Variations in the total column abundances of atmospheric carbon monoxide and methane in the polar regions

1991 ◽  
Vol 3 (4) ◽  
pp. 443-449 ◽  
Author(s):  
L.N. Yurganov ◽  
V.F. Radionov
Keyword(s):  
Carbon Monoxide ◽  
Seasonal Variations ◽  
The Arctic ◽  
Polar Regions ◽  
Atmospheric Carbon ◽  
Atmospheric Carbon Monoxide ◽  
The Antarctic ◽  
Total Column

Atmospheric carbon monoxide and methane were studied spectroscopically in the Arctic and Antarctic. Seasonal variations of CO are evident in both polar regions, absolute values of abundance being three times larger in the Arctic than in the Antarctic. Increasing concentration trends were confirmed for both gases: 0.8% per year for Antarctic CO, 0.5% per year for Antarctic CH4 and 3.1% per year for Arctic CH4.

scholarly journals Total column and surface densities of atmospheric carbon monoxide in Alaska, 1995

1998 ◽  
Vol 103 (D15) ◽  
pp. 19337-19345 ◽  
Author(s):  
Leonid N. Yurganov ◽  
Daniel A. Jaffe ◽  
Eric Pullman ◽  
Paul C. Novelli
Keyword(s):  
Carbon Monoxide ◽  
Atmospheric Carbon ◽  
Atmospheric Carbon Monoxide ◽  
Total Column

scholarly journals Evolution in the cold

2000 ◽  
Vol 12 (3) ◽  
pp. 257-257 ◽  
Author(s):  
Andrew Clarke
Keyword(s):  
Evolutionary Biology ◽  
Antarctic Fish ◽  
The Arctic ◽  
Polar Regions ◽  
Evolutionary Studies ◽  
Adaptive Radiations ◽  
The Antarctic ◽  
The Impact ◽  
Insight Into

Theodosius Dobzhansky once remarked that nothing in biology makes sense other than in the light of evolution, thereby emphasising the central role of evolutionary studies in providing the theoretical context for all of biology. It is perhaps surprising then that evolutionary biology has played such a small role to date in Antarctic science. This is particularly so when it is recognised that the polar regions provide us with an unrivalled laboratory within which to undertake evolutionary studies. The Antarctic exhibits one of the classic examples of a resistance adaptation (antifreeze peptides and glycopeptides, first described from Antarctic fish), and provides textbook examples of adaptive radiations (for example amphipod crustaceans and notothenioid fish). The land is still largely in the grip of major glaciation, and the once rich terrestrial floras and faunas of Cenozoic Gondwana are now highly depauperate and confined to relatively small patches of habitat, often extremely isolated from other such patches. Unlike the Arctic, where organisms are returning to newly deglaciated land from refugia on the continental landmasses to the south, recolonization of Antarctica has had to take place by the dispersal of propagules over vast distances. Antarctica thus offers an insight into the evolutionary responses of terrestrial floras and faunas to extreme climatic change unrivalled in the world. The sea forms a strong contrast to the land in that here the impact of climate appears to have been less severe, at least in as much as few elements of the fauna show convincing signs of having been completely eradicated.

scholarly journals BRICS in polar regions: Brazil’s interests and prospects

2020 ◽  
Vol 13 (3) ◽  
pp. 326-340
Author(s):  
Paulo Borba Casella ◽  
◽  
Maria Lagutina ◽  
Arthur Roberto Capella Giannattasio ◽  
◽  
...  
Keyword(s):  
Legal Regulation ◽  
The Arctic ◽  
Polar Regions ◽  
Arctic Council ◽  
Public Power ◽  
Promising Tool ◽  
Antarctic Treaty ◽  
International Power ◽  
Global Affairs ◽  
The Antarctic

The current international legal regulation of the Arctic and Antarctica was organized during the second half of the XX century to establish an international public power over the two regions, the Arctic Council (AC) and the Antarctic Treaty System (ATS), which is characterized by Euro-American dominance. However, the rise of emerging countries at the beginning of the XXI century suggests a progressive redefinition of the structural balance of international power in favor of states not traditionally perceived as European and Western. This article examines the role of Brazil within the AC and the ATS to address various polar issues, even institutional ones. As a responsible country in the area of cooperation in science and technology in the oceans and polar regions in BRICS, Brazil appeals to its rich experience in Antarctica and declares its interest in joining the Arctic cooperation. For Brazil, participation in polar cooperation is a way to increase its role in global affairs and BRICS as a negotiating platform. It is seen in this context as a promising tool to achieve this goal. This article highlights new paths in the research agenda concerning interests and prospects of Brazilian agency in the polar regions.

Temporal patterns and source regions of atmospheric carbon monoxide at two background stations in China

2019 ◽  
Vol 220 ◽  
pp. 169-180 ◽  
Author(s):  
Shuo Liu ◽  
Shuangxi Fang ◽  
Miao Liang ◽  
Wanqi Sun ◽  
Zhaozhong Feng
Keyword(s):  
Carbon Monoxide ◽  
Temporal Patterns ◽  
Source Regions ◽  
Atmospheric Carbon ◽  
Atmospheric Carbon Monoxide
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