Attribution of the june-july 2013 heat wave in the southwestern United States

Hideo Shiogama; Masahiro Watanabe; Yukiko Imada; Masato Mori; Youichi Kamae; Masayoshi Ishii; Masahide Kimoto

doi:10.2151/sola.2014-025

Attribution of the june-july 2013 heat wave in the southwestern United States

Hideo Shiogama, Masahiro Watanabe, Yukiko Imada, Masato Mori, Youichi Kamae, Masayoshi Ishii, Masahide Kimoto

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Abstract

A severe heat wave occurred in the southwestern United States (US) during June and July 2013. To investigate the effects of natural variability and anthropogenic climate change on this event, we generated large ensemble simulations of possible weather using the MIROC5A climate model forced by "historical external forcing agents, sea surface temperature (SST) observations and sea ice (SIC) observations" both with and without human influence. It was suggested that both the anthropogenic warming and an atmospheric circulation regime related to the natural variability of SST and SIC made the heat wave event more likely. On the other hand, no significant human influence was found in atmospheric estimates of anthropogenic signals on SST and SIC.

Original language	English
Pages (from-to)	122-126
Number of pages	5
Journal	Scientific Online Letters on the Atmosphere
Volume	10
Issue number	1
DOIs	https://doi.org/10.2151/sola.2014-025
Publication status	Published - 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atmospheric Science

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2151/sola.2014-025

Cite this

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abstract = "A severe heat wave occurred in the southwestern United States (US) during June and July 2013. To investigate the effects of natural variability and anthropogenic climate change on this event, we generated large ensemble simulations of possible weather using the MIROC5A climate model forced by {"}historical external forcing agents, sea surface temperature (SST) observations and sea ice (SIC) observations{"} both with and without human influence. It was suggested that both the anthropogenic warming and an atmospheric circulation regime related to the natural variability of SST and SIC made the heat wave event more likely. On the other hand, no significant human influence was found in atmospheric estimates of anthropogenic signals on SST and SIC.",

author = "Hideo Shiogama and Masahiro Watanabe and Yukiko Imada and Masato Mori and Youichi Kamae and Masayoshi Ishii and Masahide Kimoto",

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T1 - Attribution of the june-july 2013 heat wave in the southwestern United States

AU - Shiogama, Hideo

AU - Watanabe, Masahiro

AU - Imada, Yukiko

AU - Mori, Masato

AU - Kamae, Youichi

AU - Ishii, Masayoshi

AU - Kimoto, Masahide

PY - 2014

Y1 - 2014

N2 - A severe heat wave occurred in the southwestern United States (US) during June and July 2013. To investigate the effects of natural variability and anthropogenic climate change on this event, we generated large ensemble simulations of possible weather using the MIROC5A climate model forced by "historical external forcing agents, sea surface temperature (SST) observations and sea ice (SIC) observations" both with and without human influence. It was suggested that both the anthropogenic warming and an atmospheric circulation regime related to the natural variability of SST and SIC made the heat wave event more likely. On the other hand, no significant human influence was found in atmospheric estimates of anthropogenic signals on SST and SIC.

AB - A severe heat wave occurred in the southwestern United States (US) during June and July 2013. To investigate the effects of natural variability and anthropogenic climate change on this event, we generated large ensemble simulations of possible weather using the MIROC5A climate model forced by "historical external forcing agents, sea surface temperature (SST) observations and sea ice (SIC) observations" both with and without human influence. It was suggested that both the anthropogenic warming and an atmospheric circulation regime related to the natural variability of SST and SIC made the heat wave event more likely. On the other hand, no significant human influence was found in atmospheric estimates of anthropogenic signals on SST and SIC.

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Attribution of the june-july 2013 heat wave in the southwestern United States

Abstract

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