Solid-state light source stabilized with optical, electronic and thermal feedback. Especially suitable for HydroRads, but adaptable to other radiometric sensors.
*Johnson, B.C., Shaw, P.-S., Hooker, S.B., and Lynch, D., "Radiometric and engineering performance of the SeaWiFS quality monitor (SQM): A Portable light source for field radiometers," J. Atmos. Oceanic Tech. 15, 1008-1022 (1998).