Changes of Tritium Concentration in Precipitation of China in Two Decades

The ratio of 3H content of precipitation will not only provide important background information,but also for the use of isotopes for environmental science and the associated isotope hydrology,meteorology and environmental disciplines.The analysis was conducted on monthly and annual mean 3H content of precipitation for spatial and a fixed location by using the data of China(1985-2002)in Global Network of Isotopes in Precipitation(GNIP)Database.The tritium concentrations of temporal and spatial changes in trends and meteorological factors,geographic factors were discussed.

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