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Project

Meteorology - Radiosonde - Part 2: Test method for humidity sensor of radiosonde

Abstract

The purpose of this International Standard is to provide a test method for radiosonde humidity sensors with varying temperature and relative humidity using laboratory setups. The main scope of this International Standard is as follows: (a) technical requirements for laboratory setups needed for the calibration of radiosonde humidity sensors; (b) test procedure for calibrating radiosonde humidity sensors in the range of −70 ℃ – 50 ℃ and 1 % – 100 % (or maximum relative humidity below 0 ℃) (c) uncertainty evaluation method for radiosonde humidity sensors. To be more specific, the requirements for an absolute humidity generator, a test cell, and a precision hygrometer as essential laboratory setups are proposed in part (a). In part (b), the test procedure includes the installation of radiosondes in the test cell, the operation of laboratory setups, and the comparison between the reference relative humidity and the relative humidity measurement by radiosondes. In part (c), the method to evaluate uncertainties related with the reference relative humidity and the radiosonde humidity sensor is proposed.

Begin

2022-05-11

Planned document number

DIN ISO 8932-2

Project number

13402148

Responsible national committee

NA 134-02-01-50 UA - Meteorological measurements  

Responsible international committee

ISO/TC 146/SC 5/WG 11 - Radiosonde  

Contact

Dr. rer. nat.

Julia Nickel-Kuhn

VDI-Platz 1
40468 Düsseldorf

Tel.: +49 211 6214-927

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