scholarly journals A Photographic Record of the Upper Headwater Tributaries, Basins and Riparia of the Snake River

Author(s):  
Susan Green ◽  
Dr. Michael Krop

Photographic surveys have been used since the early 1940’s to document coastlines, fuel supplies and river courses. The US Navy, post world war II, flew over the Arctic coast to document possible locations for oil extraction. These very same photos are now being utilized to compare changes in tundra vegetation at the same locations today. John Muirs’ photos of Glacier Bay are a startling testament to the melted glaciers no longer visible from the same vantage point in present times. Taking photographs to monitor change may not tell the entire story behind a change in landscape. However, photos taken over a number of years from the same vantage points, can help monitor landscape changes due to habitat fragmentation, global warming, forest fire, cattle grazing and other land management issues. Photo monitoring is inexpensive, simple and can portray change to many different groups. Of course, photos taken to reveal change must start with documenting current or normal conditions. This is sometimes called baseline monitoring. The park ranger in Glacier National Park did not realize when he took his picture of the Grinnell glacier in 1911 that his photo would become an alarming baseline photo for evidence of global warming. The purpose of this project was to document the Snake River headwater basin and its riparian zones as a document in time for future reference. The original documentation included 48 images of two main headwater areas; the Shoshone and Lewis Lake areas and the Fox Park-Two Ocean Bear Management Areas near the Yellowstone Park border. Since the Shoshone-Lewis lakes are easily assessable and photo space here is limited, I have chosen to only use photos from the more remote areas.

2021 ◽  
Vol 11 (1) ◽  
pp. 67-75
Author(s):  
M.P. Pogojeva ◽  
◽  
E.V. Yakushev ◽  
I.N. Petrov ◽  
E.A. Yaeski ◽  
...  

In the context of global warming, the permafrost thawing could have a significant impact on the chemical composition of seawaters in the Arctic. Permafrost thawing is a potential source of organic and inorganic forms of nutrients, as well as heavy metals. During the Russian-Norwegian expedition to Svalbard in June 2018, the researchers carried out a laboratory experiment to assess the permafrost thawing effect on the chemical properties of seawater. They took permafrost samples from an abrasive slope 10 km west of Longyearbyen. The experiment took place in the laboratory of the University Center on Svalbard (UNIS), the changes in dissolved oxygen, pH, concentrations of nutrients and pollutants associated with the thawing of permafrost were investigated. During the experiment, the researchers added permafrost samples to the seawater samples, and then kept the solution under natural conditions while taking samples at regular intervals. The experimental data made it possible to assess the changes in the concentration of chemicals because of the permafrost thawing. The experiment shows the significance of the investigated process for coastal waters, its effect on the supply of nutrients, heavy metals, ocean acidification, and, in this regard, demonstrates the sensibility of coastal ecosystems to multiple factors associated with global warming.


2021 ◽  
Vol 2 (1) ◽  
pp. 21-37
Author(s):  
Sharon Sebastian Effendy ◽  
Bernadeth Franchika ◽  
Vanessa Anthea Kusuma

Global warming and climate change resulting in the melting of sea ice within the Arctic have subsequently opened the possibility to explore and exploit the region. Previously seen as simply a region full of ice, the Arctic is believed to possess abundant natural resources, with an estimated 13% of undiscovered oil, 30% of natural gas resources in the world, as well as the opening of a new sea route which will be able to serve as a shortcut for countries to exchange goods - attracting states to pay closer attention to the region, be it militarily, politically, or economically, the United States being one of them. The increase in presence and power among Arctic and non-Arctic countries, especially Russia and China, has inarguably created a state of security dilemma among all parties involved, which is why if the US would like to seek a larger presence within the region, it becomes important for the country to involve NATO as one of its key partners, despite issues concerning the country and the organization. For the purpose of this paper, the aforementioned argument will further be supported using concepts of security dilemma, hegemonic stability theory, and the balance of threat.


2017 ◽  
Vol 19 (1) ◽  
pp. 55-75 ◽  
Author(s):  
Katherine Jenness

This paper explores the way American intellectuals depicted Sigmund Freud during the peak of popularity and prestige of psychoanalysis in the US, roughly the decade and a half following World War II. These intellectuals insisted upon the unassailability of Freud's mind and personality. He was depicted as unsusceptible to any external force or influence, a trait which was thought to account for Freud's admirable comportment as a scientist, colleague and human being. This post-war image of Freud was shaped in part by the Cold War anxiety that modern individuality was imperilled by totalitarian forces, which could only be resisted by the most rugged of selves. It was also shaped by the unique situation of the intellectuals themselves, who were eager to position themselves, like the Freud they imagined, as steadfastly independent and critical thinkers who would, through the very clarity of their thought, lead America to a more robust democracy.


Author(s):  
Pedro Iacobelli Delpiano

ResumenLa literatura sobre la historia internacional de Chile durante la Segunda Guerra Mundial ha centrado el debate en torno al juego de presiones ejercidas por los Estados Unidos hacia los gobiernos radicales de Jerónimo Méndez Arancibia y Juan Antonio Ríos Morales para conseguir que Chile se sumara a la política continental contra las fuerzas del Eje. La neutralidad chilena fue interpretada como una actitud traicionera por los estadounidenses y en un triunfo por los países del Eje durante 1941 a 1943. Este artículo introduce el debate y busca presentar las posibilidades historiográficas al incluir a Japón, tanto como actor relevante en la política chilena como receptor de la “neutralidad” chilena en el periodo.Palabras clave: Chile, Japón, Segunda Guerra Mundial, Estados Unidos, historiografíaThe Chilean “Neutrality” in World War II (1939-1943): A historiographical analysis focused on the literature of the diplomatic relations between Chile and JapanAbstractThe literature about Chile´s international history during World War II has heavily laid on the power dynamics between the US and the Chilean radical governments of vice-president (interim) Jerónimo Méndez Arancibia and president Juan Antonio Rios Morales. Since the Roosevelt administration sought to secure the rupture of diplomatic relations between Chile and the Axis powers, Santiago´s refusal to break relations was understood as treason by the US and as a diplomatic success by the Axis powers during 1941-1943.This paper delves into the historiographical possibilities in including Japan, either as a relevant actor in the Chilean politics and as receptor of the newsabout Chile´s neutrality.Keywords: Chile, Japan, Second World War, United States, historiographyA “neutralidade” chilena na segunda guerra mundial(1939-1943): uma análise historiográfica, com ênfase naliteratura sobre as relações Chile-JapãoResumoA literatura sobre a história internacional do Chile durante a Segunda Guerra Mundial tem-se centrado no debate em torno ao jogo de pressões exercidas pelos Estados Unidos aos governos radicais de Jerónimo Méndez Arancibia e Juan Antonio Rios Morales, para conseguir que o Chile pudesse se somar a política continental contra as forças do Eixo. A neutralidade chilena foi interpretada como uma atitude traiçoeira pelos norte-americanos e uma vitória para os países do Eixo durante 1941 a 1943. Este artigo introduz o debate e procura a presentar as possibilidades historiográficas ao incluir ao Japão, tanto como um ator relevante na política chilena como o destinatário da “neutralidade” chilena no período.Palavras-chave: Chile, Japão, Segunda Guerra Mundial, Estados Unidos, historiografia


2021 ◽  
Author(s):  
Hyung-Ju Park ◽  
Kwang-Yul Kim

AbstractEffect of global warming on the sub-seasonal variability of the Northern Hemispheric winter (NDJFM) Pacific storm-track (PST) activity has been investigated. Previous studies showed that the winter-averaged PST has shifted northward and intensified, which was explained in terms of energy exchange with the mean field. Effect of global warming exhibits spatio-temporal heterogeneity with predominance over the Arctic region and in the winter season. Therefore, seasonal averaging may hide important features on sub-seasonal scales. In this study, distinct sub-seasonal response in storm track activities to winter Northern Hemispheric warming is analyzed applying cyclostationary empirical orthogonal function analysis to ERA5 data. The key findings are as follows. Change in the PST is not uniform throughout the winter; the PST shifts northward in early winter (NDJ) and intensifies in late winter (FM). In early winter, the combined effect of weakened baroclinic process to the south of the climatological PST and weakened barotropic damping to the north is responsible for the northward shift. In late winter, both processes contribute to the amplification of the PST. Further, change in baroclinic energy conversion is quantitatively dominated by eddy heat flux, whereas axial tilting of eddies is primarily responsible for change in barotropic energy conversion. A close relationship between anomalous eddy heat flux and anomalous boundary heating, which is largely determined by surface turbulent heat flux, is also demonstrated.


Tellus B ◽  
2005 ◽  
Vol 57 (5) ◽  
pp. 391-403 ◽  
Author(s):  
Albert J. Gabric ◽  
Bo Qu ◽  
Patricia Matrai ◽  
Anthony C. Hirst

1995 ◽  
Vol 43 (2) ◽  
pp. 147-158 ◽  
Author(s):  
Anatoly V. Lozhkin ◽  
Patricia M. Anderson

AbstractAlluvial, fluvial, and organic deposits of the last interglaciation are exposed along numerous river terraces in northeast Siberia. Although chronological control is often poor, the paleobotanical data suggest range extensions of up to 1000 km for the primary tree species. These data also indicate that boreal communities of the last interglaciation were similar to modern ones in composition, but their distributions were displaced significantly to the north-northwest. Inferences about climate of this period suggest that mean July temperatures were warmer by 4 to 8°C, and seasonal precipitation was slightly greater. Mean January temperatures may have been severely cooler than today (up to 12°C) along the Arctic coast, but similar or slightly warmer than present in other areas. The direction and magnitude of change in July temperatures agree with Atmospheric General Circulation Models, but the 126,000-year-B.P. model results also suggest trends opposite to the paleobotanical data, with simulated cooler winter temperatures and drier conditions than present during the climatic optimum.


Polar Record ◽  
2015 ◽  
Vol 52 (2) ◽  
pp. 170-175 ◽  
Author(s):  
Graça Ermida

ABSTRACTAt least four littoral countries have Arctic strategies that address energy issues. However, US, Canada, Russia and Norway strategies up to 2020 and beyond, reveal different interests in exploring Arctic resources. While Arctic oil and gas are of strategic importance to Russia and to Norway, Canada and the US seem content with continuing their current extraction predominantly south of the Arctic Circle. Despite the different approaches, the outcomes seem strangely similar. Indeed, despite the hype concerning the Arctic in the last decade, and for very diverse reasons, it is unlikely that any of these four countries will increase hydrocarbon production in the Arctic during the period under analysis. This was true even before the recent drop in oil prices. For all its potential, it is unclear what lies ahead for the region.


2003 ◽  
Vol 2 (3) ◽  
pp. 391-406
Author(s):  
Mehdi Parvizi Amineh ◽  
Henk Houweling

AbstractThis article develops several concepts of critical geopolitics and relates them to the energy resources of the Caspian Region. Energy resources beyond borders may be accessed by trade, respectively by conquest, domination and changing property rights. These are the survival strategies of human groups in the international system. The article differentiates between demand-induced scarcity, supply-induced scarcity, structural scarcity and the creation, respectively, transfer of property rights. Together, the behaviors referred to by these concepts create a field of social forces that cross state borders involving state and a variety of non-state actors. During World War II, the US began to separate the military borders of the country from its legal-territorial borders. By dominating the world's oceans, the Anglo-Saxon power presided over the capacity to induce scarcity by interdicting maritime supplies to allies and enemies alike. Today, overland transport increasingly connects economies and energy supplies on the Eurasian continent. The US has therefore to go on land in order to pre-empt the land-based powers from unifying their economies and energy supplies.


Author(s):  
Klaus Dodds ◽  
Jamie Woodward

The Arctic: A Very Short Introduction provides an account of the Arctic, its physical environment, and its people. The Arctic is demanding global attention as it warms, melts, and thaws in a manner that threatens not just its 4 million inhabitants, but the whole planet. The reduction of the Arctic to its changing environment would ignore the complexities of the region and its potential. This VSI explores key issues facing the region today, from geopolitics to global warming. It examines the causes and effects of cultural, physical, ecological, political, and economic change in the Arctic, and considers its uncertain future.


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