ftp/pub/southpole/climat/upper_air/readme.txt
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Updates and Comments regarding the data in this directory:
Any questions or comments can be directed to amrc@ssec.wisc.edu.
06/24/09 -- Since June 22, 2009, radiosonde observations from South Pole
Station and McMurdo Station do not have wind observations
(or have very few). This problem is likely related to a GPS
satellite problem, but the exact cause is still under
investigation. Until it is resolved, wind observations from
both South Pole and McMurdo Station radiosondes are expected
to be lacking this information. We will provide more
information as it becomes available.