The spectral composition of the Sun’s output is not constant but varies over multiple timescales, from days to decadal cycles. Solar spectral irradiance variability (SSI) refers to the changes in the ...

The instrument, the Total and Spectral Solar Irradiance Sensor (TSIS-1), is said to be capable of precisely measuring what researchers call “total solar irradiance”. According to NASA, which has spent ...

The intermittent nature of solar energy poses challenges to grid stability, making accurate ultra-short-term solar irradiance ...

Estuaries and Coasts, Vol. 33, No. 5 (September 2010), pp. 1186-1201 (16 pages) We investigated spatial and temporal relationships between spectral irradiance and phytoplankton community composition ...

A number of instruments are heavily dependent on the performance of the detector at their core, including pyranometers ...

NASA has awarded a sole source contract to the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado Boulder for the Total and Spectral Solar Irradiance Sensor-2 (TSIS-2).

The ASTM G173 Standard Spectral Distribution of Sunlight represents a standard, reference solar spectrum that is used for solar photovoltaics testing and calibration purposes. It was defined in the ...

The BSR112 is a miniature Spectral Irradiance Meter for field, industrial, and lab applications. The BSR112 is a miniature Spectral Irradiance Meter designed for field, industrial, and lab ...

Quartz Tungsten Halogen (QTH) lamps are proven visible and near infrared sources, thanks to their smooth spectral curve and stable output. They generate little ultraviolet radiation and do not exhibit ...

NASA has awarded a contract to the University of Colorado at Boulder’s Laboratory for Atmospheric and Space Physics for the development of the Total and Spectral Solar Irradiance Sensor, or TSIS, a ...