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Title: Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site

Abstract

In the fall of 2013, the Vaisala RS41 (fourth generation) radiosonde was introduced as a replacement for the RS92-SGP radiosonde with improvements in measurement accuracy of profiles of atmospheric temperature, humidity, and pressure. In order to help characterize these improvements, an intercomparison campaign was undertaken at the US Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility site in north-central Oklahoma, USA. During 3–8 June 2014, a total of 20 twin-radiosonde flights were performed in a variety of atmospheric conditions representing typical midlatitude continental summertime conditions. The results show that for most of the observed conditions the RS92 and RS41 measurements agree much better than the manufacturer-specified combined uncertainties with notable exceptions when exiting liquid cloud layers where the “wet-bulbing” effect appears to be mitigated for several cases in the RS41 observations. The RS41 measurements of temperature and humidity, with applied correction algorithms, also appear to show less sensitivity to solar heating. In addition, these results suggest that the RS41 does provide important improvements, particularly in cloudy conditions. For many science applications – such as atmospheric process studies, retrieval development, and weather forecasting and climate modeling – the differences between the RS92 and RS41 measurements should have little impact.more » However, for long-term trend analysis and other climate applications, additional characterization of the RS41 measurements and their relation to the long-term observational records will be required.« less

Authors:
 [1];  [2];  [3];  [3];  [4];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Vaisala Oyj, Helsinki (Finland)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); State University of New York, Geneseo, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1336077
Report Number(s):
BNL-112465-2016-JA
Journal ID: ISSN 1867-8548; R&D Project: 2016-BNL-EE630EECA-Budg; 86282; KP1701000
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Measurement Techniques (Online)
Additional Journal Information:
Journal Name: Atmospheric Measurement Techniques (Online); Journal Volume: 9; Journal Issue: 7; Journal ID: ISSN 1867-8548
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Jensen, Michael P., Holdridge, Donna J., Survo, Petteri, Lehtinen, Raisa, Baxter, Shannon, Toto, Tami, and Johnson, Karen L. Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site. United States: N. p., 2016. Web. doi:10.5194/amt-9-3115-2016.
Jensen, Michael P., Holdridge, Donna J., Survo, Petteri, Lehtinen, Raisa, Baxter, Shannon, Toto, Tami, & Johnson, Karen L. Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site. United States. doi:10.5194/amt-9-3115-2016.
Jensen, Michael P., Holdridge, Donna J., Survo, Petteri, Lehtinen, Raisa, Baxter, Shannon, Toto, Tami, and Johnson, Karen L. Wed . "Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site". United States. doi:10.5194/amt-9-3115-2016. https://www.osti.gov/servlets/purl/1336077.
@article{osti_1336077,
title = {Comparison of Vaisala radiosondes RS41 and RS92 at the ARM Southern Great Plains site},
author = {Jensen, Michael P. and Holdridge, Donna J. and Survo, Petteri and Lehtinen, Raisa and Baxter, Shannon and Toto, Tami and Johnson, Karen L.},
abstractNote = {In the fall of 2013, the Vaisala RS41 (fourth generation) radiosonde was introduced as a replacement for the RS92-SGP radiosonde with improvements in measurement accuracy of profiles of atmospheric temperature, humidity, and pressure. In order to help characterize these improvements, an intercomparison campaign was undertaken at the US Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility site in north-central Oklahoma, USA. During 3–8 June 2014, a total of 20 twin-radiosonde flights were performed in a variety of atmospheric conditions representing typical midlatitude continental summertime conditions. The results show that for most of the observed conditions the RS92 and RS41 measurements agree much better than the manufacturer-specified combined uncertainties with notable exceptions when exiting liquid cloud layers where the “wet-bulbing” effect appears to be mitigated for several cases in the RS41 observations. The RS41 measurements of temperature and humidity, with applied correction algorithms, also appear to show less sensitivity to solar heating. In addition, these results suggest that the RS41 does provide important improvements, particularly in cloudy conditions. For many science applications – such as atmospheric process studies, retrieval development, and weather forecasting and climate modeling – the differences between the RS92 and RS41 measurements should have little impact. However, for long-term trend analysis and other climate applications, additional characterization of the RS41 measurements and their relation to the long-term observational records will be required.},
doi = {10.5194/amt-9-3115-2016},
journal = {Atmospheric Measurement Techniques (Online)},
number = 7,
volume = 9,
place = {United States},
year = {2016},
month = {7}
}

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    Works referencing / citing this record:

    Is it feasible to estimate radiosonde biases from interlaced measurements?
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