World-wide seasonal variation of 7Be related to large-scale atmospheric circulation dynamics

- Analysis of 7Be activity values measured from 63 IMS stations worldwide from 2001 to 2015.
- Observed 7Be global seasonal variation as an expression of atmospheric cell migration, ITCZ and HFCZ.
- Reconstruction of a global 7Be concentration map over time.
- Correlation between 7Be global patterns with tropopause height, Walker circulation, SSW, SEP and QBO.
- Onsets of 7Be activity concentrations as early warning indicator for emerging El Niños and Indian monsoons.