Instrument: Biospherical QSR-240 surface PAR

Dataset: 
Instrument Short Name: QSR-240
(http://vocab.nerc.ac.uk/collection/L22/current/TOOL0071/)
Instrument Description:

Shipboard radiometer with a PAR spectral response (400-700nm) designed to monitor surface irradiance during underwater light profile measurement. Hemispherical collector measuring 2-pi scalar irradiance.

PI supplied instrument name: QSR-240 surface PAR sensor
Dataset-specific description

For hydrocasts less than 1000m deep, a Biospherical Instruments QSP-200L4S underwater PAR sensor was attached to the CTD rosette. This sensor was linked to a surface PAR sensor on the ship (QSR-240).