IN M903: Integrating Nephelometer
Purpose of Participation
- Quantification of scattering coefficient of aerosol particles in the European Arctic
Instrument description
The instrument Integrating Nephelometer measures scattering coefficient using the geometry of a standard integrating nephelometer. The light source is a variable rate flash lamp with a wavelength defining optical filter (530 nm).
| Species | Aerosol |
| Method | Measurement of scattered light by aerosol particles |
| Quantity primary | Scattering coefficient of aerosol |
| Quantity secondary | Single scattering albedo of aerosol |
| Spectral range | 530 nm |
| Altitude range | 0 - 8 km (up to aircraft limit) |
| Vertical resolution | Several 10 m |
| Temporal resolution | 6 seconds |
| Operation | Continuously in any condition |
| Precision | 1*10 -6 at 30 sec average |
| Data availability (during campaign) | Next day |
| Final availability (after campaign) | Three months |
Specific remarks
References
D.E.Day and W.C.Malm, 2001. Aerosol light scattering measurements as a function of relative humidity: a comparison between measurements made at three different sites, Atmos. Environ., 35, 5169-5176.T.L. Anderson, et al. 2003. Variability of aerosol optical properties derived from in situ air craft measurements during ACE-Asia, J. Geophys. Res., 108, 8647-8662.
S. Hasegawa, S. Ohta, N. Murao, S. Yamagata, 2002. Measurements of optical and chemical properties of atmospheric aerosols for estimates of atmospheric turbidity over the East China Sea by satellite data. J. Global. Environ. Eng., 8, 1-15.
Y. Fujitani, S. Ohta, T. Endoh, N. Murao, S.Yamagata, 2002. Measurement of optical and chemical properties of atmospheric aerosols over the Western Pacific Ocean, J. Global. Environ. Eng., 8, 17-33.