| definition |
- USIM, or Underwater Spectral Irradiance Meter, is used in the study of the photosynthetic rate of phyto-plankton and to measure the quantity of radiant light energy available for photosynthesis, specifically direct measurements of the subsurface radiation. This instrument was designed to measure the total amount of
light falling at a fixed point in the sea over a period of time.
References:
Draper, L., 1961, Self-contained integrating irradiance meter for use underwater. Journal of Scientific Instruments. 38, 474-476.
Group: Instrument_Details
Entry_ID: USIM
Group: Instrument_Identification
Instrument_Category: In Situ/Laboratory Instruments
Instrument_Class: Photon/Optical Detectors
Short_Name: USIM
Long_Name: Underwater Spectral Irradiance Meter
End_Group
Online_Resource: http://www.iop.org/EJ/article/0950-7671/38/12/307/siv38i12p474.pdf?request-id=be9c3e08-86e5-4f2f-8751-e2d9cfe3831e
Creation_Date: 2008-07-18
End_Group
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