Characteristics of natural neutron radiation background performed within the BSUIN project.

Author(s):  
Karol Jedrzejczak ◽  
Marcin Kasztelan ◽  
Jacek Szabelski ◽  
Przemysław Tokarski ◽  
Jerzy Orzechowski ◽  
...  

<p>The BSUIN (Baltic Sea Underground Innovation Network) aims to enhance the accessibility of the underground laboratories in the Baltic Sea region for innovation, business and science. One of the BSUIN project activities is characterization of natural background radiation (NBR) in underground facilities. A specific type of NRB is neutron radiation, whose measurement requires specific instruments and long-term exposure in-situ, in heavy underground conditions.</p><p>In this talk the method of natural neutron radiation background will be presented as well as results of pilot measurements in several underground locations. In order to make this measurements, a measuring setup was designed and made. The setup design is closely matched to the task: the setup is scalable in a wide range, completely remotely controlled (via the Internet) and capable of long-term operation (months).</p><p>The pilot measurements were performed in Callio Lab, Pyhäsalmi, Finland, (4100 m w.e.), in Reiche Zeche mine in Freiberg, Germany (410 m w.e.) and in Experimental Mine “Barbara” in Mikołów, Poland (100 m w.e).</p>

2020 ◽  
Author(s):  
Jan Kisiel ◽  
Kinga Polaczek-Grelik ◽  
Katarzyna Szkliniarz ◽  
Agata Walencik-Łata ◽  
Jari Joutsenvaara ◽  
...  

<p>The BSUIN (Baltic Sea Underground Innovation Network) aims to enhance the accessibility of the underground laboratories in the Baltic Sea region for innovation, business and science. One of the BSUIN project activities is characterization of natural background radiation (NBR) in underground facilities. In this talk results from NBR measurements performed in Callio Lab, Pyhäsalmi, Finland, at the depth of 4100 m w.e. will be presented. The in-situ gamma spectra were collected with the use of  HPGe semiconductor spectrometer, whereas the  concentration of radon were measured with RAD7 electronic detector. In addition, the water and rock samples were taken for laboratory analysis in Institute of Physics, University of Silesia, Poland. The concentration radioisotopes in water samples were performed by using a liquid scintillation α/β counter (LSC) and α-particle spectrometry, while the concentration of radioisotopes in rock samples were performed by using laboratory gamma ray spectrometry and also α-particle spectrometry.</p>


PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253166
Author(s):  
Halina Kiryluk ◽  
Ewa Glińska ◽  
Urszula Ryciuk ◽  
Kati Vierikko ◽  
Ewa Rollnik-Sadowska

Stakeholder participation is particularly important when dealing with mobility problems in touristic remote areas, in which there is a need to find sustainable solutions to increase transport accessibility. However, the literature lacks research linking the issues of establishing stakeholder groups with the most desirable level of involvement and methods ensuring involvement on the indicated level. The aim of the paper is to fill this gap on example of project dedicated to six Baltic Sea Regions. In the first stage key stakeholder groups were identified, then different methods and tools were proposed depending on levels of engagement of given group of stakeholders on solving the problems of local mobility. Two research methods were implemented–the case study and the content analysis of documents. The results of the research point to the existence of five key groups of stakeholders interested in solving transport problems of touristic remote areas: authorities, business and service operators, residents, visitors and others (like experts and NGOs). Among the five–authorities and business representatives–should be to a higher degree engaged. However, the main conclusion is that engagement local government units, when developing their own, long-term strategies for social participation, should adapt the selection of participation methods and techniques to a specific target group and the desired level of their involvement so as to include stakeholders in the co-decision processes as effectively as possible and achieve effective regional co-management.


2020 ◽  
Vol 17 (9) ◽  
pp. 2579-2591
Author(s):  
Jérôme Kaiser ◽  
Norbert Wasmund ◽  
Mati Kahru ◽  
Anna K. Wittenborn ◽  
Regina Hansen ◽  
...  

Abstract. Summer cyanobacterial blooms represent a threat to the Baltic Sea ecosystem, causing deoxygenation of the bottom water and the spread of the so-called dead zones. The history of the Baltic Sea cyanobacterial blooms is known from in situ and satellite observations since the early 1980s but is still not well understood. By comparing both weekly resolved sediment trap material and a well-dated sediment core from the eastern Gotland Basin with monitoring and satellite cyanobacterial data of the last ca. 35 years, it is shown here that 6- and 7-methylheptadecane lipids (expressed as 6+7Me-C17 : 0) may be potentially considered semiquantitative biomarkers for diazotrophic cyanobacteria, and more specifically for Nodularia spumigena. Using this organic proxy, it was thus possible to reconstruct the history of cyanobacterial blooms beyond the observational period with a resolution of 2–4 years since 1860. Cyanobacteria were constantly present but in relatively low abundance until 1920, when they started to alternate between periods with high and low abundance. Interestingly, there seems to be no significant increase in cyanobacterial abundance in the 1950s, when eutrophication and deoxygenation of the Baltic Sea increased considerably. While the early increase in cyanobacteria may be related to a small increase in phosphorus loading, decadal to multi-decadal fluctuations are likely related to variability in the Baltic Sea surface temperature and, ultimately, to the Atlantic Multi-decadal Oscillation. A 7000-year 6+7Me-C17 : 0 record from the Bothnian Sea also suggests a relationship with the mean summer temperature in the Baltic Sea region but at a multi-centennial to multi-millennial timescale. The intensity of the cyanobacterial blooms in the Baltic Sea is thus likely mainly related to natural processes such as temperature variability, at least at a multi-decadal to multi-millennial timescale.


2021 ◽  
Vol 19 (3) ◽  
pp. 33-56
Author(s):  
Alexander Sergunin

This study examines Russia’s policies towards and within the Councilof the Baltic Sea States in the aftermath of the Ukrainian and other internationalcrises. More specifically, this paper analyses Russia’s interest in andexpectations from the CBSS, as well as Moscow’s institutional behaviour in theCouncil. The CBSS is viewed by Russia as both a centrepiece and cornerstoneof the regional governance system. Moscow also sees the CBSS as an importanttool for overcoming the politico-diplomatic isolation where Russia founditself with the start of the Ukrainian crisis. With the help of the CBSS, it retainsits ability to influence socioeconomic, political, environmental, and humanitariandevelopments in the Baltic Sea region. Russia supported the Council’sthree long-term priority areas: a regional identity, a sustainable and prosperousregion, and a safe and secure region. Russia favoured further the Council’sinstitutionalization and strengthening of its role in the regional governancesystem. Despite the fact that Russia’s relations with other CBSS member-statesremain tense and that Moscow does not always manage to use the Councilto promote its interests in the region, the CBSS is still seen by Russia as animportant platform for regional cooperation.


2012 ◽  
Vol 8 (5) ◽  
pp. 1419-1433 ◽  
Author(s):  
S. Schimanke ◽  
H. E. M. Meier ◽  
E. Kjellström ◽  
G. Strandberg ◽  
R. Hordoir

Abstract. Variability and long-term climate change in the Baltic Sea region is investigated for the pre-industrial period of the last millennium. For the first time dynamical downscaling covering the complete millennium is conducted with a regional climate model in this area. As a result of changing external forcing conditions, the model simulation shows warm conditions in the first centuries followed by a gradual cooling until ca. 1700 before temperature increases in the last centuries. This long-term evolution, with a Medieval Climate Anomaly (MCA) and a Little Ice Age (LIA), is in broad agreement with proxy-based reconstructions. However, the timing of warm and cold events is not captured at all times. We show that the regional response to the global climate anomalies is to a strong degree modified by the large-scale circulation in the model. In particular, we find that a positive phase of the North Atlantic Oscillation (NAO) simulated during MCA contributes to enhancing winter temperatures and precipitation in the region while a negative NAO index in the LIA reduces them. In a second step, the regional ocean model (RCO-SCOBI) is used to investigate the impact of atmospheric changes onto the Baltic Sea for two 100 yr time slices representing the MCA and the LIA. Besides the warming of the Baltic Sea, the water becomes fresher at all levels during the MCA. This is induced by increased runoff and stronger westerly winds. Moreover, the oxygen concentrations in the deep layers are slightly reduced during the MCA. Additional sensitivity studies are conducted to investigate the impact of even higher temperatures and increased nutrient loads. The presented experiments suggest that changing nutrient loads may be more important determining oxygen depletion than changes in temperature or dynamic feedbacks.


Author(s):  
Max Hogeforster ◽  
Christian Wildt

The economy of the Baltic Sea Region is characterised by small and medium-sized enterprises. One of the main limitations to growth continues to be the lack of qualified personnel. Dual training as a form of work-based learning can promote the employability of young people in the long term and attract additional workforce. Based on a review of recent literature the status of VET and dual training in the selected countries of Poland, Latvia, Lithuania and Russia are described. Complementary the first results of a recent survey of companies, schools and administrations is presented, that confirms that in most BSR countries companies are not engaged in dual education. The evaluation of the literature clearly shows that a lot has been done to encourage work-based learning in the Baltic Sea Region, but the survey indicates, that the legal changes and possibilities have yet not fully arrived at the companies that could provide train-ing spots.


2020 ◽  
Author(s):  
Katarzyna Szkliniarz ◽  
Kinga Polaczek-Grelik ◽  
Agata Walencik-Łata ◽  
Jan Kisiel ◽  
Toni Mueller ◽  
...  

<p>The Reiche Zeche mine is one, out of 6 Underground Laboratories (ULs) participating in the BSUIN (Baltic Sea Underground Innovation Network) project. The main goal of BSUIN is to improve the utilisation of Underground laboratories operating in the Baltic Sea Region by creating an umbrella organisation, an association, to represent the underground locations. To improve the utilisation the Uls, the sites have been characterized to understand the possibilities of the sites. Of of the studied characteristics is natural background radiation. The Reiche Zeche mine is located at a depth of 150 m (410 m w.e.) in the eastern part of the Erzgebirge Mountains, Germany. The measurements of natural background radiation (NBR) were performed: (1) in-situ by using portable HPGe semiconductor spectrometer and RAD7 electronic radon detector, and (2) in the laboratory, where the concentration of radioisotopes in water and rock samples was determined. The laboratory measurements were done in the Institute of Physics, University of Silesia (Poland) by using a liquid scintillation α/β counter (LSC), gamma-ray spectrometry and α-particle spectrometry. The obtained results of natural radioactivity in Reiche Zeche (BSUIN UL) will be presented.</p>


2012 ◽  
Vol 8 (2) ◽  
pp. 1369-1407 ◽  
Author(s):  
S. Schimanke ◽  
H. E. M. Meier ◽  
E. Kjellström ◽  
G. Strandberg ◽  
R. Hordoir

Abstract. Variability and long-term climate change in the Baltic Sea region is investigated for the pre-industrial period of the last millennium. For the first time dynamical downscaling covering the complete millennium is conducted with a regional climate model in this area. As a result of changing external forcing conditions the model simulation shows warm conditions in the first centuries followed by a gradual cooling until c. 1700 before temperature increases in the last centuries. This long-term evolution, with a Medieval Climate Anomaly (MCA) and a Little Ice Age (LIA), is in broad agreement with proxy-based reconstructions. However, the timing of warm and cold events is not captured at all times. We show that the regional response to the global climate anomalies is to a strong degree modified by the large-scale circulation in the model. In particular, we find that a positive NAO-phase simulated during MCA contributes to enhancing winter temperatures and precipitation in the region while a negative NAO-anomaly in the LIA reduces them. In a second step, the regional ocean model RCO is used to investigate the impact of atmospheric changes onto the Baltic Sea for two 100 yr time slices representing the MCA and the LIA. Besides the warming of the Baltic Sea the water becomes fresher at all levels during the MCA. This is induced by increased runoff and stronger westerly winds. Moreover, the oxygen concentrations in the deep layers are slightly reduced during the MCA. Additional sensitivity studies are conducted to investigate the impact of even higher temperatures and increased nutrient loads. The presented experiments suggest that changing nutrient loads may be more important determining oxygen depletion than changes in temperature or dynamic feedbacks.


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