A miniature scanning sun photometer for vertical profiles and mobile platforms

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A miniature scanning sun photometer for vertical profiles and mobile platforms.pdf (1.13 MB)

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https://www.tandfonline.com/doi/full/10.1080/02786826.2015.1121200

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https://doi.org/10.1080/02786826.2015.1121200
 http://hdl.handle.net/11603/31646

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Author/Creator ORCID

https://orcid.org/0000-0001-9801-1610

Date

2015-12-18

Type of Work

journal articles
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Citation of Original Publication

D. M. Murphy, H. Telg, T. F. Eck, J. Rodriguez, S. E. Stalin & T. S. Bates (2016) A miniature scanning sun photometer for vertical profiles and mobile platforms, Aerosol Science and Technology, 50:1, 11-16, DOI: 10.1080/02786826.2015.1121200

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0

Subjects

Abstract

A miniature sun photometer has been developed that makes continuous almucantar scans to measure solar irradiance and sky radiance in four wavelength bands set by interference filters. It has a well-defined field of view and can rapidly compensate for a tilting platform. It weighs less than 400 g and has an average power consumption of less than 5 W. Together, these characteristics make it suitable for vertical profiles using small balloons or unmanned aircraft systems (UASs). Preliminary results are presented showing measurements of optical depth and the phase function of scattered sunlight. An optical depth of about 0.03 in a clean boundary layer was measurable with an accuracy of better than 0.01.