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| Titel |
A new approach to sensitivity climatologies: the DTS-MEDEX-2009 campaign |
| VerfasserIn |
A. Jansa, P. Arbogast, A. Doerenbecher, L. Garcies, A. Genovés, V. Homar, S. Klink, D. Richardson, C. Sahin |
| 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 ; 11, no. 9 ; Nr. 11, no. 9 (2011-09-01), S.2381-2390 |
| Datensatznummer |
250009664
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| Publikation (Nr.) |
 copernicus.org/nhess-11-2381-2011.pdf |
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| Zusammenfassung |
Adaptive observation is an approach to improving the quality of numerical
weather forecasts through the optimization of observing networks. It is
sometimes referred to as Data Targeting (DT). This approach has been applied
to high impact weather during specific field campaigns in the past decade.
Adaptive observations may involve various types of observations, including
either specific research observing platforms or routine observing platforms
employed in an adaptive way. The North-Atlantic TReC 2003 and the
EURORISK-PREVIEW 2008 exercises focused on the North-Atlantic and Western
Europe areas using mainly routine observing systems. These campaigns also
included Mediterranean cases.
The most recent campaign, DTS-MEDEX-2009, is the first campaign in which the
DT method has been used to address exclusively Mediterranean high impact
weather events. In this campaign, which is an important stage in the MEDEX
development, only operational radiosonde stations and commercial aircraft
data (AMDAR) have provided additional observations. Although specific
diagnostic studies are needed to assess the impact of the extra-observations
on forecast skill and demonstrate the effectiveness of DTS-MEDEX-2009, some
preliminary findings can be deduced from a survey of this targeting
exercise.
After a description of the data targeting system and some illustrations of
particular cases, this paper attempts some comparisons of additional
observation needs (through effectively deployed radio-soundings) with
sensitivity climatologies in the Mediterranean. The first step towards a
sensitivity climatology for Mediterranean cases of high impact weather is
indirectly given by the frequency of extra-soundings launched from the
network of radiosonde stations involved in the DTS-MEDEX-2009 campaign. |
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