Ice-core evidence for a small solar-source of atmospheric nitrate

• Published in: Geophysical Research Letters
• Main Authors: Palmer, AS, van Ommen, TD, Curran, MAJ, Morgan, VI
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2001
• Subjects: Earth Sciences; Physical Geography and Environmental Geoscience; Glaciology; East Antarctica; Law Dome; Antarc*; Antarctica; ice core
• Online Access: https://doi.org/10.1029/2000GL012207; http://ecite.utas.edu.au/23446

A precision-dated ice-core nitrate record from Law Dome, coastal East Antarctica is compared to the timing of known solar proton events and geomagnetic storms over the period 1888 to 1995. We find statistical evidence for a significant (P < 0.03) but small elevation in mean nitrate concentrations...