This work was supported by USDA Special Project NYC-125584. Partial support was also obtained from NOAA Contract EA133E-02-CN-0033. The programming expertise of Laura Joseph facilitated our efforts. A subset of the RUC data was obtained from the Atmospheric Radiation Measurement (ARM) Program sponsored by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Environmental Sciences Division.
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