Journal article Open Access

Evidence of 6 000-Year Periodicity in Reconstructed Sunspot Numbers

Xapsos, M. A.; Burke, E. A.

DataCite XML Export

<?xml version='1.0' encoding='utf-8'?>
<resource xmlns:xsi="" xmlns="" xsi:schemaLocation="">
  <identifier identifierType="URL"></identifier>
      <creatorName>Xapsos, M. A.</creatorName>
      <givenName>M. A.</givenName>
      <creatorName>Burke, E. A.</creatorName>
      <givenName>E. A.</givenName>
    <title>Evidence of 6 000-Year Periodicity in Reconstructed Sunspot Numbers</title>
    <date dateType="Issued">2009-05-27</date>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
    <alternateIdentifier alternateIdentifierType="url"></alternateIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1007/s11207-009-9380-3</relatedIdentifier>
    <rights rightsURI="">Creative Commons Zero v1.0 Universal</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
    <description descriptionType="Abstract">Reconstructed sunspot data are available that extend solar activity back to 11 360 years before the present. We have examined these data using Hurst analysis, a moving average filter, and Fourier analysis. All of the procedures indicate the presence of a long term (≈6 000 year) cycle not previously reported. A number of shorter cycles formerly identified in the literature by using Fourier analysis, Bayes methods, and maximum entropy methods were also detected in the reconstructed sunspot data.</description>
Views 188
Downloads 93
Data volume 31.4 MB
Unique views 186
Unique downloads 88


Cite as