TY - JOUR A1 - Froyd, K. D. A1 - Murphy, D. M. A1 - Lawson, P. A1 - Baumgardner, D. A1 - Herman, R. L. T1 - Composition of cirrus-forming aerosols at the tropical tropopause JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 9 IS - 5 SP - 20347 EP - 20369 Y1 - 2009/09/29 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/9/20347/2009/ L1 - http://www.atmos-chem-phys-discuss.net/9/20347/2009/acpd-9-20347-2009.pdf DO - 10.5194/acpd-9-20347-2009 ER -