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Titel OMI tropospheric NO2 profiles from cloud slicing: constraints on surface emissions, convective transport and lightning NOx
VerfasserIn Maria Belmonte Rivas, Pepijn Veefkind, Henk Eskes, Pieternel Levelt
Konferenz EGU General Assembly 2015
Medientyp Artikel
Sprache Englisch
Digitales Dokument PDF
Erschienen In: GRA - Volume 17 (2015)
Datensatznummer 250104377
Publikation (Nr.) Volltext-Dokument vorhandenEGU/EGU2015-3797.pdf
 
Zusammenfassung
We derive a global climatology of tropospheric NO2 profiles from OMI cloudy observations for the year 2006 using the cloud slicing method on six pressure levels centered about 280, 380, 500, 620, 720 and 820 hPa. The vertical information contained in OMI tropospheric NO2 profiles provides global observational constraints that can be used to evaluate chemistry transport models (CTMs) and guide the development of their parameterization schemes. A comparison between OMI and the TM4 model reveals anomalies at the lowest levels that can be related to deficiencies in the model surface emission inventory, anomalies at mid tropospheric levels that can be related to convective transport and horizontal advective diffusion, and anomalies at the upper tropospheric levels that can be related to lightning NOx production and the placement of deeply transported NO2 plumes such as from the Asian summer monsoon.