Premium
A Method for Comparing Scalar Irradiance Measurements With Upward and Downward Irradiance in Lakes
Author(s) -
Spigel Robert H.,
HowardWilliams Clive
Publication year - 1984
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr020i004p00507
Subject(s) - irradiance , radiance , environmental science , solar irradiance , metre , remote sensing , scalar (mathematics) , meteorology , atmospheric sciences , optics , mathematics , geology , physics , geometry , astronomy
A method is outlined for comparing measurements of scalar irradiance, as measured with a 4π scalar irradiance meter, with downward and upward irradiance, as measured with a cosine‐corrected flat plate irradiance meter. The method is based upon an empirical formulation of the aśymptotic radiance distribution given by Jerlov (1976). Results are compared with measurements in several New Zealand lakes with generally good agreement.