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FIRE-II
Contact: Taneil Uttal
The objective of Phase-2 of the
First ISCCP Regional Experiment (FIRE)
is
to examine mid-continental cirrus clouds and how they affect the amount of
radiant energy passing through the atmosphere. Cirrus, by virtue of their
high altitudes and extensive coverage, have been identified as major factors
in determining global climate. The FIRE-II field project gathered a large
number of diverse remote sensors and research aircraft to examine cirrus
clouds over Coffeyville, Kansas, in late 1991. ETL used its
NOAA/K
cloud radar,
microwave
and infrared radiometers, and an infrared lidar at the field
site. The ETL research has included the development of techniques that
combine measurements from these ground-based instruments to estimate the
cirrus ice particle sizes, concentrations, and mass contents, in addition to
monitoring the heights and thicknesses of the cloud layers.
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