x-y-no wrote:Jim Hughes wrote:
Actually Jan I have never said a solar flare causes anything ...
OK, but that's what I understood you to be claiming when you wrote:
The LASCO images , and the time of the X1.3/2B flare lead me to believe that we should see a tropical depression develop by 7/31/21z
It sure seemed to me that this was hypothesizing solar activity as causative of tropical cyclogenesis.
... nor would I like to limit it to an X-ray level. I waited for all the particulars were in on the X1.3 flare before I even started this topic. It was the associated Type II/3 and Type IV/2 events that made me forecast an upcoming development not the x-ray level.
Ok ... but that still does nothing to address the issue of causation. Whether we're talking about X-rays or Gamma-rays or plasma flow or whatever, the same two issues I raised still apply.
...
This is not me talking heresay this is a scientific fact. The size of the eruption...magnetic field...location etc. play a much bigger role then the flares x-ray size. Even a smaller class C-flare can bombard the earth with more particles than then the bigger ones sometimes.
Let's have some numbers. What's the total energy delivered to the Earth's atmosphere by such an event? What's the energy distribution (polar vs tropical, widely spread or concentrated)? How do these numbers compare to the radiative input, and to the kinetic energy of the weather systems you think are affected by such events?
It seem like you are at least willing to consider or talk about this. So I would like to propose something. Yesterday's forecast is water under the bridge .... would using the MJO phases as a forecasting guideline be good for you?
In other words I will look at the eight phases from the MJO URL I gave. We already know my forecasting formula...We then look at specific areas during specfic time frames of when the MJO is in the proper phase. If it's not we throw it out...What about it?
I'm certainly open to the possibility that the MJO can give some indication of probable development, although given that we just had the most active July in history during a pretty much neutral MJO regime, I'm thinking it may be more a negative than a positive indicator (i.e certain phases may indicate suppression in certain regions).
I'm not sure how that relates to solar phenomena, however. But by all means, let's try some specific forecasts and maybe I can grasp what it is you think is going on.
Jan
I guess I can understand you thinking that I meant the effects from x-class flare by itself after reading it again but when I mentioned timing I was referring both to the placement of all the other variables that I had spoken about during the previous days as well as the 31/21z forecast . I went forward 36 hours from the flaring/eruption time. This is the delayed time frame that I have noticed over the years.
The variables... in place.... were the solar wind diminishing from it's earlier high peak the previous 24-36 hours...The >2 Mev electron fluence was above 0.0e+07 so if the solar winds had increased from a transient from one of the earlier CME 's it most likely would have stayed above this level. The Stanford Mean magnetic field reading had also just turned positive the day before so the NE solar quadrant was conducive. (The origin of the event.)
Like I mentioned earlier smaller x-ray flares can produce larger particle events. The most recent X-1.3 2/B flare is a good example. There was a > 10 MeV proton event and >100 MeV also rose but it never reached event level.
You can see the numbers here.
http://www.sel.noaa.gov/ftpdir/indices/ ... Q3_DPD.txt
On September 12th , 2000 a classic hyder flare occurred after the eruption of a 23 degree filament in the southern hemisphere. the M1.2 LDE , two ribbon flare , produced a larger proton storm and the flare was much smaller than the X1.3/3b.
http://www.sel.noaa.gov/ftpdir/indices/ ... 00_DSD.txt
http://www.sel.noaa.gov/ftpdir/indices/ ... 00_DPD.txt
I'll grant you that the basic rule of thumb is correct most of the time but on several occasions smaller x-ray flares can bombard the earth' ionosphere with both higher proton and electron levels.
I would tend to disagree with the Neutral MJO being non important if there is a connection. We had a substantial increase in solar activity/space weather during early July. It exceeded the previous six weeks or more. We had also gone into another lull slightly after mid month until the other day.
I am unaware of anything being written or said about a strong conducive MJO phase being present , to possibly explain the extreme nature of July's activity. Something other than the MJO must have been involved....besides SST's... This is where I believe thst space weather may have played a factor
An increase in the proper space weather variables ..if the relation is true...may still be able enhance tropical activity when the MJO is neutral while it's the inhibiting MJO phases that would hurt the relationship.
The proper MJO relationship would then possibly enhance the relationship and this increases the chances of more intense hurricanes....if true.
Time will tell if there is a connection. I realize that a proper statistical analysis must be done but I look forward to watching both the tropics and the MJO phases. This forum is a very good place to be and I know allot of people post updates about different areas. So it will be easier for me to monitor.
Hopefully others will to. I will try and keep things updated space weather wise and MJO wise...Plus come up with the MJO phase numbers for each region..EPAC included
Jim