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Where have Spring and Fall Gone? Changes in Temperate Transition Season Days
Topics: Climatology and Meteorology
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Keywords: thermal comfort, transition seasons, apparent temperature Session Type: Virtual Poster Day: Friday Session Start / End Time: 4/9/2021 11:10 AM (Pacific Time (US & Canada)) - 4/9/2021 12:25 PM (Pacific Time (US & Canada)) Room: Virtual 51
Authors:
Claire Iott, Southern Illinois University Edwardsville
Alan Black, Southern Illinois University Edwardsville
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Abstract
Anecdotal evidence suggests that temperate transition season days are less numerous in recent years, with abrupt shifts directly from winter to summer or summer to winter becoming more common. In this work we examine this change for St. Louis using two temperature-derived metrics. Evidence suggests that temperate transition season days are changing in two ways. First, the number of temperate transition season days are decreasing; secondly, these days are becoming more common in spring and decreasing modestly in fall. Diurnal shifts in apparent temperature show that the overnight period is warming more rapidly than the daytime, which may partially explain the seasonal shifts. Future work will expand this work to additional locations and using other thermal comfort indices.
Where have Spring and Fall Gone? Changes in Temperate Transition Season Days
