C. Brogniez, F. Auriol, and F. Minvielle (LOAL) – Measurements of spectral UV irradiance (290 – 450 nm) with a double monochromator (JY HD10) were initiated in May 1997 and continued through 2008 with some interruptions due to instrument problems.  The instrument took part in the SUSPEN intercomparison campaign (July 1997), and the QASUME instrument validation project (September 2004).  In 2008 the JY HD10 was replaced with a Bentham DTMc300 spectroradiometer for which data are available beginning in 2009.