Please note: Ionosonde data is currently unavailable to the public due to processing issues. We are working to resolve the issue as soon as possible, but data may be unavailable for several months. Data will be backfilled once it becomes available. We apologize for any inconvenience.
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Please note: Due to a system outage, NCEI Users should expect delays accessing many datasets. We are working to resolve these issues as soon as possible. We apologize for any inconvenience.