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AVIRIS is an acronym for the
Airborne Visible InfraRed Imaging Spectrometer. AVIRIS is a world class
instrument in the realm of Earth Remote Sensing. It is a unique optical
sensor that delivers calibrated images of the upwelling spectral radiance
in 224 contiguous spectral channels (also called bands) with wavelengths
from 400 to 2500 nanometers (nm). The instrument flies aboard a NASA ER-2
airplane (a U2 plane modified for increased performance) at approximately
20 km above sea level, at about 730 km/hr. AVIRIS has flown all across
the US, plus Canada and Europe.
The science objectives of the AVIRIS
project are broad. In a nutshell, the main objective is to identify, measure,
and monitor constituents of the Earth's surface and atmosphere based on
molecular absorption and particle scattering signatures. Research with
AVIRIS is dominantly directed towards understanding processes related to
the global environment and climate change.
AVIRIS research areas include:
Ecology
Oceanography
Geology
Snow hydrology
Cloud and atmospheric studies
The role of the Jet Propulsion Laboratory
in the AVIRIS project is threefold:
1. Principal investigator
2. Instrument in-house
design, fabrication, testing, and calibration
3. Ground processing
algorithms, software development, and data distributions
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