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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/amt-2020-47
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2020-47
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 25 Feb 2020

Submitted as: research article | 25 Feb 2020

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This preprint is currently under review for the journal AMT.

The Development of the Storm Tracker and its Applications for Atmospheric High-resolution Upper-air Observations

Wei-Chun Hwang, Po-Hsiung Lin, and Hungjui Yu Wei-Chun Hwang et al.
  • Department of Atmospheric Sciences, National Taiwan University, No. 1, Sec. 4, Roosevelt Raod, Taipei, Taiwan, 106

Abstract. In this study, we introduce a newly-developed upper-air observational instrument for atmospheric research. The Storm Tracker (or NTU mini-Radiosonde), is an ultra-lightweight (about 20 g including battery), multi-channel simultaneous capable radiosonde designed by the Department of Atmospheric Sciences at National Taiwan University. Developed since 2016, the Storm Tracker aims to provide an alternative for observation of atmospheric vertical profiles with a high temporal resolution, especially lower-level atmosphere under severe weather such as extreme thunderstorms and tropical cyclones.

Two field experiments were conducted as trial runs in December 2017 and July 2018 at Wu-Chi, Taichung, Taiwan, to compare the Strom Tracker with the widely used Vaisala RS41 radiosonde. Among 53 co-launches of the Storm Tracker and Vaisala RS41 radiosondes, the raw measurements of pressure, wind speed, and wind direction are highly consistent between the Strom Tracker and Vaisala RS41. However, a significant daytime warm bias was found due to solar heating. A metal shield specifically for the Storm Tracker was thus installed and shows good mitigation for the warm biases.

With the much lower costs of the sondes and the simultaneous multi-channel receiver, the Storm Tracker system has been proved to be beneficial for high-frequency observational needs in atmospheric research.

Wei-Chun Hwang et al.

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Wei-Chun Hwang et al.

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Latest update: 05 Apr 2020
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Short summary
Since 2016, We designed,made and tested this smaller, lighter (less Helium gas), cheaper (1/10 price of radiosondes in the meteorological market) upper-air radiosonde system in the field. The data sample we collected has showed a good alternative for observation of atmospheric vertical profiles with a high temporal resolution, especially lower-level atmosphere under severe weathers. Eventually, we will prove that these tiny sensors could be loaded by small plastic balloon and spin into cyclones.
Since 2016, We designed,made and tested this smaller, lighter (less Helium gas), cheaper (1/10...
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