The impact of climate change on an emerging coastline affected by discontinuous permafrost: Manitounuk Strait, northern Quebec

2003 ◽  
Vol 40 (10) ◽  
pp. 1393-1404 ◽  
Author(s):  
Nancy Beaulieu ◽  
Michel Allard
Keyword(s):  
Forest Growth ◽  
Ice Age ◽  
Permafrost Degradation ◽  
Isostatic Uplift ◽  
Discontinuous Permafrost ◽  
Ground Warming ◽  
A Chain ◽  
The 19Th Century ◽  
The Impact ◽  
Marine Basin

A comparative analysis of air photos and a field survey show that permafrost-affected sectors of the coastline along Manitounuk Strait receded at an increasing rate between 1950 and 1995. These sectors are in bays where post-glacial Tyrrell Sea clays outcrop. During the same period, sand beaches at the mouths of streams and rock and till shorelines on headlands prograded at the pace of isostatic uplift. Permafrost that had aggraded and formed lithalsas and plateaus during the 19th century (i.e., during the Little Ice Age) had expanded over the tidal marsh and had locally provoked accelerated coastal emergence as frost heaving added to post-glacial isostatic uplift. Climate warming during the 20th century, particularly during the summer months, generated a chain of impacts involving forest growth, snow cover, ground warming, and permafrost degradation. Waves and tidal currents are mainly responsible for the evacuation and transport of thermokarst-produced silts and clays from the shore into the marine basin.

scholarly journals The Impact of Permafrost Degradation on Lake Changes in the Endorheic Basin on the Qinghai–Tibet Plateau

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1287
Author(s):  
Wenhui Liu ◽  
Changwei Xie ◽  
Wu Wang ◽  
Guiqian Yang ◽  
Yuxin Zhang ◽  
...  
Keyword(s):  
Tibet Plateau ◽  
Permafrost Degradation ◽  
Ground Ice ◽  
Landsat Images ◽  
Temporal Area ◽  
Discontinuous Permafrost ◽  
Continuous Permafrost ◽  
Endorheic Basin ◽  
Ice Content ◽  
The Impact

Lakes on the Qinghai–Tibetan Plateau (QTP) have experienced significant changes, especially the prevailing lake expansion since 2000 in the endorheic basin. The influence of permafrost thawing on lake expansion is significant but rarely considered in previous studies. In this study, based on Landsat images and permafrost field data, the spatial-temporal area changes of lakes of more than 5 km2 in the endorheic basin on the QTP during 2000–2017 is examined and the impact of permafrost degradation on lake expansion is discussed. The main results are that permafrost characteristics and its degradation trend have close relationships with lake changes. Lake expansion in the endorheic basin showed a southwest–northeast transition from shrinking to stable to rapidly expanding, which corresponded well with the permafrost distribution from island-discontinuous to seasonally frozen ground to continuous permafrost. A dramatic lake expansion in continuous permafrost showed significant spatial differences; lakes expanded significantly in northern and eastern continuous permafrost with a higher ground ice content but slightly in southern continuous permafrost with a lower ground ice content. This spatial pattern was mainly attributed to the melting of ground ice in shallow permafrost associated with accelerating permafrost degradation. Whereas, some lakes in the southern zones of island-discontinuous permafrost were shrinking, which was mainly because the extended taliks arising from the intensified permafrost degradation have facilitated surface water and suprapermafrost groundwater discharge to subpermafrost groundwater and thereby drained the lakes. Based on observation and simulated data, the melting of ground ice at shallow depths below the permafrost table accounted for 21.2% of the increase in lake volume from 2000 to 2016.

The changing landscape of Canada's western boreal forest: the current dynamics of permafrost

2000 ◽  
Vol 30 (2) ◽  
pp. 283-287 ◽  
Author(s):  
Dale H Vitt ◽  
Linda A Halsey ◽  
Stephen C Zoltai
Keyword(s):  
Organic Matter ◽  
Little Ice Age ◽  
Water Levels ◽  
Ice Age ◽  
Ecosystem Change ◽  
Western Canada ◽  
Permafrost Degradation ◽  
Organic Matter Accumulation ◽  
The Impact

This paper examines the impact that climatic change over the last millennium has had on aggradation and degradation of permafrost peatlands and the associated change in organic matter accumulation. Permafrost reached its southernmost Holocene extent in boreal continental western Canada during the Little Ice Age with 28 800 km2 of permafrost peatland present within a sensitive zone demarcated by permafrost degradation. Subsequent degradation of permafrost has occurred in response to warming, with forested bogs changing to nonforested poor fens, associated with rising water levels. In conjunction with this ecosystem change, long-term net organic matter accumulation increases. As permafrost is in disequilibrium with climate, much of the permafrost that remains is in a relict state. Mapping of past and present permafrost distribution from peatland landforms indicates only 9% has degraded since the Little Ice Age, resulting in a 5% increase in long-term net organic matter accumulation. Of the permafrost that remains, 22% is in disequilibrium, located largely in the northern part of the sensitive zone. Additional loss of forested lands will occur in the future in boreal continental western Canada under present-day climatic conditions as permafrost approaches equilibrium, with a further 11% increase in long-term net organic matter accumulation predicted.

The Portrayal of Islam in Some Early Nigerian Newspapers (1880-1910)

1989 ◽  
Vol 6 (2) ◽  
pp. 319-328
Author(s):  
Salahudeen Yusuf
Keyword(s):  
18Th Century ◽  
Religious Conflict ◽  
Intellectual Honesty ◽  
The People ◽  
Late 18Th Century ◽  
The Press ◽  
External Threat ◽  
History Of ◽  
The 19Th Century ◽  
The Impact

The history of Islam in part of what is known today as Nigeria datesto about the loth Century. Christianity dates to the late 18th Century. Bythe middle of the 19th Century, when Nigerian newspapers began to appearon the streets of Nigeria, both religions had won so many followers and extendedto so many places in Nigeria that very few areas were untouched bytheir influence. The impact of both religions on their adherents not only determinedtheir spiritual life, but influenced their social and political lives aswell. It therefore became inevitable that both religions receive coverage frommost of the newspapers of the time. How the newspapers as media of informationand communication reported issues about the two religions is thetheme of this paper.Rationale for the StudyThe purpose of this study is to highlight the context in which such earlynewspapers operated and the factors that dictated their performance. Thisis because it is assumed that when a society faces external threat to its territory,culture, and independence, all hands (the press inclusive) ought tobe on deck to resist the threat with all might. Were newspapers used as verbalartillery and how did they present each religion? It is also assumed thatin a multireligious society a true press should be objective and serve as avanguard in the promotion of the interest of the people in general and notcreate or foster an atmosphere of religious conflict. The study also aims atfinding out whether the papers promoted intellectual honesty and fosteredthe spirit of unity particularly when the society was faced with the encroachmentof the British who posed a threat to their freedom, culture, economy ...

scholarly journals Effect of Competition and Climatic Conditions on the Growth of Beech in the Mixed Pine Beech Stand: Lithuanian Case Study

2020 ◽  
Vol 3 (1) ◽  
pp. 49
Author(s):  
Edgaras Linkevičius ◽  
Gerda Junevičiūtė
Keyword(s):  
Intraspecific Competition ◽  
Tree Species ◽  
Forest Growth ◽  
Competition Effect ◽  
Diameter Increment ◽  
Cart Analysis ◽  
Crown Width ◽  
Beech Stand ◽  
Negative Effect ◽  
The Impact

Climate change and warming will potentially have profound effects on forest growth and yield, especially for pure stands in the near future. Thus, increased attention has been paid to mixed stands, e.g., pine and beech mixtures. However, the interaction of tree species growing in mixtures still remains unknown. Thus, the aim of this study was to investigate the impact of the interspecific and intraspecific competition to diameter, height, and crown width of pine and beech trees growing in mixtures, as well as to evaluate the impact of climatic indicators to the beech radial diameter increment. The data was collected in 2017 at the mixed mature pine beech double layer stand, located in the western part of Lithuania. The sample plot of 1.2 hectare was established and tree species, diameter at the breast height, tree height, height-to-crown base, height-to-crown width, and position were measured for all 836 trees. Additionally, a representative sample of radial diameter increments were estimated only for the beech trees by taking out core discs at the height of 1 m when the stand was partially cut. Competition analysis was based on the distance-dependent competition index, which was further based on crown parameters. Climatic effect was evaluated using classification and regression tree (CART) analysis. We found almost no interspecific competition effect to diameter, height, or crown width for both tree species growing in the first layer. However, it had an effect on beeches growing in the second layer. The intraspecific competition effect was important for pine and beech trees, showing a negative effect for both of them. Our results show the possible coexistence of these tree species due to niche differentiation. An analysis of climatic indicators from 1991–2005 revealed that precipitation from February–May of the current vegetation year and mean temperatures from July to September expressed radial diameter increment effects for beech trees. Low temperatures during March and April, as well as high precipitation during January, had a negative effect on beech radial increments. From 2006–2016, the highest effect on radial diameter increments was the mean temperatures from July to September, as well as the precipitation in January of the current year. From 1991–2016, the highest effect on radial diameter increments was the temperature from July to September 1991–2016 and the precipitation in June 1991–2016. Generally, cool temperatures and higher precipitation in June had a positive effect on beech radial increments. Therefore, our results show a sensitivity to high temperatures and droughts during summer amid Lithuanian’s growth conditions.

scholarly journals Effective Demand Forecasting in Health Supply Chains: Emerging Trend, Enablers, and Blockers

Logistics ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 12
Author(s):  
Lakshmy Subramanian
Keyword(s):  
Supply Chains ◽  
Demand Forecasting ◽  
Weak Links ◽  
Key Factors ◽  
Scarce Resources ◽  
Weakest Link ◽  
Emerging Trends ◽  
A Chain ◽  
Health Commodities ◽  
The Impact

Health supply chains aim to improve access to healthcare, and this can be attained only when health commodities appropriate to the health needs of the global population are developed, manufactured, and made available when and where needed. The weak links in the health supply chains are hindering the access of essential healthcare resulting in inefficient use of scarce resources and loss of lives. A chain is only as strong as its weakest link, and demand forecasting is one of the weakest links of health supply chains. Also, many of the existing bottlenecks in supply chains and health systems impede the accurate forecasting of demand, and without the ability to forecast demand with certainty, the stakeholders cannot plan and make commitments for the future. Forecasts are an important feeder for budgeting and logistics planning. Under this backdrop, the study examines how improved forecasting can lead to better short-term and long-term access to health commodities and outlines market-related risks. It explores further how incentives are misaligned creating an uneven distribution of risks, leading to the inability to match demand and supply. For this purpose, a systematic literature review was performed, analyzing 71 articles from a descriptive and content approach. Findings indicate the emerging trends in global health and the consequences of inaccurate demand forecasting for health supply chains. The content analysis identifies key factors that can pose a varying degree of risks for the health supply chain stakeholders. The study highlights how the key factors emerge as enablers and blockers, depending on the impact on the overall health supply chains. The study also provides recommendations for actions for reducing these risks. Consequently, limitations of this work are presented, and opportunities are identified for future lines of research. Finally, the conclusion confirms that by adopting a combination of approaches, stakeholders can ensure better information sharing, identify avenues of diversifying risks, and understand the implications.

Richard Wagner: Leitmotiv e Música Dramática

2010 ◽  
Vol 18 (36) ◽  
pp. 25-44
Author(s):  
Elisabete M. de Sousa ◽  
Keyword(s):  
Richard Wagner ◽  
Robert Schumann ◽  
Musical Composition ◽  
Musical Language ◽  
Program Music ◽  
Hector Berlioz ◽  
Verbal Language ◽  
Present Essay ◽  
The 19Th Century ◽  
The Impact

The present essay presents the content of the landmarks that punctuate the long dialogue between verbal language and musical language during the 19th Century, by means of examples taken from the critical and theoretical writings of Hector Berlioz, Robert Schumann and Richard Wagner. In the search for the dramatic essence of music, such dialogue took different forms: the possibility of verbal language being translated by musical language, the pre-existence of a musical-poetic idea in any musical composition, eventually contributing to the appearance of program music, and finally, the principles presiding over Wagner’s Gesamtkunstwerk. Special emphasis is given to Richard Wagner’s Parisian article De l'Ouverture (1841), as well as to the impact on Soren Kierkegaard.

Postcolonialism

Geography ◽  
2021 ◽  
Author(s):  
Lindsay Naylor
Keyword(s):  
Production Systems ◽  
Colonial Period ◽  
Economic Relations ◽  
15Th Century ◽  
Accumulation By Dispossession ◽  
Indigenous Groups ◽  
The 19Th Century ◽  
The Impact ◽  
British Colonies ◽  
Independence Movements

In the colonial period imperialism advanced in uneven ways across time and space globally. European exploration in the late 15th century first brought destructive, exploitative, and deadly changes to what became known as the Americas. The subjugation and elimination of Indigenous groups, which commenced during this period, created the conditions for accumulation by dispossession, enslavement (of both Indigenous groups and people stolen from Africa), plantation-style production systems, and the extraction of resources—the legacies of which still mark political, social, economic, and environmental landscapes today. Following rebellion and successful de jure (legal) independence from Europe in the late 1700s and early 1800s (starting with the radical uprising of enslaved peoples in Haiti), Western powers turned to new regions to regain such systems of control and resource extraction. In 1848, the Berlin Conference was held— also called the “Scramble for Africa,” where European powers divided the continent and created new sites of extraction. Such patterns followed in South and Southeast Asia as well as North Africa and Central Asia in the latter parts of the 19th century. As a result of these violent campaigns, there are very few places on the globe that did not sustain, at some point, a form of colonial-imperial relation. Independence movements were ongoing and by the end of the 20th century, de jure colonial control had all but disappeared. Decolonization had occurred and the global periphery entered the period of being postcolonial. Former British colonies were assembled into the Commonwealth, which changed relations from direct control and subjugation to allegiance to the Queen and for some, drastic changes in economic relations, (this had the effect of marginalizing Indigenous struggles in many of these places). Notwithstanding the legal separation of the colonies from imperial powers, de facto (in effect) colonial arrangements lingered and remain today, giving rise to a series of critiques and new ways of thinking about imperialism and the impact of colonialism, such as the theory of postcolonialism.

THE MAIN DIRECTIONS OF SIBLING RESEARCH

2021 ◽  
pp. 96-115
Author(s):  
Oksana V. Baskaeva ◽  
Keyword(s):  
Personal Development ◽  
Personal Characteristics ◽  
Central Feature ◽  
Gender And Age ◽  
The Family ◽  
Sick Children ◽  
Future Direction ◽  
The 19Th Century ◽  
The Impact

An overview of the areas of sibling research that laid the foundation for the modern understanding of sibling issues is presented. Attention is focused on the importance of sibling relationships for personal development, socialization and adaptation, and on the existing shortage of relevant work at the same time. The main stages of the development of sibling theory in their continuity are considered, starting from the first studies devoted to the search for a connection between the order of birth and achievements and dated to the end of the 19th century, to the term “individual environment” developed by the genetics of behavior in the second half of the 20th century. It emphasizes the role of A. Adler, who has made sibling a central feature of family life and personal development and has long determined the future direction of empirical family research. It shows a gradual shift in the interest of researchers from studying the influence of birth order, gender, and age intervals between siblings on personal characteristics. In this connection, an analysis of the nature of sibling relations on the basis of reciprocity and complementarity, undertaken by Dunn, is given. Early works on the jealousy and rivalry of children in the family, the study of the impact of parental differential treatment on them, as well as the influence of child characteristics on siblings in families with sick children are considered.

SEJARAH KAMPUNG PONDOL DAN KOMUNITAS EKSIL MUSLIM DI KOTA MANADO

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Roger Allan Christian Kembuan
Keyword(s):  
Historical Method ◽  
National Archives ◽  
Colonial Archives ◽  
The Republic ◽  
Xix Century ◽  
Colonial Government ◽  
The 19Th Century ◽  
The Impact ◽  
New Location ◽  
Dutch Colonial

Abstract: This research discusses the process of forming and developing of Pondol village in Manado as a location for exile along with the Dutch colonial government policy that placed exiles who came from several sultanates in Java in the Manado Residency during the 19th century. The discussion includes, first, the background of the exile of the Javanese aristocrats in Manado. Second, the process of establishing Pondol as a location for exile and its development during the XIX century, and third, the adaptations made by the exiles to adjust to their exile and the impact of their arrival on the Manado-Minahasa community. The historical method is used in this research, using colonial archives from the XIX century which are stored in the National Archives of the Republic of Indonesia, and local sources, especially manuscripts stored by their descendants in Manado and Java. The findings in this study are; Kampung Pondol was formed due to the isolation of Kanjeng Ratu Sekar Kedaton and Pangeran Suryeng Ingalaga and some of his followers originated from political intrigue that occurred in the Sultanate of Yogyakarta. Second, the reason why Kampung Pondol was chosen as the new location for exile by the Dutch colonial government for Javanese royal officials was different from the exile of other figures in Tondano and Tomohon. Third, the form of adaptation carried out by the exiles in Kampung Pondol Manado was marriage with women from Manado and relationships with Dutch people who lived around them.Keywords : Exile, Javanese Noble, Pondol Village, Adaptation. Abstrak: Penelitian ini membahas tentang proses terbentuk dan perkembangan kampung Pondol di Manado sebagai lokasi pengasingan seiring dengan kebijakan pemerintah kolonial Belanda yang menempatkan para eksil yang berasal dari beberapa kesultanan di Jawa di Karesidenan Manado pada sepanjang abad 19.  Pembahasannya meliputi; Pertama, Latar belakang pengasingan para bangsawan Jawa di Manado. Kedua, proses terbentuknya Pondol sebagai lokasi pengasingan dan perkembangannya selama abad XIX, dan Ketiga, adaptasi yang dilakukan para eksil untuk menyesuaikan diri di pengasingan serta dampak kedatangan mereka pada masyarakat Manado-Minahasa. Metode sejarah dipergunakan dalam penelitian ini, dengan mempergunakan sumber Arsip Kolonial kurun waktu abad ke XIX yang tersimpan di Arsip Nasional Republik Indonesia,  dan sumber lokal terutama manuskrip yang tersimpan oleh keturunannya di Manado dan Jawa. Temuan dalam penelitian ini adalah; Kampung Pondol terbentuk karena Pengasingan Kanjeng Ratu Sekar Kedaton dan Pangeran Suryeng ingalaga dan beberapa pengikutnya berawal dari intrik politik yang terjadi di Kesultanan Yogyakarta. Kedua, alasan Kampung Pondol dipilih sebagai lokasi baru pengasingan Pemerintah Kolonial Belanda bagi pembesar kerajaan Jawa yang berbeda lokasi dengan pengasingan tokoh-tokoh lainnya di Tondano dan Tomohon. Ketiga, bentuk adaptasi yang dilakukan oleh para eksil di Kampung Pondol Manado dilakukan pernikahan dengan wanita dari Manado dan relasi dengan orang-orang Belanda yang tinggal disekeliling mereka.Kata Kunci : Eksil, Bangsawan Jawa, Kampung Pondol, Adaptasi.

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