 |
| Titel |
Quantitative precipitation and streamflow forecast for two recent extreme
hydro-meteorological events in Southern Italy with a fully-coupled model
system |
| VerfasserIn |
Giuseppe Mendicino, Alfonso Senatore |
| Konferenz |
EGU General Assembly 2016
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250127471
|
| Publikation (Nr.) |
 EGU/EGU2016-7352.pdf |
|
|
|
|
|
| Zusammenfassung |
| Two severe hydro-meteorological events affected Calabria Region (Southern Italy) in the
second half of the year 2015. The first event, on August 12th, focused on a relatively small
area near the northern Ionian coast, resulted in a rainfall intensity of about 230 mm in 24
hours involving flash flooding with several million Euros of damages. The second event
mainly affected the southern Ionian coast, was more persistent (it lasted from October 30th to
November 2nd), interested a wider area and led to recorded rainfall values up to 400 mm in
24 hours and 700 mm in 48 hours, resulting in severe flooding, landslides and a human
loss.
The fully two-way dynamically coupled atmosphere-hydrology modeling system
WRF-Hydro is used to reproduce both the events, in order to assess its skill in forecasting
both quantitative precipitation and streamflow with initial and lateral atmospheric boundary
conditions given by the recently available 0.25˚ output resolution GFS grid dataset.
Precipitation estimates provided by 2 km-resolution atmospheric model are compared with
both ground-based data and observations from a National Civil Protection Department
single-polarization Doppler radar. Discharge data from the rivers and creeks affected by
heavy precipitation are not available, then streamflow results are compared with either official
discharge estimates provided by authorities (first event) or recorded river stages (second
event).
Results show good performances of the fully-coupled hydrometeorological prediction
system which allows an improved representation of the coupled atmospheric and terrestrial
processes and provides an integrated solution for the regional water cycle modeling, from
atmospheric processes to river outlets. |
|
|
|
|
|
|