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Waldmeier Effect in Stellar Cycles

Graph depicting the second Waldmeier effect-WE2
Tuesday, October 8, 2019

One of the most robust features of the solar magnetic cycle is that the stronger cycles rise faster than the weaker ones. This is popularly known as the Waldmeier Effect, which is known for more than 100 years.

P Judge and R Casini Advise Early Career Researchers

Roberto Casini and Philip Judge image

Physics World presents an article co-authored by HAO senior scientists, Philip Judge and Roberto Casini, on the challenges for the "budding research scientist" when selecting a meaningful research field and future career.

Egidio Landi Degl'Innocenti (1945–2017)

Prof. Egidio Landi Degl’Innocenti

On Sunday, February 12th, 2017, Prof. Egidio Landi Degl’Innocenti unexpectedly died of a heart attack in his home in Florence, Italy. Egidio had just returned from a scientific visit to the Instituto de Astrofísica de Canarias (IAC) in Spain, working with one of us (JTB).

Sarah Gibson

Submitted by whawkins on April 13, 2016 - 11:35am

Dr. Sarah Gibson is a Senior Scientist in the High Altitude Observatory (HAO) at NCAR, and Section Head of HAO’s Long-term Solar Variability Section.

Welcome to Boulder Solar Alliance (BSA)

Boulder is fortunate to have one of the greatest concentrations of solar physics institutes in the world. To encourage communication among researchers from these institutes, we have formed the BSA with representation from:

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The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.