Search Results - "TARASICK, D. W"
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Time-varying trends from Arctic ozonesonde time series in the years 1994–2022
Published in Scientific reports (12-11-2024)“…Although evidence of recovery in Antarctic stratospheric ozone has been found, evidence of recovery in Arctic ozone is still elusive, even though 25 years have…”
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Recent tropospheric ozone changes – A pattern dominated by slow or no growth
Published in Atmospheric environment (1994) (01-03-2013)“…Longer-term (i.e., 20–40 years) tropospheric ozone (O3) time series obtained from surface and ozonesonde observations have been analyzed to assess possible…”
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Influence of transport and ocean ice extent on biogenic aerosol sulfur in the Arctic atmosphere
Published in Journal of Geophysical Research: Atmospheres (27-06-2012)“…The recent decline in sea ice cover in the Arctic Ocean could affect the regional radiative forcing via changes in sea ice–atmosphere exchange of dimethyl…”
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A re-evaluated Canadian ozonesonde record: measurements of the vertical distribution of ozone over Canada from 1966 to 2013
Published in Atmospheric measurement techniques (25-01-2016)“…In Canada routine ozone soundings have been carried at Resolute Bay since 1966, making this record the longest in the world. Similar measurements started in…”
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A global tropospheric ozone climatology from trajectory-mapped ozone soundings
Published in Atmospheric chemistry and physics (04-11-2013)“…A global three-dimensional (i.e. latitude, longitude, altitude) climatology of tropospheric ozone is derived from the ozone sounding record by trajectory…”
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On the structural changes in the Brewer-Dobson circulation after 2000
Published in Atmospheric chemistry and physics (28-04-2011)“…In this paper we present evidence that the observed increase in tropical upwelling after the year 2000 may be attributed to a change in the Brewer-Dobson…”
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Impacts of midlatitude precursor emissions and local photochemistry on ozone abundances in the Arctic
Published in Journal of Geophysical Research: Atmospheres (16-01-2012)“…We assess the impact of transport of pollution from midlatitudes on the abundance of ozone in the Arctic in summer 2006 using the GEOS‐Chem global chemical…”
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A global ozone climatology from ozone soundings via trajectory mapping: a stratospheric perspective
Published in Atmospheric chemistry and physics (25-11-2013)“…This study explores a domain-filling trajectory approach to generate a global ozone climatology from relatively sparse ozonesonde data. Global ozone soundings…”
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The influence of boreal biomass burning emissions on the distribution of tropospheric ozone over North America and the North Atlantic during 2010
Published in Atmospheric chemistry and physics (21-02-2012)“…We have analysed the sensitivity of the tropospheric ozone distribution over North America and the North Atlantic to boreal biomass burning emissions during…”
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Measurement of western U.S. baseline ozone from the surface to the tropopause and assessment of downwind impact regions
Published in Journal of Geophysical Research: Atmospheres (18-11-2011)“…Since 1997, baseline ozone monitoring from the surface to the tropopause along the U.S. west coast has been limited to the weekly ozonesondes from Trinidad…”
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High-resolution tropospheric ozone fields for INTEX and ARCTAS from IONS ozonesondes
Published in Journal of Geophysical Research (27-10-2010)“…The IONS‐04, IONS‐06, and ARC‐IONS ozone sounding campaigns over North America in 2004, 2006, and 2008 obtained approximately 1400 profiles, in five series of…”
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Estimating the summertime tropospheric ozone distribution over North America through assimilation of observations from the Tropospheric Emission Spectrometer
Published in Journal of Geophysical Research - Atmospheres (27-09-2008)“…We assimilate ozone and CO retrievals from the Tropospheric Emission Spectrometer (TES) for July and August 2006 into the GEOS‐Chem and AM2‐Chem models. We…”
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Quantifying the impact of BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites (BORTAS) experiment: design, execution and science overview
Published in Atmospheric chemistry and physics (01-07-2013)“…We describe the design and execution of the BORTAS (Quantifying the impact of BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and…”
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Interannual variability of ozone and carbon monoxide at the Whistler high elevation site: 2002–2006
Published in Atmospheric chemistry and physics (01-01-2011)“…In spring 2002, an atmospheric measurement site was established at the peak of Whistler Mountain in British Columbia, Canada to measure trace gases, particle…”
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Detection of stratospheric ozone intrusions by windprofiler radars
Published in Nature (08-11-2007)“…Stratospheric ozone attenuates harmful ultraviolet radiation and protects the Earth's biosphere. Ozone is also of fundamental importance for the chemistry of…”
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Estimating ozone variability and instrument uncertainties from SBUV(/2), ozonesonde, Umkehr, and SAGE II measurements: Short-term variations
Published in Journal of Geophysical Research - Atmospheres (27-01-2006)“…Coincident ozone measurements by the Solar Backscattered Ultra Violet (SBUV) and Stratospheric Aerosol and Gas Experiment (SAGE) II instruments and by…”
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Evidence for a recurring eastern North America upper tropospheric ozone maximum during summer
Published in Journal of Geophysical Research - Atmospheres (16-12-2007)“…Daily ozonesondes were launched from 14 North American sites during August 2006, providing the best set of free tropospheric ozone measurements ever gathered…”
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Past changes in the vertical distribution of ozone – Part 1: Measurement techniques, uncertainties and availability
Published in Atmospheric measurement techniques (21-05-2014)“…Peak stratospheric chlorofluorocarbon (CFC) and other ozone depleting substance (ODS) concentrations were reached in the mid- to late 1990s. Detection and…”
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Changes in the vertical distribution of ozone over Canada from ozonesondes: 1980–2001
Published in Journal of Geophysical Research - Atmospheres (27-01-2005)“…Measurements of the vertical profile of ozone concentration using balloon‐borne ECC ozonesondes have been made weekly since 1980 at several sites in Canada…”
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Impact of the assimilation of ozone from the Tropospheric Emission Spectrometer on surface ozone across North America
Published in Geophysical research letters (01-02-2009)“…We examine the impact of assimilating ozone observations from the Tropospheric Emission Spectrometer (TES) on North American surface ozone abundances in the…”
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