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| Titel |
Coupling X-band dual-polarized mini-radars and hydro-meteorological forecast models: the HYDRORAD project |
| VerfasserIn |
E. Picciotti, F. S. Marzano, E. N. Anagnostou, J. Kalogiros, Y. Fessas, A. Volpi, V. Cazac, R. Pace, G. Cinque, L. Bernardini, K. Sanctis, S. Fabio, M. Montopoli, M. N. Anagnostou, A. Telleschi, E. Dimitriou, J. Stella |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 5 ; Nr. 13, no. 5 (2013-05-16), S.1229-1241 |
| Datensatznummer |
250018444
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| Publikation (Nr.) |
 copernicus.org/nhess-13-1229-2013.pdf |
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| Zusammenfassung |
Hydro-meteorological hazards like convective outbreaks leading to torrential
rain and floods are among the most critical environmental issues world-wide.
In that context weather radar observations have proven to be very useful in
providing information on the spatial distribution of rainfall that can
support early warning of floods. However, quantitative precipitation
estimation by radar is subjected to many limitations and uncertainties. The
use of dual-polarization at high frequency (i.e. X-band) has proven
particularly useful for mitigating some of the limitation of operational
systems, by exploiting the benefit of easiness to transport and deploy and
the high spatial and temporal resolution achievable at small antenna sizes.
New developments on X-band dual-polarization technology in recent years have
received the interest of scientific and operational communities in these
systems. New enterprises are focusing on the advancement of cost-efficient
mini-radar network technology, based on high-frequency (mainly X-band) and
low-power weather radar systems for weather monitoring and
hydro-meteorological forecasting.
Within the above context, the main objective of the HYDRORAD project was the
development of an innovative \mbox{integrated} decision support tool for weather
monitoring and hydro-meteorological applications. The integrated system tool
is based on a polarimetric X-band mini-radar network which is the core of
the decision support tool, a novel radar products generator and a
hydro-meteorological forecast modelling system that ingests mini-radar
rainfall products to forecast precipitation and floods.
The radar products generator includes algorithms for attenuation correction,
hydrometeor classification, a vertical profile reflectivity correction, a
new polarimetric rainfall estimators developed for mini-radar observations,
and short-term nowcasting of convective cells. The hydro-meteorological
modelling system includes the Mesoscale Model 5 (MM5) and the Army Corps of
Engineers Hydrologic Engineering Center hydrologic and hydraulic modelling
chain. The characteristics of this tool make it ideal to support flood
monitoring and forecasting within urban environment and small-scale basins.
Preliminary results, carried out during a field campaign in Moldova, showed
that the mini-radar based hydro-meteorological forecasting system can
constitute a suitable solution for local flood warning and civil flood
protection applications. |
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