Quality assurance of the UV irradiances of the UV-B Monitoring and Research Program: the Mauna Loa test case

Melina Maria Zempila; John Davis; George Janson; Becky Olson; Maosi Chen; Bill Durham; Scott Simpson; Jonathan Straube; Zhibin Sun; Wei Gao

doi:10.1117/12.2274525

19 September 2017 Quality assurance of the UV irradiances of the UV-B Monitoring and Research Program: the Mauna Loa test case

Melina Maria Zempila, John Davis, George Janson, Becky Olson, Maosi Chen, Bill Durham, Scott Simpson, Jonathan Straube, Zhibin Sun, Wei Gao

Author Affiliations +

Proceedings Volume 10405, Remote Sensing and Modeling of Ecosystems for Sustainability XIV; 104050A (2017) https://doi.org/10.1117/12.2274525
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

The USDA UV-B Monitoring and Research Program (UVMRP) is an ongoing effort aiming to establish a valuable, longstanding database of ground-based ultraviolet (UV) solar radiation measurements over the US. Furthermore, the program aims to achieve a better understanding of UV variations through time, and develop a UV climatology for the Northern American section. By providing high quality radiometric measurements of UV solar radiation, UVMRP is also focusing on advancing science for agricultural, forest, and range systems in order to mitigate climate impacts. Within these foci, the goal of the present study is to investigate, analyze, and validate the accuracy of the measurements of the UV multi-filter rotating shadowband radiometer (UV-MFRSR) and Yankee (YES) UVB-1 sensor at the high altitude, pristine site at Mauna Loa, Hawaii. The response-weighted irradiances at 7 UV channels of the UV-MFRSR along with the erythemal dose rates from the UVB-1 radiometer are discussed, and evaluated for the period 2006-2015. Uncertainties during the calibration procedures are also analyzed, while collocated groundbased measurements from a Brewer spectrophotometer along with model simulations are used as a baseline for the validation of the data. Besides this quantitative research, the limitations and merits of the existing UVMRP methods are considered and further improvements are introduced.

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Melina Maria Zempila, John Davis, George Janson, Becky Olson, Maosi Chen, Bill Durham, Scott Simpson, Jonathan Straube, Zhibin Sun, and Wei Gao "Quality assurance of the UV irradiances of the UV-B Monitoring and Research Program: the Mauna Loa test case", Proc. SPIE 10405, Remote Sensing and Modeling of Ecosystems for Sustainability XIV, 104050A (19 September 2017); https://doi.org/10.1117/12.2274525

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