Results 11 to 20 of about 7,074,149 (271)

Total column ozone in New Zealand and in the UK in the 1950s [PDF]

Atmospheric Chemistry and Physics, 2020
Abstract. Total column ozone measurements reach back almost a century. Historical column ozone data are important not only for obtaining a long-term perspective of changes of the ozone layer but arguably also as diagnostics of lower-stratospheric or tropopause-level flow in time periods of sparse upper-air observations. With the exception of a few high-
S. Brönnimann, S. Brönnimann, S. Nichol   +2 more
openaire   +6 more sources

1979-1999 satellite total ozone column measurements over West Africa

Annals of Geophysics, 2000
Total Ozone Mapping Spectrometer (TOMS) instruments have been flown on NASA/GSFC satellites for over 20 years. They provide near real-time ozone data for Atmospheric Science Research.
P. Di Carlo, F. Masci, V. Rizi, T. C. Chineke, M. Iarlori   +4 more
doaj   +5 more sources

Consistency of total column ozone measurements between the Brewer and Dobson spectroradiometers of the LKO Arosa and PMOD/WRC Davos [PDF]

Atmospheric Measurement Techniques, 2021
Total column ozone measured by Brewer and Dobson spectroradiometers at Arosa and Davos, Switzerland, have systematic seasonal variations of around 1.5 % using the standard operational data processing.
J. Gröbner, H. Schill, L. Egli, R. Stübi   +3 more
doaj   +1 more source

Record low ozone values over the Arctic in boreal spring 2020 [PDF]

Atmospheric Chemistry and Physics, 2021
Ozone data derived from the Tropospheric Monitoring Instrument (TROPOMI) sensor on board the Sentinel-5 Precursor satellite show exceptionally low total ozone columns in the polar region of the Northern Hemisphere (Arctic) in spring 2020.
M. Dameris, D. G. Loyola, M. Nützel, M. Coldewey-Egbers, C. Lerot, F. Romahn, M. van Roozendael   +6 more
doaj   +1 more source

Changes in the polar vortex: Effects on Antarctic total ozone observations at various stations [PDF]

, 2011
October mean total column ozone data from four Antarctic stations form the basis for understanding the evolution of the ozone hole since 1960. While these stations show similar emergence of the ozone hole from 1960 to 1980, the records are divergent in ...
Bodeker, G. E., Hassler, Birgit, Solomon, Susan, Young, P. J.   +3 more
core   +4 more sources

Chemical transport model ozone simulations for spring 2001 over the western Pacific : comparisons with TRACE-P lidar, ozonesondes, and Total Ozone Mapping Spectrometer columns [PDF]

, 2003
Two closely related chemical transport models (CTMs) employing the same high-resolution meteorological data (similar to180 km x similar to180 km x similar to600 m) from the European Centre for Medium-Range Weather Forecasts are used to simulate the ozone
Isaksen, I S A, Browell, E V, Prather, M J, Oltmans, S J, Wild, O, Akimoto, H, Sundet, J K   +6 more
core   +5 more sources

Kelvin waves in total column ozone [PDF]

Geophysical Research Letters, 1994
Tropical Kelvin waves have been observed previously in ozone mixing ratio data from the SBUV (Solar Backscatter Ultraviolet) and LIMS (Limb Infrared Monitor of the Stratosphere) instruments on board the Nimbus‐7 satellite. The present study investigates Kelvin wave features in total column ozone, using version 6 data from the Total Ozone Mapping ...
J. R. Ziemke, J. L. Stanford
openaire   +1 more source

Detecting the recovery of total column ozone [PDF]

Journal of Geophysical Research: Atmospheres, 2000
International agreements for the limitation of ozone‐depleting substances have already resulted in decreases in concentrations of some of these chemicals in the troposphere. Full compliance and understanding of all factors contributing to ozone depletion are still uncertain; however, reasonable expectations are for a gradual recovery of the ozone layer
Elizabeth C. Weatherhead, Gregory C. Reinsel, George C. Tiao, Charles H. Jackman, Lane Bishop, Stacey M. Hollandsworth Frith, John DeLuisi, Teddie Keller, Samuel J. Oltmans, Eric L. Fleming, Donald J. Wuebbles, James B. Kerr, Alvin J. Miller, Jay Herman, Richard McPeters, Ronald M. Nagatani, John E. Frederick   +16 more
openaire   +1 more source

Validation of the Aura Ozone Monitoring Instrument total column ozone product [PDF]

Journal of Geophysical Research: Atmospheres, 2008
This paper is an overview of the validation of the total column ozone data products from the Ozone Monitoring Instrument (OMI) on board the NASA EOS‐Aura satellite. OMI is an imaging UV/visible spectrometer that maps global ozone on a daily basis. There are two ozone products from OMI, one derived using the traditional TOMS retrieval algorithm and ...
McPeters, R.D., Kroon, M., Labow, G., Brinksma, E.J., Balis, D., Petropavlovskikh, I., Veefkind, J.P., Bhartia, P.K., Levelt, P.F.   +8 more
openaire   +3 more sources

Ozone Variability and Trend Estimates from 20-Years of Ground-Based and Satellite Observations at Irene Station, South Africa

Atmosphere, 2020
While the stratospheric ozone protects the biosphere against ultraviolet (UV) radiation, tropospheric ozone acts like a greenhouse gas and an indicator of anthropogenic pollution.
Hassan Bencherif, Abdoulwahab M. Toihir, Nkanyiso Mbatha, Venkataraman Sivakumar, David Jean du Preez, Nelson Bègue, Gerrie Coetzee   +6 more
doaj   +1 more source