A062:
Long-term Ozone Trends and Estimation of their Associated Uncertainties





Session ID#: 25647

Session Description:
This session will address uncertainties in trends derived from long-term ozone records, including data produced through merging multiple data sources that have been combined to improve spatial or temporal sampling, or to extend the record in time. Relative offsets and drifts between measurements used in the data record introduce uncertainties over that of the measurement error for each individual instrument. Furthermore, individual instrumental records vary in sensitivity to aerosol interference, sampling regime, spatial resolution, etc. All of these issues can introduce additional errors currently not assessed in analyses of long-term trends from climate data records, thus complicating attempts to confidently quantify long-term changes. This session will discuss prospective approaches for estimating the uncertainties and drifts for merged ozone data records, and propagation of errors in trend calculations. This session will focus on stratospheric and tropospheric ozone trends, and the uncertainties associated with statistical model fits and measurements uncertainties.
Primary Convener:  Irina V Petropavlovskikh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States
Conveners:  Sophie Godin-Beekman, LATMOS/IPSL/CNRS/UVSQ, Guyancourt, France, Robert P Damadeo, NASA Langley Research Center, Hampton, VA, United States and Karen Hepler Rosenlof, Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States
Index Terms:

0394 Instruments and techniques [ATMOSPHERIC COMPOSITION AND STRUCTURE]
1610 Atmosphere [GLOBAL CHANGE]
1616 Climate variability [GLOBAL CHANGE]
1910 Data assimilation, integration and fusion [INFORMATICS]

Abstracts Submitted to this Session:

Neil Richard Peter Harris, Cranfield University, Cranfield, United Kingdom
Anne M Thompson1, Jacqulyn C Witte2, Bryan Johnson3, Herman G J Smit4, Ryan M Stauffer1 and SHADOZ Team, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)Science Systems and Applications, Inc., Lanham, MD, United States, (3)NOAA Boulder, ESRL/GMD, Boulder, CO, United States, (4)Research Centre Juelich GmbH, Juelich, Germany
Irina V Petropavlovskikh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Daan Hubert, Belgian Institute for Space Aeronomy, Brussels, Belgium, Sophie Godin-Beekman, LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, Robert P Damadeo, NASA Langley Research Center, Hampton, VA, United States, Viktoria Sofieva, Finnish Meteorological Institute, Helsinki, Finland and Birgit Hassler, Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
Robert P Damadeo1, Joseph M Zawodny1, Ellis E Remsberg2 and Kaley A Walker3, (1)NASA Langley Research Center, Hampton, VA, United States, (2)NASA Langley, Yorktown, VA, United States, (3)University of Toronto, Toronto, ON, Canada
Jeannette Wild, NOAA College Park, College Park, MD, United States and Craig S Long, NOAA Center for Weather and Climate Prediction, Climate Prediction Center, college park, MD, United States
Daan Hubert1, Jean-Christopher Lambert1, Tijl Verhoelst1, Arno Keppens1, Jose Granville1, Pawan K Bhartia2, Adam E Bourassa3, Robert P Damadeo4, D A Degenstein3, Lucien Froidevaux5, Sophie Godin-Beekmann6, Bryan Johnson7, Niklaus Kaempfer8, Thierry Leblanc9, Günter Lichtenberg10, Donal P Murtagh11, Eliane Maillard-Barras12, Hideaki Nakane13, Gerald E Nedoluha14, Thierry Portafaix15, Richard Querel16, Piera Raspollini17, James M Russell III18, J. Salvador19, Herman G J Smit20, Viktoria Sofieva21, Kerstin Stebel22, Wolfgang Steinbrecht23, Rene Stubi24, Daan P. J. Swart25, David Walter Tarasick26, Anne M Thompson2, Roeland Van Malderen27, Thomas von Clarmann28, Peter von der Gathen29, Kaley A Walker30, Mark Weber31, Jacqulyn C Witte32, Elian Wolfram33 and Joseph M Zawodny4, (1)Royal Belgian Institute for Space Aeronomy, Brussels, Belgium, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)University of Saskatchewan, Saskatoon, SK, Canada, (4)NASA Langley Research Center, Hampton, VA, United States, (5)JPL, Pasadena, CA, United States, (6)CNRS, LATMOS, Paris 05, France, (7)NOAA Boulder, ESRL/GMD, Boulder, CO, United States, (8)Oeschger Center for Climate Change Research and Institute of Applied Physics, University of Bern, Bern, Switzerland, (9)California Institute of Technology, Pasadena, CA, United States, (10)German Aerospace Center DLR - IMF, Oberpfaffenhofen, Germany, (11)Chalmers University, Göteburg, Sweden, (12)Federal Office of Meteorology and Climatology, MeteoSwiss, Payerne, Switzerland, (13)Kochi University, Kochi, Japan, (14)Naval Research Lab, Washington, DC, United States, (15)University of La Reunion, LACy, St Denis, Reunion, (16)NIWA National Institute of Water and Atmospheric Research, Lauder, New Zealand, (17)Institute of Applied Physics "Nello Carrara'' - National Research Council of Italy, Florence, Italy, (18)Hampton University, Department of Atmospheric and Planetary Science, Hampton, VA, United States, (19)CEILAP, CITEDEF, CONICET, Buenos Aires, Argentina, (20)Research Centre Juelich GmbH, Juelich, Germany, (21)Finnish Meteorological Institute, Helsinki, Finland, (22)Norwegian Institute for Air Research, ATMOS, Kjeller, Norway, (23)Deutscher Wetterdienst, Lindenberg, Germany, (24)MeteoSwiss Federal Office of Meteorology and Climatology, Zurich, Switzerland, (25)National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands, (26)Environment Canada Toronto, Downsview, ON, Canada, (27)Royal Meteorological Institute, Brussel, Belgium, (28)Karlsruhe Institute of Technology, Karlsruhe, Germany, (29)Alfred Wegener Institute for Polar and Marine Research, Climate Sciences, Atmospheric Physics, Potsdam, Germany, (30)University of Toronto, Toronto, ON, Canada, (31)University of Bremen, Bremen, Germany, (32)Science Systems and Applications, Inc., Lanham, MD, United States, (33)CITEDEF, Buenos Aires, Argentina
Stacey M Frith, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Richard S Stolarski, Johns Hopkins University, Baltimore, MD, United States, Richard D McPeters, NASA Goddard SFC, Greenbelt, MD, United States and Natalya A Kramarova, NASA GSFC, Greenbelt, MD, United States
Hyun-Chae Jung, Chonbuk National University, Jeonju, Korea, Republic of (South), Byung-Kwon Moon, Chonbuk National University, moonbk@jbnu.ac.kr, Jeonju, Korea, Republic of (South) and Jieun Wie, Chonbuk National University, Jeonju, South Korea
Herman G J Smit, Research Centre Juelich GmbH, Juelich, Germany, David Walter Tarasick, Environment Canada Toronto, Downsview, ON, Canada, Anne M Thompson, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Gary A Morris, St. Edward's University, School of Natural Sciences, Austin, TX, United States, Jacqulyn C Witte, Science Systems and Applications, Inc., Lanham, MD, United States and Jonathan Davies, Environment Canada Toronto, Toronto, ON, Canada
Viktoria Sofieva1, Erkki Kyrölä1, Marko Laine1, Johanna Tamminen1, D A Degenstein2, Adam E Bourassa2, Chris Roth2, Daniel Zawada2, Mark Weber3, Alexej Rozanov3, Nabiz Rahpoe3, Gabriele P Stiller4, Alexandra Laeng4, Thomas von Clarmann4, Kaley A Walker5, Patrick Sheese6, Daan Hubert7, Michael Van Roozendael7, Claus Zehner8, Robert P Damadeo9, Joseph M Zawodny9, Natalya A Kramarova10 and Pawan K Bhartia11, (1)Finnish Meteorological Institute, Helsinki, Finland, (2)University of Saskatchewan, Saskatoon, SK, Canada, (3)University of Bremen, Bremen, Germany, (4)Karlsruhe Institute of Technology, Karlsruhe, Germany, (5)University of Toronto, Toronto, ON, Canada, (6)University of Toronto, Department of Physics, Toronto, ON, Canada, (7)Royal Belgian Institute for Space Aeronomy, Brussels, Belgium, (8)European Space Research Institute, Frascati, Italy, (9)NASA Langley Research Center, Hampton, VA, United States, (10)NASA GSFC, Greenbelt, MD, United States, (11)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Christos S Zerefos1, John N Kapsomenakis1, Kostas Eleftheratos2, Kleareti Tourpali3, Irina V Petropavlovskikh4, Daan Hubert5, Sophie Godin-Beekmann6, Wolfgang Steinbrecht7, Stacey M Frith8 and Viktoria Sofieva9, (1)Rsrch Cnter Atmos Phy & Clim, Academy of Athens, Athens, Greece, (2)Laboratory of Climatology and Atmospheric Environment, University of Athens, Athens, Greece, (3)Aristotle University of Thessaloniki, Thessaloniki, Greece, (4)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (5)Belgian Institute for Space Aeronomy, Brussels, Belgium, (6)CNRS, LATMOS, Paris 05, France, (7)Deutscher Wetterdienst, Lindenberg, Germany, (8)NASA Goddard SFC, Greenbelt, MD, United States, (9)Finnish Meteorological Institute, Helsinki, Finland
Huiting Mao1, Deborah F McGlynn1, Zhaohua Wu2 and Barkley C Sive3, (1)SUNY-ESF, Chemistry, Syracuse, NY, United States, (2)Florida State University, Tallahassee, FL, United States, (3)National Park Service Denver, Denver, CO, United States
Alexandra Laeng1, Thomas von Clarmann1, Gabriele P Stiller2, Natalya A Kramarova3, Kaley A Walker4, Joseph M Zawodny5 and Johannes Plieninger1, (1)Karlsruhe Institute of Technology, Karlsruhe, Germany, (2)KIT, Eggenstein-Leopoldsh, Germany, (3)NASA GSFC, Greenbelt, MD, United States, (4)University of Toronto, Toronto, ON, Canada, (5)NASA Langley Research Center, Hampton, VA, United States
D A Degenstein1, Adam E Bourassa2, Daniel Zawada2, Chris Roth2 and Chris A McLinden3, (1)University of Saskatchewan, Institute of Space and Atmospheric Studies, Saskatoon, SK, Canada, (2)University of Saskatchewan, Saskatoon, SK, Canada, (3)Environment Canada Toronto, Toronto, ON, Canada