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Atlantic Stratocumulus Transition Experiment
Atmospheric Composition, Weather
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- view all deployment datesDeployment
1992-06-04 1992-06-27 - 11
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The Campaign
The Atlantic Stratocumulus Transition Experiment (ASTEX) was a field investigation that focused on better understanding the physical and radiative properties of boundary layer and marine stratocumulus clouds. ASTEX was part of the First ISCCP Regional Experiment (FIRE) project that occurred from 1986 to 1998. ASTEX consisted of one deployment from May to June 1992 across the Azores Islands. Aircraft, research vessels, and ground-based platforms were used to collect measurements of cloud and aerosol properties. ASTEX was a joint effort between NASA and the Office of Naval Research.
1992-05-29 — 1992-06-23
Azores and Madeira islands
boreal summer
N: 45°N
S: 25°N
W: 30°W
E: 10°W
no campaign DOI available
Additional Notes
Repositories
STRATOCUMULUS
CUMULUS
CLOUDS
CLOUD PROPERTIES
BOUNDARY LAYER
AEROSOLS
DRIZZLE
CLOUD MICROPHYSICS
TURBULENCE
RADIATION
MARINE BOUNDARY LAYER CLOUDS
Slide 1 of 11
Campaign Field Sites
Stationary
60 Campaigns · 165 Instruments
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Earth Science > Atmosphere > Clouds > Cloud Microphysics
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The Ultra-High Frequency (UHF) Wind Profiler is a ground-based Doppler radar. It measures electromagnetic signals to detect wind speed and direction. UHF Wind Profilers operate at the 300-1000 MHz frequency range. Due to operating at a high frequency, they allow for high-resolution wind measurements within the boundary layer.
Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Boundary Layer Winds
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Velocity/speed Profiles
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Direction Profiles
Earth Science > Atmosphere > Atmospheric Winds
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
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If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
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Earth Science > Atmosphere > Atmospheric Radiation
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Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance
Ceilometers are ground-based, remote-sensing sensors that provide measurements of cloud ceilings and vertical visibility. They use either a laser beam or another light source to detect backscatter of clouds, precipitation, and aerosols. Ceilometers can provide detailed and accurate measurements in all types of weather conditions and have low operating costs. Ceilometers are typically used in boundary layer and cloud research applications.
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Base Height
Earth Science > Atmosphere > Air Quality > Visibility
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Ceiling
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Atmosphere > Clouds > Cloud Properties
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height
Earth Science > Spectral/engineering > Lidar > Lidar Backscatter
The Radio Acoustic Sounding System (RASS) is an active ground-based acoustic sounder that provides profiles of virtual temperature. It uses radar techniques to measure acoustic disturbances to derive the virtual temperature. They are typically used in conjunction with radar wind profilers (RWPs) and operate at frequencies of 915 MHz and 1290 MHz. RASS has a sampling rate of around 5 to 15 minutes, a 150 m vertical resolution, and a 60 m horizontal resolution.
Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Boundary Layer Temperature
Earth Science > Atmosphere > Atmospheric Pressure > Planetary Boundary Layer Height
Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature > Vertical Profiles
Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature > Virtual Temperature
Campaign Balloons
69 Campaigns · 21 Instruments
Radiosondes are a balloon-borne instrument package used to collect profile measurements of pressure, temperature, humidity, and winds. These sensors are connected to a radio transmitter that sends the measurements to a ground receiver typically operating in the 400-406 MHz range. They typically provide measurements at 1-6 seconds, depending on the type and manufacturer of the radiosonde. Radiosondes are used for weather forecasting, ground truth satellite data, atmospheric research, and input for weather prediction models.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
Earth Science > Atmosphere > Atmospheric Temperature
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature > Vertical Profiles
Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements
Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature
Earth Science > Atmosphere > Atmospheric Winds
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NASA Earth Resources-2 Aircraft
51 Campaigns · 109 Instruments
The Millimeter-wave Imaging Radiometer (MIR) was a passive airborne cross-track scanning radiometer developed by NASA. MIR measured brightness temperature across nine channels and was used for clouds, precipitation, and atmospheric water vapor studies. MIR operated near and around the following frequencies: 89, 150, 183, 220, and 325 GHz. It had an angular swath of 100 degrees and a sampling frequency of 3 seconds. MIR typically operated on NASA ER-2 aircraft before its retirement.
Earth Science > Spectral/engineering > Infrared Wavelengths > Brightness Temperature
Earth Science > Atmosphere > Precipitation
Earth Science > Spectral/engineering > Microwave > Brightness Temperature
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Atmospheric Water Vapor
The Scanning High-resolution Interferometer Sounder (S-HIS) is an airborne cross-track scanning interferometer developed by the Space Science and Engineering Center at the University of Wisconsin-Madison. It measures the emitted thermal radiation between 3.3 and 18 microns at high spectral resolution. These measurements can be used to derive atmospheric profiles of temperature and water vapor in clear-sky conditions. S-HIS has a spatial resolution of 2 km and a swath width of 40 km at an altitude of 20 km at nadir. It has a sampling frequency of 0.5 s and an absolute radiance accuracy of 0.2 K.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Temperature
Earth Science > Atmosphere > Atmospheric Radiation > Atmospheric Emitted Radiation
Earth Science > Atmosphere > Atmospheric Water Vapor
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Earth Science > Atmosphere > Atmospheric Radiation
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Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
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The MODIS Airborne Simulator (MAS) is an airborne multispectral spectrometer designed to simulate the satellite instrument Moderate-Resolution Imaging Spectrometer (MODIS). MAS operates across 50 spectral channels in the 0.55 to 14.2 μm range to provide high-resolution imagery of clouds and surface features. MAS has a horizontal spatial resolution of 50 m and a swath width of about 36 km at an altitude of 20 km at nadir. It has a scan rate of 6.25 Hz with each scan line containing 716 pixels.
Earth Science > Atmosphere > Atmospheric Radiation
Earth Science > Spectral/engineering > Visible Wavelengths > Visible Imagery
Earth Science > Spectral/engineering > Infrared Wavelengths > Infrared Imagery
Earth Science > Spectral/engineering > Visible Wavelengths > Visible Radiance
Earth Science > Spectral/engineering > Infrared Wavelengths > Infrared Radiance
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
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C-130 Hercules
15 Campaigns · 85 Instruments
If instrument model information is not available, can use this instrument entry for microphysics probes
Earth Science > >
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Earth Science > >
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Earth Science > Atmosphere > Atmospheric Radiation
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
This data will be added in future versions
Earth Science > >
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
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C-131A
Convair C-131 Samaritan
4 Campaigns · 22 Instruments
If instrument model information is not available, can use this instrument entry for microphysics probes
Earth Science > >
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Earth Science > Atmosphere > Atmospheric Radiation
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
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The Johnson-Williams Cloud Water Meter (CWM) is an in situ airborne hot wire probe manufactured by Johnson-Williams, Inc. The CWM measures the liquid water content (LWC) of clouds through an electric circuit that senses resistivity changes from cloud droplets that evaporate from an exposed heated wire. CWM can detect LWC ranges between 0 and 6 grams per cubic meter and operate at airspeeds between 50 and 150 meters per second. It operates at a constant current and has a typical data frequency of 2 Hz.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds > Cloud Microphysics
If instrument mode or detailed specification information is not available, can use this entry for spectrometers of various types. A spectrometer is an instrument that measures a range of a characteristic for a given substance or wavelength. There are many different types of spectrometers. Some examples are mass spectrometers, spectrophotometers, and magnetic radiation spectrometers.
Earth Science > Spectral/engineering > Infrared Wavelengths
Earth Science > Spectral/engineering > Ultraviolet Wavelengths
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
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The Particule Volume Matter (PVM-100A) is an in situ airborne cloud probe manufactured by Gerber Scientific. It measures liquid water content and the effective radius of cloud droplets by measuring the scattering intensity proportional to the droplets' density and particle surface area density. PVM-100A operates at 780 nm and has a measurement rate of up to 5000 Hz. It can measure droplets in the size range of 3-50 μm diameter. The ground-based model of this instrument is PVM-100.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Droplet Concentration/size
Earth Science > Atmosphere > Clouds > Cloud Microphysics
If instrument name or model is not available but documents show that specific chemical compounds or constituents or their properties were observed, can use instrument entry. Examples include: CO, CO2, NO, NO2, N2O, HNO3, HNO4, OH, H2SO4, CH3CN, O3, H2O, halocarbons, VOCs, nitrates, aerosols (including CCN), aerosol optical properties, etc...
Earth Science > >
The Forward Scattering Spectrometer Probe (FSSP) is an in situ airborne optical particle counter originally designed by Particle Measuring Systems, Inc. It provides particle size distribution by measuring the intensity of the light scattered by individual particles within the cloud. FSSP can detect particles within a diameter range of 0.5 to 47 μm. It operates at a wavelength of 633 nm and has a typical sampling frequency of 1 Hz.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics
ARAT
Avion de Recherche Atmospherique Fokker F27
2 Campaigns · 7 Instruments
If instrument model information is not available, can use this instrument entry for microphysics probes
Earth Science > >
This data will be added in future versions.
Earth Science > >
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Radiation
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
If instrument mode or detailed specification information is not available, can use this entry for spectrometers of various types. A spectrometer is an instrument that measures a range of a characteristic for a given substance or wavelength. There are many different types of spectrometers. Some examples are mass spectrometers, spectrophotometers, and magnetic radiation spectrometers.
Earth Science > Spectral/engineering > Infrared Wavelengths
Earth Science > Spectral/engineering > Ultraviolet Wavelengths
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
Nephelometers are in situ airborne or ground-based optical sensors. They measure the total scattering and backscattering of aerosol particles in the atmosphere. Nephelometers operate across three wavelengths: 450 nm, 550 nm, and 700 nm, and have a typical time resolution of 1 Hz.
Earth Science > Atmosphere > Aerosols > Aerosol Forward Scatter
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Extinction
Drifting Buoy
9 Campaigns · 8 Instruments
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Earth Science > Oceans > Ocean Acoustics
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
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Earth Science > >
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
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Valdivia
R/V Valdivia
2 Campaigns · 2 Instruments
Ceilometers are ground-based, remote-sensing sensors that provide measurements of cloud ceilings and vertical visibility. They use either a laser beam or another light source to detect backscatter of clouds, precipitation, and aerosols. Ceilometers can provide detailed and accurate measurements in all types of weather conditions and have low operating costs. Ceilometers are typically used in boundary layer and cloud research applications.
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Base Height
Earth Science > Atmosphere > Air Quality > Visibility
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Ceiling
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Atmosphere > Clouds > Cloud Properties
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height
Earth Science > Spectral/engineering > Lidar > Lidar Backscatter
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
Malcolm Baldrige
R/V Malcolm Baldrige
2 Campaigns · 9 Instruments
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Rain gauges are ground-based instruments that provide in situ measurements of liquid precipitation amounts over a set time. There are multiple types of rain gauges that each collect and record data differently such as the tipping bucket rain gauge and weighing precipitation gauge. Rain gauges can be deployed in various locations due to their relatively small size and easy set-up and are typically colocated with other precipitation instruments such as disdrometers to provide more details about precipitation being collected such as precipitation rate and size distribution.
Earth Science > Atmosphere > Precipitation > Liquid Precipitation
Earth Science > Atmosphere > Precipitation > Precipitation Amount
Earth Science > Atmosphere > Precipitation
Ceilometers are ground-based, remote-sensing sensors that provide measurements of cloud ceilings and vertical visibility. They use either a laser beam or another light source to detect backscatter of clouds, precipitation, and aerosols. Ceilometers can provide detailed and accurate measurements in all types of weather conditions and have low operating costs. Ceilometers are typically used in boundary layer and cloud research applications.
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Base Height
Earth Science > Atmosphere > Air Quality > Visibility
Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Ceiling
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Atmosphere > Clouds > Cloud Properties
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height
Earth Science > Spectral/engineering > Lidar > Lidar Backscatter
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Radiation
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
This data will be added in future versions.
Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
The Ultra-High Frequency (UHF) Wind Profiler is a ground-based Doppler radar. It measures electromagnetic signals to detect wind speed and direction. UHF Wind Profilers operate at the 300-1000 MHz frequency range. Due to operating at a high frequency, they allow for high-resolution wind measurements within the boundary layer.
Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Boundary Layer Winds
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Velocity/speed Profiles
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Direction Profiles
Earth Science > Atmosphere > Atmospheric Winds
If instrument name or model is not available but documents show that specific chemical compounds or constituents or their properties were observed, can use instrument entry. Examples include: CO, CO2, NO, NO2, N2O, HNO3, HNO4, OH, H2SO4, CH3CN, O3, H2O, halocarbons, VOCs, nitrates, aerosols (including CCN), aerosol optical properties, etc...
Earth Science > >
Le Suroît
Research Vessel Le Suroît
2 Campaigns · 5 Instruments
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Earth Science > >
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Radiation
If instrument model or detailed specification information is not available, can use this instrument entry for radiometers of various types (typically microwave-band) that are flown on aircraft.
Earth Science > >
This data will be added in future versions.
Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
R/V Oceanus
3 Campaigns · 12 Instruments
This data will be added in future versions.
Earth Science > >
Rain gauges are ground-based instruments that provide in situ measurements of liquid precipitation amounts over a set time. There are multiple types of rain gauges that each collect and record data differently such as the tipping bucket rain gauge and weighing precipitation gauge. Rain gauges can be deployed in various locations due to their relatively small size and easy set-up and are typically colocated with other precipitation instruments such as disdrometers to provide more details about precipitation being collected such as precipitation rate and size distribution.
Earth Science > Atmosphere > Precipitation > Liquid Precipitation
Earth Science > Atmosphere > Precipitation > Precipitation Amount
Earth Science > Atmosphere > Precipitation
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Radiation
This data will be added in future versions.
Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
If instrument mode or detailed specification information is not available, can use this entry for spectrometers of various types. A spectrometer is an instrument that measures a range of a characteristic for a given substance or wavelength. There are many different types of spectrometers. Some examples are mass spectrometers, spectrophotometers, and magnetic radiation spectrometers.
Earth Science > Spectral/engineering > Infrared Wavelengths
Earth Science > Spectral/engineering > Ultraviolet Wavelengths
Conductivity, Temperature, and Depth (CTD) sensors are in situ instrument packages that are used to measure water depth, pressure, salinity, temperature, and density in the ocean. CTD sensors can be deployed on various water-based platforms such as autonomous underwater vehicles (AUVs), buoys, gliders, or research vessels. When deployed on a vessel, CTD sensors are typically attached to a rosette and then lowered to the seafloor to measure water properties. CTD sensors have a typical sampling rate of 30 Hz and can collect precise measurements for a specific water depth depending on the researcher's needs.
Earth Science > Oceans > Ocean Pressure > Water Pressure
Earth Science > Oceans > Bathymetry/seafloor Topography > Water Depth
Earth Science > Oceans > Salinity/density > Conductivity
Earth Science > Oceans > Salinity/density > Density
Earth Science > Oceans > Salinity/density > Salinity
Earth Science > Oceans > Ocean Temperature > Water Temperature
Earth Science > Oceans > Salinity/density
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
If instrument name or model is not available but documents show that specific chemical compounds or constituents or their properties were observed, can use instrument entry. Examples include: CO, CO2, NO, NO2, N2O, HNO3, HNO4, OH, H2SO4, CH3CN, O3, H2O, halocarbons, VOCs, nitrates, aerosols (including CCN), aerosol optical properties, etc...
Earth Science > >
Events
1 Deployment
1 IOP
Office of Naval Research, NSF, Department of the Navy (DoN)
World Climate Research Program
NID
Bruce Albrecht, Barry J. Huebert
Al Schanot
Currently unavailable
DoD, DoE, NOAA, NSF
Currently unavailable