Results 31 to 40 of about 12,501,323 (353)

Introduction to special issue on high speed solar wind streams and geospace interactions (HSS-GI) [PDF]

, 2009
This special issue of the Journal of Atmospheric and Solar-Terrestrial Physics is devoted to research into high speed solar wind streams (HSSs) and their effects on the region of near-Earth space commonly known as ‘geospace’.
Morley, S.K., Denton, M.H, Horne, Richard B, Borovsky, J.E., Tsurutani, B.T., Denton, M.H., Horne, R.B., McPherron, R.L.   +7 more
core   +1 more source

Guided filtering for solar image/video processing

Solar-Terrestrial Physics, 2017
A new image enhancement algorithm employing guided filtering is proposed in this work for enhancement of solar images and videos, so that users can easily figure out important fine structures imbedded in the recorded images/movies for solar observation ...
Long Xu, Yihua Yan, Jun Cheng
doaj   +1 more source

The passband integration properties of Birefringent filter

Scientific Reports, 2021
In this article, we discuss an observation phenomenon where the total amount of photons in the full passband of the Birefringent filter is a constant number that is considered by removing the spectrum of the light source irrespective of the instrument ...
Xiaofan Wang, Mikhail Leonidovich Demidov, Yuanyong Deng, Haiying Zhang   +3 more
doaj   +1 more source

Geomagnetic storms driven by ICME- and CIR-dominated solar wind. [PDF]

, 2006
The interaction of the solar wind and the Earth's magnetosphere is complex and the phenomenology of the interaction is very different for solar wind dominated by interplanetary coronal mass ejections (ICMEs) compared to solar wind dominated by corotating
Liemohn, M. W., Zhang, J. C., Skoug, R. M., McPherron, R. L., Denton, M. H., Borovsky, Joseph E., Denton, Michael H., Henderson, M. G., Lavraud, B., Borovsky, J. E., Thomsen, M. F.   +10 more
core   +1 more source

Solar Activity [PDF]

Transactions of the International Astronomical Union, 1982
This report summarizes research on solar activity over an almost three-year period from January 1, 1979, till the end of June 1981. In preparing this report we respected the advice of the I.A.U. Executive Committee to cover the highlights of work carried out in the field of solar physics relevant to our Commission, and avoiding double work.
H. Yoshimura, R. Howard, M. Kopecký, H. Zirin, V. Bumba, O. Engvold, D. M. Rust, M. Pick, V. E. Stepanov, M. Dryer, R. J. Bray   +10 more
openaire   +2 more sources

Whole Atmosphere Climate Change: Dependence on Solar Activity

Journal of Geophysical Research: Space Physics, 2019
We conducted global simulations of temperature change due to anthropogenic trace gas emissions, which extended from the surface, through the thermosphere and ionosphere, to the exobase. These simulations were done under solar maximum conditions, in order
S. Solomon, Han L. Liu, D. Marsh, J. McInerney, L. Qian, F. Vitt   +5 more
semanticscholar   +1 more source

On solar protons and polar cap absorption: Constraints on an empirical relationship [PDF]

, 2004
International audienceA large database of Solar Proton Events (SPE) from the period 1995 to 2001 is used to investigate the relationship between proton flux at geostationary orbit and Cosmic Noise Absorption (CNA) in the auroral zone. The effect of solar
A. Senior, Senior, A., S. R. Marple, Kavanagh, A. J., A. J. Kavanagh, Marple, S. R., McCrea, I. W., F. Honary, I. W. McCrea, Honary, F.   +9 more
core   +1 more source

Solar activity during the Holocene: the Hallstatt cycle and its consequence for grand minima and maxima [PDF]

, 2016
Cosmogenic isotopes provide the only quantitative proxy for analyzing the long-term solar variability over a centennial timescale. While essential progress has been achieved in both measurements and modeling of the cosmogenic proxy, uncertainties still ...
I. Usoskin, Y. Gallet, F. Lopes, G. Kovaltsov, G. Hulot   +4 more
semanticscholar   +1 more source

A forecast of solar activity [PDF]

Journal of Geophysical Research, 1945
I WISH to direct attention to the fact that a relatively long period of intensive solar activity seems to be imminent. If this should be the case, the coming years will probably be very suitable for studying possible relations between sunspots and such terrestrial phenomena as are supposed to be allied to solar activity.
openaire   +1 more source

Relationship between solar activity and Δ14C peaks in AD 775, AD 994, and 660 BC

Radiocarbon: An International Journal of Cosmogenic Isotope Research, 2017
Since the AD 775 and AD 994 Δ14C peak (henceforth M12) was first measured by Miyake et al. (2012, 2013), several possible production mechanisms for these spike have been suggested, but the work of Mekhaldi et al.
Junghun Park, J. Southon, S. Fahrni, P. P. Creasman, R. Mewaldt   +4 more
semanticscholar   +1 more source