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775 CE
2
atmospheric chemistry
2
nitrate
2
solar particle event
2
CIRCULATION
1
CLIMATE
1
Earth Sciences
1
Geology
1
Geosciences
1
Glaciology
1
IMPACT
1
IRRADIANCE
1
MODELS
1
Meteorology & Atmospheric Sciences
1
Multidisciplinary
1
Physical Geography and Environmental Geoscience
1
Physical Sciences
1
REANALYSES
1
RECONSTRUCTION
1
SORCE
1
Science & Technology
1
VARIABILITY
1
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