Satellite altimetry reveals spatial patterns of variations in the Baltic Sea wave climate

被引：24
作者：
Kudryavtseva, Nadezhda [1 ]
Soomere, Tarmo [1 ,2 ]
机构：
[1] Tallinn Univ Technol, Wave Engn Lab, Dept Cybernet, Sch Sci, Akad Tee 21, EE-12618 Tallinn, Estonia
[2] Estonian Acad Sci, Kohtu 6, EE-10130 Tallinn, Estonia
来源：
EARTH SYSTEM DYNAMICS | 2017年 / 8卷 / 03期
关键词：
MEDITERRANEAN SEA; NORTH-ATLANTIC; HEIGHT; TRENDS; WIND; VARIABILITY; VALIDATION; REGION; OCEAN; HEMISPHERE;
D O I：
10.5194/esd-8-697-2017
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The main properties of the climate of waves in the seasonally ice-covered Baltic Sea and its decadal changes since 1990 are estimated from satellite altimetry data. The data set of significant wave heights (SWHs) from all existing nine satellites, cleaned and cross-validated against in situ measurements, shows overall a very consistent picture. A comparison with visual observations shows a good correspondence with correlation coefficients of 0.6-0.8. The annual mean SWH reveals a tentative increase of 0.005myr(-1), but higher quantiles behave in a cyclic manner with a timescale of 10-15 years. Changes in the basin-wide average SWH have a strong meridional pattern: an increase in the central and western parts of the sea and a decrease in the east. This pattern is likely caused by a rotation of wind directions rather than by an increase in the wind speed.
引用
收藏
页码：697 / 706
页数：10
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