This development was accomplished with support from the U.S. Department of Energy’s Atmospheric Radiation Measurement Program (ARM) and the National Aeronautics and Space Administration Sensor Intercomparison and Merger for Biological Interdisciplinary Ocean Studies (SIMBIOS) program, Contract 52-210.91. The mechanical and electronic engineering were performed by Scott Smith and Ray Edwards of BNL. The officers and crew on the R/V Ronald H. Brown were completely supportive of our effort and went beyond expected duties to accommodate our installations. During the Aerosols99 cruise, we received considerable support and mentoring from scientists Tim Bates, Ken Voss, and Bruce Dodderidge. Chuck Long of Pennsylvania State University conceived the original idea for this modification to the classical shadowband instrument. Lee Harrison of SUNY–Albany provided helpful comments and suggestions. Tom Ackerman and Ted Cress of Pacific Northwest National Laboratory encouraged our work throughout. We also appreciate the efforts of Kendall Carder and Bob Stewart at the University of South Florida for helping us test the original prototype of this instrument aboard the R/V Bellows.
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