TY - JOUR A1 - Levine, J. G. A1 - Braesicke, P. A1 - Harris, N. R. P. A1 - Pyle, J. A. T1 - Seasonal and inter-annual variations in Troposphere-to-Stratosphere Transport from the Tropical Tropopause Layer JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 8 IS - 1 SP - 489 EP - 520 Y1 - 2008/01/10 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/8/489/2008/ L1 - http://www.atmos-chem-phys-discuss.net/8/489/2008/acpd-8-489-2008.pdf DO - 10.5194/acpd-8-489-2008 ER -