Investigation of the 2016 Eurasia heat wave as an event of the recent warming
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- Investigation of the 2016 Eurasia heat wave as an event of the recent warming
- Seo, Eunkyo; Lee, Myong-In; Schubert, Siegfried D.; Koster, Randal D.; Kang, Hyun-Suk
- Issue Date
- IOP PUBLISHING LTD
- ENVIRONMENTAL RESEARCH LETTERS, v.15, no.11
- This study investigates the physical mechanisms that contributed to the 2016 Eurasian heat wave during boreal summer season (July-August, JA), characterized by much higher than normal temperatures over eastern Europe, East Asia, and the Kamchatka Peninsula. It is found that the 2016 JA mean surface air temperature, upper-tropospheric height, and soil moisture anomalies are characterized by a tri-pole pattern over the Eurasia continent and a wave train-like structure not dissimilar to recent (1980-2016) trends in those quantities. A series of forecast experiments designed to isolate the impacts of the land, ocean, and sea ice conditions on the development of the heat wave is carried out with the Global Seasonal Forecast System version 5. The results suggest that the tri-pole blocking pattern over Eurasia, which appears to be instrumental in the development of the 2016 summer heat wave, can be viewed as an expression of the recent trends, amplified by record-breaking oceanic warming and internal land-atmosphere interactions.
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