scholarly journals Formation and transport of photooxidants over Europe during the July 2006 heat wave – observations and GEM-AQ model simulations

2008 ◽  
Vol 8 (3) ◽  
pp. 721-736 ◽  
Author(s):  
J. Struzewska ◽  
J. W. Kaminski
Keyword(s):  
Eastern Europe ◽  
Central Europe ◽  
Heat Wave ◽  
Model Performance ◽  
Quality Parameters ◽  
Tropospheric Chemistry ◽  
Pressure System ◽  
European Continent ◽  
Air Masses ◽  
Exposure Indicators

Abstract. The European heat wave of July 2006 was caused by advection of very hot and dry air from North Africa. Air masses were transported on the western edge of the high pressure system, centred over Eastern Europe, resulting in exceptionally high air temperatures over large areas of the continent. In the first two weeks of July 2006 a severe heat wave affected Central and North-Eastern Europe. We present a synoptic analysis of the July 2006 European heat wave, resulting formation and transport of photooxidants over Europe as simulated by the on-line tropospheric chemistry model GEM-AQ. The model was executed on a global variable grid with ~15 km resolution over the entire European continent. Modelling results have been compared with surface observations and vertical soundings of meteorological and air quality parameters. We find that the calculated error measures, as well as analysis of time series and trends for selected quantities, indicate good model performance over the simulation period. The spatial pattern of two exposure indicators – SOMO35 and AOT40 – showed similarities with the high temperatures distribution. The zone of highest exposure was located over Central Europe along the advection path of the hot African air mass. The exposure to high ozone concentrations in higher latitudes was reduced by the dilution and aging of polluted air masses advected from over Central Europe.

scholarly journals Formation and transport of photooxidants over Europe during the July 2006 heat wave – observations and GEM-AQ model simulations

2007 ◽  
Vol 7 (4) ◽  
pp. 10467-10514 ◽  
Author(s):  
J. Struzewska ◽  
J. W. Kaminski
Keyword(s):  
Eastern Europe ◽  
Central Europe ◽  
Heat Wave ◽  
Model Performance ◽  
Quality Parameters ◽  
Tropospheric Chemistry ◽  
Pressure System ◽  
European Continent ◽  
Air Masses ◽  
Exposure Indicators

Abstract. The European heat wave of July 2006 was caused by advection of very hot and dry air from North Africa. Air masses were transported on the western edge of the high pressure system, centred over Eastern Europe, resulting in exceptionally high air temperatures over large areas of the continent. In the first two weeks of July 2006 a severe heat wave affected Central and North-Eastern Europe. We present a synoptic analysis of the July 2006 European heat wave, resulting formation and transport of photooxidants over Europe as simulated by the on-line tropospheric chemistry model GEM-AQ. The model was executed on a global variable grid with ~15 km resolution over the entire European continent. Modelling results have been compared with surface observations and vertical soundings of meteorological and air quality parameters. We find that the calculated error measures, as well as analysis of time series and trends for selected quantities, indicate good model performance over the simulation period. The spatial pattern of two exposure indicators – SOMO35 and AOT40 – showed similarities with the high temperatures distribution. The zone of highest exposure was located over Central Europe along the advection path of the hot African air mass. The exposure to high ozone concentrations in higher latitudes was reduced by the dilution and aging of polluted air masses advected from over Central Europe.

scholarly journals NOCE MROŹNE W POZNANIU I ICH CYRKULACYJNE UWARUNKOWANIA

2018 ◽  
pp. 225-238
Author(s):  
ARKADIUSZ M. TOMCZYK
Keyword(s):  
Water Management ◽  
High Pressure ◽  
Central Europe ◽  
Air Temperature ◽  
National Research Institute ◽  
Pressure System ◽  
Air Masses ◽  
Circulation Types ◽  
Pressure Ridge ◽  
Minimum Air Temperature

The main purpose of this article was to determine the pressure situations and circulation types causing the occurrence of frosty nights in Poznań in the years 1966/67–2015/16. A night was assumed to be a frosty night with a minimum temperature below –10°C. The article uses the daily values of the minimum air temperature for the period of 1966–2016 for the station in Poznań. The data was provided by the Institute of Meteorology and Water Management – National Research Institute. In the analyzed years, 10 frosty nights were recorded on average every season. Conducted studies showed a decrease in their number, although these changes were not statistically significant. The average occurrence of frosty nights was associated with the presence of a high-pressure system over Central Europe, which developed within a high-pressure ridge extending over the majority of the continent. Such a pressure situation led to the advection of continental air masses from the eastern sector.

scholarly journals Atmospheric circulation during heat waves in Eastern Europe

Geografie ◽  
2017 ◽  
Vol 122 (2) ◽  
pp. 121-146 ◽  
Author(s):  
Arkadiusz M. Tomczyk
Keyword(s):  
High Pressure ◽  
Eastern Europe ◽  
Sea Level ◽  
Heat Wave ◽  
Geopotential Height ◽  
Heat Waves ◽  
Maximum Temperature ◽  
Pressure System ◽  
Sea Level Pressure ◽  
The One

This article aims to describe heat waves in Eastern Europe and to determine the synoptic situations which cause them. In this article, a hot day is defined as the one with a maximum temperature above the 95th percentile of all the values in the analysed period, and a heat wave is considered as a sequence of at least 5 such days. In the analysed period and within the investigated area, from 24 (Kaliningrad) to 55 (Kharkiv) heat waves were observed. The longest heat wave was recorded in Moscow in 2010, lasting as many as 45 days. In the analysed period, an increase in frequency and length of heat waves was observed within the analysed area. The occurrence of heat waves was connected with a high pressure system located over the eastern part of the continent, during which positive anomalies of sea level pressure and the 500 hPa geopotential height as well as positive T850 anomalies were recorded.

From Black Death to Black Hole

2018 ◽  
Author(s):  
Marcin Piatkowski
Keyword(s):  
Economic Development ◽  
Black Hole ◽  
Sixteenth Century ◽  
Eastern Europe ◽  
Rule Of Law ◽  
Western Europe ◽  
Black Death ◽  
European Continent ◽  
The Past

In this chapter I explain why Poland and most countries in Eastern Europe have always lagged behind Western Europe in economic development. I discuss why in the past the European continent split into two parts and how Western and Eastern Europe followed starkly different developmental paths. I then demonstrate how Polish oligarchic elites built extractive institutions and how they adopted ideologies, cultures, and values, which undermined development from the late sixteenth century to 1939. I also describe how the elites created a libertarian country without taxes, state capacity, and rule of law, and how this ‘golden freedom’ led to Poland’s collapse and disappearance from the map of Europe in 1795. I argue that Polish extractive society was so well established that it could not reform itself from the inside. It was like a black hole, where the force of gravity is so strong that the light could not come out.

scholarly journals Improved tropospheric and stratospheric sulfur cycle in the aerosol–chemistry–climate model SOCOL-AERv2

2019 ◽  
Vol 12 (9) ◽  
pp. 3863-3887 ◽  
Author(s):  
Aryeh Feinberg ◽  
Timofei Sukhodolov ◽  
Bei-Ping Luo ◽  
Eugene Rozanov ◽  
Lenny H. E. Winkel ◽  
...  
Keyword(s):  
Climate Model ◽  
Model Performance ◽  
Stratospheric Aerosol ◽  
Sulfur Cycle ◽  
Sulfate Aerosol ◽  
Tropospheric Chemistry ◽  
Sulfur Deposition ◽  
Aerosol Chemistry ◽  
Deposition Fluxes ◽  
Aerosol Model

Abstract. SOCOL-AERv1 was developed as an aerosol–chemistry–climate model to study the stratospheric sulfur cycle and its influence on climate and the ozone layer. It includes a sectional aerosol model that tracks the sulfate particle size distribution in 40 size bins, between 0.39 nm and 3.2 µm. Sheng et al. (2015) showed that SOCOL-AERv1 successfully matched observable quantities related to stratospheric aerosol. In the meantime, SOCOL-AER has undergone significant improvements and more observational datasets have become available. In producing SOCOL-AERv2 we have implemented several updates to the model: adding interactive deposition schemes, improving the sulfate mass and particle number conservation, and expanding the tropospheric chemistry scheme. We compare the two versions of the model with background stratospheric sulfate aerosol observations, stratospheric aerosol evolution after Pinatubo, and ground-based sulfur deposition networks. SOCOL-AERv2 shows similar levels of agreement as SOCOL-AERv1 with satellite-measured extinctions and in situ optical particle counter (OPC) balloon flights. The volcanically quiescent total stratospheric aerosol burden simulated in SOCOL-AERv2 has increased from 109 Gg of sulfur (S) to 160 Gg S, matching the newly available satellite estimate of 165 Gg S. However, SOCOL-AERv2 simulates too high cross-tropopause transport of tropospheric SO2 and/or sulfate aerosol, leading to an overestimation of lower stratospheric aerosol. Due to the current lack of upper tropospheric SO2 measurements and the neglect of organic aerosol in the model, the lower stratospheric bias of SOCOL-AERv2 was not further improved. Model performance under volcanically perturbed conditions has also undergone some changes, resulting in a slightly shorter volcanic aerosol lifetime after the Pinatubo eruption. With the improved deposition schemes of SOCOL-AERv2, simulated sulfur wet deposition fluxes are within a factor of 2 of measured deposition fluxes at 78 % of the measurement stations globally, an agreement which is on par with previous model intercomparison studies. Because of these improvements, SOCOL-AERv2 will be better suited to studying changes in atmospheric sulfur deposition due to variations in climate and emissions.

Economics, Society, and Sociopolitical Thought in Hungary during the Age of Capitalism

1975 ◽  
Vol 11 ◽  
pp. 113-135 ◽  
Author(s):  
Péter Hanák
Keyword(s):  
Nineteenth Century ◽  
Eastern Europe ◽  
Division Of Labor ◽  
Central Europe ◽  
Industrial Revolution ◽  
Habsburg Monarchy ◽  
Hungarian Revolution ◽  
Significant Difference ◽  
Revolution Of 1848

By abolishing feudalism, the Hungarian Revolution of 1848 helped to create the economic preconditions and the legal-political framework necessary for capitalistic development. This made it possible for Hungary to adapt her economy to the market possibilities offered by the Industrial Revolution in western and central Europe and to share in the agrarian boom of the period between 1850 and 1873. The previously existing division of labor between western and eastern Europe and between the western and eastern parts of the Habsburg monarchy continued on a scale larger than before, with the significant difference, however, that this practice now speeded up rather than retarded the development of preconditions for capitalism. During the first half of the nineteenth century the preconditions for capitalism had come into existence in the Cisleithanian provinces at considerable expense to the Hungarian economy.

scholarly journals Ceramic Traditions in the Forest-Steppe Zone of Eastern Europe

2021 ◽  
Vol 7 (1) ◽  
pp. 705-717
Author(s):  
Konstantin Mikhailovich Andreev ◽  
Alexander Alekseevich Vybornov
Keyword(s):  
Eastern Europe ◽  
Central Europe ◽  
Caspian Sea ◽  
Steppe Zone ◽  
Aral Sea ◽  
Cultural Tradition ◽  
Forest Steppe ◽  
Pottery Production ◽  
The Baltic ◽  
Early Pottery

Abstract Early pottery on the territory from the Eastern Caspian Sea and Aral Sea to Denmark reveals a certain typological similarity. It is represented by egg-shaped vessels with an S-shaped profile of the upper part and a pointed bottom. The vessels are not ornamented or decorated with incised lines, organized often in a net. This type of pottery was spread within hunter-gatherer ancient groups. The forest-steppe Volga region is one of the earliest centers of pottery production in Eastern Europe. The first pottery is recorded here in the last quarter of the seventh millennium BC. Its appearance is associated with the bearers of the Elshanskaya cultural tradition. The most likely source of its formation is the territory of Central Asia. Later, due to aridization, these ceramic traditions distributed further westward to the forest-steppe Don region. During the first half of the sixth millennium BC, groups associated with the bearers of the Elshanskaya cultural tradition moved westward. Significant similarities with the ceramic complexes of the Elshanskaya culture are found in materials from a number of early pottery cultures of Central Europe and the Baltic (Narva, Neman, and Ertebølle).

Contacts between the Late Roman Empire and North-Central Europe

1996 ◽  
Vol 76 ◽  
pp. 31-50 ◽  
Author(s):  
Aleksander Bursche
Keyword(s):  
Roman Empire ◽  
Central Europe ◽  
The Baltic Sea ◽  
European Continent ◽  
North Central ◽  
The Past ◽  
Vistula River ◽  
English Speaking ◽  
English Speaking World ◽  
The Baltic

The concept of Central Europe is understood here to cover the geographical centre of the European continent (i.e. the territory between the Elbe, Bug and Neman rivers, that is, eastern Germany, Poland, Bohemia, Slovakia and Lithuania), formerly treated in much of the English-speaking world as ‘Eastern Europe’. In the past six years, however, this area has been moving closer to the West. This paper shall concentrate on the region north of the Carpathian mountains, particularly the Vistula river-basin and Scandinavia (without Norway), in other words the territory round the Baltic Sea.

scholarly journals Revised distribution and phytosociological data of Orobanche coerulescens Stephan in Willd. (Orobanchaceae): Poland in relation to Central Europe

2012 ◽  
Vol 26 (1) ◽  
pp. 61-72 ◽  
Author(s):  
Renata Piwowarczyk
Keyword(s):  
Eastern Europe ◽  
Central Europe ◽  
Plant Communities ◽  
Field Research ◽  
Range Limits ◽  
Migration Routes ◽  
Original Field ◽  
Critical Revision ◽  
And Migration ◽  
North Western

Abstract Orobanche coerulescens has a Eurasian distribution. The species is classified as extinct at most of its localities at the western limit of its range. Its populations are very scarce and critically endangered in Central Europe. This work presents the current distribution of O.coerulescens in Poland, based on a critical revision of herbarium and literature data as well as results of original field research, and reviews its distribution in Central Europe (partly in Eastern Europe). Habitats, plant communities, and migration routes of O.coerulescens in Central Europe are discussed. The species was initially known in Poland from now historical localities in Pomerania and the valley of the lower Vistula. In 2000-2011 it was recorded at 9 localities in Podlasie, the Małopolska Upland (Wyżyna Małopolska), and the Łódź Hills (Wzniesienia Łódzkie). Its abundance at the localities ranged from a few to over 1000 shoots. These are the largest populations of O.coerulescens at its western and north-western range limits.

Customary Law and the Influence of the Ius Commune in High and Late Medieval East Central Europe

2018 ◽  
Author(s):  
Mia Korpiola
Keyword(s):  
Eastern Europe ◽  
Middle Ages ◽  
Central Europe ◽  
Customary Law ◽  
East Central Europe ◽  
East Central ◽  
South Eastern ◽  
Ius Commune ◽  
Italian Law ◽  
South Eastern Europe

Secular law remained largely customary and uncodified in east central Europe. While much of south-eastern Europe had remained Christian ever since Roman times, most of east central Europe was Christianized during the high Middle Ages. The Baltic region came later, Lithuania only being converted after 1387. South-eastern Europe was influenced first by Byzantine and then Italian law. In much of east central Europe secular law was based on Slavic customs, later influenced by canon law and German law. The Sachsenspiegel, Schwabenspiegel, and German town law spread to the whole region alongside the German colonization of east central Europe. Towns functioned as conduits of German and learned law. Certain territorial rulers actively promoted Roman law and (partial) codification, while the local nobility preferred uncodified customary law. In addition to foreign university studies, the fourteenth-century universities of Prague and Krakow, cathedral chapters, and notaries helped disseminate the ius commune into the region.

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