We're pleased to present: Episode #4 of the NW7US Space Weather and Radio Propagation Podcast.

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Details About This Podcast

In this episode, Amateur Radio Operator, Tomas David Hood (NW7US) discusses with Dr. Penn of the National Solar Observatory the startling yet convincing trend revealed in research of magnetic strengths of sunspots over the last thirteen years. The trend indicates a strong possibility, if the trend continues, that sunspots will disappear by the year 2015!

Additionally, space weather and propagation conditions through August are reviewed, and the outlook for this coming week is presented.

Do you have any thoughts, suggestions, comments, or questions about this podcast, or of the podcast, in general? Please use the feedback form to send your correspondence to Tomas, NW7US.

A version of this podcast will be made available in a format ready for amateur radio repeater and HF transmission in the form of an information bulletin package. Details will be posted at the main Podcast website.

Dr. Matthew Penn

Image of Dr. Matthew Penn - In this picture, Dr. Penn is working with the the NSO Array Camera, which is the workhorse infrared detector at the McMath/Pierce Solar Telescope. Penn uses it to map the magnetic fields in sunspots using sensitive infrared spectral lines, as well as for studies of the solar atmosphere.

Papers and Articles by M.Penn

New - September 2, 2009: Dr. Penn responds to a general question regarding data integrity.

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Shane Justice  - Systems Engineer   |24.121.84.xxx |2009-09-11 12:14:48 Just a note to tell you how much I enjoyed your podcast on Sunsposts with Dr. Penn. Fascinating!! I am looking forward to podcast #5!! Great production value- nice to hear your whole family involved. 73, Shane KE7TR Reply 0 0

Michael Ronayne  - Solar Spectroscopy 101   |71.172.96.xxx |2009-09-05 12:52:03 Tomas, Thank you for the podcast of your interview with Dr. Martin Penn. I have already played it several times and plan to listen to it again. After you have podcast the second part of the interview next week would is it possible to issue a special edition podcast the interview in its entirety? You are providing an extremely valuable service by this interview, while the mainstream media is going to great lengths to ignore conditions on the Sun. Fortunately, that is changing as NASA is now paying official attention to the work of Drs. Livingston and Penn. NASA: Are Sunspots Disappearing? http://science.nasa.gov/headlines/y2009/03sep_sunspots.htm If you do issue a complete podcast of the entire interview, would you consider placing a copy in http://www.archive.org/details/audio_tech? If the second part of the interview is as good as the first, and Drs. Livingston and Penn are proven correct, the interview may well be of great value to future science historians as it provide... Reply 0 0

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