SA54A:
Solar and Heliospheric Forcings and Their Effects on Climate II

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Session ID#: 18289

Session Description:
Understanding the effects of solar and heliospheric variability on climate is a fundamental step towards quantifying climate sensitivity to external forcings. Pathways through which solar and heliospheric forcings affect climate remain poorly established despite the efforts of the scientific community. Moreover, the relatively short satellite record hinders a clean separation of observed signals from internal climate variability. In this context, improved understanding of the whole atmospheric response to solar and heliospheric forcings through physical modelling and observational analysis are needed. This session will bring together recent advances in estimating the atmospheric response to short and long-term variability in solar and heliospheric forcings. Special emphasis will be placed on energetic particle precipitation and solar spectral irradiance variations over the 11-year solar cycle, and their influence on the thermal, dynamical, and chemical structure of the whole atmosphere. Abstracts covering any portion of the atmosphere or ocean responses to solar variability are welcome.
Primary Convener:  Gabriel Chiodo, ETH Swiss Federal Institute of Technology Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
Conveners:  Ethan D Peck, Columbia University of New York, Palisades, NY, United States and V Lynn Harvey, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
Chairs:  Gabriel Chiodo, ETH Swiss Federal Institute of Technology Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland and V Lynn Harvey, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
OSPA Liaison:  V Lynn Harvey, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
Co-Organized with:
SPA-Aeronomy, and Atmospheric Sciences

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • SH - SPA-Solar and Heliospheric Physics
  • SM - SPA-Magnetospheric Physics

Proposed Co-Organized Session with:
  • A - Atmospheric Sciences
Index Terms:

0340 Middle atmosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
1650 Solar variability [GLOBAL CHANGE]
7514 Energetic particles [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]
7538 Solar irradiance [SOLAR PHYSICS, ASTROPHYSICS, AND ASTRONOMY]

Abstracts Submitted to this Session:

Influence of Solar Variability on the North Atlantic / European Sector. (Invited) (141513)
Lesley J Gray, University of Oxford, Department of Physics, AOPP, Oxford, United Kingdom
The New Climate Data Record of Solar Irradiance: Comparisons with Observations and Solar Irradiance Models Over a Range of Solar Activity Time Scales (162982)
Odele Coddington1, Judith Lean2, Peter Pilewskie1,3, Erik C Richard1,4, Martin A Snow4,5, Greg Kopp5,6 and Chris Lindholm5,7, (1)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (2)US Naval Research Laboratory, Washington, DC, United States, (3)LASP, University of Colorado, Boulder, United States, (4)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (5)University of Colorado, Boulder, CO, United States, (6)Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, United States, (7)Laboratory for Atmospheric and Space Physics, Boulder, United States
Comparison of Model and Observations of Middle Atmospheric HOx Response to Solar 27-day Cycles: Quantifying Model Uncertainties due to Photochemistry (183498)
Shuhui Wang, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, King-Fai Li, University of Washington, Department of Applied Mathematics, Seattle, WA, United States, Run-Lie Shia, California Institute of Technology, Pasadena, CA, United States, Yuk L Yung, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States and Stanley P Sander, JPL/NASA/Caltech, Pasadena, CA, United States
Aeronomic Impacts of a Revision to the Solar Irradiance Forcing for CMIP6 (150550)
Daniel Robert Marsh, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States and Gabriel Chiodo, ETH Swiss Federal Institute of Technology Zurich, Institute for Atmospheric and Climate Science, Zurich, Switzerland
Atmospheric Effects of Energetic Electron Precipitation (Invited) (150717)
Cora E Randall1, V Lynn Harvey2, Ethan D Peck3, Joshua Pettit4, Charles Bardeen5, Douglas Edward Kinnison5 and Daniel Robert Marsh6, (1)Univ Colorado, Boulder, CO, United States, (2)Laboratory for Atmospheric and Space Physics, Boulder, United States, (3)Columbia University of New York, Palisades, NY, United States, (4)University of Colorado, Atmospheric and Oceanic Science, Boulder, CO, United States, (5)National Center for Atmospheric Research, Boulder, United States, (6)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Long-term atmospheric effects of medium-energy electron precipitation from chemistry-climate modelling (172896)
Monika Ewa Szelag1, Pekka T Verronen1, Daniel Robert Marsh2, Annika Seppala1 and Niilo Kalakoski1, (1)Finnish Meteorological Institute, Helsinki, Finland, (2)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Ground-based Observations and Atmospheric Modelling of Energetic Electron Precipitation Effects on Antarctic Mesospheric Chemistry (157767)
David Newnham1, Mark A. Clilverd1, Richard Bertram Horne1, Craig J Rodger2, Annika Seppala1,3, Pekka T Verronen3, Monika Ewa Szelag3, Daniel Robert Marsh4, Koen Hendrickx5, Linda Susanne Megner5, Tamas Kovacs6, Wuhu Feng6 and John M C Plane7, (1)British Antarctic Survey, Cambridge, United Kingdom, (2)University of Otago, Department of Physics, Dunedin, New Zealand, (3)Finnish Meteorological Institute, Helsinki, Finland, (4)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (5)Stockholm University, Stockholm, Sweden, (6)University of Leeds, School of Chemistry, Leeds, United Kingdom, (7)University of Leeds, School of Chemistry, Leeds, LS2, United Kingdom
Atmospheric Effects from the September 2005 Solar Flares and Solar Proton Event (149032)
Joshua Pettit, University of Colorado, Atmospheric and Oceanic Science, Boulder, CO, United States, Cora E Randall, University of Colorado at Boulder, Boulder, CO, United States, Daniel Robert Marsh, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States and Charles Bardeen, National Center for Atmospheric Research, Boulder, United States

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