DOI: 10.1007/s00382-017-3700-3
Scopus记录号: 2-s2.0-85016269120
论文题名: Cloud and radiative heating profiles associated with the boreal summer intraseasonal oscillation
作者: Kim J. ; Waliser D.E. ; Cesana G.V. ; Jiang X. ; L’Ecuyer T. ; Neena J.M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-05-06 起始页码: 1485
结束页码: 1494
语种: 英语
英文关键词: Asian monsoon
; BSISO
; Cloud water
; Precipitation
; Predictability
; Radiative heating
Scopus关键词: atmospheric convection
; cloud radiative forcing
; cloud water
; heating
; monsoon
; precipitation (climatology)
; prediction
; summer
; troposphere
英文摘要: The cloud water content (CW) and radiative heating rate (QR) structures related to northward propagating boreal summer intraseasonal oscillations (BSISOs) are analyzed using data from A-train satellites in conjunction with the ERA-Interim reanalysis. It is found that the northward movement of CW- and QR anomalies are closely synchronized with the northward movement of BSISO precipitation maxima. Commensurate with the northward propagating BSISO precipitation maxima, the CW anomalies exhibit positive ice (liquid) CW maxima in the upper (middle/low) troposphere with a prominent tilting structure in which the low-tropospheric (upper-tropospheric) liquid (ice) CW maximum leads (lags) the BSISO precipitation maximum. The BSISO-related shortwave heating (QSW) heats (cools) the upper (low) troposphere; the longwave heating (QLW) cools (heats) the upper (middle/low) troposphere. The resulting net radiative heating (QRN), being dominated by QLW, cools (heats) the atmosphere most prominently above the 200 hPa level (below the 600 hPa level). Enhanced clouds in the upper and middle troposphere appears to play a critical role in increasing low-level QLW and QRN. The vertically-integrated QSW, QLW and QRN are positive in the region of enhanced CW with the maximum QRN near the latitude of the BSISO precipitation maximum. The bottom-heavy radiative heating anomaly resulting from the cloud-radiation interaction may act to strengthen convection. © 2017, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109399
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Joint Institute for Regional Earth System Science and Engineering, University of California Los Angeles, Los Angeles, CA, United States; Jet Propulsion Laboratory, California Institute of Technolpgy, Pasadena, CA, United States; Department of Applied Physics and Mathematics, Columbia University, and NASA Goddard Institute for Space Studies, New York, NY, United States; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, United States; Indian Institute of Science Education and Research, Pune, India
Recommended Citation:
Kim J.,Waliser D.E.,Cesana G.V.,et al. Cloud and radiative heating profiles associated with the boreal summer intraseasonal oscillation[J]. Climate Dynamics,2018-01-01,50(2018-05-06)