Intensification of the Pre-Meiyu Rainband in the Late 21st Century
Abstract
Increased atmospheric moisture content and changing land-ocean thermal contrasts are usually implicated in the East Asian summer rainfall response to global warming. We highlight an additional influence whereby increased meridional stationary eddy circulation downstream of the Tibetan Plateau drives a stronger moisture flux convergence over southeastern China, intensifying the early summer rainband. This effect occurs robustly across the Community Earth System Model large ensemble Representative Control Pathway 8.5 simulations, and only for its pre-Meiyu stage (mid-May through late June). The westerly jet impinging on the Plateau is also enhanced, suggesting an orographic influence on the westerlies as the root cause. The increased westerlies result from warmer tropical tropospheric temperatures that enhance the meridional temperature gradient at the latitudes of the Plateau. Finally, our results highlight the potential role of the westerlies in altering the East Asian early summer monsoon rainfall in the late 21st century.
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE
- OSTI Identifier:
- 1581351
- Alternate Identifier(s):
- OSTI ID: 1530619
- Grant/Contract Number:
- AC02-05CH11231; SC0014078; AGS-1405479
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geophysical Research Letters
- Additional Journal Information:
- Journal Volume: 46; Journal Issue: 13; Journal ID: ISSN 0094-8276
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES
Citation Formats
Chiang, John C. H., Fischer, Johannes, Kong, Wenwen, and Herman, Michael J. Intensification of the Pre-Meiyu Rainband in the Late 21st Century. United States: N. p., 2019.
Web. doi:10.1029/2019gl083383.
Chiang, John C. H., Fischer, Johannes, Kong, Wenwen, & Herman, Michael J. Intensification of the Pre-Meiyu Rainband in the Late 21st Century. United States. doi:https://doi.org/10.1029/2019gl083383
Chiang, John C. H., Fischer, Johannes, Kong, Wenwen, and Herman, Michael J. Mon .
"Intensification of the Pre-Meiyu Rainband in the Late 21st Century". United States. doi:https://doi.org/10.1029/2019gl083383. https://www.osti.gov/servlets/purl/1581351.
@article{osti_1581351,
title = {Intensification of the Pre-Meiyu Rainband in the Late 21st Century},
author = {Chiang, John C. H. and Fischer, Johannes and Kong, Wenwen and Herman, Michael J.},
abstractNote = {Increased atmospheric moisture content and changing land-ocean thermal contrasts are usually implicated in the East Asian summer rainfall response to global warming. We highlight an additional influence whereby increased meridional stationary eddy circulation downstream of the Tibetan Plateau drives a stronger moisture flux convergence over southeastern China, intensifying the early summer rainband. This effect occurs robustly across the Community Earth System Model large ensemble Representative Control Pathway 8.5 simulations, and only for its pre-Meiyu stage (mid-May through late June). The westerly jet impinging on the Plateau is also enhanced, suggesting an orographic influence on the westerlies as the root cause. The increased westerlies result from warmer tropical tropospheric temperatures that enhance the meridional temperature gradient at the latitudes of the Plateau. Finally, our results highlight the potential role of the westerlies in altering the East Asian early summer monsoon rainfall in the late 21st century.},
doi = {10.1029/2019gl083383},
journal = {Geophysical Research Letters},
number = 13,
volume = 46,
place = {United States},
year = {2019},
month = {7}
}
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Works referenced in this record:
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journal, January 1949
- Charney, J. G.; Eliassen, A.
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Subtropical Anticyclones and Summer Monsoons
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Seasonal Transitions and the Westerly Jet in the Holocene East Asian Summer Monsoon
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Role of seasonal transitions and the westerlies in the interannual variability of the East Asian summer monsoon precipitation: Seasonal Transitions in EASM Variability
journal, April 2017
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The Community Earth System Model (CESM) Large Ensemble Project: A Community Resource for Studying Climate Change in the Presence of Internal Climate Variability
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East Asian hydroclimate modulated by the position of the westerlies during Termination I
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Robust Responses of the Hydrological Cycle to Global Warming
journal, November 2006
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Extratropical Factors Affecting the Variability in Summer Precipitation over the Yangtze River Basin, China
journal, October 2017
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journal, May 1949
- Charney, J. G.; Eliassen, A.
- Tellus, Vol. 1, Issue 2
Near future (2016-40) summer precipitation changes over China as projected by a regional climate model (RCM) under the RCP8.5 emissions scenario: Comparison between RCM downscaling and the driving GCM
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Mechanisms Limiting the Northward Extent of the Northern Summer Monsoons over North America, Asia, and Africa*
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Summertime land–sea thermal contrast and atmospheric circulation over East Asia in a warming climate—Part I: Past changes and future projections
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The representative concentration pathways: an overview
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Effects of Mountain Uplift on East Asian Summer Climate Investigated by a Coupled Atmosphere–Ocean GCM
journal, February 2004
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Role of seasonal transitions and westerly jets in East Asian paleoclimate
journal, January 2015
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Early Summer Response of the East Asian Summer Monsoon to Atmospheric CO 2 Forcing and Subsequent Sea Surface Warming
journal, August 2016
- Chen, Jinqiang; Bordoni, Simona
- Journal of Climate, Vol. 29, Issue 15
Orographic Controls on Climate and Paleoclimate of Asia: Thermal and Mechanical Roles for the Tibetan Plateau
journal, April 2010
- Molnar, Peter; Boos, William R.; Battisti, David S.
- Annual Review of Earth and Planetary Sciences, Vol. 38, Issue 1
Works referencing / citing this record:
Mechanisms Limiting the Northward Extent of the Northern Summer Monsoons over North America, Asia, and Africa*
journal, February 2003
- Chou, Chia; Neelin, J. David
- Journal of Climate, Vol. 16, Issue 3
The representative concentration pathways: an overview
journal, August 2011
- van Vuuren, Detlef P.; Edmonds, Jae; Kainuma, Mikiko
- Climatic Change, Vol. 109, Issue 1-2
Orographic Effects of the Tibetan Plateau on the East Asian Summer Monsoon: An Energetic Perspective
journal, April 2014
- Chen, Jinqiang; Bordoni, Simona
- Journal of Climate, Vol. 27, Issue 8
Jet–Precipitation Relation and Future Change of the Mei-Yu–Baiu Rainband and Subtropical Jet in CMIP5 Coupled GCM Simulations
journal, April 2019
- Horinouchi, Takeshi; Matsumura, Shinji; Ose, Tomoaki
- Journal of Climate, Vol. 32, Issue 8
Role of seasonal transitions and the westerlies in the interannual variability of the East Asian summer monsoon precipitation: Seasonal Transitions in EASM Variability
journal, April 2017
- Chiang, J. C. H.; Swenson, L. M.; Kong, W.
- Geophysical Research Letters, Vol. 44, Issue 8
Near future (2016-40) summer precipitation changes over China as projected by a regional climate model (RCM) under the RCP8.5 emissions scenario: Comparison between RCM downscaling and the driving GCM
journal, April 2013
- Zou, Liwei; Zhou, Tianjun
- Advances in Atmospheric Sciences, Vol. 30, Issue 3
Role of seasonal transitions and westerly jets in East Asian paleoclimate
journal, January 2015
- Chiang, John C. H.; Fung, Inez Y.; Wu, Chi-Hua
- Quaternary Science Reviews, Vol. 108
The Community Earth System Model (CESM) Large Ensemble Project: A Community Resource for Studying Climate Change in the Presence of Internal Climate Variability
journal, August 2015
- Kay, J. E.; Deser, C.; Phillips, A.
- Bulletin of the American Meteorological Society, Vol. 96, Issue 8
Early Summer Response of the East Asian Summer Monsoon to Atmospheric CO 2 Forcing and Subsequent Sea Surface Warming
journal, August 2016
- Chen, Jinqiang; Bordoni, Simona
- Journal of Climate, Vol. 29, Issue 15
Subtropical Anticyclones and Summer Monsoons
journal, August 2001
- Rodwell, M. J.; Hoskins, B. J.
- Journal of Climate, Vol. 14, Issue 15
The Community Earth System Model: A Framework for Collaborative Research
journal, September 2013
- Hurrell, James W.; Holland, M. M.; Gent, P. R.
- Bulletin of the American Meteorological Society, Vol. 94, Issue 9
The East Asian summer monsoon: an overview
journal, June 2005
- Yihui, Ding; Chan, Johnny C. L.
- Meteorology and Atmospheric Physics, Vol. 89, Issue 1-4
Orographic Controls on Climate and Paleoclimate of Asia: Thermal and Mechanical Roles for the Tibetan Plateau
journal, April 2010
- Molnar, Peter; Boos, William R.; Battisti, David S.
- Annual Review of Earth and Planetary Sciences, Vol. 38, Issue 1
East Asian hydroclimate modulated by the position of the westerlies during Termination I
journal, November 2018
- Zhang, Hongbin; Griffiths, Michael L.; Chiang, John C. H.
- Science, Vol. 362, Issue 6414
Summertime land–sea thermal contrast and atmospheric circulation over East Asia in a warming climate—Part I: Past changes and future projections
journal, February 2014
- Kamae, Youichi; Watanabe, Masahiro; Kimoto, Masahide
- Climate Dynamics, Vol. 43, Issue 9-10
Seasonal Transitions and the Westerly Jet in the Holocene East Asian Summer Monsoon
journal, May 2017
- Kong, Wenwen; Swenson, Leif M.; Chiang, John C. H.
- Journal of Climate, Vol. 30, Issue 9
Monsoons in a changing world: A regional perspective in a global context: GLOBAL MONSOONS IN CMIP5 MODELS
journal, April 2013
- Kitoh, Akio; Endo, Hirokazu; Krishna Kumar, K.
- Journal of Geophysical Research: Atmospheres, Vol. 118, Issue 8
Effects of Mountain Uplift on East Asian Summer Climate Investigated by a Coupled Atmosphere–Ocean GCM
journal, February 2004
- Kitoh, Akio
- Journal of Climate, Vol. 17, Issue 4
Extratropical Factors Affecting the Variability in Summer Precipitation over the Yangtze River Basin, China
journal, October 2017
- Li, Xinyu; Lu, Riyu
- Journal of Climate, Vol. 30, Issue 20
Robust Responses of the Hydrological Cycle to Global Warming
journal, November 2006
- Held, Isaac M.; Soden, Brian J.
- Journal of Climate, Vol. 19, Issue 21
A Numerical Method for Predicting the Perturbations of the Middle Latitude Westerlies
journal, May 1949
- Charney, J. G.; Eliassen, A.
- Tellus, Vol. 1, Issue 2
A 44-Year Daily Gridded Precipitation Dataset for Asia Based on a Dense Network of Rain Gauges
journal, January 2009
- Yatagai, Akiyo; Arakawa, Osamu; Kamiguchi, Kenji
- SOLA, Vol. 5
Tug of war on summertime circulation between radiative forcing and sea surface warming
journal, June 2015
- Shaw, T. A.; Voigt, A.
- Nature Geoscience, Vol. 8, Issue 7
The Mechanical Impact of the Tibetan Plateau on the Seasonal Evolution of the South Asian Monsoon
journal, April 2012
- Park, Hyo-Seok; Chiang, John C. H.; Bordoni, Simona
- Journal of Climate, Vol. 25, Issue 7