GCOS Reference Upper-Air Network
GRUAN News
News of network, community and related science
Community Meeting
ICM-16 recordings online
The recordings of the presentations at ICM-16 are available under the Agenda-tab at the ICM-16 page.
Document
Publication of the GRUAN Manual-Guide (GCOS-271)
The GRUAN manual-guide replaces the existing GRUAN manual (GCOS-170) and guide (GCOS-171), and provides an update for various operational aspects of…
Document Station
GRUAN Technical Note 10 published
GRUAN Technical Note 10 (GRUAN-TN-10) published with title "Data policy and data distribution strategy"
Station
GRUAN certification of Hong Kong
The GRUAN radiosounding measurement program at Hong Kong has been certified by GRUAN.
Meeting Document
ICM-16 meeting report published
The report of the GRUAN ICM-16 meeting is available for download.
File archive
Shut down of old FTP server
As announced during ICM-16, GRUAN's old central FTP server (filetransfer.gruan.info) is now being shut down.
Meeting
ICM-16: 17 to 21 November 2025 in Tenerife, Spain
The ICM-16 took place from November 17 to 21, 2025 in Tenerife, Spain. All presentations are now available.
Station
GRUAN certification of Tenerife (TEN)
The GRUAN radiosounding and GNSS programs at Tenerife have been certified by GRUAN.
Station
GRUAN certification of Xilinhot (XIL)
The GRUAN radiosounding program at Xilinhot has been certified by GRUAN.
Article
Meteorological Applications paper Kim et al. 2025 published
The manuscript "Evaluating Calibration Uncertainty and Response Time of RS41 Humidity Sensors Under a Ventilation Speed of 5 m s−1" has been published…
Article
J-Stage paper Kuo et al. 2025 published
The manuscript "Data Quality Control and Calibration for Mini-Radiosonde System “Storm Tracker” in Taiwan" has been published on Journal of the…
Article
JAMES paper Borella et al. 2025 published
The manuscript "A new prognostic parameterization of subgrid ice supersaturation and cirrus clouds in the ICOLMDZ AGCM" has been published on Journal…
Article
AMT paper Fujiwara et al. 2025 published
The manuscript "Justification for high-ascent attainment for balloon radiosonde soundings at GRUAN and other sites" has been published on Atmospheric…
Article
EGUsphere paper Poltera et al. 2025 in review
The following GRUAN-relevant paper was published at EGUsphere [preprint]: "The “Golden Points” and nonequilibrium correction of high-accuracy frost…
Article
AMT paper Cimini et al. 2025 published
The manuscript "Atmospheric stability from numerical weather prediction models and microwave radiometer observations for onshore and offshore wind…