ATMOSPHERIC TRANSMISSION OF DIRECT SOLAR RADIATION AT MAUNA LOA, HAWAII
![[MLO Apparent Transmission Graph]](graphics/MLOtrans02.gif)
The "apparent" transmission, or transmission ratio (Ellis
& Pueschel, Science, 1971), is derived from broadband
(0.3 to 2.8um) direct solar irradiance observations at the Mauna Loa
Observatory (19.533 deg. N, 155.578 deg. W, elev. 3.4 km) in Hawaii.
Data are for clear-sky mornings between solar elevations of 11.3 and
30 degrees. The plotted points are monthly averages and the plotted
curves result from a 6 month lowess statistical smoother.
Ellis, H. T. and Pueschel, R. F. 1971. Solar radiation: absence of
air pollution trends at Mauna Loa, Science, 172, 845-846.
Dutton, E. G., J. J. DeLuisi, and A. P. Austring, 1985. Interpretation
of Mauna Loa Atmospheric Transmission Relative to Aerosols, Using
Photometric Precipitable Water Amounts. J. Atmos. Chem., 3,
53-68.
Dutton, E.G., 1992. A Coherence Between the QBO and the Amplitude
of the Mauna Loa Atmospheric Transmission Annual Cycle. International
J. Climatology 12, 383-396.
Dutton, E.G., P. Reddy, S. Ryan, and J.J. DeLuisi, 1994. Features
and effects of aerosol optical depth observed at Mauna Loa, Hawaii:
1982-1992. J. Geophys. Res. 99, 8295- 8306.
Dutton, E.G. and B.A. Bodhaine, 2001: Solar irradiance anomalies
caused by clear-sky transmission variations above Mauna Loa
1957-1999. J. Clim., 14, 3255-3262.
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The "apparent" transmission, or transmission ratio (Ellis
& Pueschel, Science, 1971), is derived from broadband
(0.3 to 2.8um) direct solar irradiance observations at the Mauna Loa
Observatory (19.533 deg. N, 155.578 deg. W, elev. 3.4 km) in Hawaii.
Data are for clear-sky mornings between solar elevations of 11.3 and
30 degrees. The plotted points are monthly averages and the plotted
curves result from a 6 month lowess statistical smoother.
Ellis, H. T. and Pueschel, R. F. 1971. Solar radiation: absence of
air pollution trends at Mauna Loa, Science, 172, 845-846.
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