Concentration of nitrate in the Guliya ice core from the Qinghai-Xizang Plateau and the solar activity
Tóm tắt
The variations of NO3+- conccntration in the Guliya ice core are reconstructed for recent about 1 000 a. Spectrum analysis of NO3+- indicates significant periodicities in the variations of NO3+- concentration, which coincide with the periodicities of the solar activity. Therefore, a positive correlation between thc variations of NO3+- concentration and the solar activity is found.
Tài liệu tham khảo
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