Abstract
The foreign-broadened continuum of water vapor in the
band
,
is important for satellite-based retrievals of water vapor in the upper troposphere,
where temperatures are below
. Continuum coefficients have previously been
measured mostly at or above
. We present continuum coefficients in the
band
retrieved from measurements made in Antarctica at temperatures near
: atmospheric
transmission at South Pole Station and atmospheric emission at Dome C. The continuum
coefficients derived from these measurements are generally in agreement with the widely
used Mlawer, Tobin–Clough, Kneizys, Davies continuum. Differences are at most
, corresponding to a
relative
error in retrieved upper-tropospheric humidity.
© 2006 Optical Society of America
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