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| Titel |
Quality assessment of Automatic Dependent Surveillance Contract (ADS-C) wind and temperature observation from commercial aircraft |
| VerfasserIn |
S. Haan, L. J. Bailey, J. E. Können |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 6, no. 2 ; Nr. 6, no. 2 (2013-02-01), S.199-206 |
| Datensatznummer |
250017381
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| Publikation (Nr.) |
 copernicus.org/amt-6-199-2013.pdf |
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| Zusammenfassung |
| Aircraft observations of wind and temperature are very important for upper
air meteorology. In this article, the quality of the meteorological
information of an Automatic Dependent Surveillance-Contract (ADS-C) message
is assessed. The ADS-C messages broadcast by the aircraft are received at air
traffic control centres for surveillance and airline control centres for
general aircraft and dispatch management. A comparison is performed against a
global numerical prediction (NWP) model and wind and temperature observations
derived from Enhanced Surveillance (EHS) air-traffic control radar which
interrogates all aircraft in selective mode (Mode-S EHS). Almost
16 000 ADS-C reports with meteorological information were compiled from the
Royal Dutch Airlines (KLM) database. The length of the data set is 76
consecutive days and started on 1 January 2011. The wind and temperature
observations are of good quality when compared to the global NWP forecast
fields from the European Centre for Medium-Range Weather Forecasts (ECMWF).
Comparison of ADS-C wind and temperature observations against Mode-S EHS
derived observations in the vicinity of Amsterdam Airport Schiphol shows that
the wind observations are of similar quality and the temperature observations
of ADS-C are of better quality than those from Mode-S EHS. However, the
current ADS-C data set has a lower vertical resolution than Mode-S EHS. High
vertical resolution can be achieved by requesting more ADS-C when aircraft
are ascending or descending, but could result in increased data communication
costs. |
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