In:
Journal of Climate, American Meteorological Society, ( 2021-10-04), p. 1-44
Kurzfassung:
This study presents and analyzes Environment Canada’s Davis Strait Baffin Bay (EC-DSBB) Wind and Wave Reanalysis for the period 1979-2016, to characterize the historical changes in the surface wind speed and ocean surface waves. The trend analysis is carried out only for the months of May-December, when there is a significant ice-free sea area. The results show that 10-meter wind speed ( W s ) has increased significantly in most area of the domain in September-December, with some significant decreases over the open water area in June and July. The W s increases are most extensive in September, with significant increases in both the mean and extremes. It is also shown that the mean wind direction ( W d ) has a distinctive seasonal variation, being mainly north- and northwest-ward in June-August, and predominantly south- and southeast-ward in May and September-December. The most notable changes in W d are seen in June. The results also show that significant wave height ( H s ) and wave power ( W p ) have significantly increased in September-December and decreased in June. For example, the September regional mean H s has increased at a rate of 0.4%/year. In September-December, the local W s increases seem to be the main driver for the H s and W p increases, but such southeast-ward direction is favored by increasing fetch as sea ice retreats. In September and December, the positive trend in both W s and H s has intensified in the 2001-2016. In June, however, the mean W d and the changes therein also play an important role in the H s changes, which are more affected by remotely generated waves.
Materialart:
Online-Ressource
ISSN:
0894-8755
,
1520-0442
DOI:
10.1175/JCLI-D-21-0054.1
DOI:
10.1175/JCLI-D-21-0054.s1
Sprache:
Unbekannt
Verlag:
American Meteorological Society
Publikationsdatum:
2021
ZDB Id:
246750-1
ZDB Id:
2021723-7
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