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Airborne Icing Instrumentation Evaluation
Atmospheric Composition, Weather
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2009-03-01 2009-04-30 - 1
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The Campaign
The Airborne Icing Instrumentation Evaluation (AIIE) was a field investigation led by Environment Canada to assess the accuracy of ice cloud microphysical properties and to enhance understanding of small ice particles in clouds. AIIE carried out a single deployment in March-April 2009 over Ottawa, Canada. The National Research Council (NRC) Convair-580 aircraft was equipped with multiple cloud probes to measure the concentration, size, and habit of small ice particles. AIIE was funded by Environment Canada, NRC, Transport Canada, and NASA.
2009-03-01 — 2009-04-30
Ottawa, Canada
boreal spring
N: 46°N
S: 44°N
W: 76°W
E: 74°W
Additional Notes
Repositories
Unpublished
ICE CLOUD MICROPHYSICS
ICE PARTICLE CONCENTRATION
ICE PARTICLE SIZE
ICE PARTICLE HABIT
ICE PARTICLE SHATTERING
ICE WATER CONTENT
ICE CLOUDS
ICE CLOUD PROPERTIES
SMALL ICE PARTICLES
Slide 1 of 1
Convair-580
9 Campaigns · 49 Instruments
LI-COR Gas Analyzers are in situ gas analyzers manufactured by LI-COR. They can be deployed on aircraft, research vessels, vehicles, balloons, and ground-based platforms. They provide measurements of trace gases such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor (H2O). Most models use Optical Feedback-Cavity Enhanced Absorption Spectroscopy (OF-CEAS) to collect measurements. LI-COR gas analyzers have a typical measurement rate of 1 Hz and an operating temperature range of -25 to 45 degrees Celsius.
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Ammonia
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Methane
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous Oxide
Generic-Atmospheric State (Gen-AtmsState) refers to non-specific instruments on a platform that measure atmospheric state parameters. These are typically in situ sensors that measure temperature, pressure, humidity, and wind speed and direction. Types of atmospheric state instruments include thermometers, hygrometers, barometers, and anemometers.
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity
Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Wind Direction
Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Wind Speed
Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements
Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Direction
Earth Science > Atmosphere > Atmospheric Temperature
Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Speed
Earth Science > Atmosphere > Atmospheric Winds
The Nevzorov Probe is an in situ airborne hot-wire probe that measures clouds' liquid water content (LWC) and total water content (TWC). It determines LWC and TWC by detecting heat loss from its two sensors caused by evaporation of cloud water and convective heat transfer. Operating at a constant temperature of 90 degrees Celsius, it can measure LWC and TWC in the range of 0.005 to 3 grams per cubic meter. The Nevzorov Probe provides measurements every second with an accuracy of 10%.
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
The King Probe is an in situ airborne cloud instrument developed by Warren King (Commonwealth Scientific and Industrial Research Organisation) and produced by Particle Measuring Systems (PMS) and Droplet Measurement Technologies (DMT). It measures cloud liquid water content (LWC) by detecting the heat released during droplet vaporization. It operates at a constant temperature of about 100°C and provides data at 1 to 10 Hz. The probe is commonly used in studies of cloud microphysics and aircraft icing.
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds
The Cloud Imaging Probe (CIP) is an in situ airborne optical array probe manufactured by Droplet Measurement Technologies. It captures images of cloud particles by recording shadows as they pass through a laser beam. It also provides data on particle size distribution and cloud liquid water content. CIP typically has a resolution of 25 μm and can measure particles ranging from 12.5 μm to 1.55 mm.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
The Cloud Spectrometer and Impactor (CSI) is an in-situ airborne instrument that measures total condensed water (TCW) content in clouds. It combines a counterflow virtual impactor (CVI) with a lightweight cloud droplet probe. It measures cloud particles ranging from 2 to 50 μm and typically operates at a sampling frequency of 1 second.
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
The Cloud Extinction Probe (CEP) is an in-situ airborne instrument developed by Environment Canada. It uses transmissometry to directly measure light attenuation between the transmitter and receiver to determine extinction coefficients in clouds and precipitation. The optical system in the CEP operates at a wavelength of 0.635 μm. It can operate in all weather conditions and has been used to measure extinction coefficients in ice clouds.
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
The Rosemount Icing Detector (RICE) is an in-situ airborne probe developed by Rosemount Inc. It uses magnetostrictive oscillation to detect frequency changes caused by ice accumulating on the sensing cylinder. These frequency changes are related to the rate of ice accumulation, which helps determine the liquid water content. RICE typically samples every second.
Earth Science > Atmosphere > Clouds > Cloud Properties
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
Ka-band radars operate in the 27-40 GHz range and are highly sensitive to small cloud particles due to their short wavelengths. This sensitivity makes them well-suited for observing light precipitation, early cloud formation, non-precipitating clouds, and fog. Ka-band radars can provide high-resolution vertical profiles and are used in both ground-based and airborne operations.
Earth Science > Spectral/engineering > Radar > Doppler Velocity
Earth Science > Spectral/engineering > Radar > Radar Reflectivity
Earth Science > Spectral/engineering > Radar
Earth Science > Spectral/engineering > Radar > Spectrum Width
The Forward Scattering Spectrometer Probe (FSSP) is an in situ airborne optical particle counter developed by Particle Measuring Systems, Inc. It measures particle size distribution by detecting the light intensity scattered by individual particles within a cloud. The FSSP detects particles ranging from 0.5 to 47 μm in diameter. It operates at a wavelength of 633 nm and typically samples at a rate of 1 Hz.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics
The 2D-C/P Hydrometeor Imaging Probe is an in situ, airborne instrument that captures images of hydrometeors. It records these images by detecting the illuminated or shadowed states of the photodiode array as the hydrometeors' shadows pass over it. The 2D-C/P also provides measurements of particle size distribution, cloud droplet concentration, and hydrometeor shape. Typically, 2D-C/P probes have an image resolution of 25 micrometers and can image hydrometeors with diameters up to 1600 micrometers.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Droplet Concentration/size
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Precipitation > Hydrometeors
Earth Science > Atmosphere > Precipitation
Earth Science > Atmosphere > Clouds
The 2D-Stereo Particle Probe (2D-S) is an in situ airborne optical imaging device developed by SPEC Inc. It uses two diode-laser beams to produce stereo images of cloud particles through linear-array shadowing. These images enable determination of cloud particle size distribution, particle number concentration, and ice or liquid water content. 2D-S has a resolution of 10 µm and can measure hydrometeors from 25 to 1280 µm.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Aerosols > Aerosol Extinction
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
Events
1 Deployment
1 IOP
Environment Canada, FAA, NASA, Transport Canada
Currently unavailable
Currently unavailable
Alexei Korolev
Currently unavailable
Unpublished
NASA, NCAR, NOAA, NRC