SOP

During the Cinese Arctic Cruise in 2018 frequent radiosoundings were launched in support of YOPP Special Observation Period along the path of XUELONG ice breaker. The radiosoundes were launched 2-3 times per day from July 28th to September 3rd in the Arctic Ocean and a total of 76 soundings data were shared through WMO GTS in BUFR format. These BUFR files are now available for download at:

http://data.wis.cma.cn/GTS/open/BUFR/Upper_air/Arctic_Xuelong

Radiosonde and SYNOPs for Baranova and Tiksi stations for the YOPP SOP NH1 and NH2 are now available at

• http://www.aari.ru/main.php?lg=1&id=407 (Baranova)
• http://www.aari.ru/main.php?lg=1&id=273 (Tiksi)

Data are yet not indexed in the YOPP catalogue. Work is in progress to index these datasets.

British Antarctic Survey (BAS) is collecting radiosonde data that were produced during YOPP Southern Hemisphere Special Observing Period (SOP). These data are stored on a FTP server by BAS which is available at ftp://ftp.bas.ac.uk/src/YOPP-SH/radiosondes/.