<strong>Evolution of solar indices during the maximum of solar cycle 24</strong>
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Title Statement |
<strong>Evolution of solar indices during the maximum of solar cycle 24</strong> |
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Added Entry - Uncontrolled Name |
Kane, R P ; Instituto Nacional de Pesquisas Espaciais – INPE, C.P. 515, 12245–970 – São José dos Campos, SP, Brazil |
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Summary, etc. |
<p><strong>Abstract: </strong><strong>Solar cycle 24 started in 2008-2009 and the peak ~67 in sunspot number (12-month running means) occurred in February 2012. Several other solar indices (2800 MHz solar radio flux, Lyman-</strong><strong>a</strong><strong>, Mg II 280 index, TSI Total Solar Irradiance, all of origin in chromosphere or lower corona) also show peaks at February 2012; but coronal indices, X-rays and Coronal Mass Ejection (CME) frequency, show a broad plateau around February 2012. In interplanetary parameters, solar wind speed V shows a broad peak <em>earlier</em> than February 2012 (during September 2010-October 2011) and a decline thereafter. Number density N does not seem to have any relationship with solar indices; but magnetic field B peaked near February 2012. Geomagnetic index Ap shows the same pattern as B. Cosmic ray intensity maximum (peak) decreases at middle and high latitudes shows a <em>delay</em> with respect to peak of solar indices by several (more than ten) months.</strong></p> |
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Publication, Distribution, Etc. |
Indian Journal of Radio & Space Physics (IJRSP) 2017-01-05 09:21:06 |
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Electronic Location and Access |
application/pdf http://op.niscair.res.in/index.php/IJRSP/article/view/3994 |
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Data Source Entry |
Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 43, ##issue.no## 2 (2014): Indian Journal of Radio & Space Physics |
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Language Note |
en |
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Nonspecific Relationship Entry |
http://op.niscair.res.in/index.php/IJRSP/article/download/3994/8076 |
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Terms Governing Use and Reproduction Note |
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