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			<titleStmt><title level='a'>Northeast US Regional NEXRAD radar mosaics of winter storms from      1996-2023, part 2</title></titleStmt>
			<publicationStmt>
				<publisher>Dryad</publisher>
				<date>01/01/2023</date>
			</publicationStmt>
			<sourceDesc>
				<bibl> 
					<idno type="par_id">10473824</idno>
					<idno type="doi">10.5061/dryad.rbnzs7hj9</idno>
					
					<author>Laura Tomkins</author><author>Sandra Yuter</author><author>Matthew Miller</author><author>Nicole Corbin</author><author>Nicole Hoban</author>
				</bibl>
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			<abstract><ab><![CDATA[This dataset contains over 14,000 hours of regional radar mosaics over the      northeast US from 600&#43; winter storm days between 1996-2023. Winter storm      days are defined when at least 2 out of 15 surface stations in the      northeast US (see attached map) produced at least 1 inch of snow over the      24 hour period. Sequences of these mosaics aid in analyzing the      precipitation area and the structures within winter storms. Radar      reflectivity data is combined from the first, lowest (0.5 degree)      elevation angle from 12 NEXRAD WSR-88D radars in the northeast US (see      attached). The scans occur every 5-10 minutes from each radar depending on      the radar scan settings. The time label of the regional map is based on      the scan time central radar, KOKX (Upton, NY). Scans from other radars in      the region are used for that time as long as they are within 8 minutes of      the KOKX scan. The polar radar data from each radar is interpolated to a      regional 1202 km x 1202 km Cartesian grid with 2 km grid spacing covering      35.73-46.8 degN and 66.36-81.85 degW. Where the radar domains overlap, we      take the highest reflectivity value. For dates after dual-polarization      integration (2012 onwards), files contain the correlation coefficient      (RHO_HV) field and a binary field that can be used to “image mute” the      reflectivity which reduces the visual prominence of melting and mixed      precipitation commonly mistaken for heavy snow. Image muting is applied      where radar reflectivity is ≥ 20 dBZ and RHO_HV is ≤ 0.97. This product is      different from other widely used radar mosaics such as the MRMS produced      by NOAA since it does not interpolate to a constant altitude and thus      preserves the finer scale details in the reflectivity field. Because the      data used to create these mosaics are not interpolated to a constant      altitude, the altitude varies over the region (altitudes of radar scan      used at each grid point are provided as a field for each data file). This      data set is specifically designed to analyze fine-scale structures in      winter storms. Part 1 contains files pre-dual polarization integration      (1996-2012)Part 2 contains files post-dual polarization integration      (2012-2023)]]></ab></abstract>
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