Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2011-10-03
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
9 pages, 4 figures, accepted for publication in Geophysical Research Letters on 28 September 2011
Scientific paper
10.1029/2011GL049427
Extensive interplanetary scintillation (IPS) observations at 327 MHz obtained between 1983 and 2009 clearly show a steady and significant drop in the turbulence levels in the entire inner heliosphere starting from around ~1995. We believe that this large-scale IPS signature, in the inner heliosphere, coupled with the fact that solar polar fields have also been declining since ~1995, provide a consistent result showing that the buildup to the deepest minimum in 100 years actually began more than a decade earlier.
Ananthakrishnan S.
Bisoi Susanta Kumar
Fujiki Ken'ichi
Janardhan Padmanabhan
Tokumaru Munetoshi
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