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Wyświetlanie 1-15 z 45
Tytuł:
The outwash plain of the rospuda river valley –a record of depositional environments
Autorzy:
Pochocka-Szwarc, Katarzyna
Krzyszkowski, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2025811.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Rospuda River
subglacial channel
valley outwash plain
lithofacies analysis
ice-sheet limits
Nauki o Ziemi
Opis:
The Rospuda subglacial chan nel hosts not only deep rib bon lakes and the Rospuda River it self, but also an outwash plain. The pa per deals with a lithofacies anal y sis of de pos its from ex po sures within the Rospuda outwash plain. With the sup port of geomorphological and geo log i cal anal y ses, it has been found that the outwash plain formed along the Rospuda subglacial chan nel that was be ing ex posed from un der the ice cover. The lithological re cord of the Rospuda outwash plain shows a dis tinct di vi sion into a prox i mal and a dis tal zone. The de pos its un der study re veal a re cord of a break in basial sed i men ta tion, when ice-wedge casts de vel oped un der con ditions of periglacial cli mate. The de vel op ment of the Rospuda outwash plain is linked with the ice-mar ginal zone of the Pom er a nian phase, sim i larly to the Olecko-Rajgród outwash plain that is lo cated to the west.
Źródło:
Studia Quaternaria; 2015, 32; 63-78
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Archeometria w naukach o Ziemi – wkład profesora dr hab. Janusza Skoczylasa. Recenzja
Archaeometry in Earth Sciences - Prof. dr hab. Janusz Skoczylasa contribution
Autorzy:
Probierz, K.
Jonczy, I.
Powiązania:
https://bibliotekanauki.pl/articles/166156.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Górnictwa
Tematy:
recenzja
nauki o Ziemi
archeometria
review
archeometry
earth sciences
Źródło:
Przegląd Górniczy; 2016, 72, 10; 78-79
0033-216X
Pojawia się w:
Przegląd Górniczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bogota – Urban Expansion Social Segregation and Land Degradation
Autorzy:
Czerny, Mirosława
Czerny, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2079195.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
Colombia’s capital city Bogota was founded in 1538 by Gonzalo Jiménez de Quesada, a Spanish Conquistador who came down from the north to reach the Sabana de Bogotá, i.e. the intermountain plateau (and “Savannah”) around Bogota. The whole region was already well-developed by then, and inhabited by the Muisca people. Their settlements were dispersed across the plateau, though only rarely did these encompass fl at areas suitable for crop-growing. Today’s Bogota is the largest metropolitan area in the country, with more than 8 million residents currently, and occupying a considerable part of the extensive high plateau. Processes which have resulted in Bogota’s present spatial form and its – in some ways – unique functional and spatial structure, are manifold, and highly complex. They include environmental, political, social and economic factors. Nevertheless, among all of these cause-and-effect processes, institutionalized segregation (called estratifi cación in Colombia) is the reason why rigid spatial structures are maintained, while the spontaneous and uncontrolled movement of groups of people within the city and from one social class to another is restricted.Colombia’s capital city Bogota was founded in 1538 by Gonzalo Jiménez de Quesada, a Spanish Conquistador who came down from the north to reach the Sabana de Bogotá, i.e. the intermountain plateau (and “Savannah”) around Bogota. The whole region was already well-developed by then, and inhabited by the Muisca people. Their settlements were dispersed across the plateau, though only rarely did these encompass fl at areas suitable for crop-growing. Today’s Bogota is the largest metropolitan area in the country, with more than 8 million residents currently, and occupying a considerable part of the extensive high plateau. Processes which have resulted in Bogota’s present spatial form and its – in some ways – unique functional and spatial structure, are manifold, and highly complex. They include environmental, political, social and economic factors. Nevertheless, among all of these cause-and-effect processes, institutionalized segregation (called estratifi cación in Colombia) is the reason why rigid spatial structures are maintained, while the spontaneous and uncontrolled movement of groups of people within the city and from one social class to another is restricted.
Źródło:
Papers on Global Change; 2016, 23; 127-149
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extreme Weather Events and their Consequences
Autorzy:
Kundzewicz, Zbigniew W.
Powiązania:
https://bibliotekanauki.pl/articles/2079198.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
The damage (in real terms after adjusting for infl ation) caused by extreme weather events globally has increased dramatically over the past few decades. This is a result of an increase in the amplitude and frequency of weather extremes, as well as of human factors causing a widespread increase in levels of exposure and vulnerability. There are a number of reasons to consider that, in many regions of the globe, weather extremes (e.g. heat waves, droughts, forest fi res, intense rainfall, fl oods and landslides) are becoming both yet more extreme and more frequent. Projections for the future based on climate and impact models point to a further strengthening of this trend. There has already been an increase in rainfall intensity in conditions of a warmer climate, and a continuation of this trend is expected, with adverse consequences for fl ood risk. However, the development of fl ood-prone areas and increase in damage potential are often the dominant factors underpinning growing fl ood damage and fl ood risk. In warmer climates, an increased risk of river and fl ash fl ooding caused by heavy rainfall, as well as an increasing risk of coastal fl ooding associated with sea level rise can be expected over large areas. By the same token, a reduction in the risk of snowmelt fl ooding events is projected in the warmer climate. Projections also indicate an increased risk of drought in many areas. The projections for climate change in Poland point to several risks associated with an increase in the frequency, intensity and severity of weather extremes (heat waves, intensive rainfall, fl ooding and landslides, coastal surges, drought during the growing season and winter, strong winds and pathogens associated with warming). Heat waves will become more frequent, more intense and more troublesome for the ageing population of Poland.
Źródło:
Papers on Global Change; 2016, 23; 59-69
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mapping of the north-eastern part of kozłowicka buried valley based on geoelectrical data
Autorzy:
Topolewska, Sylwia
Stępień, Marcin
Kowalczyk, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/2025652.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
buried valley
geoelectrical methods
electrical resistivity tomography
ERT
Nauki o Ziemi
Opis:
The pa per is aim ing to de ter mi nate the ex tent of the north east ern arm of Koz³owicka bur ied val ley on the grounds of own re search by means of elec tri cal re sis tiv ity to mog ra phy – ERT and avail able ar chi val re searches. On the Hy drogeo log i cal map of Po land, ¯yrardów sheet (Felter and Nowicki, 1998a, b) Koz³owicka bur ied val ley was dif fer en tiated as an in di vid ual hydrogeological unit. The re sults of the anal y sis show that the ex tent of the struc ture, de fined by its up per bound ary, dif fers sig nif i cantly from the one sug gested on the sheet of Hydrogeological map of Po land. Since there was no data avail able in the north east ern part of the dis cussed arm of Koz³owicka bur ied val ley, the north ern bound ary was de fined only based on avail able geoelectrical sound ing pro files (Czerwiñska, 1988; Topolewska, 2015). In or der to con firm sug gested so lu tion, geoelectrical re search by means of elec tri cal re sis tiv ity to mog ra phy (ERT) was con ducted. The mea sure ments were per formed along 3 pro files lo cated in the area of in ter est. The au thors would like to point out the need of the us age of ERT in map ping and study ing bur ied struc tures that might be ground wa ter res ervoirs. As a re sult, one ob tains quasi-con tin u ous im age of elec tri cal re sis tiv ity of the subsurface. Due to the con trast of elec tri cal prop er ties of sed i ments, it is pos si ble to de ter mine up per and bot tom sur faces of bur ied struc tures, formed within gla cial de pos its.
Źródło:
Studia Quaternaria; 2016, 33; 91-101
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of Greenhouse Gases in the Atmosphere – A Polish Perspective
Autorzy:
Różański, Kazimierz
Chmura, Łukasz
Gałkowski, Michał
Nęcki, Jarosław
Zimnoch, Mirosław
Bartyzel, Jakub
O’Doherty, Simon
Powiązania:
https://bibliotekanauki.pl/articles/2079199.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
An overview of systematic observations of the trace-gas composition of the atmosphere over southern Poland is presented, against the background of data available for other greenhouse gas (GHG) monitoring stations in Europe. The results of GHG monitoring for three major greenhouse gases (CO2, CH4, N2O) are discussed. Measurements were performed at two locations of contrasting characteristics, i.e. (i) the high-altitude mountain station of Kasprowy Wierch in the High Tatras, representing atmospheric conditions relatively free of local infl uences, and (ii) an urban station located in the Krakow agglomeration. The GHG data available for the Kasprowy Wierch station were compared with relevant data available for two marine reference stations (Mace Head, Ireland and Terceira Island, Azores), and two continental stations (Hohenpeissenberg, Germany and Pallas-Sammaltunturi, Finland). The growth rates for the CO2 mole fraction recorded at these fi ve stations reveal only small temporal changes that almost coincide, leading to a quasi-linear increase of the CO2 mixing ratio over the European continent over the past 20 years. While N2O observations also reveal a steady increase over this time period, the mole fraction accounted for by CH4 is increasing again, after a period of stagnation in the years 2001–2007. The impact of continental sources of CH4 and N2O is seen clearly in the Kasprowy Wierch records. The mean departure between the CH4 mixing ratios recorded at Kasprowy Wierch and at the marine reference stations in the period 1994–2014 is of 27.3 ppb, and stems from continental emissions of this gas originating mainly from anthropogenic activities (leaking natural-gas distribution networks, landfi lls and livestock). For N2O, a departure of 1 ppb was observed for the period 2009–2014. Comparison of quasi-continuous measurements of CO2, CH4 and N2O mixing ratios made in the urban atmosphere of Krakow and at the regional reference site Kasprowy Wierch (located approximately 100 km away), allows for a deeper insight into the mechanisms controlling daily variations in atmospheric mixing ratios of these gases at the two sites. The development of a nocturnal inversion layer in the atmosphere above the city leads to local enhancements of CO2, CH4 and N2O mole fractions in the Krakow atmosphere during the night hours, with these exceeding the baseline level signifi cantly.
Źródło:
Papers on Global Change; 2016, 23; 111-126
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural Resources and Human Impact
Autorzy:
Starkel, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/2079201.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
It is rotational movement of the Earth that decides on the climatic zonation of natural resources, as modifi ed by the positions of the continents and oceans and the irregular spread of fossil fuels. Intensive human activity poses threats to the development of natural geoecosystems. The last century also brought growing civilizational threats to the environment on the global, regional and local scales. The author characterise the prospects in regard to global changes, and discuss the solutions needing to be pursued if human geoecosystems are to be protected (through management and education).
Źródło:
Papers on Global Change; 2016, 23; 15-20
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New geological interpretation of multi-channel seismic profiles from the Pacific Margin of the Antarctic Peninsula
Autorzy:
Okoń, Jan
Giżejewski, Jerzy
Janik, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2046834.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
Bransfield Strait
Glacier valleys
marine seismic
South Shetland Trench
Subduction zone
Volcanic structure
Nauki o Ziemi
Źródło:
Polish Polar Research; 2016, 37, 2; 243-268
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poland and Global Threats
Autorzy:
Kleer, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2079202.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
This essay seeks to present the specifi cs of global threats, as well as the reasons for them being universal in nature, and for their persistence. A certain classifi cation of the threats is also engaged in. At the same time, an attempt is made to show the specifi c threats present – irrespective of their global counterparts – in different regions, and even in different states. The genesis and nature of the latter are demonstrated in a somewhat ad hoc manner by reference to the threats considered to face Poland. If the global threats are truly universal, and arise out of the changes taking place around the world in the last half-century (primarily around the twin phenomena of globalisation and the information revolution), a specifi c reverse kind of situation applies to decolonisation, plus the collapse of the communist system and the transformation into market economies that apply to formerly communist countries. Equally, some at least of the threats facing Poland may have even a longer history, given that they are very much infl uenced by past economic and political development, as well as the dominant cultural system.
Źródło:
Papers on Global Change; 2016, 23; 89-102
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary report on engineering properties and environmental resistance of ancient mud bricks from tell el-retaba archaeological site in the nile delta
Autorzy:
Welc, Fabian
Trzciński, Jerzy
Zaremba, Małgorzata
Rzepka, Sławomir
Szczepański, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2025359.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ancient Egypt
mud bricks
physical parameters
compressive strength
Nauki o Ziemi
Opis:
The archaeological site Tell el-Retaba in north-eastern Egypt, about 35 km to the west of Ismailia city, is located in the middle of Wadi Tumilat, a shallow valley running from the Nile Delta to the Bitter Lakes, along which flows the Suez Canal. In ancient times the valley was a route between Egypt and Syro-Palestine, strongly fortified in the New Kingdom times (16th–11th century BC). Mud bricks were analyzed from two parts of the Wall 1 (core of grey-brown bricks and inner extension of green bricks) in a fortress which existed during the Ramesses II times. Grain-size composition of the studied bricks was almost identical in both parts of the wall, suggesting the same source material for a production of brick. However, significant differences were observed in physical and mechanical properties (uni-axial compressive strength) in both types of bricks. Bricks from the core had lower bulk density, higher porosity and soak faster, whereas their resistance parameters were much lower than those of the bricks from the inner extension. The reason for such large differences in brick properties was a technology of their production, particularly proportion of components, water volume added during brick formation or density degree. Brick preparation and in consequence, physical-mechanical properties had direct influence on preservation of defensive structures during environmental changes related to changes of groundwater and surface water levels or of precipitation. Ancient Egyptians responsible for construction works in mud brick structures of the fortress must have had good knowledge and experience. This could be observed particularly for the heaviest and most important construction element that is the defensive wall, founded on well-densified deposits. It was also testified by higher resistance of green bricks from the inner extensions, which probably originated slightly later and were intended to reinforce a weaker core built of grey-brown bricks.
Źródło:
Studia Quaternaria; 2016, 33; 47-56
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedimentary environment of the early pleistocene gravels of the edfu formation from the saqqara archaeological site (Egypt) – preliminary results
Autorzy:
Czarniecka, Urszula
Wysocka, Anna
Welc, Fabian
Powiązania:
https://bibliotekanauki.pl/articles/2025313.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gravels
Edfu Pluvial
Pleistocene
Saqqara
Egipt
Egypt
Nauki o Ziemi
Opis:
A gravel horizon is preserved in several locations within the world-wide known archaeological site in Saqqara (northern Egypt). It is characterized by a variable thickness, composed of coarse, quartz, quartzitic and flint pebbles, and considered to correspond to gravels of the Edfu Formation, deposited in the Early Pleistocene by the early phase of the Nile development (Protonile Phase). This relatively short (ca. 200 ka) and at the same time very dynamic period of Protonile activity during the Edfu Pluvial is one of the most poorly recognized hydrological-climatic episodes of the Quaternary in north-eastern Africa. This paper is focused on the preliminary sedimentological-petrographic characteristics of these deposits and an attempt to indicate their source areas as well as mechanisms of transportation and deposition in the context of Pleistocene pluvial episodes.
Źródło:
Studia Quaternaria; 2016, 33; 69-78
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stochastic Flood Forecasting System. The Middle River Vistula Case Study edited by Renata J. Romanowicz and Marzena Osuch 2015), GeoPlanet: Earth and Planetary Sciences, ISBN 978-3-319-18853-9, ISBN 978-3-319-18854-6 (eBook), Springer – Cham, Heidelberg, New York, Dordrecht, London
Autorzy:
Kundzewicz, Zbigniew W.
Powiązania:
https://bibliotekanauki.pl/articles/2079197.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Źródło:
Papers on Global Change; 2016, 23; 175-178
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Symptoms and Driving Factors of Contemporary Earth Warming and Projections for the Future
Autorzy:
Wibig, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2079200.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
This paper outlines the symptoms of contemporary global warming, reviews its possible driving factors and presents some projections for future. Key among the symptoms are those related to temperature, with the increase in average global temperature since 1880 now reaching a value of 0.85°C. While warming has encompassed almost the whole world, the high latitudes have warmed more than the low, and maximum temperature has increased more than average temperature. Warming has been causing sea level rise, thanks to both the thermal expansion of warming water and the melting of ice on land. The other consequence of warming is a change in precipitation pattern, manifesting itself in higher precipitation in certain parts of the world (generally at low and high latitudes), but also lower precipitation in other parts (mainly the Tropics); as well as in changes in the intraannual course characterising precipitation (with more falling in winter and less in summer), and in the frequency and intensity of rainfall (more intense heavy-precipitation events and higher variability where the frequency of precipitation is concerned). Among the possible driving factors, the most important are those related to the increase of CO2 and mixing ratios of other greenhouse gases in the troposphere. Land-use changes and emissions of aerosols to the atmosphere also exert a major impact on temperature. These are mainly anthropogenic factors. While natural drivers also modulate the climate markedly, they tend to warm and cool the globe alternately, stepping up warming when they are in a warming phase, but slowing down or even offsetting warming during a cooling phase. Projections for the future are entirely dependent on socio-economic scenarios of future development. All the (economically) realistic scenarios point to a continuation of the warming trend, with a further intense sea-level rise and precipitation changes, albeit with the rate of change varying in line with the rate of increase in concentrations of the greenhouse gases. The realistic range of values for average rise in global temperature is between 2 and even 6 degrees Celsius.
Źródło:
Papers on Global Change; 2016, 23; 37-57
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Demographic Crisis and Global Migration – Selected Issues
Autorzy:
Frątczak, Ewa Zofia
Powiązania:
https://bibliotekanauki.pl/articles/2079203.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Nauki o Ziemi
Opis:
Currently the world is undergoing a serious demographic shift, characterised by slowing population growth in developed countries. However, the population in certain less-developed regions of the world is still increasing. According to UN data, as of 2015, (World… 2015), 244 million people (or 3.3% of the global population) lived outside their country of birth. While most of these migrants travel abroad looking for better economic and social conditions, there are also those forced to move by political crises, revolutions and war. Such migration is being experienced currently in Europe, a continent which is thus going through both a demographic crisis related to the low fertility rate and population ageing, and a migration crisis. Global migrations link up inseparably with demographic transformation processes taking place globally and resulting in the changing tempo of population growth. Attracting and discouraging migration factors are changing at the same time, as is the scale and range of global migration, and with these also the global consequences. The focus of work addressed in this paper is on global population, the demographic transformation and the role of global migrations, as well as the range and scale of international migration, and selected aspects of global migrations including participation in the global labour market, the scale of monetary transfers (remittances) and the place of global migration in the UN 2030 Agenda for Sustainable Development (Transforming… 2015) and the Europe of two crises (Domeny 2016).
Źródło:
Papers on Global Change; 2016, 23; 71-87
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
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