Automatic Atmospheric Sun Photometer Data for Brazil

Direct sun and sky radiances are acquired every hour by a weather resistant Cimel spectral radiometer in the wavelengths of 340, 440, 670,870, 940, and 1020 nm and transmitted automatically through the NOAA data collection system geostationary link for near real-time processing into spectral aerosol optical thickness, wavelength exponent and precipitable water.

Evaluation of the atmospheric effects of biomass burning emissions from June-November are among the primary targets of the measurements. ftp://ftp.pmel.noaa.gov