TY - JOUR A1 - Read, W. G. A1 - Schwartz, M. J. A1 - Lambert, A. A1 - Su, H. A1 - Livesey, N. J. A1 - Daffer, W. H. A1 - Boone, C. D. T1 - The roles of convection, extratropical mixing, and in-situ freeze-drying in the Tropical Tropopause Layer JO - Atmos. Chem. Phys. J1 - ACP VL - 8 IS - 20 SP - 6051 EP - 6067 Y1 - 2008/10/21 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/8/6051/2008/ L1 - http://www.atmos-chem-phys.net/8/6051/2008/acp-8-6051-2008.pdf DO - 10.5194/acp-8-6051-2008 ER -