Cimel Sunphotometer (CSPHOT) - IOP
Instrument Categories: Aerosols, Radiometric
General Overview
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. Measurements are taken at pre-determined discrete wavelengths in the visible and near-IR parts of the spectrum to determine atmospheric transmission and scattering properties. This instrument is weather-proof and requires little maintenance during periods of adverse weather conditions. It takes measurements only during daylight hours (sun above horizon).
For more details, see the External Data Center web page.
IOPs Where the Instrument was Used
Fall 1997 Water Vapor IOP
Southern Great Plains, September 15 - October 5, 1997Remote Cloud Sensing (RCS) Field Evaluation
Southern Great Plains, April-May 1995SUbsonic Aircraft: Contrail & Cloud Effects Special Study (SUCCESS)
Southern Great Plains, April-May 1996Water Vapor IOP
Southern Great Plains, September 10-30, 1996
Primary Measurements Taken
The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes.
- Aerosol absorption
- Precipitable water
- Aerosol extinction
- Shortwave narrowband radiance
- Aerosol optical properties
- Particle number concentration
- Particle size distribution
Mentor(s)
Laurie Gregory
(631) 344-2266
laurie.gregory@bnl.gov
Lynn Ma
associate
(631) 344-3813
malynn@bnl.gov
Richard Wagener
associate
(631) 344-5886
wagener@bnl.gov
Mark Klassen
associate
(580) 388-4053
markk@ops.sgp.arm.gov
