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the atmospheric data acquisition and interpolation process for center-tracon automation systemThe Center-TRACON Automation System (CTAS), an advanced new air traffic automation program, requires knowledge of spatial and temporal atmospheric conditions such as the wind speed and direction, the temperature and the pressure in order to accurately predict aircraft trajectories. Real-time atmospheric data is available in a grid format so that CTAS must interpolate between the grid points to estimate the atmospheric parameter values. The atmospheric data grid is generally not in the same coordinate system as that used by CTAS so that coordinate conversions are required. Both the interpolation and coordinate conversion processes can introduce errors into the atmospheric data and reduce interpolation accuracy. More accurate algorithms may be computationally expensive or may require a prohibitively large amount of data storage capacity so that trade-offs must be made between accuracy and the available computational and data storage resources. The atmospheric data acquisition and processing employed by CTAS will be outlined in this report. The effects of atmospheric data processing on CTAS trajectory prediction will also be analyzed, and several examples of the trajectory prediction process will be given.
Document ID
Document Type
Conference Paper
Jardin, M. R.
(NASA Ames Research Center Moffett Field, CA United States)
Erzberger, H.
(NASA Ames Research Center Moffett Field, CA United States)
Denery, Dallas G.
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Aircraft Communications and Navigation
Meeting Information
AIAA 34th Aerospace Sciences Meeting and Exhibit(Reno, NV)
Funding Number(s)
PROJECT: RTOP 504-64-13
Distribution Limits
Work of the US Gov. Public Use Permitted.