Articles | Volume 15, issue 3
Atmos. Meas. Tech., 15, 811–818, 2022
https://doi.org/10.5194/amt-15-811-2022
Atmos. Meas. Tech., 15, 811–818, 2022
https://doi.org/10.5194/amt-15-811-2022
Research article
15 Feb 2022
Research article | 15 Feb 2022

Characterizing and correcting the warm bias observed in Aircraft Meteorological Data Relay (AMDAR) temperature observations

Siebren de Haan et al.

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Short summary
AMDAR temperatures suffer from a bias, which can be related to a difference in the timing of height and measurement and to internal corrections applied to pressure altitude. Based on NWP model temperature data, combined with Mach number and true airspeed, we could estimate corrections. Comparing corrected temperatures with (independent) radiosonde observations demonstrates a reduction in the bias, from 0.5 K to around zero, and standard deviation, of almost 10 %.