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Title: Response of the Hydrological Cycle in Asian Monsoon Systems to Global Warming Through the Lens of Water Vapor Wave Activity Analysis

Abstract

Here, the column integrated water vapor (CWV)-based local wave activity (LWA) is adapted to examine the response of the hydrological cycle and extreme of the Asian summer monsoon in CMIP5 simulations under the RCP8.5 forcing scenario. A tight linear relationship between CWV LWA (A+) and its sink (P$$ ~\atop{-}$$E+), which measures the intensity of the local hydrological cycle and extremes, affords a simple scaling framework for the hydrological cycle intensity in terms of the contributions from (i) ratio of moisture participating in the hydrological cycle, (ii) stirring length scale, (iii) background moisture gradient, and (iv) hydrological cycling rate (HCR). Future moisture LWA over the broad Asian monsoon region shows a large increase (~35%), attributable largely to the increase of the background moisture. Laslty, the scaling analysis reveals a distinct mix of the contributing factors for the increase in (P$$ ~\atop{-}$$E+) between East Asian and Indian monsoon regions, despite both experiencing sizable increase of (P$$ ~\atop{-}$$E+).

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]
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  1. Nanjing Univ. (China)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1489282
Alternate Identifier(s):
OSTI ID: 1480869
Report Number(s):
PNNL-SA-135250
Journal ID: ISSN 0094-8276
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 45; Journal Issue: 21; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; hydrological cycle; wave activity; Indian monsoon; Asian monsoon; global warming; CMIP

Citation Formats

Xue, Daokai, Lu, Jian, Leung, L. Ruby, and Zhang, Yaocun. Response of the Hydrological Cycle in Asian Monsoon Systems to Global Warming Through the Lens of Water Vapor Wave Activity Analysis. United States: N. p., 2018. Web. doi:10.1029/2018GL078998.
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Xue, Daokai, Lu, Jian, Leung, L. Ruby, & Zhang, Yaocun. Response of the Hydrological Cycle in Asian Monsoon Systems to Global Warming Through the Lens of Water Vapor Wave Activity Analysis. United States. https://doi.org/10.1029/2018GL078998
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Xue, Daokai, Lu, Jian, Leung, L. Ruby, and Zhang, Yaocun. Mon . "Response of the Hydrological Cycle in Asian Monsoon Systems to Global Warming Through the Lens of Water Vapor Wave Activity Analysis". United States. https://doi.org/10.1029/2018GL078998. https://www.osti.gov/servlets/purl/1489282.
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@article{osti_1489282,
title = {Response of the Hydrological Cycle in Asian Monsoon Systems to Global Warming Through the Lens of Water Vapor Wave Activity Analysis},
author = {Xue, Daokai and Lu, Jian and Leung, L. Ruby and Zhang, Yaocun},
abstractNote = {Here, the column integrated water vapor (CWV)-based local wave activity (LWA) is adapted to examine the response of the hydrological cycle and extreme of the Asian summer monsoon in CMIP5 simulations under the RCP8.5 forcing scenario. A tight linear relationship between CWV LWA (A+) and its sink (P$ ~\atop{-}$E+), which measures the intensity of the local hydrological cycle and extremes, affords a simple scaling framework for the hydrological cycle intensity in terms of the contributions from (i) ratio of moisture participating in the hydrological cycle, (ii) stirring length scale, (iii) background moisture gradient, and (iv) hydrological cycling rate (HCR). Future moisture LWA over the broad Asian monsoon region shows a large increase (~35%), attributable largely to the increase of the background moisture. Laslty, the scaling analysis reveals a distinct mix of the contributing factors for the increase in (P$ ~\atop{-}$E+) between East Asian and Indian monsoon regions, despite both experiencing sizable increase of (P$ ~\atop{-}$E+).},
doi = {10.1029/2018GL078998},
journal = {Geophysical Research Letters},
number = 21,
volume = 45,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2018},
month = {Mon Oct 15 00:00:00 EDT 2018}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1029/2018GL078998
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Cited by: 8 works
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Figures / Tables:

Figure 1 Figure 1: Schematic for the concepts of column integrated water vapor (CWV) local wave activity (LWA) and its sink $\widetilde{P - E}$+. The solid wavy line denotes an isoline of CWV ($M$), and the dash line corresponds to the equivalent latitude of $M$. The northward (southward) intrusion of the $M$more » contour is associated with a moist (dry) anomaly, that is, m > $M$ (m < $M$), and the meridional line integral of which gives the local moist wave activity (A+) and dry wave activity (A-), respectively. The white areas carved out by the magenta lines correspond to the parts of LWA not participating the hydrological cycle, representing a concept of CWV holding capacity in the face of the meridional disturbances.« less
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