𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Short-Term Periodicities in Sunspot Activity and

✍ Scribed by H. Kiliç


Publisher
Springer
Year
2009
Tongue
English
Weight
514 KB
Volume
255
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Short periodicities in solar activity
✍ K. Ramanuja Rao 📂 Article 📅 1973 🏛 Springer 🌐 English ⚖ 261 KB

Several indices of solar activity are subjected to a high pass filter and power spectral analysis to verify the existance of shorter per~di.cit~j..n...solar act iviLy:yhgu~h all these indices show the presence of short periodicities, above 95 ~ confidence level, the common indices like sunspot numbe

Intermediate-term periodicities in solar
✍ R. Oliver; M. Carbonell; J. L. Ballester 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 731 KB

The presence of intermediate-term periodicities in solar activity, at approximately 323 and 540 days, has been claimed by different authors. In this paper, we have performed a search for them in the historical records of two main indices of solar activity, namely, the daily sunspot areas (cycles 12-