5.3.5 Level 2 processing
Is the atmospheric radiation originated from the
wings of far lines that are not properly
modelled by the Voigt line-profile.
Is the "minimum" set of spectral points
actually required to reconstruct the
high-resolution atmospheric emission spectrum. A
more exhaustive definition is in the section
dealing with the dependence of the radiative
transfer on spectral frequency.
"Limb - Scan" has the same meaning of
It indicates a scan of the atmospheric limb,
made by varying the angle of the elevation
mirror while the azimuth mirror remains at a
fixed angle. See pointing for more information.
Limb Scanning sequence:
Is the same as "Limb - Scan" and as
Corresponds to the acquisition of an
interferogram (and therefore of a spectrum).
While the interferogram is acquired, the input
telescope of MIPAS (including elevation mirror
and azimuth mirror) views at a fixed atmospheric
parcel in the limb. A limb-scan is constituted of
sveral limb-views (16 limb-views in the standard scan).
Narrow spectral interval (less than 3
cm-1 width) containing major
information on the target parameters to be retrieved.
Set of altitudes in correspondence of which a
given atmospheric distribution is retrieved (see
also "Retrieval vertical grid 220.127.116.11.3.4.4. "
The definition of the sinc function
Pressure in correspondence of the tangent point
of a particular limb observation angle.
Residual additive offset (on the spectra) that
could remain uncorrected from Level 1b 18.104.22.168. processing. In
the retrieval algorithm this offset is assumed
as limb-view 5.3.5. independent and microwindow dependent and
it is retrieved.
Keywords: ESA European
Space Agency - Agence spatiale europeenne,
observation de la terre, earth observation,
satellite remote sensing,
teledetection, geophysique, altimetrie, radar,
chimique atmospherique, geophysics, altimetry, radar,