@article{Wang_2014, doi = {10.5194/amt-7-3295-2014}, url = {https://doi.org/10.5194%2Famt-7-3295-2014}, year = 2014, month = {oct}, publisher = {Copernicus {GmbH}}, volume = {7}, number = {10}, pages = {3295--3305}, author = {Z. Wang and N. M. Deutscher and T. Warneke and J. Notholt and B. Dils and D. W. T. Griffith and M. Schmidt and M. Ramonet and C. Gerbig}, title = {Retrieval of tropospheric column-averaged {CH}{\&}amp$\mathsemicolon$lt$\mathsemicolon$sub{\&}amp$\mathsemicolon$gt$\mathsemicolon$4{\&}amp$\mathsemicolon$lt$\mathsemicolon$/sub{\&}amp$\mathsemicolon$gt$\mathsemicolon$ mole fraction by solar absorption {FTIR}-spectrometry using N{\&}amp$\mathsemicolon$lt$\mathsemicolon$sub{\&}amp$\mathsemicolon$gt$\mathsemicolon$2{\&}amp$\mathsemicolon$lt$\mathsemicolon$/sub{\&}amp$\mathsemicolon$gt$\mathsemicolon$O as a proxy}, journal = {Atmospheric Measurement Techniques} }