aosnephdry

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 backwards-hemispheric light scattering coefficient, reference nephelometer blue channel, 10 um particle diameter
Aerosol total light scattering coefficient, reference nephelometer blue channel, 10 um particle diameter

Steamboat Springs CO, USA; Mobile Facility (STORMVEX)

• Latitude: 40.4546
• Longitude: -106.787
• Publication Date: 2010-10-04
• Start Date: 2010-10-04
• End Date: 2011-04-25
• Last Updated: 2011-04-26

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/10.5439/1228051
Atmospheric Radiation Measurement (ARM) user facility. 2010, updated hourly. Nephelometer (AOSNEPHDRY). 2010-10-04 to 2011-04-25, ARM Mobile Facility (SBS) Steamboat Springs CO, Christie Peak (S2). Compiled by A. Koontz and J. Uin. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1258791.