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|    Message 8,184 of 8,965    |
|    MrPostingRobot@kymhorsell.com to All    |
|    ufos and seaice: alaska chapter (1/2)    |
|    07 Mar 21 20:40:04    |
   
   XPost: alt.paranet.ufo   
      
   EXECUTIVE SUMMARY:   
   - Seaice in key areas around Alaska seem to predict daily UFO   
    sightings some time later.   
   - The biggest association comes from the Bering Straight and some   
    large areas along longitude 170W.   
   - A small region appears in the Mackenzie Bay nr the AK/YT border.   
   - Given other data associated with UFO sightings nr the Bering Sea and   
    Aleutians we might suspect UFOs regularly travel via air or water   
    along 170W perhaps on their way to visit the US or other points S.   
   - Basic images and plots at .   
      
   We've seen in a previous post that certain key regions have an   
   affinity or predictive power for UFO sightings.   
      
   We might interpret a region where e.g. thickness of sea ice is   
   negatively correlated with daily UFO sightings across the US 30 days   
   later as somehow "encouraging" more UFO sightings when sea ice   
   disappears.   
      
   The distribution of these particular regions has a pattern we might   
   expect for other "folkloric" information going back decades. It turns   
   out not just any region that is subject to seasonal seaice can closely   
   predict UFO activity.   
      
   We've seen that seaice across the Arctic Ocean contains key regions   
   where the correlation between seaice and UFO sightings seems to go   
   very high (~90%). From the very rough map of the region posted   
   previously we could almost see a path from N Russia across the N   
   America where the data suggested a UFO track might be highly probable.   
      
   Here we'll zoom in at least part of the "destination" region in   
   question and look at the satellite radar data gathered around Alaska.   
      
   As before the s/w has gathered together daily NOAA radar maps for the   
   region from 2010 to the present. For each smaller 100x100 pixel region   
   of each image a time series is created and correlated against daily   
   NUFORC sightings data. The s/w finds an optimum lag (days) that   
   maximize the R2 statistic -- the fraction of day-to-day variations in   
   UFO sightings that seem to exactly correspond with similar day-to-day   
   variations in radar returns (aka "sea ice proxy") from each area   
   across the Alaska region.   
      
   Big surprise, a lot of the region shows no association whatever.   
   Seaice across most of the Pacific off Alaska has no predictive power   
   for UFO sightings across N Am.   
      
   But equally no surprise, some key regions "light up" as if they were   
   key flight or submarine routes between (wherever) and N Am,   
   particularly the USA.   
      
   The biggest "lit up" area is along longitude 170W starting at the   
   Bering Straight.   
      
   It's as if UFO's normally travel along this route and are inhibited   
   (maybe ever so slightly :) by the presence of icebergs or seasonal seaice.   
      
   The best areas have about an 80% R2. E.g. the stat model for one of   
   the "best" predictive areas along 170W looks like:   
      
   (Log transform enabled).   
   (58 day lag).   
   (No serial corr detected).   
   y = 12.0597*exp(-0.128055*x)   
   Doubling Rate -5.41   
   beta in -0.128055 +- 0.0179935 90% CI (42 df)   
   alpha in 2.48987 +- 0.0203901   
   P(beta<0.000000) = 1.000000   
   r2 = 0.77331859   
      
   Binned data:   
      
   Bin label av radar return av daily UFO predicted UFO   
    sightings sightings   
   2010209 -0.642513 12 13.0939* (+1sd over obs)   
   2015141 0.799166 10.6667 10.8866   
   2018061 -0.121636 11.3333 12.249   
   2018194 -2.03485 15 15.6495   
   2018273 -1.08003 13.2381 13.8484   
   2019056 0.477173 11.75 11.3449   
   2019078 1.00353 10.4 10.6054   
   2019101 2.25662 9.5 9.03311   
   2019132 0.693845 13 11.0344**(-2sd)   
   2019228 -1.40318 13.45 14.4335   
   2019232 -1.2387 13 14.1327*(+1sd)   
   2019288 -1.75659 17.4286 15.1017*(-1)   
   2019318 1.31776 9 10.1871*(+1)   
   2019358 1.64419 9.375 9.77005   
   2020022 -0.266284 13.125 12.478   
   2020033 1.3734 10.5 10.1148   
   2020048 -0.710915 14.2 13.2091   
   2020053 0.000560869 14.25 12.0588**(-2)   
   2020112 0.928496 11.45 10.7078   
   2020128 0.0698588 12.4 11.9523   
   2020138 1.08781 10.7778 10.4915   
   2020148 1.56027 9.16667 9.87561   
   2020153 1.16237 10.1333 10.3918   
   2020157 1.70302 9.5 9.69672   
   2020161 0.750138 11.2593 10.9551   
   2020188 1.27131 9.7619 10.2479   
   2020198 0.624474 11 11.1329   
   2020201 -0.361818 13.72 12.6316*(-1)   
   2020218 -1.34287 13 14.3225*(+1)   
   2020228 -1.85943 13.9 15.3019*(+1)   
   2020237 -1.18838 12.0526 14.0419*(+1)   
   2020250 -1.68671 17 14.9672*(-1)   
   2020254 -0.815058 13.7391 13.3864   
   2020274 0.425204 12.5667 11.4206*(-1)   
   2020293 -0.618811 12.5 13.0542   
   2020298 -1.29014 16 14.2261*(-1)   
   2020305 -1.52538 13.8889 14.6612   
   2020315 0.851102 9.80645 10.8144*(+1)   
   2020325 -0.429844 13.25 12.7421   
   2020335 0.150114 11.7 11.8301   
   2020345 0.538486 10.186 11.2561*(+1)   
   2020347 -0.504824 13.7368 12.865   
   2020355 1.47428 9.9 9.98496   
   2020365 -0.0701027 12.4286 12.1684   
      
   This is a binned time-series regression. Datapoints are assigned to   
   bins that contain "similar" points. The average X and Y is computed   
   for each bin and those numbers passed to a time-series sensitive   
   regression. The final statistics are from that regression. In this   
   case the time-series regression found no problems with serial/auto   
   correlation so the output is "the same" as an OLS for the same dataset   
   (with a log transform on the Y data).   
      
   The X data is a "normalized" version of the radar return data. Bright   
   areas on the radar image represent points that have a large   
   return. These might be flat areas of land or ocean, or sea ice. By   
   tuning the model to ignore certain signal strengths some of the   
   clutter (e.g. land or missing satellite data) can be ignored. The   
   normalization involves translating the return strength into "Z scores"   
   that have an average of 0 and standard deviation of 1. I.e. a value   
   of -1 represents a signal around the 16% weakest level detected in the   
   dataset and +1 represents a signal around the 16% strongest in the dataset.   
      
   On that basis the model finds a reduction in signal of 5.4 is   
      
   [continued in next message]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   
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