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The Impact of Assimilating Atmospheric Infrared Sounder Observation on the Forecast of Typhoon Tracks
Joint Authors
Chou, Chien-Ben
Huang, Huei-Ping
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This work assesses the effects of assimilating atmospheric infrared sounder (AIRS) observations on typhoon prediction using the three-dimensional variational data assimilation (3DVAR) and forecasting system of the weather research and forecasting (WRF) model.
Two major parameters in the data assimilation scheme, the spatial decorrelation scale and the magnitude of the covariance matrix of the background error, are varied in forecast experiments for the track of typhoon Sinlaku over the Western Pacific.
The results show that within a wide parameter range, the inclusion of the AIRS observation improves the prediction.
Outside this range, notably when the decorrelation scale of the background error is set to a large value, forcing the assimilation of AIRS data leads to degradation of the forecast.
This illustrates how the impact of satellite data on the forecast depends on the adjustable parameters for data assimilation.
The parameter-sweeping framework is potentially useful for improving operational typhoon prediction.
American Psychological Association (APA)
Chou, Chien-Ben& Huang, Huei-Ping. 2012. The Impact of Assimilating Atmospheric Infrared Sounder Observation on the Forecast of Typhoon Tracks. Advances in Meteorology،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-499309
Modern Language Association (MLA)
Chou, Chien-Ben& Huang, Huei-Ping. The Impact of Assimilating Atmospheric Infrared Sounder Observation on the Forecast of Typhoon Tracks. Advances in Meteorology No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-499309
American Medical Association (AMA)
Chou, Chien-Ben& Huang, Huei-Ping. The Impact of Assimilating Atmospheric Infrared Sounder Observation on the Forecast of Typhoon Tracks. Advances in Meteorology. 2012. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-499309
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499309