage, the Extended Ensemble reforecast products have been updated.

We will not migrate the user's TC-1 jobs subscribing to the ECaccess ENS Extended (mofc) events. Users will have to adapt their existing jobs and submit them to either of the two new ENS extended events. See command 'ecaccess-job-submit'.

Note
titleENS extended events

  1. Event ext00h1104 will be triggered daily, when the ENS Extended forecasts are available, cf. our availablen according to the dissemination schedule. If you want to keep using ENS Extended data only on Mondays and Thursdays, like before the implementation of cycle 48r1, you will have to add some testing on the day of the week in your TC-1 ECacces job. This can be done with the 'date' command, e.g. in the KSH:

    No Format
    day_of_week=$(date +%a --date=$MSJ_YEAR$MSJ_MONTH$MSJ_DAY)
case $day_of_week in
    Mon|Thu)
    echo 'I extract the ENS extended data on MonMondays and ThuThursdays ...'
    *) ;;
esac


  2. Event ext00h1104ref will be triggered when the ENS extended re-forecasts are first generated. This is about 2 weeks or so before the availability of the ENS reforecasts following the dissemination schedule (the MSJ_ date variables will point to a date about 2 weeks ahead of the current date)available according to the dissemination schedule.

  3. Please remember to use the MSJ_ variables defined for you in your TC-1 ECaccess Time Critical jobs. I.e. by using the MSJ_EXPVER variable in your MARS requests, your TC-1 ECaccess Time Critical jobs will work continue working before and after the implementation date of the - any - new IFS cycle.

ENS re-forecasts.

The ENS forecasting system has its own re-forecasts (MARS streams ENFH and ENWH). A new TC-1 ECaccess event has been created that will be triggered when these data are first available, about 2 weeks before the official dissemination schedule, like for the ENS extended re-forecastsbecoming available according to the dissemination schedule.

No Format
4302       ef00h360ref          At this stage, the mid-range ensemble reforecast products have been updated.

Other changes.

Two new MSJ_ variables are defined for your convenience in TC-1 ECaccess Time Critical jobs:

  • MSJ_MEMBERS contains the number of (perturbed) members if in the forecast stream, e.g. currently 100 members for ENS extended or 10 members for the re-forecasts.
  • MSJ_IFS_CYCLE contains the IFS cycle in use.

See hereafter for an example with the full list of MSJ_ variables defined in an ENS Extended re-forecast TC-1 ECaccess job.

No Format
MSJ_BASETIME=00
MSJ_DAY=22
MSJ_EVENT=ext00h1104ref
MSJ_EXPVER=0078
MSJ_IFS_CYCLE=48r1
MSJ_MEMBERS=10
MSJ_MONTH=05
MSJ_STEP=1104
MSJ_YEAR=2023

...