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Modulation of radiative heating by the Madden-Julian Oscillation and convectively coupled Kelvin waves as observed by CloudSat

Publication ,  Journal Article
Ma, D; Kuang, Z
Published in: Geophysical Research Letters
November 1, 2011

The vertical distribution of radiative heating affects the moist static energy budget and potentially the maintenance and propagation of the Madden-Julian Oscillation (MJO). This paper uses CloudSat data to examine the radiative heating climatology in the tropics and the vertical structure of its modulation by the MJO and convectively coupled Kelvin Waves (KWs). Composites of active regions of the MJO and KW both show positive radiative heating anomaly in the middle and lower troposphere and slightly negative radiative heating anomaly in upper troposphere. Such bottom-heavy profiles can help to strengthen the MJO while weaken the KWs. Another finding is that cloud condensate anomalies associated with the MJO are significantly more bottom-heavy than those of the KWs, while the radiative heating anomalies associated with the MJO are only very slightly more bottom-heavy. © 2011 by the American Geophysical Union.

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Published In

Geophysical Research Letters

DOI

ISSN

0094-8276

Publication Date

November 1, 2011

Volume

38

Issue

21

Related Subject Headings

  • Meteorology & Atmospheric Sciences
 

Citation

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Ma, D., & Kuang, Z. (2011). Modulation of radiative heating by the Madden-Julian Oscillation and convectively coupled Kelvin waves as observed by CloudSat. Geophysical Research Letters, 38(21). https://doi.org/10.1029/2011GL049734
Ma, D., and Z. Kuang. “Modulation of radiative heating by the Madden-Julian Oscillation and convectively coupled Kelvin waves as observed by CloudSat.” Geophysical Research Letters 38, no. 21 (November 1, 2011). https://doi.org/10.1029/2011GL049734.
Ma, D., and Z. Kuang. “Modulation of radiative heating by the Madden-Julian Oscillation and convectively coupled Kelvin waves as observed by CloudSat.” Geophysical Research Letters, vol. 38, no. 21, Nov. 2011. Scopus, doi:10.1029/2011GL049734.
Journal cover image

Published In

Geophysical Research Letters

DOI

ISSN

0094-8276

Publication Date

November 1, 2011

Volume

38

Issue

21

Related Subject Headings

  • Meteorology & Atmospheric Sciences