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IIBR
research projects incorporate modeling and measurement
of electromagnetic interactions with atmospheric constituents.
The influence of gases and aerosols on radiation from
the UV to the MMW is assessed by commercially available
computer codes like MODTRAN and HITRAN as well as by IIBR's
models. Innovative in-house techniques for light scattering
from non-regular shapes and structures enable the evaluation
of atmospheric pollutant concentration and particle size
from spectral measurements.
Another topic studied is the effect of aerosols on radiation
transfer in the atmosphere. Several smoke chambers and
computerized image analyses are used to characterize the
size and geometry of droplets and particles. IIBR’s
advanced electro-optical systems for detection, identification
and temporal and spatial mapping of aerosols and gaseous
pollutants, involve several technologies. Active and passive
technologies allow measurements to range from in-situ
observation to remote sensing at distances of up to several
kilometers: |
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LIDAR (YAG, CO2)
for rapid spectral and spatially detailed monitoring
Radiometers and portable FTIR
to cover the spectral range of most hazardous gases
Multi-spectral infrared imager
(a passive remote sensing technique) for mapping and
monitoring gaseous clouds
Novel algorithms to enable
rapid mapping for both techniques |
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The
unique capabilities of IIBR stem from the integration
of these systems with point analyzers/counters for aerosols
and gases. The point analyzers are used to evaluate the
performance and operating mode of the electro-optical
systems in realistic scenarios. |
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Activities |
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Computerized particle analysis
Aerosol sampling and analysis
Investigation of obscurant
effects on electro-optical devices
Feasibility studies of remote
sensing systems for various scenarios
Integration and evaluation
of remote sensing systems to monitor air pollutants |
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| LIDAR
System (outside look) |
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