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Genesis of Hurricane Sandy (2012) Simulated with a Global Mesoscale ModelIn this study, we investigate the formation predictability of Hurricane Sandy (2012) with a global mesoscale model. We first present five track and intensity forecasts of Sandy initialized at 00Z 22-26 October 2012, realistically producing its movement with a northwestward turn prior to its landfall. We then show that three experiments initialized at 00Z 16-18 October captured the genesis of Sandy with a lead time of up to 6 days and simulated reasonable evolution of Sandy's track and intensity in the next 2 day period of 18Z 21-23 October. Results suggest that the extended lead time of formation prediction is achieved by realistic simulations of multiscale processes, including (1) the interaction between an easterly wave and a low-level westerly wind belt (WWB) and (2) the appearance of the upper-level trough at 200 hPa to Sandy's northwest. The low-level WWB and upper-level trough are likely associated with a Madden-Julian Oscillation.
Document ID
20140013352
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1002/grl.50934
Authors
Shen, Bo-Wen (Maryland Univ. College Park, MD, United States)
DeMaria, Mark (National Oceanic and Atmospheric Administraion Fort Collins, CO, United States)
Li, J.-L. F. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cheung, S. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
November 5, 2014
Publication Date
September 19, 2013
Publication Information
Publication: Geophysical Research Letters
Volume: 40
Issue: 18
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC-E-DAA-TN11659
Funding Number(s)
CONTRACT_GRANT: NNX12AD03A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
multiscale processes
Hurricane Sandy
global mesoscale model

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