NOWCAST

NOWCAST CONFERENC E NOTEBOOK The following papers were presented at the Fifth Symposium on Fire and Forest Meteorology, 16-20 Novem- ber 2003, in Orlando, Florida. because most analysis procedure was then ap- remote-sensing plied to a sequence of high-fre- instrument s quency (60 Hz), high-resolution cannot capture (0.375 x 0.8 m), two-dimensional the convective infrared imagery to derive wind processes that fields, fire-spread rates, and verti- determin e cal sensible-heat fluxes in this crown-fir e plane. spread, which Th e overall picture that change rapidly emerges from this analysis is dy- (within tenths of namically complex and defies the a second) and commonl y held notion of one on small scales large convective plume or many FIG. I. Crown fire climbing the forested slope toward of motion (un- tree-scale plumes that rise sepa- the right near Chatanika, Alaska, during FROSTFIRE der 1 m). We rately, simply accelerating due to in July 1999. This is also the perspective of the infrared imager. have used an in- buoyancy. Instead, we observed a frared imager to sequence of surges of many con- detect high-temperature regions vective plumes on a scale larger EXPLORING EXPLOSIVE CROWN produced by incandescent soot FIRES than individual trees. We http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
D.O.I.
10.1175/1520-0477-84.12.1661
Publisher site
See Article on Publisher Site

Abstract

CONFERENC E NOTEBOOK The following papers were presented at the Fifth Symposium on Fire and Forest Meteorology, 16-20 Novem- ber 2003, in Orlando, Florida. because most analysis procedure was then ap- remote-sensing plied to a sequence of high-fre- instrument s quency (60 Hz), high-resolution cannot capture (0.375 x 0.8 m), two-dimensional the convective infrared imagery to derive wind processes that fields, fire-spread rates, and verti- determin e cal sensible-heat fluxes in this crown-fir e plane. spread, which Th e overall picture that change rapidly emerges from this analysis is dy- (within tenths of namically complex and defies the a second) and commonl y held notion of one on small scales large convective plume or many FIG. I. Crown fire climbing the forested slope toward of motion (un- tree-scale plumes that rise sepa- the right near Chatanika, Alaska, during FROSTFIRE der 1 m). We rately, simply accelerating due to in July 1999. This is also the perspective of the infrared imager. have used an in- buoyancy. Instead, we observed a frared imager to sequence of surges of many con- detect high-temperature regions vective plumes on a scale larger EXPLORING EXPLOSIVE CROWN produced by incandescent soot FIRES than individual trees. We

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Dec 1, 2003

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