Derived Products

Apparent Transmission Time Series


The apparent transmission, is derived from broadband (0.2 to 4.0µm) direct solar irradiance observations.

Data are for clear-sky mornings between solar elevations of 11.3 and 30 degrees (Ellis and Pueschel, 1971).


Ellis, H. T. and Pueschel, R. F. 1971. Solar radiation: absence of air pollution trends

at Mauna Loa,Science, 172,845-846.