This document gives a recommendation for the payload configuration for performing dual soundings with two radiosondes. General guidelines are specified which aides the operator to prepare a payload for dual soundings. The recommendation is partly based on the results of Vaisala RS92-RS41 dual soundings performed at Lindenberg observatory using various configurations of the payload. In addition, general rules and guidelines are proposed for rigs with multiple-device payloads.

v1.0 (2016-08-12)

C. von Rohden, M. Sommer, R. Dirksen, First published version as GRUAN Technical Note 7(GRUAN-TN-7)

Dirksen et al. (2014):

Reference quality upper-air measurements: GRUAN data processing for the Vaisala RS92 radiosonde, Atmos. Meas. Tech., 7, 4463–4490, doi:10.5194/amt-7-4463-2014, available at www.atmos-meas-tech.net/7/4463/2014/ (last access 26 July 2016).

Nash, J., Oakley, T., Vomel, H., and Li, W. (2011):

WMO Intercomparison of high quality radiosonde observing systems, Yangjiang, China, 12 July – 3 August 2010, World Meteorological Organization Instruments and Observing Methods, Report IOM-107, WMO/TD-No. 1580, available at https://www.wmo.int/pages/prog/www/IMOP/publications/IOM-107_Yangjiang.pdf (last access 26 July 2016)

Shimizu, K., and F. Hasebe (2010):

Fast-response high-resolution temperature sonde aimed at contamination- free profile observations, Atmos. Meas. Tech., 3, 1673-1681, doi: 10.5194/amt-3-1673- 2010, available at http://www.atmos-meas-tech.net/3/1673/2010/amt-3-1673-2010.html (last access 26 July 2016).