A Conjunctive Study of Solar Flare 20010402 and Related Solar Proton Events by the Observation of SZ2/XD and ZY1/CBMC

2004 ◽  
Vol 47 (5) ◽  
pp. 837-842 ◽  
Author(s):  
Yu-Qian MA ◽  
Huan-Yu WANG ◽  
Cheng-Mo ZhaNG ◽  
Yu-Peng Xu ◽  
Jin-Zhou WANG ◽  
...  
Keyword(s):  
Solar Flare ◽  
Solar Proton ◽  
Solar Proton Events

An atlas of 10?50ke V solar flare X-rays and tentative atlas of solar proton events observed by the OGO-I and OGO-III ionization chambers

Solar Physics ◽  
1969 ◽  
Vol 6 (1) ◽  
pp. 151-151 ◽  
Author(s):  
S. R. Kane ◽  
J. R. Winckler
Keyword(s):  
Solar Flare ◽  
Solar Proton ◽  
X Rays ◽  
Ionization Chambers ◽  
Solar Proton Events

Application of support vector machine combined with K-nearest neighbors in solar flare and solar proton events forecasting

2008 ◽  
Vol 42 (9) ◽  
pp. 1469-1474 ◽  
Author(s):  
Rong Li ◽  
Yanmei Cui ◽  
Han He ◽  
Huaning Wang
Keyword(s):  
Support Vector Machine ◽  
Solar Flare ◽  
Nearest Neighbors ◽  
Solar Proton ◽  
Support Vector ◽  
K Nearest Neighbors ◽  
Solar Proton Events

A Lunar-Month Modulation of Large Solar-Terrestrial Disturbances

1967 ◽  
Vol 1 (1) ◽  
pp. 11-12 ◽  
Author(s):  
S. F. Smerd
Keyword(s):  
Solar Flare ◽  
Random Distribution ◽  
Full Moon ◽  
Solar Rotation ◽  
Rotation Period ◽  
Solar Proton ◽  
The Sun ◽  
The Moon ◽  
Unexpected Effect ◽  
Solar Proton Events

Dodson and Hedeman discovered an unexpected effect in the occurrence of solar proton events as revealed by polarcap absorption (PCA). When the 48 events in Bailey’s Catalog of the Principal PCA Events, 1952-1963 are distributed with the phase of the moon there is a gap of several days near full moon; also, many more events occur when the moon waxes than when it wanes. Dodson and Hedeman did not find similar, apparent departures from random distribution either with a mean solar rotation period of 27.3 days or for solar flare events. They concluded that ‘at the present time it is not clear whether the 29.5 day “effect” is related to the sun or the moon or is only a statistical accident’.

Study on Solar Proton Events in the Sun - Induced Earth’s Magnetic Field Atmospheric Variations

2017 ◽  
Vol 3 (06) ◽  
Author(s):  
M. V. Subramanian ◽  
S. Jagadesan ◽  
K. Aruna ◽  
S. Pari ◽  
S. Deivamalar
Keyword(s):  
Magnetic Field ◽  
Solar Flare ◽  
Solar Proton ◽  
Proton Event ◽  
Dst Index ◽  
Data Centre ◽  
Sunspot Numbers ◽  
The Earth ◽  
Solar Proton Events ◽  
Ap Index

Estimation has been made for the most powerful solar proton events recorded in the Earth environment during 1976 - 2015. This study has been done in association with other related activities such as Sunspot numbers and Solar flare index, the Earth’s magnetic field variation H constant, Dst index, Ap index and Kp index data from Kyoto data centre and OMNI data centre. We found that proton flux occurred after two days indicate the Dst index, Ap index and Kp index and Earth’s magnetic field H constant variations. This study has been done in association with other related activities such as sunspot numbers, solar flare activities. We found that the proton event occurred within 25 to 29 days after the cyclone was formed in the earth atmosphere. Earth atmospheric climate also changed.

The Cosmic Ray Solar Flare Increase of 16 February 1984

1984 ◽  
Vol 5 (4) ◽  
pp. 593-594
Author(s):  
A. G. Fenton ◽  
K. B. Fenton ◽  
J. E. Humble
Keyword(s):  
Solar Activity ◽  
Solar Cycle ◽  
Solar Flare ◽  
Cosmic Ray ◽  
Ground Level ◽  
Solar Proton ◽  
Solar Proton Events

Six solar proton events have been observed by ground level cosmic ray detectors so far during solar cycle 21, a little less than one per year. All of these have been much smaller than the giant events observed in solar cycle 19. As with many other aspects of solar activity, the reason for the differences from cycle to cycle remain unknown.

List of Solar Proton Events in the 24 Cycle of Solar Activity (2009 ‒ 2019)

2019 ◽  
Author(s):  
◽  
Vitaly Ishkov ◽  
Yury Logachev ◽  
Galina Bazilevskaya ◽  
Elena Daibog ◽  
...  
Keyword(s):  
Solar Activity ◽  
Solar Proton ◽  
Solar Proton Events

Effect of solar proton events in 1978 and 1979 on the odd nitrogen abundance in the middle atmosphere

1988 ◽  
Vol 93 (D6) ◽  
pp. 7084-7090 ◽  
Author(s):  
Charles H. Jackman ◽  
Paul E. Meade
Keyword(s):  
Middle Atmosphere ◽  
Solar Proton ◽  
Nitrogen Abundance ◽  
Solar Proton Events ◽  
Odd Nitrogen

Solar proton events during the past three solar cycles

1989 ◽  
Vol 26 (6) ◽  
pp. 403-415 ◽  
Author(s):  
D. F. Smart ◽  
M. A. Shea
Keyword(s):  
Solar Proton ◽  
Solar Cycles ◽  
The Past ◽  
Solar Proton Events

Large solar proton events and geosynchronous communication spacecraft solar arrays

1991 ◽  
Vol 28 (5) ◽  
pp. 614-616 ◽  
Author(s):  
L. J. Lanzerotti ◽  
D. W. Maurer ◽  
H. H. Sauer ◽  
R. D. Zwickl
Keyword(s):  
Solar Proton ◽  
Solar Arrays ◽  
Solar Proton Events

Ionization increases associated with the small solar proton events of 5 February 1965 and 16 July 1966

1969 ◽  
Vol 47 (2) ◽  
pp. 131-134 ◽  
Author(s):  
L. W. Hewitt
Keyword(s):  
Lower Ionosphere ◽  
Solar Proton ◽  
Satellite Observations ◽  
Geographic Latitude ◽  
Electron Number ◽  
Partial Reflection ◽  
D Region ◽  
Resolute Bay ◽  
Solar Proton Events

Observations of partial reflections from the ionosphere at vertical incidence at 2.66 MHz have been made at Resolute Bay, geographic latitude 74.7 °N, since September 1963. By measuring the amplitudes of the ordinary and extraordinary backscattered waves information is obtained about electron number densities in the lower ionosphere. The results presented in this paper show that the partial reflection technique is more sensitive than most other ground-based experiments for the detection of D-region ionization increases associated with small solar proton events. Results obtained by the partial reflection experiment during the events of 5 February 1965 and 16 July 1966 are presented and compared with VLF and satellite observations.

Sign in / Sign up

Export Citation Format

Share Document