Progress in physical oceanography of the Baltic Sea during the 2003–2014 period

Omstedt, Anders; Elken, Jüri; Lehmann, Andreas; Leppäranta, Matti; Meier, H. E. Markus; Myrberg, Kai; Rutgersson, Anna

doi:10.1016/j.pocean.2014.08.010

Cited by 102 publications

(66 citation statements)

References 262 publications

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“…Thereby, the linear trends calculations are very important for the coastal mean sea levels for detecting the anthropogenic climate change and NAO change. That is consistent with the findings of the Bengtsson [63] and Omsted et al [64] for the European near-surface temperature over the past 500 years when they found the warming trend was appearing as the accumulation of the warmest seasons over the last decades of the last century only causing by the increasing of the greenhouse gases.…”

supporting

confidence: 92%

Quantifying the Mean Sea Level Change at the Gulf of Finland Coast Caused by the Realistic Portion of the Global Warming Forcing

Mahmood¹

2015

JEASE

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Quantifying the coastal mean sea level change causing by the winter positive phase of the North Atlantic oscillation index NAO+ at the Gulf of Finland coast is of high priority for detecting and predicting the global warming impact in this region. Both boreal winter months and season of three long-term data station series of the coastal mean sea levels and the NAO indices were linked for two cases, i.e.: different periods and the 1977-1994 period. This study is dedicated to: (1) Detecting the exclusive impacts of the NAO+; (2) Estimating the significant standard bivariate linear regression models; (3) Calculating the climatic linear trend coefficient by using three methods (OLS, GLS, Theil-Sen); (4) Correcting the mean sea level series anomalies by using the significant linear regression equations as a function of NAO+ anomalies, over the period [1977][1978][1979][1980][1981][1982][1983][1984][1985][1986][1987][1988][1989][1990][1991][1992][1993][1994]; (5)

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supporting

confidence: 92%

Quantifying the Mean Sea Level Change at the Gulf of Finland Coast Caused by the Realistic Portion of the Global Warming Forcing

Mahmood¹

2015

JEASE

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“…In turn, this would lead to an improved parameterization of sub-grid processes in the numerical models that has been considered as a problem in the modeling of the relatively shallow, but stratified Baltic Sea sub-basins (Tuomi et al, 2012;Omstedt et al, 2014). It also allowed us to display some general features of spatiotemporal variability of temperature and salinity in the study region -the central Gulf of Finland.…”

Section: Discussionmentioning

confidence: 99%

Multi-sensor in situ observations to resolve the sub-mesoscale features in the stratified Gulf of Finland, Baltic Sea

et al. 2016

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Abstract. High-resolution numerical modeling, remote sensing, and in situ data have revealed significant role of submesoscale features in shaping the distribution pattern of tracers in the ocean's upper layer. However, in situ measurements are difficult to conduct with the required resolution and coverage in time and space to resolve the sub-mesoscale, especially in such relatively shallow basins as the Gulf of Finland, where the typical baroclinic Rossby radius is 2-5 km. To map the multi-scale spatiotemporal variability in the gulf, we initiated continuous measurements with autonomous devices, including a moored profiler and Ferrybox system, which were complemented by dedicated research-vesselbased surveys. The analysis of collected high-resolution data in the summers of 2009-2012 revealed pronounced variability at the sub-mesoscale in the presence of mesoscale upwelling/downwelling, fronts, and eddies. The horizontal wavenumber spectra of temperature variance in the surface layer had slopes close to −2 between the lateral scales from 10 to 0.5 km. Similar tendency towards the −2 slopes of horizontal wavenumber spectra of temperature variance was found in the seasonal thermocline between the lateral scales from 10 to 1 km. It suggests that the ageostrophic submesoscale processes could contribute considerably to the energy cascade in such a stratified sea basin. We showed that the intrusions of water with different salinity, which indicate the occurrence of a layered flow structure, could appear in the process of upwelling/downwelling development and relaxation in response to variable wind forcing. We suggest that the sub-mesoscale processes play a major role in feeding surface blooms in the conditions of coupled coastal upwelling and downwelling events in the Gulf of Finland.

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“…In recent decades, modelling in physical oceanography (and, obviously, not only in that field) has become a powerful numerical tool providing a wide image of the three-dimensional physical state of the sea (Omstedt et al 2014). Developments in computer technology resulted in the development of operational modelling systems.…”

Section: Introductionmentioning

confidence: 99%

eBalticGrid - an interactive platform for the visualisation of results from a high-resolution operational Baltic Sea model.

Jakacki

Przyborska

Nowicki

et al. 2017

Meteorol. Hydrol. Water Manage.

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Abstract. In recent years, modelling has been one of the fastest growing fields of science. Ocean, ice and atmospheric models have become a powerful tool that has supported many scientific fields during the last few decades. Our work Access to the results does not require any modelling knowledge. Therefore, the main interface between a user and the model results was designed as a portal providing easy access to the model's output. It will also be a very suitable tool for teaching students about the hydrology of the Baltic Sea. Data from the system are delivered to another operational system -SatBaltic (Woźniak et al. 2011). The development of an output format to be suitable for navigational software (GRIB files) and sharing via FTP is also planned.

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Progress in physical oceanography of the Baltic Sea during the 2003–2014 period

Cited by 102 publications

References 262 publications

Quantifying the Mean Sea Level Change at the Gulf of Finland Coast Caused by the Realistic Portion of the Global Warming Forcing

Quantifying the Mean Sea Level Change at the Gulf of Finland Coast Caused by the Realistic Portion of the Global Warming Forcing

Multi-sensor in situ observations to resolve the sub-mesoscale features in the stratified Gulf of Finland, Baltic Sea

eBalticGrid - an interactive platform for the visualisation of results from a high-resolution operational Baltic Sea model.

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