Physical processes controlling the distribution of relative humidity in the tropical tropopause layer over the Pacific

Eric J Jensen1, Rei Ueyama2, Leonhard Pfister2, Thaopaul V Bui3, Jasna V. Pittman4, Troy D Thornberry5, Andrew W Rollins5, Eric J Hintsa6, Glenn S Diskin7, Joshua P DiGangi8, Sarah Woods9, Paul Lawson10 and Karen Hepler Rosenlof11, (1)National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO, United States, (2)NASA Ames Research Center, Moffett Field, CA, United States, (3)NASA Ames Research Center, Moffett Field, United States, (4)Harvard University, Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, United States, (5)NOAA Chemical Sciences Laboratory, Boulder, United States, (6)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (7)NASA Langley Research Center, Hampton, United States, (8)NASA Langley Research Center, Hampton, VA, United States, (9)SPEC Inc., Boulder, CO, United States, (10)SPEC Inc, Boulder, CO, United States, (11)Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States