TY - JOUR A1 - Orsolini, Y. J. A1 - Urban, J. A1 - Murtagh, D. P. T1 - Nitric acid in the stratosphere based on Odin observations from 2001 to 2007 – Part 2: High-altitude polar enhancements JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 8 IS - 3 SP - 9591 EP - 9605 Y1 - 2008/05/26 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/8/9591/2008/ L1 - http://www.atmos-chem-phys-discuss.net/8/9591/2008/acpd-8-9591-2008.pdf DO - 10.5194/acpd-8-9591-2008 ER -