...@redfish.com] On Behalf Of cody dooderson
Sent: Monday, June 17, 2013 12:42 AM
To: The Friday Morning Applied Complexity Coffee Group
Subject: Re: [FRIAM] pyrocumulus
WARNING this is another shameless SimTable plug.
Simtable has been mapping some of the fire progressions.
The tres
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
Searching nasa cloud top height product gets
http://modis-atmos.gsfc.nasa.gov/MOD06_L2/ and
http://enso.larc.nasa.gov/calipso_cloudsat/pub/journal/Minnis.etal.GRL.08.pdf
which
suggest that they're reading the temperature of the cloud tops from the IR
imagery, and that they calibrated a linear fit
Seems like it should be a standard cell phone camera surveying application
to compute the angular altitude of an object above the horizon and the
range of possible linear altitudes given the range of visible distances
along the azimuth.
Scott is working on this very thing :-) Kind of a
On Mon, Jun 17, 2013 at 2:00 PM, Marcus G. Daniels mar...@snoutfarm.com
wrote:
On 6/17/13 1:48 PM, Roger Critchlow wrote:
Seems like it should be a standard cell phone camera surveying application
to compute the angular altitude of an object above the horizon and the
range of possible
Marcus may have meant calibrated pinhole instead of fisheye.
This is the approach we're using where we click on points in the photo and
then corresponding points in google earth plugin. With 7 points we then
solve for the pinhole camera parameters. Or, in the case that the image is
from cell
Just in case, here's the photosynth site: http://photosynth.net/
One thing that may be lost in all this is that the fire progression maps
are educational tools for incident commanders. History is important. They
can scrub the fire's progress back forth to validate their own evaluation
of the
On 6/17/13 2:47 PM, Roger Critchlow wrote:
Why? Point the camera at the object in question, if you can get an
accurate pose for the camera plane, then the rest is classical
surveying geometry and classical optics.
Aren't the sensors kind of low resolution and noisy?
Looks like Marcus did mean fisheye...cool paper.
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** **
*From:* Friam [mailto:friam-boun...@redfish.com] *On Behalf Of *Merle
Lefkoff
*Sent:* Saturday, June 15, 2013 4:32 AM
*To:* The Friday Morning Applied Complexity Coffee Group
*Subject:* Re: [FRIAM] pyrocumulus
** **
Roger
** **
Hi, I'm working in Bhutan
Lefkoff
Sent: Saturday, June 15, 2013 4:32 AM
To: The Friday Morning Applied Complexity Coffee Group
Subject: Re: [FRIAM] pyrocumulus
Roger
Hi, I'm working in Bhutan. Is there a big fire in New Mexico? Merle
Sent from my iPhone
On Jun 15, 2013, at 12:19 AM, Roger Critchlow r...@elf.org wrote
details will have to come from others. N
** **
*From:* Friam [mailto:friam-boun...@redfish.com] *On Behalf Of *Merle
Lefkoff
*Sent:* Saturday, June 15, 2013 4:32 AM
*To:* The Friday Morning Applied Complexity Coffee Group
*Subject:* Re: [FRIAM] pyrocumulus
** **
Roger
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=81402src=eorss-nh
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