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DOI	10.1175/JCLI-D-20-0653.1
	Intercomparison of MJO column moist static energy and water vapor budget among six modern reanalysis products
	Ren P.; Kim D.; Ahn M.-S.; Kang D.; Ren H.-L.
发表日期	2021
ISSN	08948755
起始页码	2977
结束页码	3001
卷号	34 期号:8
英文摘要	This study conducts an intercomparison of the column-integrated moist static energy (MSE) and water vapor budget of the Madden-Julian oscillation (MJO) among six modern global reanalysis products (RAs). Inter-RA differences in the mean MSE, MJO MSE anomalies, individual MSE budget terms, and their relative contributions to the propagation and maintenance of MJO MSE anomalies are examined. Also investigated is the relationship between the MJO column water vapor (CWV) budget residuals with the other CWV budget terms as well as with the two parameters that characterize cloud-radiation feedback and moisture-convection coupling. Results show a noticeable inter-RA spread in the mean-state MSE, especially its vertical structure. In all RAs, horizontal MSE advection dominates the propagation of the MJO MSE while column-integrated longwave radiative heating and vertical MSE advection are found to be the key processes for MJO maintenance. The MSE budget terms directly affected by the model parameterization schemes exhibit high uncertainty. The differences in anomalous vertical velocity mainly contribute to the large differences in vertical MSE advection among the RAs. The budget residuals show large inter-RA differences and have nonnegligible contributions to MJO maintenance and propagation in most RAs. RAs that underestimate (overestimate) the strength of cloud-radiation feedback and the convective moisture adjustment time scale tend to have positive (negative) MJO CWV budget residual, indicating the critical role of these processes in the maintenance of MJO CWV anomalies. Our results emphasize that a correct representation of the interactions among moisture, convection, cloud, and radiation is the key for an accurate depiction of the MJO MSE and CWV budget in RAs. © 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Madden-Julian oscillation; Moisture/moisture budget; Reanalysis data
语种	英语
scopus关键词	Advection; Climatology; Heat radiation; Maintenance; Moisture; Time measurement; Water vapor; Intercomparisons; Madden-Julian oscillation; Model parameterization; Moist static energy; Radiative heating; Relative contribution; Vertical structures; Vertical velocity; Budget control; accuracy assessment; advection; cloud radiative forcing; comparative study; convective system; longwave radiation; Madden-Julian oscillation; moisture transfer; timescale; water budget; water column; water vapor
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178665
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Laboratory for Climate Studies, China Meteorological Administration, Beijing, China; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Lawrence Livermore National Laboratory, Livermore, CA, United States; CMA-NJU Joint Laboratory for Climate Prediction Studies, China Meteorological Administration, Beijing, China
推荐引用方式 GB/T 7714	Ren P.,Kim D.,Ahn M.-S.,et al. Intercomparison of MJO column moist static energy and water vapor budget among six modern reanalysis products[J],2021,34(8).
APA	Ren P.,Kim D.,Ahn M.-S.,Kang D.,&Ren H.-L..(2021).Intercomparison of MJO column moist static energy and water vapor budget among six modern reanalysis products.Journal of Climate,34(8).
MLA	Ren P.,et al."Intercomparison of MJO column moist static energy and water vapor budget among six modern reanalysis products".Journal of Climate 34.8(2021).