Results 31 to 40 of about 162,471 (236)

Global tropospheric ozone modelling : quantifying errors due to grid resolution. [PDF]

, 2006
Ozone production in global chemical models is dependent on model resolution because ozone chemistry is inherently nonlinear, the timescales for chemical production are short, and precursors are artificially distributed over the spatial scale of the model
Prather, Michael J., Wild, Oliver, Prather, Michael J, Oliver Wild, Michael J. Prather   +4 more
core   +5 more sources

Radiative forcing since preindustrial times due to ozone change in the troposphere and the lower stratosphere [PDF]

, 2006
Changes in atmospheric ozone have occurred since the preindustrial era as a result of increasing anthropogenic emissions. Within ACCENT, a European Network of Excellence, ozone changes between 1850 and 2000 are assessed for the troposphere and the lower ...
Isaksen, I S A, Mickley, L J, Prather, M J, Shine, K P, Sanderson, M G, Zeng, G, Sudo, K, Hauglustaine, D A, Mancini, E, Collins, W J, Lamarque, J F, Pyle, J A, Grewe, V, Ellingsen, K, Dentener, F J, Gohar, L K, Stevenson, D S, Iachetti, D, Wild, O, Pitari, G, Szopa, S, Myhre, G, Gauss, M   +22 more
core   +7 more sources

The underestimated role of stratosphere-to-troposphere transport on tropospheric ozone [PDF]

, 2018
Abstract. The atmospheric composition is strongly influenced by changing atmospheric dynamics, in potential relation to climate change. A prominent example is the doubling of the stratospheric ozone component at the summit station Zugspitze (2962 m a.s.l., Garmisch-Partenkirchen, Germany) between the mid-seventies and 2005, roughly from 11 ppb to 23 ...
Thomas Trickl, Hannes Vogelmann, Ludwig Ries, Hans-Eckhart Scheel, Michael Sprenger   +4 more
openaire   +2 more sources

Trends of ozone in the troposphere [PDF]

Geophysical Research Letters, 1998
Using a set of selected surface ozone (nine stations) and ozone vertical profile measurements (from six stations), we have documented changes in tropospheric ozone at a number of locations. From two stations at high northern hemisphere (NH) latitudes there has been a significant decline in ozone amounts throughout the troposphere since the early 1980s.
Oltmans, Samuel J., Lefohn, Allen S., Scheel, H. E., Harris, J. M., Levy, Hiram, Galbally, I. E., Brunke, E.-G., Meyer, C. P., Lathrop, J. A., Johnson, B. J., Shadwick, D. S., Cuevas Agulló, Emilio, Schmidlin, Frank J., Tarasick, D. W., Claude, H., Kerr, James B., Uchino, Osamu, Mohnen, Volker Armin   +17 more
openaire   +2 more sources

Formation of Ozone in the tropospheric

مجلة البحوث الأكاديمية, 2022
Tropospheric ozone (O3) is formed via transport from stratospheric O3 and by oxidation of carbon monoxide (CO) and volatile organic compounds (VOCs) in the presence of NOx (NO + NO2). In fact, presence of NOx is important in formation of O3. In the presence of VOCs and NOx, chlorine atoms also play a role in the formation of tropospheric O3. Monitoring
Abdelhamid A. Esbata, Gary W. vanLoon
openaire   +1 more source

Observed vertical distribution of tropospheric ozone during the Asian summertime monsoon [PDF]

, 2009
We characterize the horizontal and vertical distribution of tropospheric ozone measured by the Tropospheric Emission Spectrometer (TES) over North Africa, the Middle East, and Asia.
Jane Liu, Mark Parrington, Worden, John, Kulawik, Susan, Verma, Sunita, Dylan B. A. Jones, Liu, Jane, Worden, Helen, Jui-Lin F. Li, Thouret, Valerie, Kevin Bowman, Li, Jui-Lin F., Valérie Thouret, Helen Worden, Sunita Verma, Jones, Dylan B. A., Jonathan Jiang, Parrington, Mark, Bowman, Kevin, Jiang, Jonathan, John Worden, Beer, Reinhard, Reinhard Beer, Susan Kulawik, Stajner, Ivanka, Ivanka Stajner   +25 more
core   +1 more source

A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore–Washington, D.C. region [PDF]

Atmospheric Measurement Techniques, 2014
Tropospheric ozone profiles have been retrieved from the new ground-based National Aeronautics and Space Administration (NASA) Goddard Space Flight Center TROPospheric OZone DIfferential Absorption Lidar (GSFC TROPOZ DIAL) in Greenbelt, MD (38.99° N, 76 ...
J. T. Sullivan, T. J. McGee, G. K. Sumnicht, L. W. Twigg, R. M. Hoff   +4 more
doaj   +1 more source

Natural and anthropogenic influence on tropospheric ozone variability over the Tropical Atlantic unveiled by satellite, reanalyses and in situ observations [PDF]

Atmospheric Chemistry and Physics
Tropospheric ozone over the South and Tropical Atlantic plays an important role in the photochemistry and energy budget of the atmosphere. In this remote region, tropospheric ozone estimates from reanalysis datasets show the largest discrepancies.
S. Okamoto, S. Okamoto, J. Cuesta, G. Dufour, M. Eremenko, K. Miyazaki, C. Boonne, H. Tanimoto, J. Peischl, C. Thompson   +9 more
doaj   +1 more source

Tropospheric Ozone Assessment Report: Present-day tropospheric ozone distribution and trends relevant to vegetation [PDF]

Elementa: Science of the Anthropocene, 2018
This Tropospheric Ozone Assessment Report (TOAR) on the current state of knowledge of ozone metrics of relevance to vegetation (TOAR-Vegetation) reports on present-day global distribution of ozone at over 3300 vegetated sites and the long-term trends at nearly 1200 sites.
Mills, Gina, Pleijel, Håkan, Malley, Christopher S., Sinha, Baerbel, Cooper, Owen R., Schultz, Martin G., Neufeld, Howard S., Simpson, David, Sharps, Katrina, Feng, Zhaozhong, Gerosa, Giacomo, Harmens, Harry, Kobayashi, Kazuhiko, Saxena, Pallavi, Paoletti, Elena, Sinha, Vinayak, Xu, Xiaobin   +16 more
openaire   +7 more sources

Validation of Tropospheric Ozone from Satellite and Reanalysis Data Based on Ozonesondes Observations

Gaoyuan qixiang
Tropospheric ozone is an important air pollutant and greenhouse gas.It is harmful to human health and seriously harm the ecological environment.In this study， we use ozonesondes data from WOUDC （World Ozone and Ultraviolet Radiation Data Centre） during ...
Jingyi YANG, Wenshou TIAN, Jiali LUO, Jiakang DUAN, Xin HE   +4 more
doaj   +1 more source