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CORRIGENDUM of the MJO Transition from Shallow to Deep Convection in Cloudsat-Calipso Data and GISS GCM SimulationsWe have identified several errors in the calculations that were performed to create Fig. 3 of Del Genio et al. (2012). These errors affect the composite evolution of precipitation and column water vapor versus lag relative to the Madden-Julian oscillation (MJO) peak presented in that figure. The precipitation and column water vapor data for the April and November 2009 MJO events were composited incorrectly because the date of the MJO peak at a given longitude was assigned to the incorrect longitude band. In addition, the precipitation data for all MJO events were first accumulated daily and the daily accumulations averaged at each lag to create the composite, rather than the averaging of instantaneous values that was used for other composite figures in the paper. One poorly sampled day in the west Pacific therefore biases the composite precipitation in that region at several lags after the MJO peak. Finally, a 4-day running mean was mistakenly applied to the precipitation and column water vapor data rather than the intended 5-day running mean. The results of the corrections are that an anomalous west Pacific precipitation maximum510 days after the MJO peak is removed and the maximum in west Pacific precipitation one pentad before the MJO peak is now more evident; there is now a clear maximum in precipitation for the entire warm pool one pentad before the MJO peak; west Pacific column water vapor now varies more strongly as a function of lag relative to the peak; and precipitation, and to a lesser extent column water vapor, in general vary more smoothly with time. The corrections do not affect any other parts of the paper nor do they change the scientific conclusions we reached. The 4-day running mean error also affects Figs. 1 and 2 therein, with almost imperceptible impacts that do not affect any results or necessitate major changes to the text.
Document ID
20150019912
Document Type
Reprint (Version printed in journal)
Authors
Del Genio, Anthony (NASA Goddard Inst. for Space Studies New York, NY United States)
Chen, Yonghua (Columbia Univ. New York, NY, United States)
Kim, Daehyun (Lamont-Doherty Earth Observatory Palisades, NY, United States)
Yao, Mao-Sung (Sigma Space Partners, LLC New York, NY, United States)
Date Acquired
October 29, 2015
Publication Date
July 1, 2015
Publication Information
Publication: Journal of Climate
Volume: 28
Issue: 13
Subject Category
Meteorology and Climatology
Report/Patent Number
GSFC-E-DAA-TN26875
Funding Number(s)
CONTRACT_GRANT: NNX14AB99A
CONTRACT_GRANT: NNG12HP07C
Distribution Limits
Public
Copyright
Other
Keywords
correction
longitude
errors
water vapor

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