Articles | Volume 15, issue 5
https://doi.org/10.5194/amt-15-1107-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-1107-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Mar 2022
Research article |
| 04 Mar 2022
| 04 Mar 2022
Radiation correction and uncertainty evaluation of RS41 temperature sensors by using an upper-air simulator
Sang-Wook Lee
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Department of Science of Measurement, University of Science and
Technology, Daejeon 34113, Republic of Korea
Sunghun Kim
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Young-Suk Lee
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Byung Il Choi
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Woong Kang
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Youn Kyun Oh
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Seongchong Park
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Jae-Keun Yoo
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Joohyun Lee
Frontier of Extreme Physics, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Sungjun Lee
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Suyong Kwon
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
Department of Science of Measurement, University of Science and
Technology, Daejeon 34113, Republic of Korea
Yong-Gyoo Kim
CORRESPONDING AUTHOR
Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
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Dual thermistor radiosonde (DTR) comprising two (white and black) sensors with different emissivities was developed to correct the effects of solar radiation on temperature sensors based on in situ radiation measurements. All components contributing to the uncertainty of the radiation measurement and correction are analysed. The DTR methodology improves the accuracy of temperature measurement in the upper air within the framework of the traceability to the International System of Units.
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Accurate measurements of temperature and water vapor in the upper-air are of great interest in relation to weather prediction and climate change. Those measurements are mostly conducted using radiosondes. The sensitivity characteristic and response time of radiosonde humidity sensors were investigated at low temperature, using developed ultralow-temperature humidity chamber. This work will improve the accuracy and reliability of the upper-air observation data.
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Dual thermistor radiosonde (DTR) comprising two (white and black) sensors with different emissivities was developed to correct the effects of solar radiation on temperature sensors based on in situ radiation measurements. All components contributing to the uncertainty of the radiation measurement and correction are analysed. The DTR methodology improves the accuracy of temperature measurement in the upper air within the framework of the traceability to the International System of Units.
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Accurate measurements of temperature and water vapor in the upper-air are of great interest in relation to weather prediction and climate change. Those measurements are mostly conducted using radiosondes. The sensitivity characteristic and response time of radiosonde humidity sensors were investigated at low temperature, using developed ultralow-temperature humidity chamber. This work will improve the accuracy and reliability of the upper-air observation data.
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Cited articles
Choi, H. M., Park, K.-A., Oh, Y. K., and Choi, Y. M.: Uncertainty evaluation procedure and intercomparison of bell provers as a calibration system for gas flow meters, Flow Meas. Instrum., 21,
488–496, https://doi.org/10.1016/j.flowmeasinst.2010.07.002, 2010.
de Podesta, M., Bell, S., and Underwood, R.: Air temperature sensors:
dependence of radiative errors on sensor diameter in precision metrology and
meteorology, Metrologia, 55, 229, https://doi.org/10.1088/1681-7575/aaaa52, 2018.
Dirksen, R. J., Sommer, M., Immler, F. J., Hurst, D. F., Kivi, R., and Vömel, H.: Reference quality upper-air measurements: GRUAN data processing for the Vaisala RS92 radiosonde, Atmos. Meas. Tech., 7, 4463–4490, https://doi.org/10.5194/amt-7-4463-2014, 2014.
GCOS: GCOS Reference Upper-Air Network (GRUAN): Justification, requirements,
siting and instrumentation options, GCOS, https://library.wmo.int/doc_num.php?explnum_id=3821 (last access: 5 August 2021), 2007.
Incropera, F. and DeWitt, D.: Introduction to heat transfer, 4th edition,
John Wiley & Sons, Inc., ISBN 10 0471386499, ISBN 13 978-0471386490, 2002.
ISO: Measurement of Gas Flow by Means of Critical Flow Venturi Nozzles, ISO,
https://www.iso.org/obp/ui/#iso:std:iso:9300:ed-2:v1:en (last access: 2 March 2022), 2005.
ISO: Uncertainty of measurement – Part 3: Guide to the expression of
uncertainty in measurement (GUM: 1995), ISO, https://www.iso.org/standard/50461.html (last access: 2 March 2022), 2008.
Lee, S. W., Choi, B. I., Kim, J. C., Woo, S. B., Park, S., Yang, S. G., and
Kim, Y. G.: Importance of air pressure in the compensation for the solar
radiation effect on temperature sensors of radiosondes, Meteorol.
Appl., 23, 691–697, https://doi.org/10.1002/met.1592, 2016.
Lee, S. W., Park, E. U., Choi, B. I., Kim, J. C., Woo, S. B., Park, S.,
Yang, S. G., and Kim, Y. G.: Correction of solar irradiation effects on air
temperature measurement using a dual-thermistor radiosonde at low
temperature and low pressure, Meteorol. Appl., 25, 283–291,
https://doi.org/10.1002/met.1690, 2018a.
Lee, S. W., Park, E. U., Choi, B. I., Kim, J. C., Woo, S. B., Park, S.,
Yang, S. G., and Kim, Y. G.: Dual temperature sensors with different
emissivities in radiosondes for the compensation of solar irradiation
effects with varying air pressure, Meteorol. Appl., 25, 49–55,
https://doi.org/10.1002/met.1668, 2018b.
Lee, S. W., Park, E. U., Choi, B. I., Kim, J. C., Woo, S. B., Kang, W.,
Park, S., Yang, S. G., and Kim, Y. G.: Compensation of solar radiation and
ventilation effects on the temperature measurement of radiosondes using dual
thermistors, Meteorol. Appl., 25, 209–216, https://doi.org/10.1002/met.1683, 2018c.
Lee, S. W., Yang, I., Choi, B. I., Kim, S., Woo, S. B., Kang, W., Oh, Y. K.,
Park, S., Yoo, J. K., and Kim, J. C.: Development of upper air simulator for
the calibration of solar radiation effects on radiosonde temperature
sensors, Meteorol. Appl., 27, e1855, https://doi.org/10.1002/met.1855, 2020.
Lee, S. W., Kim, S., Choi, B. I., Woo, S. B., Lee, S., Kwon, S., and Kim, Y.
G.: Calibration of RS41 humidity sensors by using an upper-air simulator,
Meteorol. Appl., 28, e2010, https://doi.org/10.1002/met.2010, 2021.
Linstrom, P. J. and Mallard, W. G.: The NIST Chemistry WebBook: A chemical
data resource on the internet, J. Chem. Eng. Data, 46, 1059–1063, https://doi.org/10.1021/je000236i, 2001.
Luers, J. K.: Estimating the temperature error of the radiosonde rod
thermistor under different environments, J. Atmos. Ocean. Tech., 7, 882–895, https://doi.org/10.1175/1520-0426(1990)007<0882:ETTEOT>2.0.CO;2, 1990.
Luers, J. K. and Eskridge, R. E.: Temperature corrections for the VIZ and
Vaisala radiosondes, J. Appl. Meteorol. Clim., 34, 1241–1253, https://doi.org/10.1175/1520-0450(1995)034<1241:TCFTVA>2.0.CO;2, 1995.
McMillin, L., Uddstrom, M., and Coletti, A.: A procedure for correcting
radiosonde reports for radiation errors, J. Atmos. Ocean. Tech., 9, 801–811, https://doi.org/10.1175/1520-0426(1992)009<0801:APFCRR>2.0.CO;2, 1992.
Nash, J., Oakley, T., Vömel, H., and Li, W.: WMO intercomparisons of
high quality radiosonde systems, WMO/TD-1580, WMO – World Meteorological Organization, https://library.wmo.int/doc_num.php?explnum_id=9467 (last access: 2 March 2022), 2011.
Philipona, R., Kräuchi, A., Romanens, G., Levrat, G., Ruppert, P.,
Brocard, E., Jeannet, P., Ruffieux, D., and Calpini, B.: Solar and thermal
radiation errors on upper-air radiosonde temperature measurements, J. Atmos. Ocean. Tech., 30, 2382–2393, https://doi.org/10.1175/JTECH-D-13-00047.1, 2013.
Schmidlin, F. J., Luers, J. K., and Huffman, P.: Preliminary estimates of
radiosonde thermistor errors, NASA – National Aeronautics and Space Administration of USA, https://ntrs.nasa.gov/api/citations/19870002653/downloads/19870002653.pdf
(last access: 6 August 2021), 1986.
Vaisala: Vaisala Radiosonde RS41 Measurement Performance, https://www.vaisala.com/sites/default/files/documents/White paper RS41 Performance B211356EN-A.pdf, last access: 2 March 2022.
von Rohden, C., Sommer, M., Naebert, T., Motuz, V., and Dirksen, R. J.: Laboratory characterisation of the radiation temperature error of radiosondes and its application to the GRUAN data processing for the Vaisala RS41, Atmos. Meas. Tech., 15, 383–405, https://doi.org/10.5194/amt-15-383-2022, 2022.
Short summary
The measurement of temperature in the free atmosphere is of significance for weather prediction and climate monitoring. Radiosondes are used to measure essential climate variables in upper air. Herein, an upper-air simulator is developed, and its performance is evaluated to improve the measurement accuracy of radiosondes by reproducing the environments that may be encountered by radiosondes. The paper presents a methodology to correct the main source of error for the radiosonde measurements.
The measurement of temperature in the free atmosphere is of significance for weather prediction...
