Saturday, November 14, 2015

Solar-climate related sessions in EGU 2016

From now, up until 13 January 2016, you can submit your abstract for the upcoming EGU General Assembly (EGU 2016).

Solar Irradiance variability and its effects on Climate (co-organized)

Convener: Martin Snow 
Co-Conveners: K. Tourpali , Stergios Misios

Variability of the incoming solar irradiance and its effects on climate have received wide attention over the recent years. There is a continuous effort to reduce uncertainties in measurements of the total and spectral solar spectral irradiances, physical and empirical modelling have undergone considerable progress and novel statistical analyses have been employed. At the same time, numerical models and observations are extensively used to characterize the influence of the solar irradiance variability on climate. This session invites abstracts on measurements and models of solar spectral and total irradiance as well as abstracts on the atmospheric response to solar irradiance variability. Abstracts on comparison of atmospheric effects to different solar irradiance datasets are particularly welcome.

Advances in investigation of solar-terrestrial activity in the wake of upcoming Maunder Minimum.

Convener: Valentina Zharkova 
Co-Conveners: Nicola Scafetta , Jan-Erik Solheim

In this session we invite presentations of research investigating various aspects of solar and solar-terrestrial activity during the past century, millennium and other scales and their interpretation with dynamo models. Many observations indicate that solar activity is approaching a hybernation stage comparable with Maunder Minimum recorded in the 17th century. All aspects of these changes are now under very close scrutiny, or order to understand the implication of this phase for the Earth and the whole Solar System.

Energetic Particles in the Heliosphere and their Influence on Space Weather, Space Climate and the Terrestrial Atmosphere.

Convener: Simon R Thomas 
Co-Conveners: Timo Laitinen , Ilya Usoskin , Keri Nicoll , Bernd Heber

The heliosphere is permeated with energetic particles of different compositions, energy spectra and origins. Two major populations of these particles are galactic cosmic rays (GCRs), which originate from outside of the heliosphere and are constantly detected at Earth, and solar energetic particles (SEPs) which are accelerated at/near the Sun during solar flares or by shock fronts associated with the transit of coronal mass ejections. Enhancements in energetic particle fluxes at Earth pose a hazard to humans and technology in space and at high altitudes. Within the magnetosphere, energetic particles are present in the radiation belts, and particle precipitation is responsible for the aurora and for hazards to satellites. Energetic particles have also been shown to cause changes is the chemistry of the middle and upper atmosphere with potential influence on regional or even global climate, and, on a shorter time-scale, can influence the global electric circuit. Furthermore, such particles can produce cosmogenic radionuclides within the atmosphere, which become stored in natural terrestrial archives. The records of these trapped particles make a quantitative proxy for long-term solar variability. This meeting will aim to address the passage of energetic particles through the heliosphere, their detection at Earth and the effects they have on the terrestrial atmosphere when they arrive. This session will aim to address the passage of energetic particles through the heliosphere, their detection at Earth and the effects they have on the terrestrial atmosphere when they arrive. It will bring together scientists from several fields of research in what is now very much an interdisciplinary area.  The session will allow sharing of expertise amongst international researchers as well as showcase the recent advances being made in this field, which demonstrate the importance of the study of these energetic particle populations.