A new, lower value of total solar irradiance: Evidence and climate significanceKOPP, Greg; LEAN, Judith L.Geophysical research letters. 2011, Vol 38, Num 1, issn 0094-8276, L01706.7-L01706.7Article

Contributions of the solar ultraviolet irradiance to the total solar irradiance during large flaresWOODS, Thomas N; KOPP, Greg; CHAMBERLIN, Phillip C et al.Journal of geophysical research. 2006, Vol 111, Num A10, issn 0148-0227, A10S14.1-A10S14.10Article

A hyperspectral imager for high radiometric accuracy Earth climate studiesESPEJO, Joey; DRAKE, Ginger; HEUERMAN, Karl et al.Proceedings of SPIE, the International Society for Optical Engineering. 2011, Vol 8158, issn 0277-786X, isbn 978-0-8194-8768-1, 81580B.1-81580B.10Conference Paper

Calibration of the absorptance cavities for the spaceflight solar radiometer TIMHEUERMAN, Karl; HARBER, David; EBBETS, Allison et al.Proceedings of SPIE, the International Society for Optical Engineering. 2006, pp 62961H.1-62961H.10, issn 0277-786X, isbn 0-8194-6375-2, 1VolConference Paper

Solar irradiance variability during the October 2003 solar storm periodWOODS, Thomas N; EPARVIER, Francis G; FONTENLA, Juan et al.Geophysical research letters. 2004, Vol 31, Num 10, pp L10802.1-L10802.4, issn 0094-8276Article

The TSI Radiometer Facility -absolute calibrations for total solar irradiance instrumentsKOPP, Greg; HEUERMAN, Karl; HARBER, Dave et al.Proceedings of SPIE, the International Society for Optical Engineering. 2007, pp 667709.1-667709.12, issn 0277-786X, isbn 978-0-8194-6825-3, 1VolConference Paper

Aperture edge scatter calibration of the cavity radiometers for the spaceflight Total Irradiance MonitorHARBER, David M; HEUERMAN, Karl F; KOPP, Greg A et al.Proceedings of SPIE, the International Society for Optical Engineering. 2006, pp 62961I.1-62961I.12, issn 0277-786X, isbn 0-8194-6375-2, 1VolConference Paper