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Instrument

CPFM
Composition and Photodissociative Flux Measurement

The Composition and Photodissociative Flux Measurement (CPFM) is an in situ airborne spectroradiometer used for the measurement of direct and scattered solar irradiance. It is based on a holographic, diffraction grating, and a 1024-element photodiode array detector. It measures the solar flux on a horizontal surface and the limb and apparent brightness below the flight level. CPFM operates in the 300-770 nm wavelength range. CPFM has also been used for ground-based measurements.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Measurement Type

Spectrometer/Radiometer

Measurement/Variables

Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance

Earth Science > Atmosphere > Atmospheric Radiation

Vertical Measurement Regions

Land Surface, Troposphere

Temporal Resolution

Variable

Spatial Resolution

N/A

Measurement Frequency

389.3-999.3 THz

Calibration Details

https://doi.org/10.1029/95GL01391

Online Information

https://airbornescience.nasa.gov/instrument/Composition_and_Photo-Dissociative_Flux_Measurement

Lead Investigator
Thomas McElroy
Technical Contact
Thomas McElroy
Instrument Maker
Currently unavailable
Funding Source
Currently unavailable
Overview Publications
Overview Publication
Repository
- Atmospheric Science Data Center (ASDC)

Instrument Operation

Platform

Campaigns, where the platform was used with this instrument

Image of ER-2 taking off

Image of ER-2 taking off

NASA Earth Resources-2 Aircraft

58 Campaigns · 107 Instruments

Airborne Southern Hemisphere Ozone Experiment

Moffett Field, California, Christchurch, New Zealand, Hawaii, Fiji

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· 0 Data Products

Photochemistry of Ozone Loss in the Arctic Region In Summer

Arctic, Mid-latitudes

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· 9 Data Products

Stratospheric Photochemistry, Aerosols and Dynamics Expedition

Western United States

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· 1 Data Product

Stratospheric Tracers of Atmospheric Transport

Pacific Ocean, Moffett Field, California, Barbers Point Naval Air Station, Hawaii

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· 9 Data Products

SAGE III Ozone Loss and Validation Experiment

Arctic, Kiruna, Sweden

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· 32 Data Products

Field site of rain gauges and soil moistures sensors from the IFloodS campaign

Field site of rain gauges and soil moistures sensors from the IFloodS campaign

Campaign Field Sites

62 Campaigns · 158 Instruments

Atmospheric Chemistry of Combustion Emissions Near the Tropopause

Southern United States

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· 0 Data Products

Stratospheric Tracers of Atmospheric Transport

Pacific Ocean, Moffett Field, California, Barbers Point Naval Air Station, Hawaii

view all deployment dates

· 9 Data Products

Photochemistry of Ozone Loss in the Arctic Region In Summer

Arctic, Mid-latitudes

view all deployment dates

· 9 Data Products

Image of the WB-57 aircraft taking off at JSC

Image of the WB-57 aircraft taking off at JSC

NASA WB-57

15 Campaigns · 76 Instruments

Atmospheric Chemistry of Combustion Emissions Near the Tropopause

Southern United States

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· 0 Data Products

Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns

Platforms

Formats

Stratospheric Photochemistry, Aerosols and Dynamics Expedition (SPADE) Data Set CD-ROM

CampaignsStratospheric Photochemistry, Aerosols and Dynamics Expedition

PlatformsCampaign Balloons, NASA Earth Resources-2 Aircraft

FormatsASCII

STRAT Photolysis Frequencies (J-Values)10.5067/ASDC/SUBORBITAL/STRAT_jValue_AircraftInSitu_ER2_Data_1

CampaignsStratospheric Tracers of Atmospheric Transport

PlatformsNASA Earth Resources-2 Aircraft

Formatser

STRAT Ground Site Data10.5067/ASDC/SUBORBITAL/STRAT_Ground_Data_1

CampaignsStratospheric Tracers of Atmospheric Transport

PlatformsCampaign Field Sites, Campaign Permanent Land Sites

Formatslidar, bos

STRAT ER-2 Meteorological and Navigational Data10.5067/ASDC/SUBORBITAL/STRAT_MetNav_AircraftInSitu_ER2_Data_1

CampaignsStratospheric Tracers of Atmospheric Transport

PlatformsNASA Earth Resources-2 Aircraft

Formatser

SOLVE I ER-2 Aircraft In-situ Photolysis Rate Data10.5067/ASDC/SUBORBITAL/SOLVE1_jValue_AircraftInSitu_ER2_Data_1

CampaignsSAGE III Ozone Loss and Validation Experiment

PlatformsNASA Earth Resources-2 Aircraft

FormatsOther Ames

POLARIS ER-2 Meteorological and Navigational Data10.5067/ASDC/SUBORBITAL/POLARIS_MetNav_AircraftInSItu_ER2_Data_1

CampaignsPhotochemistry of Ozone Loss in the Arctic Region In Summer

PlatformsNASA Earth Resources-2 Aircraft

Formatser

POLARIS Photolysis Frequencies (J-Values)10.5067/ASDC/SUBORBITAL/POLARIS_jValue_AircraftInSitu_ER2_Data_1

CampaignsPhotochemistry of Ozone Loss in the Arctic Region In Summer

PlatformsNASA Earth Resources-2 Aircraft

Formatser

POLARIS Ground Site Data10.5067/ASDC/SUBORBITAL/POLARIS_Ground_Data_1

CampaignsPhotochemistry of Ozone Loss in the Arctic Region In Summer

PlatformsCampaign Field Sites

Formatsbos