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arXiv · 1110.0437

The Prelude to the Deep Minimum between Solar Cycles 23 and 24: Interplanetary Scintillation Signatures in the Inner Heliosphere

P. Janardhan·Susanta Kumar Bisoi·S. Ananthakrishnan·M. Tokumaru·K. Fujiki
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Abstract

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.

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P. Janardhan, Susanta Kumar Bisoi, S. Ananthakrishnan, M. Tokumaru, K. Fujiki. 2011-10-04. The Prelude to the Deep Minimum between Solar Cycles 23 and 24: Interplanetary Scintillation Signatures in the Inner Heliosphere. https://doi.org/10.1029/2011gl049427

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