Article
Version 2
Preserved in Portico This version is not peer-reviewed
Influence of Synoptic-Scale Air Mass Conditions on Seasonal Precipitation Patterns over North Carolina
Version 1
: Received: 15 August 2019 / Approved: 20 August 2019 / Online: 20 August 2019 (03:01:27 CEST)
Version 2 : Received: 8 October 2019 / Approved: 9 October 2019 / Online: 9 October 2019 (04:38:32 CEST)
Version 2 : Received: 8 October 2019 / Approved: 9 October 2019 / Online: 9 October 2019 (04:38:32 CEST)
A peer-reviewed article of this Preprint also exists.
Zarzar, C.; Dyer, J. The Influence of Synoptic-Scale Air Mass Conditions on Seasonal Precipitation Patterns over North Carolina. Atmosphere 2019, 10, 624. Zarzar, C.; Dyer, J. The Influence of Synoptic-Scale Air Mass Conditions on Seasonal Precipitation Patterns over North Carolina. Atmosphere 2019, 10, 624.
Abstract
This paper characterizes the influence of synoptic-scale air mass conditions on spatial and temporal patterns of precipitation in North Carolina over a 16-year period (2003-2018). National Center for Environmental Prediction Stage IV multi-sensor precipitation estimates were used to describe seasonal variations in precipitation in the context of prevailing air mass conditions classified using the spatial synoptic classification system. Spatial analyses identified significant clustering of high daily precipitation amounts distributed along the east side of the Appalachian Mountains and along the coastal plains. Significant and heterogeneous clustering was prevalent in summer months and tended to coincide with land cover boundaries and complex terrain. The summer months were dominated by maritime tropical air mass conditions whereas dry moderate air mass conditions prevailed in the winter, spring, and fall. Between the three geographic regions of North Carolina, highest precipitation amounts were received in western North Carolina during the winter and spring, and in eastern North Carolina in the summer and fall. Central North Carolina received the least amount of precipitation; however, there was substantial variability between regions due to prevailing air mass conditions. There was an observed shift toward warmer and more humid air mass conditions in the winter, spring, and fall months throughout the study period (2003-2018), indicating a shift toward air mass conditions conducive to higher daily average rain rates in North Carolina.
Keywords
precipitation; seasonal; airmass; spatial patterns
Subject
Environmental and Earth Sciences, Atmospheric Science and Meteorology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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