@Article{acp-5-1473-2005, AUTHOR = {Schmidt, T. and Heise, S. and Wickert, J. and Beyerle, G. and Reigber, C.}, TITLE = {GPS radio occultation with CHAMP and SAC-C: global monitoring of thermal tropopause parameters}, JOURNAL = {Atmospheric Chemistry and Physics}, VOLUME = {5}, YEAR = {2005}, NUMBER = {6}, PAGES = {1473--1488}, URL = {http://www.atmos-chem-phys.net/5/1473/2005/}, ISSN = {1680-7316} }