Borssele case studies
The nuclear power plant near Borssele is located at 51°25´51˝N, 3°43´06˝E (see Wikipedia).
Case studies for Borssele will be performed for a few different scenarios:
| Scenario || date ||
| Easy || 11 Jan 2017 || Test set || deterministic
| Borssele 1 || ensemble
| Frontal passage || 12 Jan 2017 || Borssele 2 || ensemble
Meteorological lagged ensembles have been constructed from archived data from the Harmonie-AROME
The Easy scenario
In the Easy scenario meteorological uncertainties are small and the wind is blowing to
A first dataset to test the suitability for all the used models consists of the deterministic
forecast from Harmonie-AROME with standard settings for the 06 UTC run of 11 Jan
2017. Time steps are hourly up to T+48.
Harmonie-AROME code values can be found through the link on the right.
The data were originally created in FA format on a Lambert grid. For day-to-day operations
these data are converted to WMO-GRIB format on a regular 300x300 lat/lon grid from 49.000˚N
— 55.877˚N and 0.000˚E — 11.063˚E. These data are archived for later use.
The data that are supplied are the lat/lon GRIB data as archived. Moreover, the data are
also converted to NetCDF for convenience.
A lagged hybrid ensemble was created starting on 6 UTC on 11 Jan 2017 with a total
length of 72 hours. This is described in detail through the links in the menu on the right.
The Borssele-2 scenario
For the second scenario we have been looking for more variation in wind direction, especially
during the time of the release. The passage of a front around 18 UTC on 12 Jan 2017
seems a suitable candidate.
The meteorological ensemble forecast starts at 6 UTC on 12 Jan 2017 and has a total
length of 60 hours.
The release should take place between 15 UTC and 21 UTC on 12 Jan 2017.
We prepared an ensemble dataset, the same way as for the Easy scenario. This time, however,
we omitted the confusing instantaneous precipitation parameters, rain, snow
and graupel on model levels and surface. We only retained rain, snow
and graupel at the surface, integrated over the past hour.