World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Global Change Induced Trends in Ion Composition of the Troposphere to the Lower Thermosphere : Volume 26, Issue 5 (28/05/2008)

By Beig, G.

Click here to view

Book Id: WPLBN0004001720
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Global Change Induced Trends in Ion Composition of the Troposphere to the Lower Thermosphere : Volume 26, Issue 5 (28/05/2008)  
Author: Beig, G.
Volume: Vol. 26, Issue 5
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Beig, G. (2008). Global Change Induced Trends in Ion Composition of the Troposphere to the Lower Thermosphere : Volume 26, Issue 5 (28/05/2008). Retrieved from http://members.worldlibrary.net/


Description
Description: Indian Institute of tropical Meteorology, Pashan, Pune-411008, India. In this paper a brief overview of the changes in atmospheric ion compositions driven by the human-induced changes in related neutral species, and temperature from the troposphere to lower thermosphere has been made. It is found that ionic compositions undergo significant variations. The variations calculated for the double-CO2 scenario are both long-term and permanent in nature. Major neutrals which take part in the lower and middle atmospheric ion chemical schemes and undergo significant changes due to anthropogenic activities are: O, O2, H2O, NO, acetonitrile, pyridinated compounds, acetone and aerosol. The concentration of positive ion/electron density does not change appreciably in the middle atmosphere but indicates a marginal decrease above about 75 km until about 85 km, above which the magnitude of negative trend decreases and becomes negligible at 93 km. Acetonitrile cluster ions in the upper stratosphere are likely to increase, whereas NO+ and NO+(H2O) in the mesosphere and lower thermosphere (MLT) region are expected to decrease for the double CO2 scenario. It is also found that the atmospheric density of pyridinated cluster ions is fast rising in the troposphere.

Summary
Global change induced trends in ion composition of the troposphere to the lower thermosphere

Excerpt
Akmaev, R. A. and Fomichev, V. I.: Cooling of the mesosphere and lower thermosphere due to doubling of CO2, Ann. Geophys., 16, 1501–1512, 1998.; Arijs, E. and Brasseur, G.: Acetonitrile in the stratosphere and implications for positive ion composition, J. Geophys. Res., 91, 4003–4016, 1986.; Beig, G.: The Relative Importance of Solar Activity and Anthropogenic Influences on the Ion Composition, Temperature and Associated Neutrals of the Middle Atmosphere, J. Geophys. Res., 105, 19 841–19 856, 2000.; Beig, G. and Brasseur, G.: Anthropogenic perturbations of tropospheric ions, Geophys. Res. Lett., 26, 1303–1306, 1999.; Beig, G. and Brasseur, G.: Model of Tropospheric Ion Composition: A First Attempt, J. Geophys. Res., 105, 22 671–22 684, 2000.; Beig, G.: Trends in the mesopause region temperature and our present understanding – an update, Phys. Chem. Earth, 31, 3–9, doi:10.1016/j.pce.2005.03.007, 2006.; Beig, G. and Mitra, A. P.: Atmospheric and ionospheric response to trace gas perturbations through the ice age to the next century in the middle atmosphere, part I – Chemical composition and thermal structure, J. Atmos. Sol. Terr. Phys., 59, 1245–1259, 1997a.; Beig, G. and Mitra, A. P.: Atmospheric and ionospheric response to trace gas perturbations through the ice age to the next century in the middle atmosphere, part II – Ionization, J. Atmos. Sol. Terr. Phys., 59, 1261–1275, 1997b.; Beig, G., Walters, S., and Brasseur, G.: A two-dimensional model of ion composition in the stratosphere, 1, Positive ions, J. Geophys. Res., 98, 12 767–12 773, 1993.; Beig, G., Keckhut, P., Lowe, R. P., Roble, R., Mlynczak, M. G., Scheer, J., Fomichev, V., Offermann, D., French, W. J. R., Shepherd, M. G., Semenov, A. I., Remsberg, E. E., She, C. Y., Lübken, F. J., Bremer, J., Clemesha, B. R., Stegman, J., Sigernes, F., and Fadnavis, S.: Review of Mesospheric Temperature Trends, Rev. Geophys., 41(4), 1-1–1-41, 1015, doi:10.1029/2002RG000121, 2003.; Berger, U. and Dameris, M.: Cooling of the upper atmosphere due to CO2 increases: A model study, Ann. Geophys., 11, 809–819, 1993.; Chakrabarty, D. K.: On long-term changes of electron density in the upper mesosphere, Adv. Space Res., 35(8), 1411–1415, 2005.; Chakrabarty, D. K., Chakrabarty, P., and Witt, G.: J. Atmos. Terr. Phys., 40, 437–443, 1978.; Curtis, A. R. and Goody, R. M.: Thermal radiation in the upper atmosphere, Proc. R. Soc. London, Ser. A, 236, 193–206, 1956.; Danilov, A. D.: Long-term changes of the mesosphere and lower thermosphere temperature and composition, Adv. Space Res., 20, 2137– 2147, 1997.; Danilov, A. D. and Smirnova, N. V.: Long-term trends of the ion composition in the E-region, Geomagn. Aeron., 37, 35–46, 1997.; Datta, J., Revankar, C. P., Chakravarty, S. C., and Mitra, A. P.: Influence of aerosols on middle atmospheric conductivities, Phys. Scr., 36, 705–710, 1987.; Eisele, F. L.: Direct tropospheric ion sampling and mass identification, Int. J. Mass Spectrom. Ion Phys., 54, 119–126, 1983.; Eisele, F. L.: Identification of tropospheric ions, J. Geophys. Res., 91, 7897–7906, 1986.; Eisele, F. L.: First tandem mass spectrometric measurement of tropospheric ions, J. Geophys. Res., 93, 716–724, 1988.; Ferguson, E. E., Fehsenfeld, F. C., and Albritton, D. L.: Ion chemistry of the Earth's atmosphere, in: Gas Phase Ion Chemistry, edited by: Bowers, M. T., vol. 1, pp. 45–82, Academic Press, New York, 1979.; Graedel, T. E.: Chemical Compounds in the Atmosphere, Academic, Orlando, Fla., 1978.; Hamm, S. and Warneck, P.: The interhemispheric distribution and the budget of acetonitrile in the troposphere, J. Geophys. Res., 95, 20 593–20 606, 1990.; Garcia, R. R., Marsh, D. R., Kinnison, D. E., Bo

 

Click To View

Additional Books


  • Tailward Propagation of Pi2 Waves in the... (by )
  • Electric Field Measurements in a Nlc/Pms... (by )
  • Lhr Band Emissions at Mid-latitude and T... (by )
  • French Participation in the Internationa... (by )
  • Wind Patterns Associated with the Develo... (by )
  • First Results from the Hot Plasma Instru... (by )
  • Variability of Three-dimensional Sea Bre... (by )
  • New Electron Energy Transfer and Cooling... (by )
  • Annual and Seasonal Variations in the Lo... (by )
  • Quasi-16-day Periodic Meridional Movemen... (by )
  • Multi-instrument Mapping of the Small-sc... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.