TY - JOUR A1 - Leitão, J. A1 - Richter, A. A1 - Vrekoussis, M. A1 - Kokhanovsky, A. A1 - Zhang, Q. J. A1 - Beekmann, M. A1 - Burrows, J. P. T1 - On the improvement of NO2 satellite retrievals – aerosol impact on the airmass factors JO - Atmos. Meas. Tech. Discuss. J1 - AMTD VL - 2 IS - 6 SP - 3221 EP - 3264 Y1 - 2009/12/11 PB - Copernicus Publications SN - 1867-8610 UR - http://www.atmos-meas-tech-discuss.net/2/3221/2009/ L1 - http://www.atmos-meas-tech-discuss.net/2/3221/2009/amtd-2-3221-2009.pdf DO - 10.5194/amtd-2-3221-2009 ER -