The role of solar and geomagnetic activity in endothelial activation and inflammation in the NAS cohort. [PDF]
PLoS ONE, 2022 This study investigated the associations between solar and geomagnetic activity and circulating biomarkers of systemic inflammation and endothelial activation in the Normative Aging Study (NAS) cohort.
Jessica E Schiff +9 more
doaj +2 more sources
The Geomagnetic Kp Index and Derived Indices of Geomagnetic Activity [PDF]
Space Weather, 2021 The geomagnetic Kp index is one of the most extensively used indices of geomagnetic activity, both for scientific and operational purposes. This article reviews the properties of the Kp index and provides a reference for users of the Kp index and ...
J. Matzka +4 more
doaj +6 more sources
Geomagnetic Activity Index Hpo
Geophysical Research Letters, 2022 AbstractThe geomagnetic activity index Kp is widely used but is restricted by low time resolution (3‐hourly) and an upper limit. To address this, new geomagnetic activity indices, Hpo, are introduced. Similar to Kp, Hpo expresses the level of planetary geomagnetic activity in units of thirds (0o, 0+, 1−, 1o, 1+, 2−, …) based on the magnitude of ...
Yamazaki, Y. +9 more
openaire +5 more sources
Clocks & Sleep, 2021 The influence of magnetic fields and natural geomagnetic storms on biological circadian rhythms are actively studied. This study reveals an impact of local natural perturbations in the geomagnetic field that occurred at different times of the day on ...
Viacheslav V. Krylov
doaj +1 more source
Latitude dependence of long-term geomagnetic activity and its solar wind drivers [PDF]
Annales Geophysicae, 2015 To validate the usage of global indices in studies of geomagnetic activity, we have examined the latitude dependence of geomagnetic variations in Fennoscandia and Svalbard from 1994 to 2010.
M. Myllys +3 more
doaj +1 more source
Response of Meteor Plasma Trails Observed by Meteor Radar to Geomagnetic Activity
Geophysical Research Letters, 2023 From meteor radar observations typically measuring neutral winds and temperatures in the upper atmosphere, we showed that under‐dense meteor plasma trails respond to geomagnetic activity.
Hosik Kam +6 more
doaj +1 more source
Atmosphere, 2020 Solar activity dominates the temporal variability of ionospheric properties, which makes it difficult to identify and isolate the effects of geomagnetic activity on the ionosphere. Therefore, the latter effects on the ionosphere are still unclear.
Haimeng Li +5 more
doaj +1 more source
Analysis of geomagnetic disturbances dynamics during increased solar activity and magnetic storms (according to the measurements of INTERMAGNET station network) [PDF]
E3S Web of Conferences, 2019 We present and describe an automated method for analysis of magnetic data and for detection of geomagnetic disturbances based on wavelet transformation.
Mandrikova Oksana +2 more
doaj +1 more source
On the multi-scale nature of large geomagnetic storms: an empirical mode decomposition analysis [PDF]
Nonlinear Processes in Geophysics, 2012 Complexity and multi-scale are very common properties of several geomagnetic time series. On the other hand, it is amply demonstrated that scaling properties of geomagnetic time series show significant changes depending on the geomagnetic activity level.
P. De Michelis, G. Consolini, R. Tozzi
doaj +1 more source
Geomagnetic activity related NOx enhancements and polar surface air temperature variability in a chemistry climate model: modulation of the NAM index [PDF]
Atmospheric Chemistry and Physics, 2011 The atmospheric chemistry general circulation model ECHAM5/MESSy is used to simulate polar surface air temperature effects of geomagnetic activity variations.
P. Jöckel +3 more
doaj +1 more source