4 The Impact of Height Misestimation Caused by Vaisala RS80 Pressure Bias on Ozone and Temperature Profile Data

Tuesday, 10 June 2014
Salon C (Denver Marriott Westminster)
Yoichi Inai, Kyoto University, Uji, Kyoto, Japan; and M. Shiotani, M. Fujiwara, and F. Hasebe

To examine a pressure bias of Vaisala RS80 and its influence on other meteorological variables, simultaneous measurements between RS80 and global positioning system (GPS) altitude are analyzed. Those measurements have been conducted by the Soundings of Ozone and Water in the Equatorial Region project during from December 2004 to January 2010. Estimated pressure bias of RS80 is approximately – 0.4 hPa above 20 km and it has statistically significance. The pressure bias results in – 1.5% and + 3% of net ozone mixing ratio error at around 20 km and 30km, respectively. On the other hand, the same pressure bias leads to – 0.4 K of temperature bias at 30 km.
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