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Atmospheric Chemistry of Combustion Emissions Near the Tropopause
Atmospheric Composition
- 3
- view all deployment datesDeployments
1999-09-03 1999-10-08 1999-03-25 1999-04-24 2000-09-01 2000-09-15 - 3
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- 0
- Data Products
The Campaign
The Atmospheric Chemistry of Combustion Emissions Near the Tropopause (ACCENT) was a multi-agency field investigation that focused on atmospheric chemistry effects due to aircraft and rocket emissions. ACCENT consisted of three deployments based out of Houston, Texas during the boreal spring and fall from 1999 to 2000. The NASA WB-57 aircraft was equipped with several instruments to collect measurements of aerosols and trace gasses in the upper troposphere and lower stratosphere. ACCENT was supported by NASA’s Atmospheric Effects of Aircraft Program (AEAP) and the United States Air Force’s Rocket Impacts on Stratospheric Ozone (RISO) program.
ACCENT-II
1999-03-25 — 2000-09-15
Southern United States
boreal fall, boreal spring
N: 40°N
S: 20°N
W: 120°W
E: 80°W
no campaign DOI available
- ESPO Data Archive for ACCENT
- EOS Article on the ACCENT Campaign
Additional Notes
Repositories
other NASA repository not formally considered a DAAC by ESDS
AIRCRAFT EMISSIONS
ROCKET EMISSIONS
COMBUSTION EMISSIONS
OZONE
OZONE CHEMISTRY
METHANE
AEROSOLS
TRACE GASES
UPPER ATMOSPHERIC CHEMISTRY
ATMOSPHERIC CHEMISTRY
UPPER TROPOSPHERE
LOWER STRATOSPHERE
Slide 1 of 6
Campaign Field Sites
Stationary
57 Campaigns · 160 Instruments
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance
Campaign Balloons
65 Campaigns · 22 Instruments
The NOAA Frost Point Hygrometer (FPH) is a balloon-borne sensor that collects profile measurements of atmospheric water vapor. It uses the chilled-mirror principle to measure the frost or dew point temperature up to 28 km in the atmosphere. FPH takes measurements at a vertical resolution of 5-10 m and a temporal resolution of 1-2 seconds.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Dew Point Temperature
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
Earth Science > Atmosphere > Atmospheric Temperature
NASA WB-57
15 Campaigns · 75 Instruments
The Microwave Temperature Profiler (MTP) is an airborne microwave radiometer developed by the Jet Propulsion Laboratory and later modified by NCAR. It measures thermal emissions from oxygen molecules in the atmosphere to prove temperature profiles above, below, and at flight level. It operates between 55 to 59 GHz and provides profiles every 17 seconds with 4 km horizontal spacing. MTP has a vertical resolution of 150 m near the aircraft.
Earth Science > Spectral/engineering > Microwave > Brightness Temperature
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 > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Temperature
This data will be added in future versions
Earth Science > Atmosphere > Aerosols > Aerosol Extinction
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Carbon Tetrachloride
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 > Halocarbons And Halogens > Halons
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrous Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Chlorofluorocarbons
This data will be added in future versions
Earth Science > >
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance
This data will be added in future versions.
Earth Science > >
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 Analysis by Laser Mass Spectrometry (PALMS) is a laser ionization mass spectrometer owned and operated by NOAA. PALMS provides in situ measurements of aerosol particles and their chemical composition by using a pulse from a UV laser (193 nm) to generate ions. These ions are then analyzed with a time-of-flight mass spectrometer to provide the mass spectrum of each particle which can be used to classify the individual aerosol particles. PALMS has an aerosol size range of 0.2 to 3 microns and has a typical data rate of around 1 to 10 Hz. It can be utilized for either airborne or laboratory measurements of aerosols.
Earth Science > Atmosphere > Aerosols > Chemical Composition
Earth Science > Atmosphere > Aerosols
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens
The Whole Air Sampler (WAS) is an airborne in-situ instrument that collects samples of air for analysis of trace gases, such as nonmethane hydrocarbons (NMHCs), Halocarbons, Alkyl Nitrates, and various sulfur compounds that are present in the troposphere. Air samples collected via the WAS then undergo gas chromatography and mass spectrometry to determine which gasses are present in the sample. The WAS collects samples every minute, which enables scientists to get a clear picture of the chemical composition of the environment as research aircraft pass through.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Non-methane Hydrocarbons/volatile Organic Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Dimethyl Sulfide
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Halocarbons
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Carbonyl Sulfide
Earth Science > Atmosphere > Aerosols > Nitrate Particles
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds
The Condensation Nuclei Counter (CNC) is optical method for
counting atmospheric aerosol particles.
Earth Science > >
The NOAA Dual-Beam UV-Absorption Ozone Photometer (NOAA-O3) is an in situ optical balloon-borne and airborne instrument that measures ozone concentrations in the troposphere and lower stratosphere. It operates at the 254 nm wavelength allowing it to calculate the ozone number density due to the accurate ozone absorption cross section at that wavelength. It has a sampling rate of 2 Hz and a horizontal resolution of 100 to 200 meters at typical research flight speeds.
Earth Science > Atmosphere > Air Quality > Tropospheric Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Air Quality
Earth Science > Atmosphere > Atmospheric Chemistry
The Nucleation-mode Aerosol Size Spectrometer (NMASS) is an airborne, in situ spectrometer used to measure particle size distribution and cloud condensation nuclei (CCN). NMASS consists of 5 parallel condensation nucleus counters (CNCs) that are used to sample particles within the 3 to 60 nm diameter range. It can be equipped on multiple types of aircraft and is ideal for sampling cirrus clouds in the upper atmosphere. NMASS provides fast time response measurements at a temporal resolution of 10 Hz.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Condensation Nuclei
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
The Focused Cavity Aerosol Spectrometer (FCAS) is an in situ airborne optical particle counter designed by Particle Measuring Systems, Inc. FCAS measures the light scattered by the individual aerosol particles to determine the particle size distribution. It can detect aerosol particles in the size range of 0.06 to 2 μm and can operate at altitudes up to 20 km. Typically, FCAS provides measurements at a sampling rate of 10 seconds.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
The JPL Laser Hygrometer (JLH) is an in situ airborne hygrometer developed at the Jet Propulsion Laboratory (JPL). It uses a tunable diode laser that operates at 1.37 μm to measure atmospheric water vapor in the upper troposphere and lower stratosphere. JLH has a minimum spatial resolution of 25 m and a detection range of 1 to 500 ppmv. It has a typical sampling rate of 1 Hz and can provide measurements at a precision of 0.05 ppmv.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor
The NOAA Frost Point Hygrometer (FPH) is a balloon-borne sensor that collects profile measurements of atmospheric water vapor. It uses the chilled-mirror principle to measure the frost or dew point temperature up to 28 km in the atmosphere. FPH takes measurements at a vertical resolution of 5-10 m and a temporal resolution of 1-2 seconds.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Dew Point Temperature
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
This description will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
This description will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
NASA WB-57
15 Campaigns · 75 Instruments
The Microwave Temperature Profiler (MTP) is an airborne microwave radiometer developed by the Jet Propulsion Laboratory and later modified by NCAR. It measures thermal emissions from oxygen molecules in the atmosphere to prove temperature profiles above, below, and at flight level. It operates between 55 to 59 GHz and provides profiles every 17 seconds with 4 km horizontal spacing. MTP has a vertical resolution of 150 m near the aircraft.
Earth Science > Spectral/engineering > Microwave > Brightness Temperature
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Temperature
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
This data will be added in future versions
Earth Science > >
This data will be added in future versions.
Earth Science > >
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
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens
The Whole Air Sampler (WAS) is an airborne in-situ instrument that collects samples of air for analysis of trace gases, such as nonmethane hydrocarbons (NMHCs), Halocarbons, Alkyl Nitrates, and various sulfur compounds that are present in the troposphere. Air samples collected via the WAS then undergo gas chromatography and mass spectrometry to determine which gasses are present in the sample. The WAS collects samples every minute, which enables scientists to get a clear picture of the chemical composition of the environment as research aircraft pass through.
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Non-methane Hydrocarbons/volatile Organic Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Dimethyl Sulfide
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Halocarbons
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Carbonyl Sulfide
Earth Science > Atmosphere > Aerosols > Nitrate Particles
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds
Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds
The Condensation Nuclei Counter (CNC) is optical method for
counting atmospheric aerosol particles.
Earth Science > >
The NOAA Dual-Beam UV-Absorption Ozone Photometer (NOAA-O3) is an in situ optical balloon-borne and airborne instrument that measures ozone concentrations in the troposphere and lower stratosphere. It operates at the 254 nm wavelength allowing it to calculate the ozone number density due to the accurate ozone absorption cross section at that wavelength. It has a sampling rate of 2 Hz and a horizontal resolution of 100 to 200 meters at typical research flight speeds.
Earth Science > Atmosphere > Air Quality > Tropospheric Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Air Quality
Earth Science > Atmosphere > Atmospheric Chemistry
The Nucleation-mode Aerosol Size Spectrometer (NMASS) is an airborne, in situ spectrometer used to measure particle size distribution and cloud condensation nuclei (CCN). NMASS consists of 5 parallel condensation nucleus counters (CNCs) that are used to sample particles within the 3 to 60 nm diameter range. It can be equipped on multiple types of aircraft and is ideal for sampling cirrus clouds in the upper atmosphere. NMASS provides fast time response measurements at a temporal resolution of 10 Hz.
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Particle Size Distribution
Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Condensation Nuclei
Earth Science > Atmosphere > Clouds > Cloud Microphysics
Earth Science > Atmosphere > Clouds
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
The Focused Cavity Aerosol Spectrometer (FCAS) is an in situ airborne optical particle counter designed by Particle Measuring Systems, Inc. FCAS measures the light scattered by the individual aerosol particles to determine the particle size distribution. It can detect aerosol particles in the size range of 0.06 to 2 μm and can operate at altitudes up to 20 km. Typically, FCAS provides measurements at a sampling rate of 10 seconds.
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
The NOAA Frost Point Hygrometer (FPH) is a balloon-borne sensor that collects profile measurements of atmospheric water vapor. It uses the chilled-mirror principle to measure the frost or dew point temperature up to 28 km in the atmosphere. FPH takes measurements at a vertical resolution of 5-10 m and a temporal resolution of 1-2 seconds.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Water Vapor
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Dew Point Temperature
This description will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species
Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
This description will be added in future versions.
Earth Science > Atmosphere > Atmospheric Chemistry
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Campaign Balloons
65 Campaigns · 22 Instruments
This data will be added in future versions.
Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
Earth Science > Atmosphere > Atmospheric Temperature
NASA WB-57
15 Campaigns · 75 Instruments
This data will be added in future versions
Earth Science > Atmosphere > Atmospheric Pressure
Earth Science > Atmosphere > Atmospheric Temperature
If instrument model information is not available, can use this instrument entry for temperature, pressues, wind speed, wind direction, humidity
Earth Science > >
The NOAA Dual-Beam UV-Absorption Ozone Photometer (NOAA-O3) is an in situ optical balloon-borne and airborne instrument that measures ozone concentrations in the troposphere and lower stratosphere. It operates at the 254 nm wavelength allowing it to calculate the ozone number density due to the accurate ozone absorption cross section at that wavelength. It has a sampling rate of 2 Hz and a horizontal resolution of 100 to 200 meters at typical research flight speeds.
Earth Science > Atmosphere > Air Quality > Tropospheric Ozone
Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone
Earth Science > Atmosphere > Air Quality
Earth Science > Atmosphere > Atmospheric Chemistry
The Particle Analysis by Laser Mass Spectrometry (PALMS) is a laser ionization mass spectrometer owned and operated by NOAA. PALMS provides in situ measurements of aerosol particles and their chemical composition by using a pulse from a UV laser (193 nm) to generate ions. These ions are then analyzed with a time-of-flight mass spectrometer to provide the mass spectrum of each particle which can be used to classify the individual aerosol particles. PALMS has an aerosol size range of 0.2 to 3 microns and has a typical data rate of around 1 to 10 Hz. It can be utilized for either airborne or laboratory measurements of aerosols.
Earth Science > Atmosphere > Aerosols > Chemical Composition
Earth Science > Atmosphere > Aerosols
Events
3 Deployments
3 IOPs
1 Significant Event
NASA, USAF
NASA Atmospheric Effects of Aircraft Program, United States Air Force Rocket Impacts on Stratospheric Ozone Program
Currently unavailable
Randall R. Friedl, Martin N. Ross
Currently unavailable
NOAA, NSF, USAF
Currently unavailable