Circulation of cosmogenic ~(22)Na using the global monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO)

摘要

Using a recently published global data set of Na-22 and Be-7 from the global monitoring network of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), atmospheric circulation and stratosphere-troposphere interactions are examined. Cosmogenic Na-22 has a half-life well-suited to environmental processes with durations from several months to a decade. Combined with corresponding Be-7 observations, these two cosmogenic isotopes form a useful environmental tracer and new radiochronometer to study physical interactions of air masses in the stratosphere and troposphere.