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Thursday, May 7, 2020 | History

2 edition of Pollution of the Arctic troposphere found in the catalog.

Pollution of the Arctic troposphere

Pollution of the Arctic troposphere

Northeast Greenland, 1990-1996

  • 379 Want to read
  • 21 Currently reading

Published by National Environmental Research Institute in Roskilde, Denmark .
Written in English

    Subjects:
  • Air -- Pollution -- Arctic regions -- Meteorological aspects.,
  • Air -- Pollution -- Arctic regions.,
  • Environmental impact analysis -- Greenland.,
  • Troposphere -- Environmental aspects -- Greenland.

  • Edition Notes

    Includes bibliographical references.

    StatementNiels Zeuthen Heidam ... [et al.].
    SeriesNERI technical report -- no. 221, Faglig rapport fra DMU -- nr. 221
    ContributionsHeidam, Niels Zeuthen., Danmarks miljøundersøgelser.
    Classifications
    LC ClassificationsTD883.7.A68 P67 1998
    The Physical Object
    Pagination58 p. :
    Number of Pages58
    ID Numbers
    Open LibraryOL18792698M
    ISBN 108777723686

    smaller than over Eurasia for transport to the Arctic, showing that foreign continents have a much smaller potential to pollute the Antarctic than the Arctic troposphere. Emission sensitivities and derived black carbon (BC) source contributions over South America, Africa, and Australia are substantially (a factor 10 for Africa) larger in winter. Adam P. Showman, Timothy E. Dowling, in Encyclopedia of the Solar System (Third Edition), Troposphere. The troposphere is the lowest layer of the atmosphere, characterized by a temperature that decreases with altitude (Figure ).The top of the troposphere is called the tropopause, which occurs at an altitude of 18 km at the equator but only 8 km at the poles (the .

    One of the main pollutants present in the troposphere are the ozone precursors, which is a group of pollutants, primarily generated during the combustion of fossil fuels. Reaction with daylight ultraviolet (UV) rays and these precursors create ground .   Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) addresses the need to better understand the Arctic atmospheric composition and climate. ) focuses on Mexico City and Asian pollution outflow. INtercontinental Transport EXperiment (June - August, ) An integrated atmospheric chemistry field.

    Start studying Air Pollution in the Troposphere. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ENVIRONMENTAL AND ECOLOGICAL CHEMISTRY – Vol. I - Tropospheric Ozone Pollution - Karl Heinz Becker, Ian Barnes ©Encyclopedia of Life Support Systems (EOLSS) nitrogen oxides dominate over other sources, such as the eastern U.S. and western Europe, show a marked increase in tropospheric ozone in the northern hemisphere.


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Pollution of the Arctic troposphere Download PDF EPUB FB2

Contaminating the Arctic. Our perception of the Arctic region is that its distance from industrial centers keeps it pristine and clear from the impact of pollution.

However, through a process known as transboundary pollution, the Arctic is the recipient of contaminants whose sources are thousands of miles away.

Introduction. Arctic ecosystems, climate, and societies are affected by air pollution from both remote and local sources.

However, because both the environment and economy of the Arctic are rapidly changing, Arctic air pollution is influenced by a complex web of environmental and atmospheric feedbacks and socio-economic by: Pollution in the Arctic Ocean is primarily the result of economic activities carried out on land – such as industrial development in the Arctic region, northern rivers, and the effects of military activities, particularly nuclear activity – as well as the influx of pollutants from other regions of the world.

[citation needed] However, the Arctic Ocean remains relatively clean compared to. Abstract. The chemical composition of the troposphere (0 to ~8 km above msl) in the Arctic is distinctly different than it is in the Antarctic.

As pointed out in previous reviews (Barrie, ; Barrie et al, ; Barrie, ; Barrie, ), the Arctic is surrounded by populated continents from which pollution is released to the atmosphere and is transported readily to the by: The Arctic troposphere (0 to ca.

8 km) plays an important role in environmental concerns for global change. It is a unique chemical reactor influenced by human activity and the Arctic ocean. It is surrounded by industrialized continents that in winter contribute gaseous and particulate pollution (Arctic haze). changes in the circulation of the lower troposphere cause large changes in pathways of pollutant transport.

For example, Barrie [] argues that the maximum transport to the Arctic takes place in winter, while in summer this transport is much slower. In particular, as concluded from studies of Arctic Haze [e.g., Raatz and Shaw, ; Barrie. Long­range transport of pollution to the Arctic The arctic troposphere in winter­spring is heavily polluted by long­range transport from northern mid­latitudes continents.

This pollution has a number of environmental consequences. Investigations of pollutants in Greenland during the past fifteen years show that the troposphere is burdened with high levels of trans-boundary pollution.

The major anthropogenic contributors to this “Arctic haze” are central Europe, and northern Russia. Jaffe, D.A., Local sources of pollution in the Arctic: From Prudhoe Bay to the Taz Peninsula in Pollution of the Arctic Atmosphere, W.T.

Sturges (Ed.), Elsevier, New Cited by: in the Arctic free troposphere [Dibb et al., ; Allen et al., ]. At the same time, the frequency of stratosphere-troposphere-transport events reaching the lower troposphere in the Arctic is low [James et al., ; Sprenger and Wernli, ], and their influence on surface ozone at Alert is also small [Dibb et al., ].

Using global inventories of pollution sources, they simulate air pollution plumes so that satellites can observe what happens when these modeled plumes interact with Arctic clouds. The model allowed the researchers to study air pollution and clouds at the same time and place and also take into account the meteorological conditions.

Impact of Asian and European Emissions on Arctic Ozone Fractional contribution to ozone above Ny-Alesund in • In summer Asian pollution is lofted to the middle and upper troposphere in the Arctic • The impact of European emissions at Ny-Alesund is greatest in the lower troposphere.

The contribution of specific regions of the Northern Hemisphere to the mercury pollution of the Arctic environment is shown in Figure 1. The most significant contribution is.

The troposphere is the layer where most of the world's weather takes place. Since temperature decreases with altitude in the troposphere, warm air near the surface of the Earth can readily rise, being less dense than the colder air above it. In fact air molecules can travel to the top of the troposphere and back down again in a just a few days.

Arctic Research of the Composition of the Troposphere from Aircraft and Satellites ARCTAS Coordinated aircraft campaign (NASA + NOAA + DOE + Europeans + ) Simultaneous intensive surface sampling Polar‐orbiting satellites, especially AIRS, provided continuous satellite data.

Modeling the Impact of Long-range Transport of Pollution on the Arctic Troposphere Dylan Jones Department of Physics (Measurement Of Pollution In The Troposphere) Impact of Boreal Fires on O3 and CO in the Arctic 5-day back trajectories, starting from the.

Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) next planned mission of the NASA Tropospheric Chemistry Program ARCTAS to be conducted in spring and summer (two phases) as part of the POLARCAT program during the International Polar Year (IPY).

MOPITT-A (Measurements Of Pollution In The Troposphere-Airborne) is a new correlation radiometer that operates from the superpod of an ER-2 aircraft. The instrument is equipped with four channels, three of which are sensitive to tropospheric carbon monoxide.

The fourth channel is sensitive to methane. @article{osti_, title = {Long-range tropospheric transport of pollution aerosols into the Alaskan Arctic}, author = {Raatz, W.E.

and Shaw, G.E.}, abstractNote = {Noncrustal vanadium and manganese are used as chemical tracers for pollution-derived aerosols (collected over a period of four years in the near-surface air at Barrow, Alaska), in order to investigate.

Arctic and sub-Arctic region. Using a number of marker tracers, we distinguish various air masses from the back-ground troposphere and examine their contributions to NOx, O3, and O3 production in the Arctic troposphere.

The back-ground Arctic troposphere has a mean O3 of ∼60ppbv and NOx of ∼25pptv throughout spring and summer with CO. THE POLLUTION METEOROLOGY OF THE ARCTIC The Arctic air mass is a unique meteorological feature of the troposphere characterized by: (i) sub- zero temperatures much of the year; (ii) little precipi- tation (most of which falls during the warmer half of the year); (iii) stable stratification that prevents strong vertical mixing; and (iv) low Cited by: Get this from a library!

The Tropospheric chemistry of ozone in the polar regions. [Hiromi Niki; K H Becker; North Atlantic Treaty Organization.

Scientific Affairs Division.;] -- This book is to facilitate interactions among researchers in the key areas of field measurements, laboratory studies and modeling who have experience in air chemistry of the continental lower.REVIEW Arctic Air Pollution: Origins and Impacts Kathy S.

Law1 and Andreas Stohl2 Notable warming trends have been observed in the Arctic. Although increased human-induced emissions of long-lived greenhouse gases are certainly the main driving factor, air pollutants, such as aerosols and ozone, are also important.