With Ellenberg indicator values towards the north: Does the indicative power decrease with distance from Central Europe?

2019 ◽  
Vol 46 (5) ◽  
pp. 1041-1053 ◽  
Author(s):  
Per‐Ola Hedwall ◽  
Jörg Brunet ◽  
Martin Diekmann
Keyword(s):  
Central Europe ◽  
Ellenberg Indicator Values ◽  
Indicator Values ◽  
The North

scholarly journals Root anatomy predicts ecological optima in Carex (Cyperaceae) in terms of Ellenberg indicator values

2021 ◽  
Vol 129 ◽  
pp. 107979
Author(s):  
Matthias H. Hoffmann ◽  
Sebastian Gebauer ◽  
Raoul Lühmann
Keyword(s):  
Root Anatomy ◽  
Ellenberg Indicator Values ◽  
Indicator Values

scholarly journals Past megadroughts in central Europe were longer, more severe and less warm than modern droughts

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
M. Ionita ◽  
M. Dima ◽  
V. Nagavciuc ◽  
P. Scholz ◽  
G. Lohmann
Keyword(s):  
Central Europe ◽  
North Atlantic Ocean ◽  
Explosive Volcanism ◽  
American Southwest ◽  
The North ◽  
European Climate ◽  
Blocking Activity ◽  
Meteorological Observations ◽  
Dalton Minimum

AbstractMegadroughts are notable manifestations of the American Southwest, but not so much of the European climate. By using long-term hydrological and meteorological observations, as well as paleoclimate reconstructions, here we show that central Europe has experienced much longer and severe droughts during the Spörer Minimum (~AD 1400–1480) and Dalton Minimum (~AD 1770–1840), than the ones observed during the 21st century. These two megadroughts appear to be linked with a cold state of the North Atlantic Ocean and enhanced winter atmospheric blocking activity over the British Isles and western part of Europe, concurrent with reduced solar forcing and explosive volcanism. Moreover, we show that the recent drought events (e.g., 2003, 2015, and 2018), are within the range of natural variability and they are not unprecedented over the last millennium.

Confirmation of the first Neolithic rondel-type enclosure in Poland

Antiquity ◽  
2012 ◽  
Vol 86 (334) ◽  
pp. 1084-1096 ◽  
Author(s):  
Zbigniew Kobyliński ◽  
Otto Braasch ◽  
Tomasz Herbich ◽  
Krzysztof Misiewicz ◽  
Louis Daniel Nebelsick ◽  
...  
Keyword(s):  
Central Europe ◽  
Aerial Photography ◽  
Early Neolithic ◽  
North East ◽  
The North ◽  
Danube Region

The early Neolithic rondel is a large curvilinear ditched and palisaded enclosure found in increasing numbers in Central Europe. It has close links with the tells of the Danube region, themselves highly suggestive instruments of the earliest Neolithic. Here the authors extend the distribution of rondels further to the north-east, with the discovery and verification of the first example in Poland. As they point out, it is aerial photography that made this advance possible and we can expect many more discoveries, given appropriate investment in the art.

The Glueckstadt Graben, a sedimentary record between the North and Baltic Sea in north Central Europe

2005 ◽  
Vol 397 (1-2) ◽  
pp. 113-126 ◽  
Author(s):  
Yuriy Maystrenko ◽  
Ulf Bayer ◽  
Magdalena Scheck-Wenderoth
Keyword(s):  
Baltic Sea ◽  
Central Europe ◽  
Sedimentary Record ◽  
North Central ◽  
The North ◽  
North Central Europe

scholarly journals Extreme levels of Canadian wildfire smoke in the stratosphere over central Europe on 21–22 August 2017

2018 ◽  
Vol 18 (16) ◽  
pp. 11831-11845 ◽  
Author(s):  
Albert Ansmann ◽  
Holger Baars ◽  
Alexandra Chudnovsky ◽  
Ina Mattis ◽  
Igor Veselovskii ◽  
...  
Keyword(s):  
Central Europe ◽  
Volcanic Eruptions ◽  
Light Extinction ◽  
Ozone Monitoring Instrument ◽  
Wildfire Smoke ◽  
The North ◽  
Radiative Power ◽  
Peak Mass ◽  
Moderate Resolution ◽  
Moderate Resolution Imaging Spectroradiometer

Abstract. Light extinction coefficients of 500 Mm−1, about 20 times higher than after the Pinatubo volcanic eruptions in 1991, were observed by European Aerosol Research Lidar Network (EARLINET) lidars in the stratosphere over central Europe on 21–22 August 2017. Pronounced smoke layers with a 1–2 km vertical extent were found 2–5 km above the local tropopause. Optically dense layers of Canadian wildfire smoke reached central Europe 10 days after their injection into the upper troposphere and lower stratosphere which was caused by rather strong pyrocumulonimbus activity over western Canada. The smoke-related aerosol optical thickness (AOT) identified by lidar was close to 1.0 at 532 nm over Leipzig during the noon hours on 22 August 2017. Smoke particles were found throughout the free troposphere (AOT of 0.3) and in the pronounced 2 km thick stratospheric smoke layer at an altitude of 14–16 km (AOT of 0.6). The lidar observations indicated peak mass concentrations of 70–100 µg m−3 in the stratosphere. In addition to the lidar profiles, we analyzed Moderate Resolution Imaging Spectroradiometer (MODIS) fire radiative power (FRP) over Canada, and the distribution of MODIS AOT and Ozone Monitoring Instrument (OMI) aerosol index across the North Atlantic. These instruments showed a similar pattern and a clear link between the western Canadian fires and the aerosol load over Europe. In this paper, we also present Aerosol Robotic Network (AERONET) sun photometer observations, compare photometer and lidar-derived AOT, and discuss an obvious bias (the smoke AOT is too low) in the photometer observations. Finally, we compare the strength of this record-breaking smoke event (in terms of the particle extinction coefficient and AOT) with major and moderate volcanic events observed over the northern midlatitudes.

scholarly journals Central European Border Settlements and Interwar Ireland: a Transnational Study of the North- Eastern Boundary Bureau and the Boundary Commission

2017 ◽  
Vol 57 (3) ◽  
Author(s):  
Lili Zách
Keyword(s):  
World War I ◽  
Central Europe ◽  
East Central Europe ◽  
Central European ◽  
The North ◽  
Eastern Boundary ◽  
North Eastern ◽  
Post War ◽  
Transnational Study ◽  
Insight Into

ABSTRACTIn the aftermath of the Great War, the birth of new independent small states in East-Central Europe was closely followed in Irish nationalist circles due to the possibility of Partition in Ireland. Newspaper editorials, journal articles and diplomatic accounts illustrate that post-war Ireland had an open attitude toward the settlement of borders on the Continent as the dissolution of the Austro-Hungarian Empire was similarly controversial. This paper aims to investigate how contemporary Irish commentators perceived the question of boundary settlements in Central Europe in order to provide an insight into the transformation of political space in both Ireland and Central Europe. After providing a brief background to the Irish boundary question, this paper touches upon the most important points in historiography with regard to border settlements in the post-World War I era.. It also discusses Irish Partition history in detail, concentrating on the North-Eastern Boundary Bureau (NEBB) and the Boundary Commission, and the importance of Central European precedents in their work. Moreover, this paper also proposes to provide an insight into the Irish interest in the minority problem in European borderland regions after 1925 in order to illustrate the outward-looking attitude to Irish nationalists, even in relation to borders and minorities.

scholarly journals Tendency and distribution indices for ordinal variables applied to Ellenberg indicator values

2013 ◽  
Vol 70 (2) ◽  
pp. 248-256 ◽  
Author(s):  
Miguel Alvarez ◽  
Bodo Maria Mõseler ◽  
Cristina San Martín
Keyword(s):  
Ellenberg Indicator Values ◽  
Indicator Values ◽  
Ordinal Variables

scholarly journals DIVERSIFICATION OF GAS SUPPLIES AS A CORNERSTONE OF GAS SECURITY IN THE FRAMEWORK OF THE THREE SEAS INITIATIVE

2021 ◽  
Vol 2 (2) ◽  
pp. 1-8
Author(s):  
Danylo Stonis
Keyword(s):  
Natural Gas ◽  
Eastern Europe ◽  
Central Europe ◽  
Security Policy ◽  
Energy Transport ◽  
Transportation Infrastructure ◽  
The European Union ◽  
The North ◽  
Gas Market ◽  
South Axis

The article overviews approaches to the diversification of gas supplies in the framework of the Three Seas Initiative. The modern geopolitical situation in Eastern and Central Europe is characterized by transformation processes in the energy sector. Due to the implementation of decarbonization policy in the European Union and subsequent shift from coal as a main energy source, a need in alternative fuel sources, such as natural gas, emerges. Therefore, a significant increase in natural gas consumption is expected, which raises a number of issues, such as dependence on a single gas supplier and orientation of the EU’s gas transmission system in East-West direction only. This issue is crucial for Eastern and Central European states, due to the underdeveloped gas infrastructure in the region and heavy dependence on a single gas supplier, such as Russia or Turkey. Hence, the Three Seas Initiative is considered as a powerful tool, designed to develop energy, transport and digital infrastructure of the region in the North-South direction, where one of the most potentially promising projects within the framework of the Three Seas Initiative is represented by the development of gas infrastructure, aimed at solving the diversification of supplies in the gas market in Eastern and Central Europe. The implementation of developed gas infrastructure and diversification of gas supplies consists of several regional projects that are relevant for those countries in the region in which they are implemented in particular and for all member states of the Three Seas Initiative in general. The main purpose of the implementation of these projects is the creation of a unified natural gas transportation infrastructure in Eastern Europe along the North-South axis. The result of such a grand reorganization in the field of gas supplies to Europe will be an increase in the number of independent suppliers in the European gas market and a decrease in the dependence of the EU countries on gas supplies from Russia. In the article, the author traced in detail the tendency of the formation of energy infrastructure along the North-South axis with focus on the projects that are being implemented by each of the participating countries within the framework of the Three Seas Initiative. This approach allows to assess the scale and integrity of the gas transportation infrastructure, that is being created in the Eastern Europe region and its contribution to the common European energy security policy.

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