Radiant energy – Luminophor irradiation – Methods
Patent
1987-01-16
1989-02-14
Howell, Janice A.
Radiant energy
Luminophor irradiation
Methods
2504581, 356221, 356417, G01N 2162
Patent
active
048048496
ABSTRACT:
Apparatus is provided for optically measuring scalar irradiance or incident flux of radiant energy and for optically measuring naturally occurring chlorophyll fluorescence or upwelling radiance in a parcel of water in a natural setting. From a comparison of the two measurements, rate of primary photosynthetic production is calculated by appropriately programmed computer means. Readout means are provided to indicate the rate of primary production. Further, concentrations of chlorophyll that generate the primary production are also determined by means of the apparatus of this invention. The method of this invention, employing measurement instruments of the type disclosed, enables the determination of concentrations of chlorophyll and primary production in parcels of water.
REFERENCES:
patent: 3666945 (1972-05-01), Frungel et al.
patent: 4084905 (1978-04-01), Schreiber et al.
patent: 4178101 (1979-12-01), Booth
patent: 4178512 (1979-12-01), Frungel et al.
patent: 4293225 (1981-10-01), Wheaton et al.
patent: 4650336 (1987-03-01), Moll
Leblanc et al., "Laser Spectrofluorimetry of Chlorophylls", Biophysics Research Project, University of Quebec, pp. 3723-3727, 6/1974.
Booth Charles R.
Kiefer Dale A.
Biospherical Instruments Inc.
Howell Janice A.
Rauchholz William F.
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