noaaaos

The aerosol observing system (AOS) is the primary platform for in situ aerosol measurements at Earth s surface. Each AOS has a different complement of instruments, which are selected to ensure the best measurements at each deployment site.

The AOS measures aerosol optical properties to better understand how particles interact with solar radiation and influence the Earth’s radiation balance. These measurements are useful for calculating parameters used in radiative forcing calculations, such as the aerosol single scattering albedo, asymmetry parameter, mass scattering efficiency, and hygroscopic growth. Measurements made with the AOS form a long-term record at the ARM fixed sites. Shorter measurement records are available from mobile deployments in a wide variety of geographical regions. These measurements are valuable for:

• identifying long-term changes in aerosol properties
• identifying atmospheric processes controlling aerosol life cycle and their influence on clouds
• providing experimental data for developing and testing atmospheric climate models.

Aerosol total light scattering coefficient, reference nephelometer red channel, 10 um particle diameter
Aerosol backwards-hemispheric light scattering coefficient, ref. humidograph nephelometer blue channel, 1 um particle diameter
Cloud droplet concentration number from summation of condensation nuclei counter size bins
Absorption coefficient blue, corrected for flow and sample area, 3 wavelength PSAP, 1 um size cut

North Slope Alaska - External Data (satellites and others)

• Latitude: 38.956158
• Longitude: -106.987856
• Publication Date: 1998-01-01
• Start Date: 1998-01-01
• End Date: 2016-06-29
• Last Updated: 2016-11-07

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

Elisabeth Andrews

University of Colorado

Olga Mayol-Bracero

Brookhaven National Laboratory

Scott Smith

Brookhaven National Laboratory

Jenni Kyrouac

Argonne National Laboratory

Arthur Sedlacek

Brookhaven National Laboratory

Chongai Kuang

Brookhaven National Laboratory

Cynthia Salwen

Brookhaven National Laboratory

Janek Uin

Brookhaven National Laboratory

Maria Anna Zawadowicz

Brookhaven National Laboratory

Rebecca Trojanowski

Brookhaven National Laboratory

Ashish Singh

Brookhaven National Laboratory

http://dx.doi.org/10.5439/1025259
Atmospheric Radiation Measurement (ARM) user facility. 1998. Aerosol Observing System (NOAAAOS). 1998-01-01 to 2016-06-29, North Slope Alaska (NSA) External Data (satellites and others) (X1). Compiled by E. Andrews, O. Mayol-Bracero, S. Springston and S. Smith. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025259.