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- Title
Evaluation of version 3.0B of the BEHR OMI NO<sub>2</sub> product.
- Authors
Laughner, Joshua L.; Qindan Zhu; Cohen, Ronald
- Abstract
Version 3.0B of the Berkeley High Resolution (BEHR) OMI NO2 product is designed to accurately retrieve daily variation in the high spatial resolution mapping of tropospheric column NO2. To assess the product, we compare against in situ aircraft profiles and Pandora vertical column densities (VCDs). We also compare the WRF-Chem simulation used to generate the a priori NO2 profiles against observations. We find that using daily NO2 profiles improves the VCDs retrieved in urban areas relative to low resolution or monthly a priori by amounts that are large compared to current uncertainties in NOx emissions and chemistry (of order 10% to 30%). Based on this analysis, we offer suggestions to consider when designing retrieval algorithms and validation procedures for upcoming geostationary satellites.
- Subjects
NITROGEN oxides &; the environment; TROPOSPHERE; METEOROLOGICAL research
- Publication
Atmospheric Measurement Techniques Discussions, 2018, p1
- ISSN
1867-8610
- Publication type
Article
- DOI
10.5194/amt-2018-248