csphotalm

The Cimel sunphotometer (CSPHOT) is a multi-channel, automatic sun-and-sky scanning radiometer that measures the direct solar irradiance and sky radiance at the Earth s surface. It takes measurements at predetermined discrete wavelengths in the visible and near-infrared parts of the spectrum to determine atmospheric transmission and scattering properties. The CSPHOT only operates during daylight (sun above horizon).

Radiance, diffuse, almucantar, at azimuth, from CPSHOT

Ascension Island, South Atlantic Ocean; Mobile Facility (LASIC)

• Latitude: -7.96696
• Longitude: -14.34981
• Publication Date: 2016-05-21
• Start Date: 2016-05-21
• End Date: 2017-10-25
• Last Updated: 2017-10-27

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

Lynn Ma

Brookhaven National Laboratory

Laurie Gregory

Brookhaven National Laboratory

Richard Wagener

Brookhaven National Laboratory

http://dx.doi.org/10.5439/1025172
Atmospheric Radiation Measurement (ARM) user facility. 2016, updated hourly. Cimel Sunphotometer (CSPHOTALM). 2016-05-21 to 2017-10-25, ARM Mobile Facility (ASI) Ascension Island, South Atlantic Ocean; AMF1 (M1). Compiled by L. Ma, R. Wagener and L. Gregory. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1025172.