{"id":119,"date":"2019-07-12T08:00:22","date_gmt":"2019-07-12T08:00:22","guid":{"rendered":"http:\/\/www.issibern.ch\/teams\/ioneffectozone\/?page_id=2"},"modified":"2019-07-12T08:00:22","modified_gmt":"2019-07-12T08:00:22","slug":"sample-page","status":"publish","type":"page","link":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/","title":{"rendered":"Abstract"},"content":{"rendered":"\n

Antti Kero, SGO, Finland<\/strong><\/p>\n\n\n\n

Jia Jia, SGO, Finland <\/strong><\/p>\n\n\n\n

Mick Denton, Boulder, US<\/strong> <\/p>\n\n\n\n

Rigel Kivi, FMI, Finland<\/strong> <\/p>\n\n\n\n

Pekka Verronen, FMI, Finland<\/strong><\/p>\n\n\n\n

Annika Sepp\u00e4l\u00e4, Otago, New Zealand<\/strong><\/p>\n\n\n\n

Ilya Usoskin, Oulu, Finland<\/strong> <\/p>\n\n\n\n

Eugene Rozanov, IAC ETHZ, PMOD\/WRC, Switzerland<\/strong><\/p>\n\n\n\n

Christine Smith-Johnsen<\/strong>, University of Bergen, Norway<\/strong><\/p>\n\n\n\n

Niilo Kalakoski, Finnish Meteorological Institute, Finland<\/strong><\/p>\n\n\n\n

Kseniia Golubenko, University of Oulu, Finland <\/strong><\/p>\n\n\n\n

Kenneth Nilsen, SGO, Finland<\/strong><\/p>\n\n\n\n

Our team investigates possible direct<\/em> stratospheric ozone variability caused by space weather events, i.s., solar proton events and the modulated cosmic ray fluxes.
<\/p>\n\n\n\n

Recently, Denton et al., [2018 a,b] have discovered a statistically \ndetectable direct ozone reduction during the solar proton events by \nusing the balloon-sounding datasets, i.e., at the altitudes of the ozone\n layer. This effect is highly unexpected by the current models, as the \nionisation rates induced by most of the solar protons events are \nexpected to be significant in the upper stratosphere and mesosphere, but\n insignificant at the altitudes of the ozone balloon soundings.
<\/p>\n\n\n\n

The influence of Galactic Cosmic Rays on the stratospheric ozone was \nstudied by using SOCOL model in Calisto et al., 2011. A strong loss in \nthe Antarctic polar lower stratosphere with annual mean mixing ratios \ndecreasing by 3 % was reported. However, this effect has not been \nconfirmed by observations to date.
<\/p>\n\n\n\n

Our team will make an assessment on these effects based on satellite \n(MLS, GOMOS) and ground based datasets (ozonesonde) and atmospheric \nmodels (SIC, WACCM-D, SOCOL), including the crucial role of the polar \nvortex. Our primary research objective is to find a mechanism by which \nthe ozone layer is reduced by solar proton events. Moreover, we will \nassess experimentally the importance of the galactic cosmic ray fluxes \nvariations to the stratospheric ozone.<\/p>\n\n\n\n

References<\/p>\n\n\n\n

Calisto, M., Usoskin, I., Rozanov, E., and Peter, T.: Influence of \nGalactic Cosmic Rays on atmospheric composition and dynamics, Atmos. \nChem. Phys., 11, 4547-4556, https:\/\/doi.org\/10.5194\/acp-11-4547-2011, \n2011.
<\/p>\n\n\n\n

M.H. Denton, R. Kivi, T. Ulich, C.J. Rodger, M.A. Clilverd, R.B. \nHorne, A.J. Kavanagh, Solar proton events and stratospheric ozone \ndepletion over northern Finland, Journal of Atmospheric and \nSolar-Terrestrial Physics, Volume 177, 2018a,
<\/p>\n\n\n\n

Denton, M. H., Kivi, R., Ulich, T., Clilverd, M. A., Rodger, C. J., \n& von der Gathen, P. (2018b). Northern hemisphere stratospheric \nozone depletion caused by solar proton events: The role of the polar \nvortex. Geophysical Research Letters, 45.https:\/\/doi.org\/10.1002\/2017GL075966<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Antti Kero, SGO, Finland Jia Jia, SGO, Finland Mick Denton, Boulder, US Rigel Kivi, FMI, Finland Pekka Verronen, FMI, Finland Annika Sepp\u00e4l\u00e4, Otago, New Zealand Ilya Usoskin, Oulu, Finland Eugene Rozanov, IAC ETHZ, PMOD\/WRC, Switzerland Christine Smith-Johnsen, University of Bergen, … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":20,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-119","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/pages\/119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/comments?post=119"}],"version-history":[{"count":0,"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/pages\/119\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/media\/20"}],"wp:attachment":[{"href":"https:\/\/www.issibern.ch\/teams\/ioneffectozone\/wp-json\/wp\/v2\/media?parent=119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}