Colorado Radiation Data: Massive Data Gaps since Summer 2015

The following “blogpost soundtrack” might help you with interpreting the significance of the data gaps:

Jan. 19, 2016

Since I live in Colorado, I figured that instead of constantly pointing at all the crazy-high radiation upticks and data gaps all over the European radiation monitoring scene these past few months (see dozens of posts in the Nov.-Dec. 2015 & Jan. 2016 period in my Nuclear Blog Posts Archive), perhaps its time to look at the data from a little closer to home…

If this gorgeous state had the monitor density of Germany, Belgium or The Netherlands, there would be well over 1,000 monitors.  Well, 3 it is…     There are only 3 EPA Radnet monitors in all of Colorado:

  • Grand Junction
  • Denver
  • Colorado Springs

On the upside, that makes it possible to share ’em all in 1 blog post.  I picked the second half of July as a starting point so you can see the massive data gap on the Grand Junction record.   The EPA Radnet’s system will not show more than 400 data points per graph, nor does it allow one to set the y-axis details yourself, making this a far more time-consuming and somewhat annoying process even for relatively short periods.

For what it’s worth, here are the data since July 2015:

  • Grand Junction, Colorado: 

A massive DATA GAP that spans all the way from the second week of August 2015 until the first week of January 2016:


A zoom-in on the  data right before  this giant data gap/abyss:


And right after the daya gap:  Note that the levels (y-axis) are elevated compared to the graph above:


  • Denver, Colorado:

A massive data gap also here, which starts about the same time as in Grand Junction, in early August 2015, at the end of this graph:


But it ends significantly sooner.  After 2 data points in the long data gap period, this monitor comes back online in the second half of October, starting out with what looks like the tail end of a major fallout pattern:


A zoom-in on the period right after the data gap, chopped in pieces (per 400 data points, as per EPA let’s-annoy-the-hell-out-of-researchers policy) to show more detail:


Note the height of this spike (compare y-axis) in the second week of November 2015:




And the past 2 weeks:


  • Colorado Springs, Colorado:

Sprinkled with data gaps throughout:








And the past 2 weeks:


Spot anything interesting, please leave a comment.

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A list of other nuclear-related posts can be found in chronological order

in my Nuclear Blog Posts Archive.

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One Response to Colorado Radiation Data: Massive Data Gaps since Summer 2015

  1. Pingback: European Ozone Hole & Iridescent Clouds Coincide with Radiation Data Gaps and Ongoing Disturbances? | Allegedly Apparent Blog

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