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Instrument

SP2
Single Particle Soot Photometer

The SP2 is a laser-induced incandescence instrument primarily used for measuring the refractory BC (rBC) mass content of individual accumulation-mode aerosol particles. It is able to provide this data product independently of the total particle morphology and mixing state, and thus delivers detailed information not only about BC loadings, but also size distributions, even in exceptionally clean air. The instrument can also provide the optical size of individual particles containing rBC, and identify the presence of materials associated with the BC fraction (i.e. identify the rBC’s mixing state). Since its introduction in 2003, the SP2 has been substantially improved, and now can be considered a highly competent instrument for assessing BC loadings and mixing state in situ. NOAA deploys multiple SP2s with different designs: the first was built for the WB-57F research aircraft. Two others are rack-mounted units customized at NOAA; one of the rack mounted units can be humidified, and has been deployed with a paired dry rack-mounted SP2 as the "Humidified-Dual SP2" (HD-SP2). The rack mounted units are suitable for in-cabin operations.

Instrument Details

Optical/Photon
AEROSOLS, ATMOSPHERE, AEROSOL PARTICLE PROPERTIES, AEROSOLS, ATMOSPHERE, AEROSOLS, ATMOSPHERE, PARTICULATE MATTER
Troposphere
10 s
This data will be added in future versions
282 THz
External Linkhttps://doi.org/10.1029/2006JD007076
ACCLIP

Asian Summer Monsoon Chemical & Climate Impact Project

2022
West Pacific, South Korea
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1 Deployment
· 0 Data Products
TC4

Tropical Composition, Cloud and Climate Coupling

2007
Costa Rica, tropical Eastern Pacific
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1 Deployment
· 0 Data Products
CR-AVE

Costa Rica Aura Validation Experiment

2006
Costa Rica
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1 Deployment
· 0 Data Products
MACPEX

Mid-latitude Airborne Cirrus Properties Experiment

2011
Central United States, based out of Ellington, Texas
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1 Deployment
· 0 Data Products
ACCLIP

Asian Summer Monsoon Chemical & Climate Impact Project

2022
West Pacific, South Korea
view all deployment dates
1 Deployment
· 0 Data Products
TC4

Tropical Composition, Cloud and Climate Coupling

2007
Costa Rica, tropical Eastern Pacific
view all deployment dates
1 Deployment
· 0 Data Products

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