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Does the recent warming hiatus exist over Northern Asia forwinter wind chill temperature?

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Title
Does the recent warming hiatus exist over Northern Asia forwinter wind chill temperature?
Other Titles
북아시아의 겨울 체감온도의 증가가 최근 중단되고 있는가?
Authors
Ying Ma
Kim, Seong-Joong
Dao-Yi Gong
sheng-Hui Feng
Rui Mao
Subject
Meteorology & Atmospheric Sciences
Keywords
Northern Asia; warming hiatus; wind chill temperature
Issue Date
2017
Citation
Ying Ma, et al. 2017. "Does the recent warming hiatus exist over Northern Asia forwinter wind chill temperature?". INTERNATIONAL JOURNAL OF CLIMATOLOGY, 37: 3138-3144.
Abstract
Wind chill temperature (WCT) describes the joint effect of wind velocity and air temperature on exposed body skin and could support policymakers in designing plans to reduce the risks of notably cold and windy weather. This study examined winter WCT over Northern Asia during 1973?2013 by analysing in situ station data. The winter WCT warming rate over the Tibetan Plateau (TP) slowed during 1999?2013 (?0.04 ?C decade?1) compared with that of during 1973?1998 (0.67 ?C decade?1). The winterWCT warming hiatus has also been observed in the remainder of Northern Asia with trends of 1.11 ?C decade?1 during 1973?1998 but ?1.02 ?C decade?1 during 1999?2013, except for the Far East (FE) of Russia, where the winter WCT has continued to heat up during both the earlier period of 1973?1998 (0.54 ?C decade?1) and the recent period of 1999?2013 (0.75 ?C decade?1). The results indicate that the influence of temperature on winter WCT is greater than that of wind speed over Northern Asia. Atmospheric circulation changes associated with air temperature and wind speed were analysed to identify the causes for the warming hiatus of winterWCT over Northern Asia. The distributions of sea-level pressure and 500-hPa height anomalies during 1999?2013 transported cold air from the high latitudes to middle latitudes, resulting in low air temperature over Northern Asia except for the FE of Russia. Over the TP, the increase in wind speed offset the increase in air temperature during 1999?2013. For the FE, the southerly wind from the Western Pacific drove the temperature up during the 1999?2013 period through warm advection.
URI
http://repository.kopri.re.kr/handle/201206/5647
DOI
http://dx.doi.org/10.1002/joc.4905
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