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  Regional amplification of projected changes in extreme temperatures strongly controlled by soil moisture-temperature feedbacks

Vogel, M. M., Orth, R., Cheruy, F., Hagemann, S., Lorenz, R., van den Hurk, B. J. J. M., et al. (2017). Regional amplification of projected changes in extreme temperatures strongly controlled by soil moisture-temperature feedbacks. Geophysical Research Letters, 44(3), 1511-1519. doi:10.1002/2016GL071235.

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http://dx.doi.org/10.1002/2016GL071235 (Publisher version)
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 Creators:
Vogel, M. M., Author
Orth, René1, Author           
Cheruy, F., Author
Hagemann, Stefan, Author
Lorenz, R., Author
van den Hurk, B. J. J. M., Author
Seneviratne, S. I., Author
Affiliations:
1External Organizations, ou_persistent22              

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Free keywords: land-climate feedbacks, temperature extremes, soil moisture, GLACE-CMIP5
 Abstract: Regional hot extremes are projected to increase more strongly than global mean temperature, with substantially larger changes than 2°C even if global warming is limited to this level. We investigate the role of soil moisture-temperature feedbacks for this response based on multimodel experiments for the 21st century with either interactive or fixed (late 20th century mean seasonal cycle) soil moisture. We analyze changes in the hottest days in each year in both sets of experiments, relate them to the global mean temperature increase, and investigate processes leading to these changes. We find that soil moisture-temperature feedbacks significantly contribute to the amplified warming of the hottest days compared to that of global mean temperature. This contribution reaches more than 70 in Central Europe and Central North America. Soil moisture trends are more important for this response than short-term soil moisture variability. These results are relevant for reducing uncertainties in regional temperature projections.

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Language(s): eng - English
 Dates: 2017-01-112017-02-102017-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/2016GL071235
Other: BEX622
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Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 44 (3) Sequence Number: - Start / End Page: 1511 - 1519 Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217