with a
spectral resolution betwen 0.25 and 0.5 cm .
The parameters measured by IASI (in either standalone mode
or in concert wiht other EPS instruments) are temperature
profiles, water vapor profiles, surface characteristics
(e.g. temperature, emissivity, etc.), cloud parameters
(e.g. top pressure and temperature, effective amount) and
column integrated and vertical information of some minor
constituents (e.g. O 
, CO, CH 
, N 
O, etc.).
The primary objectives of the EPS mission are in the
areas of operational meteorology and climate monitoring,
but the system will also support research in the areas of
meteorology and global change.
See the
IASI Web site.
.
W. It adjoins the waters
of the Norwegian Sea to the
east, the Greenland Sea to
the north, the Denmark Strait to the west, and the
North Atlantic Ocean to the south.
The average depth of this region is about 1128 m.
In the summer, the volume of the Iceland Sea is composed of about 60% Greenland Sea Deep Water (GSDW), 30% upper and lower Arctic Intermediate Water (AIW), with the remaining 10% distributed among the Polar Intermediate Water (PIW), - surface water masses (i.e. Polar Water (PW), Atlantic Water (AW), and Arctic Surface Water (ASW)). See Swift (1986) and Hopkins (1991).
where P is the pressure, 
the density and
T the temperature. 
is the gas constant for
dry air and equal to 287.053 JK kg or
0.287053 kPaK m 
kg . This can also be used for
calculations with moist air via the
virtual temperature
concept.