TY - JOUR A1 - Wolff, E. W. A1 - Jones, A. E. A1 - Bauguitte, S. J.-B. A1 - Salmon, R. A. T1 - The interpretation of spikes and trends in concentration of nitrate in polar ice cores, based on evidence from snow and atmospheric measurements JO - Atmos. Chem. Phys. J1 - ACP VL - 8 IS - 18 SP - 5627 EP - 5634 Y1 - 2008/09/24 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/8/5627/2008/ L1 - http://www.atmos-chem-phys.net/8/5627/2008/acp-8-5627-2008.pdf DO - 10.5194/acp-8-5627-2008 ER -