Next Article in Journal
Review: The Use of Real-Time Fluorescence Instrumentation to Monitor Ambient Primary Biological Aerosol Particles (PBAP)
Next Article in Special Issue
Decision Science Perspectives on Hurricane Vulnerability: Evidence from the 2010–2012 Atlantic Hurricane Seasons
Previous Article in Journal
Different Characteristics of New Particle Formation Events at Two Suburban Sites in Northern China
Previous Article in Special Issue
Spatial and Temporal Trends in the Location of the Lifetime Maximum Intensity of Tropical Cyclones
Open AccessArticle

The Use of a Spectral Nudging Technique to Determine the Impact of Environmental Factors on the Track of Typhoon Megi (2010)

Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China
Author to whom correspondence should be addressed.
Atmosphere 2017, 8(12), 257;
Received: 3 October 2017 / Revised: 7 December 2017 / Accepted: 7 December 2017 / Published: 20 December 2017
(This article belongs to the Special Issue Tropical Cyclones and Their Impacts)
Sensitivity tests based on a spectral nudging (SN) technique are conducted to analyze the effect of large-scale environmental factors on the movement of typhoon Megi (2010). The error of simulated typhoon track is effectively reduced using SN and the impact of dynamical factors is more significant than that of thermal factors. During the initial integration and deflection period of Megi (2010), the local steering flow of the whole and lower troposphere is corrected by a direct large-scale wind adjustment, which improves track simulation. However, environmental field nudging may weaken the impacts of terrain and typhoon system development in the landfall period, resulting in large simulated track errors. Comparison of the steering flow and inner structure of the typhoon reveals that the large-scale circulation influences the speed and direction of typhoon motion by: (1) adjusting the local steering flow and (2) modifying the environmental vertical wind shear to change the location and symmetry of the inner severe convection. View Full-Text
Keywords: spectral nudging; typhoon track; environmental factors spectral nudging; typhoon track; environmental factors
Show Figures

Figure 1

MDPI and ACS Style

Guo, X.; Zhong, W. The Use of a Spectral Nudging Technique to Determine the Impact of Environmental Factors on the Track of Typhoon Megi (2010). Atmosphere 2017, 8, 257.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop