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Transport and Atmospheric Chemistry near the Equator
Atmospheric Composition
- 2
- view all deployment datesDeployments
1992-09-02 1992-10-26 2001-02-24 2001-04-15 - 4
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The Campaign
The Transport and Atmospheric Chemistry near the Equator (TRACE) campaign studied chemical composition and aerosols in a tropical atmosphere. TRACE had two deployments. The Transport and Atmospheric Chemistry near the Equator-Atlantic (TRACE-A) deployment took place during September-October 1992 over the southern Atlantic. The Transport and Chemical Evolution over the Pacific (TRACE-P) deployment occurred during February-April 2001 over the Pacific. Airborne observations were taken of aerosols and atmospheric parameters. Ozone measurements were also taken by ozonesondes on balloons. Measurements were supplemented by satellite data and model outputs. TRACE was part of the Global Tropospheric Experiment (GTE).
1992-09-02 — 2001-04-15
Brazil, Southern Africa, Tropical Atlantic, Central & Western Regions of the Pacific Ocean Basin
austral spring, boreal spring, boreal summer
N: 50°N
S: 39°S
W: 52°W
E: 170°E
Additional Notes
Repositories
Unpublished
TROPOSPHERIC OZONE
OZONE PRODUCTION AND TRANSPORT
AIR QUALITY
BIOMASS BURNING
TROPOSPHERIC COMPOSITION
TRACE GASES
CONVECTION
GTE
Slide 1 of 5
Douglas DC-8
36 Campaigns · 168 Instruments
The Differential Absorption Carbon monOxide Measurements (DACOM) is an airborne in situ spectrometer system. It uses the differential absorption technique and an infrared tunable diode laser (TDL) to collect measurements of nitrous oxide (N2O), carbon dioxide (CO2), carbon monoxide (CO), and methane (CH4) in the atmosphere. DACOM operates across the 4.7, 4.5, and 3.3 μm wavelengths to access the absorption lines for CO, N2O, and CH4. It has a measurement frequency of 5 Hz and a precision of about 1 ppbv.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Methane
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Monoxide
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
A dropsondes or dropwindsondes are in situ instruments designed to be released from aircraft. They are equipped with Global Positioning System (GPS) receivers and sensors to collect profile measurements of pressure, temperature, humidity, wind speed, and direction. Dropsondes are important during field investigations because they allow researchers to collect vertical profiles in remote locations and during severe weather events. Dropsondes typically have a vertical resolution of 5 m and provide measurements of wind speed/direction every 0.25 seconds and temperature, pressure, and humidity every 0.5 seconds.
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
Earth Science > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Velocity/speed Profiles
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles > Wind Direction Profiles
Earth Science > Atmosphere > Atmospheric Temperature
The Differential Absorption Lidar (DIAL) is an airborne lidar system designed at NASA’s Langley Research Center (LaRC). It uses four lasers to detect lidar backscatter to provide profile measurements of ozone and aerosols in the atmosphere. DIAL operates in the ultraviolet (289-300 nm) for ozone measurements and operates in the visible (572-600 nm) and infrared (1064 nm) for aerosols. It has a horizontal spatial resolution of approximately 15 km and has a measurement accuracy of 5 ppbv.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Spectral/engineering > Lidar > Lidar Backscatter
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Spectral/engineering > Lidar > Lidar Depolarization Ratio
This data will be added in future versions
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 > >
Bandeirante
Embraer EMB 110 Bandeirante
2 Campaigns · 6 Instruments
Aethalometer is an in situ aerosol instrument manufactured by Magee Scientific that can be deployed on either airborne or ground-based platforms. It samples aerosols through a filter tape and measures the attenuation of transmitted light to determine the concentration of black carbon particles. The Aethalometer operates across seven optical wavelengths (370, 470, 520, 590, 660, 880, and 950 nm) and can provide data at a rate of 1 Hz. It has a measurement range of 0-500 μg per cubic meter and a resolution of 0.1 μg per cubic meter.
Earth Science > Atmosphere > Aerosols > Carbonaceous Aerosols
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
This data will be added in future versions
Earth Science > >
The Condensation Nuclei Counter (CNC) is optical method for
counting atmospheric aerosol particles.
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 > >
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
Campaign Balloons
65 Campaigns · 22 Instruments
This data will be added in future versions.
Earth Science > Atmosphere > Air Quality > Tropospheric Ozone
Douglas DC-8
36 Campaigns · 168 Instruments
A TUNABLE DIODE LASER is a solid-state laser in which as lasing is achieved by passing an injection current through the active region of a semiconductor across the p-n junction; tunable meaning it is used with a technique based upon the measurement of light absorption upon irrigating a sample using a tunable laser source.
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
The High-Performance Liquid Chromatograph (HPLC) is an in situ ground-based analyzer that is used to separate and identify components within a sample of air or mixture. It achieves this by injecting a liquid within the sample causing different flow rates for each component as they flow out of the column. As each component exits the column, their concentrations are measured at a high resolution. In Earth science research, HPLC is typically used to determine various trace species in the atmosphere such as formaldehyde, hydrogen peroxide, and volatile organic compounds (VOCs). HPLC is commonly used for laboratory analysis and ground-based measurements, but it can be used for airborne measurements as well.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Formaldehyde
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds
Earth Science > Atmosphere > Air Quality > Volatile Organic Compounds
Earth Science > Atmosphere > Air Quality
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroperoxy
The Diode Laser Hygrometer (DLH) is an in situ airborne hygrometer developed by NASA’s Langley Research Center (LaRC). It uses tunable diode laser absorption to measure water vapor in the atmosphere. DLH operates in the near-infrared region at around 1.4 μm and has a measurement frequency of 100 Hz. It can provide accurate measurements of water vapor even while flying through clouds.
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity > Relative Humidity
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity
This data will be added in future versions
Earth Science > >
The Differential Absorption Lidar (DIAL) is an airborne lidar system designed at NASA’s Langley Research Center (LaRC). It uses four lasers to detect lidar backscatter to provide profile measurements of ozone and aerosols in the atmosphere. DIAL operates in the ultraviolet (289-300 nm) for ozone measurements and operates in the visible (572-600 nm) and infrared (1064 nm) for aerosols. It has a horizontal spatial resolution of approximately 15 km and has a measurement accuracy of 5 ppbv.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Spectral/engineering > Lidar > Lidar Backscatter
Earth Science > Atmosphere > Aerosols > Aerosol Backscatter
Earth Science > Spectral/engineering > Lidar > Lidar Depolarization Ratio
The Cloud Aerosol and Precipitation Spectrometer (CAPS) is an in situ airborne spectrometer manufactured by Droplet Measurement Technologies. It combines the Cloud Imaging Probe (CIP), the Cloud and Aerosol Spectrometer (CAS), and the Hotwire Liquid Water Content (LWC) Sensor into one instrument. CAPS measures the size distribution of aerosol, cloud, and liquid droplets for particles between the sizes of 50-1600 μm at a time resolution of 1 Hz. It can also record images of cloud particles and provide measurements of temperature, pressure, and LWC.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Precipitation > Droplet Size
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Droplet Concentration/size
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Precipitation
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/ice
Earth Science > Atmosphere > Clouds
The GC-MS instrument is a combination of two instruments: a gas chromatograph and a mass spectrometer. It is used on airborne platforms to study atmospheric chemistry, specifically non-methane halocarbons and volatile organic compounds.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Non-methane Hydrocarbons/volatile Organic Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Halocarbons
This data will be added in future versions
Earth Science > >
NOx/NOxy is an in situ chemiluminescence instrument. It provides measurements of nitrogen oxides and ozone in the atmosphere at a spatial resolution better than 100m for typical DC-8 research flight speeds. NOx/NOxy can be utilized on ground-based, airborne, and shipborne platforms allowing it to be used in various types of atmospheric chemistry and air quality studies.
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Oxides
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Air Quality > Nitrogen Oxides
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
The Condensation Nuclei Counter (CNC) is optical method for
counting atmospheric aerosol particles.
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 > >
P-3 Orion
17 Campaigns · 104 Instruments
The Optical Particle Counter is an instrument based on the principle of light scattering from particles. It is a real time instrument that is typically used to measure particles above 0.05 μm in diameter.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Particulate Matter
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
A TUNABLE DIODE LASER is a solid-state laser in which as lasing is achieved by passing an injection current through the active region of a semiconductor across the p-n junction; tunable meaning it is used with a technique based upon the measurement of light absorption upon irrigating a sample using a tunable laser source.
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
The Particle Into Liquid Sampler (PILS) is an in situ aerosol sampler manufactured by Brechtel Manufacturing Inc. PILS can be utilized by both ground-based and airborne platforms to collect continuous measurements of ambient aerosol bulk composition. The particles sampled by PILS are mixed with saturated water vapor to produce droplets that are analyzed by either an ion chromatograph (IC) or a total organic carbon detector (TOC). PILS can measure aerosol particles with a size range of 70 nm to 2.5 μm and has a time resolution of 3 min for airborne measurements and 15 min for ground-based.
Earth Science > Atmosphere > Aerosols > Sulfate Particles
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Organic Particles
Earth Science > Atmosphere > Aerosols > Nitrate Particles
Earth Science > Atmosphere > Aerosols > Particulate Matter
Earth Science > Atmosphere > Aerosols > Chemical Composition
The Chemical Ionization Mass Spectrometer was developed by NOAA. This instrument can take high-precision measurements of gases such as nitric acid, water vapor, and hydrochloric acid. This instrument was designed to take measurements accurately in the boundary layer. The detection limit for CIMS is in the parts-per-trillion range, and the temporal resolution is 50s.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Acid
This data will be added in future versions
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
Earth Science > >
The GC-MS instrument is a combination of two instruments: a gas chromatograph and a mass spectrometer. It is used on airborne platforms to study atmospheric chemistry, specifically non-methane halocarbons and volatile organic compounds.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Non-methane Hydrocarbons/volatile Organic Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Halocarbons
NOx/NOxy is an in situ chemiluminescence instrument. It provides measurements of nitrogen oxides and ozone in the atmosphere at a spatial resolution better than 100m for typical DC-8 research flight speeds. NOx/NOxy can be utilized on ground-based, airborne, and shipborne platforms allowing it to be used in various types of atmospheric chemistry and air quality studies.
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Oxides
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Dioxide
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Air Quality > Nitrogen Oxides
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
This data will be added in future versions
Earth Science > >
The Condensation Nuclei Counter (CNC) is optical method for
counting atmospheric aerosol particles.
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
2 Deployments
1 IOP
2 Significant Events
NASA
Upper Atmospheric Research, Tropospheric Composition, Global Tropospheric Chemistry
V. Connors, Richard J. Bendura
Jack Fishman
Gao Chen, Joseph Drewry
Currently unavailable
Currently unavailable
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