The photo-electric measurement of the diurnal variations in daylight in temperate and tropical regions

Abstract
In previous papers we have considered the standardization of photo-electric cells for the measurement of daylight (Poole and Atkins 1935), the daily and seasonal changes (Atkins and Poole 1936 a ) in daylight in England, and the relation of these photo-electric scales to the visual scale of photometry (Atkins and Poole 1936 b ). Though measurements of total radiation had been made in the tropics and though certain spectrophotographic records had been obtained, no measurements of daylight had, as far as we knew, been made by photo-electric methods strictly comparable with those used in Europe and with the newer types of cell. Cells were accordingly standardized against those used at Plymouth, and were taken abroad for use.

This publication has 2 references indexed in Scilit: