Matches in SemOpenAlex for { <https://semopenalex.org/work/W4367554323> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W4367554323 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> A possible impact of an extreme solar particle event (ESPE) on the middle atmosphere is studied for the present-day climate and geomagnetic conditions. We consider an ESPE with an occurrence probability of about 1 per millenium combined with an extreme geomagnetic storm (GMS) following the ESPE. The strongest known and best documented ESPE of 774/5 CE is taken as a reference example and established estimates of the corresponding ionization rates are applied. The ionization rates due to the energetic particle precipitation (EPP) during an extreme geomagnetic storm are up-scaled from analyzed distributions of electron energy spectra of observed geomagnetic storms. The consecutive buildup of NOx and HOx by the ionization is modeled in the high top 3D chemistry circulation model KASIMA, using specified dynamics from ERA-Interim analyses up to the stratopause. A specific dynamical situation was chosen which includes an elevated stratosphere event during January and maximizes the vertical coupling between the Northern polar mesosphere-lower thermosphere region and the stratosphere and therefore allows to estimate a maximum possible impact. The results show a strong enhancement of NOx which causes a substantial decrease of ozone in the mesosphere and stratosphere, and a significant decrease of total ozone in the Northern hemisphere in spring, enduring into the midlatitude summer after the event. The geomagnetic storm causes strong ozone reduction in the mesosphere but plays only a minor role for the reduction in total ozone. In the Southern hemisphere, the long-lived NOy in the polar stratosphere which is produced almost solely by the ESPE, is transported into the Antarctic polar vortex where it experiences strong denitrification into the troposphere. For this special case, we estimate a NO<sub>3</sub> wash-out which could produce a measurable signal in ice cores. The reduction in total ozone causes an increase of the UV erythema dose of less than 5 % which maximizes in spring for Northern latitudes of 30<span class=ILfuVd lang=en><span class=hgKElc><strong>°</strong></span></span> and in summer for Northern latitudes of about 60<span class=ILfuVd lang=en><span class=hgKElc><strong>°</strong></span></span>." @default.
- W4367554323 created "2023-05-01" @default.
- W4367554323 creator A5084191391 @default.
- W4367554323 date "2023-05-01" @default.
- W4367554323 modified "2023-10-07" @default.
- W4367554323 title "Reply on RC1" @default.
- W4367554323 doi "https://doi.org/10.5194/acp-2023-31-ac1" @default.
- W4367554323 hasPublicationYear "2023" @default.
- W4367554323 type Work @default.
- W4367554323 citedByCount "0" @default.
- W4367554323 crossrefType "peer-review" @default.
- W4367554323 hasAuthorship W4367554323A5084191391 @default.
- W4367554323 hasBestOaLocation W43675543231 @default.
- W4367554323 hasConcept C115260700 @default.
- W4367554323 hasConcept C116403925 @default.
- W4367554323 hasConcept C121332964 @default.
- W4367554323 hasConcept C125405218 @default.
- W4367554323 hasConcept C127313418 @default.
- W4367554323 hasConcept C131980223 @default.
- W4367554323 hasConcept C138082160 @default.
- W4367554323 hasConcept C153294291 @default.
- W4367554323 hasConcept C163861444 @default.
- W4367554323 hasConcept C18101618 @default.
- W4367554323 hasConcept C199635899 @default.
- W4367554323 hasConcept C2778835443 @default.
- W4367554323 hasConcept C39432304 @default.
- W4367554323 hasConcept C49204034 @default.
- W4367554323 hasConcept C62520636 @default.
- W4367554323 hasConcept C65440619 @default.
- W4367554323 hasConcept C69976271 @default.
- W4367554323 hasConcept C8058405 @default.
- W4367554323 hasConcept C91586092 @default.
- W4367554323 hasConceptScore W4367554323C115260700 @default.
- W4367554323 hasConceptScore W4367554323C116403925 @default.
- W4367554323 hasConceptScore W4367554323C121332964 @default.
- W4367554323 hasConceptScore W4367554323C125405218 @default.
- W4367554323 hasConceptScore W4367554323C127313418 @default.
- W4367554323 hasConceptScore W4367554323C131980223 @default.
- W4367554323 hasConceptScore W4367554323C138082160 @default.
- W4367554323 hasConceptScore W4367554323C153294291 @default.
- W4367554323 hasConceptScore W4367554323C163861444 @default.
- W4367554323 hasConceptScore W4367554323C18101618 @default.
- W4367554323 hasConceptScore W4367554323C199635899 @default.
- W4367554323 hasConceptScore W4367554323C2778835443 @default.
- W4367554323 hasConceptScore W4367554323C39432304 @default.
- W4367554323 hasConceptScore W4367554323C49204034 @default.
- W4367554323 hasConceptScore W4367554323C62520636 @default.
- W4367554323 hasConceptScore W4367554323C65440619 @default.
- W4367554323 hasConceptScore W4367554323C69976271 @default.
- W4367554323 hasConceptScore W4367554323C8058405 @default.
- W4367554323 hasConceptScore W4367554323C91586092 @default.
- W4367554323 hasLocation W43675543231 @default.
- W4367554323 hasOpenAccess W4367554323 @default.
- W4367554323 hasPrimaryLocation W43675543231 @default.
- W4367554323 hasRelatedWork W2100087626 @default.
- W4367554323 hasRelatedWork W2461567931 @default.
- W4367554323 hasRelatedWork W4214629095 @default.
- W4367554323 hasRelatedWork W4223963562 @default.
- W4367554323 hasRelatedWork W4232031481 @default.
- W4367554323 hasRelatedWork W4319315914 @default.
- W4367554323 hasRelatedWork W4322009835 @default.
- W4367554323 hasRelatedWork W4322739494 @default.
- W4367554323 hasRelatedWork W4367554231 @default.
- W4367554323 hasRelatedWork W4367554323 @default.
- W4367554323 isParatext "false" @default.
- W4367554323 isRetracted "false" @default.
- W4367554323 workType "peer-review" @default.