منابع مشابه
IDV 09 and Heliospheric Magnetic Field 1835 - 2009
We use recently acquired archival data to extend the IDV-index of long-term 6 geomagnetic activity. The new IDV series (IDV09) includes the years 1835-2009, vs. 7 1872-2004 for IDV05, with improved early data coverage, substantiating our earlier 8 work. Comparison of the IDV09-based HMF strength with other recent reconstructions of 9 solar wind B yields a strong consensus between series based o...
متن کاملVariation of SEP event occurrence with heliospheric magnetic field
Recent work based on nitrate abundances in polar ice cores has shown that large fluence solar energetic (E > 30 MeV) particle (LSEP) events during the spacecraft era of observations (1960-present) are diminished in comparison with those of some preceding eras detected in the ice cores dating back to 1561. McCracken et al. [McCracken, K.G.. Dreschhoff, G.A.M., Smart, D.F., Shea. M.A. A study of ...
متن کاملThe Heliospheric Magnetic Field over the Hale Cycle
The concept that open magnetic flux of the Sun (rooted with one and only one footpoint at the Sun) is a conserved quantity is taking root in the heliospheric community. Observations show that the Sun’s open magnetic flux returns to the baseline from one solar minimum to the next. The temporary enhancement in the 1 AU heliospheric magnetic flux near solar maximum can be accounted for by the temp...
متن کاملDependence of Heliospheric Lyα Absorption on the Interstellar Magnetic Field
We use newly developed 3D kinetic MHD models of the heliosphere to predict heliospheric H I Lyα absorption for various lines of sight. These predictions are compared with actual Lyα spectra from the Hubble Space Telescope, many of which have yielded previous detections of heliospheric absorption. We find that the absorption predicted by the models is weakly affected by both the magnitude and or...
متن کاملVariation of SEP event occurrence with heliospheric magnetic field magnitudes
Recent work based on nitrate abundances in polar ice cores has shown that large fluence solar energetic (E > 30 MeV) particle (LSEP) events during the spacecraft era of observations (1960-present) are diminished in comparison with those of some preceding eras detected in the ice cores dating back to 1561. McCracken et al. [McCracken, K.G.. Dreschhoff, G.A.M., Smart, D.F., Shea. M.A. A study of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2010
ISSN: 0148-0227
DOI: 10.1029/2009ja015069