Modified HNO3 seasonality in volcanic layers of a polar ice core - Snow-pack effect or photochemical perturbation?

• Main Authors: Laj, Paolo, Palais, Julie M., Gardner, James E., Sigurdsson, Haraldur
• Format: Other/Unknown Material
• Language: unknown
• Published: 1993
• Subjects: 46; Arctic; Greenland; Laki; ice core
• Online Access: http://ntrs.nasa.gov/search.jsp?R=19930054325

Changes in atmospheric HNO3 chemistry following the Laki (1783), Tambora (1815), and Katmai (1912) volcanic eruptions are presently investigated in view of a central Greenland ice core's chemical composition. Attention is given to the concentration of several cations and anions, using ion chrom...