scholarly journals Interannual sea level variability in the western North Atlantic: Regional forcing and remote response

2013 ◽  
Vol 40 (22) ◽  
pp. 5915-5919 ◽  
Author(s):  
M. Andres ◽  
G. G. Gawarkiewicz ◽  
J. M. Toole
Keyword(s):  
Sea Level ◽  
North Atlantic ◽  
Sea Level Variability ◽  
Remote Response

Application of a barotropic model to North Atlantic synoptic sea level variability

1996 ◽  
Vol 54 (3) ◽  
pp. 451-469 ◽  
Author(s):  
Richard J. Greatbatch ◽  
Youyu Lu ◽  
Brad d. Young
Keyword(s):  
Sea Level ◽  
North Atlantic ◽  
Sea Level Variability ◽  
Barotropic Model

scholarly journals Satellite Altimetry and Tide Gauge Observed Teleconnections between Long-Term Sea Level Variability in the U.S. East Coast and the North Atlantic Ocean

2019 ◽  
Vol 11 (23) ◽  
pp. 2816
Author(s):  
Qing Xu ◽  
Kai Tu ◽  
Yongcun Cheng ◽  
Weiping Wang ◽  
Yongjun Jia ◽  
...  
Keyword(s):  
Sea Level ◽  
North Atlantic ◽  
Satellite Altimetry ◽  
North Atlantic Ocean ◽  
Tide Gauge ◽  
Atlantic Multidecadal Oscillation ◽  
Meridional Overturning Circulation ◽  
Sea Level Variability ◽  
Tropical North Atlantic ◽  
Cape Hatteras

Rising sea levels amplify the threat and magnitude of storm surges in coastal areas. The U.S. east coast region north of Cape Hatteras has shown a significant sea level rise acceleration and is believed to be a “hot-spot” for accelerating tidal flooding. To better understand the forcing mechanism of long-term regional sea level change, in order to more efficiently implement local sea level rise adaptation and mitigation measures, this work investigated the teleconnections between low-frequency sea level variability in the coastal region north of Cape Hatteras and the subpolar/tropical North Atlantic Ocean by using tide gauge measurements, satellite altimetry data and a sea level reconstruction dataset. The correlation analysis demonstrates that the tide-gauge measured sea level variability in the area north of Cape Hatteras is highly and positively correlated with that observed by satellite altimetry in the subpolar and tropical North Atlantic between 1993 and 2002. Over the following decade (2003–2012), the phase of the teleconnection in the subpolar region was reversed and the spatio-temporal correlation in the tropical North Atlantic was enhanced. Furthermore, the positive correlation in the region north of Cape Hatteras’s near shore area is strengthened, while the negative correlation in the Gulf Stream front region is weakened. The North Atlantic Oscillation and Atlantic Multidecadal Oscillation, which affect variations of the Atlantic Meridional Overturning Circulation and Gulf Stream, were shown to have significant impacts on the decadal changes of the teleconnections. Coherent with satellite altimetry data, the reconstructed sea level dataset in the 20th century exhibits similar spatial correlation patterns with the Atlantic Meridional Overturning Circulation, North Atlantic Oscillation and Atlantic Multidecadal Oscillation indices.

scholarly journals Influence of macroscale and regional circulation patterns on low- and high-frequency sea level variability in the Baltic Sea

2021 ◽  
Author(s):  
Ewa Bednorz ◽  
Arkadiusz M. Tomczyk
Keyword(s):  
Baltic Sea ◽  
Sea Level ◽  
North Atlantic ◽  
Cold Season ◽  
The Baltic Sea ◽  
Sea Level Variability ◽  
The North ◽  
Synoptic Conditions ◽  
The North Atlantic ◽  
The Baltic

AbstractThe atmospheric impact on sea level variability in the Baltic Sea on different time scales was investigated. The Northern Hemisphere teleconnection patterns, namely, the North Atlantic Oscillation (NAO), Arctic Oscillation (AO) and Scandinavia (SCAND) patterns, were employed, and a strong but non-stationary relationship was found. The SCAND appeared to be most relevant to the mean monthly Baltic Sea level variations throughout the year. A negative correlation indicates that a cyclonic centre over Scandinavia in the negative phase of SCAND enhances western circulation, which then triggers water inflow through the Danish straits. The AO annular mode reveals a positive and slightly stronger relationship with the Baltic Sea level than the NAO. The rapid increases in the Baltic Sea level recognized in this study, namely, those exceeding 24 cm within a 5-day period, mainly occur in the cold season. These increases are associated with the development of specific synoptic conditions in the Euro-Atlantic region, characterized by a shift from high to low pressure over Europe and a rapid increase in the pressure gradient during the week preceding the sea level rise. Rapid increases are associated with cyclones coming from the North Atlantic, which move 1500–2000 km during the week preceding the strong rise of the Baltic waters. The cyclone tracks may be shifted north or south, while the final position is over the Norwegian Sea.

Assessment of mass-induced sea level variability in the Tropical Indian Ocean based on GRACE and altimeter observations

2021 ◽  
Vol 95 (2) ◽  
Author(s):  
Shiva Shankar Manche ◽  
Rabindra K. Nayak ◽  
Prakash Chandra Mohanty ◽  
M. V. R. Shesasai ◽  
V. K. Dadhwal
Keyword(s):  
Indian Ocean ◽  
Sea Level ◽  
Tropical Indian Ocean ◽  
Sea Level Variability
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