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  • 1
    Online Resource
    Online Resource
    Baltic Region—The Region of Cooperation (2020)
    Cham : Springer
    Details Availability
    Keywords: Geography, general ; Geography
    Description / Table of Contents: The Baltic macroregion is a platform for the development of different areas of international cooperation, which are an important factor affecting the socioeconomic growth of the region’s states. The deteriorating political relations between Russia and its Baltic neighbours complicate the development of mutual connections. However, economic and sociocultural cooperation and joint environmental projects continue despite all the difficulties. Based on recent studies carried out by Russian and Polish researchers, this book examines current trends in the socioeconomic development of the region’s countries and various forms of transboundary cooperation and provides recommendations for further development. Special attention is paid to sustainable environmental management and environmental protection, transboundary ties among companies and among people, the development of international tourism, opportunities for reinforcing the contact function of the border, and spatial planning. The book addresses theoretical problems that are of crucial significance to economic development and transboundary cooperation, namely, those of path dependence, the emerge
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (X, 296 p)
    Edition: 1st ed. 2020
    ISBN: 9783030145194
    Series Statement: Springer Proceedings in Earth and Environmental Sciences
    URL: https://doi.org/10.1007/978-3-030-14519-4
    DOI: 10.1007/978-3-030-14519-4
    Language: English
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  • 2
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    Arctic pathways of Pacific Water: Arctic Ocean Model Intercomparison experiments (2016)
    Wiley
    In:  EPIC3Journal of Geophysical Research-Oceans, Wiley, 121(1), pp. 27-59, ISSN: 0148-0227
    Details
    Publication Date: 2016-11-23
    Description: Pacific Water (PW) enters the Arctic Ocean through Bering Strait and brings heat, fresh water and nutrients from the northern Bering Sea. The circulation of PW in the central Arctic Ocean is only partially understood due to the lack of observations. In this paper pathways of PW are investigated using simulations with six state-of-the art regional and global Ocean General Circulation Models (OGCMs). In the simulations PW is tracked by a passive tracer, released in Bering Strait. Simulated PW water spreads from the Bering Strait region in three major branches. One of them starts in the Barrow Canyon, bringing PW along continental slope of Alaska into the Canadian Straits and then into Baffin Bay. The other initiates in the vicinity of the Herald Canyon and transports PW along the continental slope of the East-Siberian Sea into the transpolar drift, and then through Fram Strait and the Greenland Sea. The third branch begins near the Herald Shoal and the central Chukchi shelf and brings PW waters into the Beaufort Gyre. Models suggest that the spread of PW through the Arctic Ocean depends on the atmospheric circulation. In the models the wind, acting via Ekman pumping, drives the seasonal and interannual variability of PW in the Canadian Basin of the Arctic Ocean. The wind effects the simulated PW pathways by changing vertical shear of the relative vorticity of the ocean flow in the Canada Basin. This article is protected by copyright. All rights reserved.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 3
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    Modeling efforts for the Lena delta and Laptev Sea regions (2016)
    In:  EPIC3Biogeochemical processes in the Lena Delta and Laptev Sea regions, AWI, Potsdam, 2016-06-25-2016-06-27
    Details
    Publication Date: 2018-02-16
    Description: The Lena River is one of the largest rivers in the Arctic and has the largest delta. Given the large territory of the Lena Delta, the direct measurements are by far insufficient, calling for a modeling approach. However, most of the models, which include the Laptev Sea shelf zone, do not resolve the Lena Delta and as a consequence lose information about Lena river stream changes using input data with insufficient quality. In the current work we present the hydrodynamics model for the Lena Delta region and full baroclinic model for the Laptev Sea shelf area. The available hydrological information in the Lena Delta was collected, analyzed and used for the model verification. The developed hydrodynamics model provides the first necessary step for the further modeling efforts in the area. It also gives an input for the larger scale models resolving hydrodynamics of more than twenty main Lena River freshwater channels with switched-on wetting/drying option. Additionally the Lena Plume dynamics in the Lena Delta region of the Laptev Sea are explored by us in simulations performed with the FVCOM (Finite Volume Coastal Ocean Model). The impact of winds and tides on the Lena plume propagation is analysed based on simulations for the summer season of 2008 and also on idealized experiments. For that period, the simulated distributions of temperature and salinity agree well with the observations, including the thick-ness and border position of the buoyant plume. The model simulates the most energetic semi-diurnal and diurnal tidal constituents. The amplitudes and phases of the tidal components at the open boundary were derived from AOTIM5 and TPXO7.1 with corrections. These corrections noticeably improve the agreement of the modelled tidal maps with available tide gauge data.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 4
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    A comparison of vertical mixing parametrizations in the simulation of the ice and upper ocean state based on the Arctic Ocean model (2016)
    In:  EPIC3FAMOS, Woods Hole, USA, 2016-11-02-2016-11-04
    Details
    Publication Date: 2017-02-06
    Description: The vertical mixing in the ocean plays an important role in regulating sea surface temperature, which is a critical oceanic parameter, controlling the atmosphere-ocean heat ,energy and momentum exchanges. Because of the small-scale turbulent processes involved, the vertical mixing usually cannot be explicitly resolved in ocean general circulation models and has to be parametrized. The three-dimensional coupled ice-ocean numerical model used in this study, is based upon the ocean model, developed in the Institute of Computational Mathematics and Mathematical Geophysics, SB RAS, and Sea ice-model- (CICE 3.14- (http://oceans11.lanl.gov/drupal/CICE) , adapted to the region of the North Atlantic (1x1 degree) and the Arctic Ocean(35 -50km). Several one-dimensional vertical mixing parametrizations were implemented from GOTM package (General Ocean Turbulence Model, http://www.gotm.net/). Among them: nonlocal K-profile parameterization (KPP, [1]), Total Kinetic Energy (TKE) with first order [2] and second order [3] coefficients . These vertical parameterizations were compared with more simple adjustment procedure based on the Richardson number, previously used in the ICMMG ocean model. The parametrization were tested in numerical experiments which were aimed to simulate the variability of the Arctic Ocean state under atmospheric forcing (NCEP/NCAR,1948-1912).
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 5
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    A high-resolution numerical study on the hydrodynamics in the Lena Delta (2015)
    In:  EPIC3Numerical modeling of the coastal, shelf and estuarine processess, Rostov-on-Don, I.I. Vorovich Institute of Mathematics, Mechanics and Computer Science of Southern Federal University, Russia, 2015-10-05-2015-10-09
    Details
    Publication Date: 2016-04-27
    Description: Providing the majority of runoff into the Laptev Sea, the Lena River and its associated delta have become an indicator for recent and future environmental change in the Arctic Region. However, a detailed examination on the hydrodynamics over complex topography in the delta region and its interaction with the estuary has been missing. This study aims to fill this gap by a series of high-resolution numerical simulations based on a state-of-the-arts Discontinous Galerkin (DG) regional 3D ocean model, UTBEST3D, under different discharge conditions. The first task is to tune the numerical model and reproduce the velocity regimes and discharge distributions in different major sub-channels in the delta. The second task is to scrutinise the potential flooding area due to ocean surface waves, river runoff and the coupling of these.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 6
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    Modelling the Long-Term and Inter-Annual Variability in the Laptev Sea Hydrography and Subsea Permafrost State (2018)
    Alfred Wegener Institute for Polar and Marine Research
    In:  EPIC3Polarforschung, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 87(2), pp. 195-210, ISSN: 0032-2490
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Polarforschung" , peerRev
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  • 7
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    The simulations of the Lena River estuary dynamics (2015)
    In:  EPIC3FAMOS2015, 2015-11-03-2015-11-06
    Details
    Publication Date: 2018-02-16
    Description: The Lena River is one of the largest rivers in the Arctic and has the largest delta. Given the large territory of the Lena Delta, the direct measurements are by far insufficient, calling for a modeling approach. However, most of the models, which include the Laptev Sea shelf zone, do not resolve the Lena Delta and as a consequence lose information about Lena river stream changes using input data with insufficient quality. In the current work we present the hydrodynamics model for the Lena Delta region and full baroclinic model for the Laptev Sea shelf area. The available hydrological information in the Lena Delta was collected, analyzed and used for the model verification. The developed hydrodynamics model provides the first necessary step for the further modeling efforts in the area. It also gives an input for the larger scale models resolving hydrodynamics of more than twenty main Lena River freshwater channels with switched on wetting/drying option. Additionally the Lena Plume dynamics in the Lena Delta region of the Laptev Sea are explored by us in simulations performed with the FVCOM (Finite Volume Coastal Ocean Model). The impact of winds and tides on the Lena plume propagation is an alysed based on simulations for the summer season of 2008 and also on idealized experiments. For that period, the simulated distributions of temperature and salinity agree well with the observations,including the thickness and border position of the buoyant plume. The model simulates the most energetic semidiurnal and diurnal tidal constituents. The amplitudes and phases of the tidal components at the open boundary were derived from AOTIM5 and TPXO7.1 with corrections. These corrections noticeably improve the agreement of the modelled tidal maps with available tide gauge data.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 8
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    Numerical simulation of the Lena River estuary dynamics using SELFE (2015)
    In:  EPIC3CITES2015, Tomsk, SCERT, Russia, 2015-06-26-2015-06-30
    Details
    Publication Date: 2018-02-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 9
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    Recent advances in Arctic ocean studies employing models from the Arctic Ocean Model Intercomparison Project (2011)
    Oceanography Society
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © Oceanography Society, 2011. This article is posted here by permission of Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 24 no. 3 (2011): 102–113, doi:10.5670/oceanog.2011.61.
    Description: Observational data show that the Arctic Ocean has significantly and rapidly changed over the last few decades, which is unprecedented in the observational record. Air and water temperatures have increased, sea ice volume and extent have decreased, permafrost has thawed, storminess has increased, sea level has risen, coastal erosion has progressed, and biological processes have become more complex and diverse. In addition, there are socio-economic impacts of Arctic environmental change on Arctic residents and the world, associated with tourism, oil and gas exploration, navigation, military operations, trade, and industry. This paper discusses important results of the Arctic Ocean Model Intercomparison Project, which is advancing the role of numerical modeling in Arctic Ocean and sea ice research by stimulating national and international synergies for high-latitude research.
    Description: This research is supported by the National Science Foundation Office of Polar Programs, awards ARC-0804010, ARC-80630600, ARC-81284800 and ARC-82486400.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 10
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    Mechanisms of Pacific Summer Water variability in the Arctic's Central Canada Basin (2015)
    John Wiley & Sons
    Details
    Publication Date: 2022-05-26
    Description: © The Author(s), 2014. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Journal of Geophysical Research: Oceans 119 (2014): 7523–7548, doi:10.1002/2014JC010273.
    Description: Pacific Water flows northward through Bering Strait and penetrates the Arctic Ocean halocline throughout the Canadian Basin sector of the Arctic. In summer, Pacific Summer Water (PSW) is modified by surface buoyancy fluxes and mixing as it crosses the shallow Chukchi Sea before entering the deep ocean. Measurements from Ice-Tethered Profilers, moorings, and hydrographic surveys between 2003 and 2013 reveal spatial and temporal variability in the PSW component of the halocline in the Central Canada Basin with increasing trends in integrated heat and freshwater content, a consequence of PSW layer thickening as well as layer freshening and warming. It is shown here how properties in the Chukchi Sea in summer control the temperature-salinity properties of PSW in the interior by subduction at isopycnals that outcrop in the Chukchi Sea. Results of an ocean model, forced by idealized winds, provide support to the mechanism of surface ocean Ekman transport convergence maintaining PSW ventilation of the halocline.
    Description: Funding was provided by the National Science Foundation Division of Polar Programs under award 1107623, 1313614, 1107412, 1107277, 1303644, and 0938137 and by Yale University. ICMMG model development was supported by the Russian Fund for Basic Research (14-05-00730A).
    Keywords: Arctic Ocean ; Halocline ventilation ; Pacific Water
    Repository Name: Woods Hole Open Access Server
    Type: Article
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