@Article{acpd-4-6067-2004, AUTHOR = {Frankenberg, C. and Platt, U. and Wagner, T.}, TITLE = {Iterative maximum a posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH$_{4}$ and CO$_{2}$ retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {4}, YEAR = {2004}, NUMBER = {5}, PAGES = {6067--6106}, URL = {http://www.atmos-chem-phys-discuss.net/4/6067/2004/}, ISSN = {1680-7367} }