aosnephdry1m

The nephelometer measures the total scattering and hemispheric backscattering of aerosol. Nephelometers are deployed in pairs, with one measuring the ambient conditions and the other measuring the scattering as a function of slowly increasing or decreasing relative humidity (RH). The combination can then be used to derive the hygroscopic growth factor as a function of RH: f(RH).

The nephelometer is part of the aerosol observing system (AOS).

Aerosol back-hemispheric light scattering coefficient, nominal blue wavelength at dry or reference RH
Aerosol total light scattering coefficient, nominal blue wavelength at dry or reference RH

Eastern North Atlantic

• Latitude: 39.0916
• Longitude: -28.0257
• Publication Date: 2013-10-09
• Start Date: 2013-10-09
• End Date: 2020-12-01
• Last Updated: 2020-12-03

https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#nephelometer

Elisabeth Andrews

University of Colorado

Gunnar Senum

Brookhaven National Laboratory

Daniel Cziczo

Massachusetts Institute of Technology

Cynthia Salwen

Brookhaven National Laboratory

Janek Uin

Brookhaven National Laboratory

http://dx.doi.org/10.5439/1259232
Atmospheric Radiation Measurement (ARM) user facility. 2013, updated hourly. Nephelometer (AOSNEPHDRY1M). 2013-10-09 to 2020-12-01, Eastern North Atlantic (ENA) Graciosa Island, Azores, Portugal (C1). Compiled by J. Uin, D. Cziczo, C. Salwen and G. Senum. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1259232.