weatherwiz Posted October 19, 2011 Share Posted October 19, 2011 What's the best way to break up sun spot data (using the Solar Flux data from http://www.esrl.noaa.gov/psd/data/correlation/solar.data) into different categories (low solar activity, moderate solar activity, and high solar activity (even maybe extreme)? Anyone have any suggestions on what scales would be appropriate to use? Link to comment Share on other sites More sharing options...
BethesdaWX Posted October 19, 2011 Share Posted October 19, 2011 What's the best way to break up sun spot data (using the Solar Flux data from http://www.esrl.noaa...tion/solar.data) into different categories (low solar activity, moderate solar activity, and high solar activity (even maybe extreme)? Anyone have any suggestions on what scales would be appropriate to use? It depends, for what purpose do you intend to use the data? Link to comment Share on other sites More sharing options...
weatherwiz Posted October 19, 2011 Author Share Posted October 19, 2011 It depends, for what purpose do you intend to use the data? Well I'm not sure if I have really any one purpose to use the data for. Just would like to get a better idea of what you would consider high solar activity, low solar activity and something in the middle. I guess I could just look at the lowest numbers and highest numbers sunspot wise and go from there but then I wouldn't be too sure on what the medium range should be. Link to comment Share on other sites More sharing options...
aslkahuna Posted October 19, 2011 Share Posted October 19, 2011 The 10.7 cm Solar flux can vary from <70 sfu to over 400 sfu so that's a question you might best ask SWPC via e-mail. In general, it's the X-ray data that's used to categorize the level of Solar activity on a daily basis. Steve Link to comment Share on other sites More sharing options...
weatherwiz Posted October 19, 2011 Author Share Posted October 19, 2011 The 10.7 cm Solar flux can vary from <70 sfu to over 400 sfu so that's a question you might best ask SWPC via e-mail. In general, it's the X-ray data that's used to categorize the level of Solar activity on a daily basis. Steve Thanks! Where would I find the X-ray data? Link to comment Share on other sites More sharing options...
BethesdaWX Posted October 20, 2011 Share Posted October 20, 2011 Well I'm not sure if I have really any one purpose to use the data for. Just would like to get a better idea of what you would consider high solar activity, low solar activity and something in the middle. I guess I could just look at the lowest numbers and highest numbers sunspot wise and go from there but then I wouldn't be too sure on what the medium range should be. Are you judging based on impact to the Earth's atmosphere, or simply solar output? Link to comment Share on other sites More sharing options...
weatherwiz Posted October 20, 2011 Author Share Posted October 20, 2011 Are you judging based on impact to the Earth's atmosphere, or simply solar output? Earth's atmosphere. Link to comment Share on other sites More sharing options...
BethesdaWX Posted October 20, 2011 Share Posted October 20, 2011 Earth's atmosphere. In that case what I usually look at are the AA index and AP index, they're similar but feature differences is measuring techniques, the timeframe of measurement, so on and so forth. Link to comment Share on other sites More sharing options...
weatherwiz Posted October 20, 2011 Author Share Posted October 20, 2011 In that case what I usually look at are the AA index and AP index, they're similar but feature differences is measuring techniques, the timeframe of measurement, so on and so forth. Where would I find this data? Link to comment Share on other sites More sharing options...
BethesdaWX Posted October 20, 2011 Share Posted October 20, 2011 Where would I find this data? Well first here is a great site for Monitoring all aspects of the sun: http://solarimg.org/artis/ You can extract AA index data from here: http://isgi.cetp.ipsl.fr/lesdonne.htm Or I can just post a graph # of days with a AA index reading > 60 per year. You can see what quantifies "low" versus "high" solar wind activity. AP index since 2000 Link to comment Share on other sites More sharing options...
weatherwiz Posted October 20, 2011 Author Share Posted October 20, 2011 This is awesome, thanks! Link to comment Share on other sites More sharing options...
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