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| Titel |
Impacts on wave-driven harbour agitation due to climate change in Catalan ports |
| VerfasserIn |
J. P. Sierra, M. Casas-Prat, M. Virgili, C. Mosso, A. Sánchez-Arcilla |
| 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 Sciences ; 15, no. 8 ; Nr. 15, no. 8 (2015-08-03), S.1695-1709 |
| Datensatznummer |
250119629
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| Publikation (Nr.) |
 copernicus.org/nhess-15-1695-2015.pdf |
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| Zusammenfassung |
| The objective of the present work is to analyse how changes in wave patterns
due to the effect of climate change can affect harbour agitation
(oscillations within the port due to wind waves). The study focuses on 13
harbours located on the Catalan coast (NW Mediterranean) using a methodology
with general applicability. To obtain the patterns of agitation, a
Boussinesq-type model is used, which is forced at the boundaries by
present/future offshore wave conditions extracted from recently developed
high-resolution wave projections in the NW Mediterranean. These wave
projections were obtained with the SWAN model forced by present/future
surface wind fields projected, respectively, by five different combinations of
global and regional circulation models (GCMs and RCMs) for the A1B scenario.
The results show a general slight reduction in the annual average agitation
for most of the ports, except for the northernmost and southernmost areas of
the region, where a slight increase is obtained. A seasonal analysis reveals
that the tendency to decrease is accentuated in winter. However, the
inter-model variability is large for both the winter and the annual
analysis. Conversely, a general increase with a larger agreement among
models is found during summer, which is the period with greater activity in
most of the studied ports (marinas). A qualitative assessment of the factors
of variability seems to indicate that the choice of GCM tends to affect the
spatial pattern, whereas the choice of RCM induces a more homogeneous bias
over the regional domain. |
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