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Literature  \href{http://}{onlinelibrary.wiley.com/doi/10.1029/2011JD016035/full}  \href{http://onlinelibrary.wiley.com/doi/10.1029/2011JD016035/full} \href{http://onlinelibrary.wiley.com/doi/10.1029/2011JD016035/full}{}  \href{http://onlinelibrary.wiley.com/doi/10.1029/2011JD016623/full}  \href{http://onlinelibrary.wiley.com/doi/10.1029/2011JD016621/full}  \href{http://www.atmos-meas-tech.net/7/2567/2014/amt-7-2567-2014.pdf}