Roger, After seeing this, I sent a question to the quoted researcher, Scott Bachmeier, about his method for calculating plume height. I asked if it was based on from a single image using sun angle and shadows, multiple offset satellite images or ground triangulation His reply just came in:
"I was using a Cloud Top Height product derived using POES AVHRR data. Actually, I fear that one of my emails was misquted: I think those numbers referred to the Silver fire on the following day!" Here's a NOAA page on AVHRR: http://www.class.ngdc.noaa.gov/data_available/avhrr/index.htm I skimmed the page but don't completely grok how height is estimated from the measurements. -S On Fri, Jun 14, 2013 at 9:19 PM, Roger Critchlow <r...@elf.org> wrote: > Here's a pyrocumulus over the Silver fire estimated at 6-7 miles (31-37 > thousand feet), though I don't know how he worked out the angles from > Wisconsin. > > > http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=81402&src=eorss-nh > > -- rec -- > > ============================================================ > FRIAM Applied Complexity Group listserv > Meets Fridays 9a-11:30 at cafe at St. John's College > to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com >
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