 |
| Titel |
Historical variation and trends in storminess along the Portuguese South Coast |
| VerfasserIn |
L. P. Almeida, Ó. Ferreira, M. I. Vousdoukas, G. Dodet |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 9 ; Nr. 11, no. 9 (2011-09-02), S.2407-2417 |
| Datensatznummer |
250009666
|
| Publikation (Nr.) |
 copernicus.org/nhess-11-2407-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| This work investigates historical variation and trends in storm climate for
the South Portugal region, using data from wave buoy measurements and from
modelling, for the period 1952 to 2009. Several storm parameters (annual
number of storms; annual number of days with storms; annual maximum and mean
individual storm duration and annual 99.8th percentile of significant
wave height) were used to analyse: (1) historical storminess trends; (2) storm
parameter variability and relationships; and (3) historical storminess
and its relationship to the North Atlantic Oscillation (NAO). No
statistically significant linear increase or decrease was found in any of
the storm parameters over the period of interest. The main pattern of storm
characteristics and extreme wave heights is an oscillatory variability with
intensity peaks every 7–8 yr, and the magnitude of recent variations is
comparable with that of variations observed in the earlier parts of the
record. In addition, the results reveal that the NAO index is able to
explain only a small percentage of the variation in storm wave height,
suggesting that more local factors may be of importance in controlling
storminess in this region. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|