Articles | Volume 21, issue 14
Research article
23 Jul 2021
Research article |  | 23 Jul 2021

Comprehensive evaluations of diurnal NO2 measurements during DISCOVER-AQ 2011: effects of resolution-dependent representation of NOx emissions

Jianfeng Li, Yuhang Wang, Ruixiong Zhang, Charles Smeltzer, Andrew Weinheimer, Jay Herman, K. Folkert Boersma, Edward A. Celarier, Russell W. Long, James J. Szykman, Ruben Delgado, Anne M. Thompson, Travis N. Knepp, Lok N. Lamsal, Scott J. Janz, Matthew G. Kowalewski, Xiong Liu, and Caroline R. Nowlan

Data sets

DISCOVER-AQ P-3B Aircraft in-situ Trace Gas Measurements NASA/LARC/SD/ASDC

Air Data: Pre-Generated Data Files EPA

OMI/Aura Nitrogen Dioxide (NO2) Total and Tropospheric Column 1-orbit L2 Swath 13x24 km V003 N. A. Krotkov, L. N. Lamsal, S. V. Marchenko, E. J. Bucsela, W. H. Swartz, J. Joiner, and the OMI core team

Tropospheric NO2 from satellites KNMI/ESA

Total and Tropospheric NO2 columns from GOME2 (METOP-A) KNMI/BIRA-IASB

NCCS Dataportal – Datashare NASA

ACAM O3, NO2 and HCHO columns from SAO retrieval algorithm X. Liu

NCEP/CPC Four Kilometer Precipitation Set, Gauge and Radar, Research Data Archive at the National Center for Atmospheric Research CODIAC, EOL, NCAR, UCAR, CPC, NCEP, NWS, NOAA, and DOC

NCEP climate forecast system version 2 (CFSv2) 6-hourly products S. Saha, S. Moorthi, X. Wu, J. Wang, S. Nadiga, P. Tripp, D. Behringer, Y. T. Hou, H.-y. Chuang, and M. Iredell

High-resolution NO2 observations from the Airborne Compact Atmospheric Mapper: Retrieval and validation L. N. Lamsal, S. J. Janz, N. A. Krotkov, K. E. Pickering, R. J. D. Spurr, M. G. Kowalewski, C. P. Loughner, J. H. Crawford, W. H. Swartz, and J. Herman

Short summary
Comprehensive evaluations of simulated diurnal cycles of NO2 and NOy concentrations, vertical profiles, and tropospheric vertical column densities at two different resolutions with various measurements during the DISCOVER-AQ 2011 campaign show potential distribution biases of NOx emissions in the National Emissions Inventory 2011 at both 36 and 4 km resolutions, providing another possible explanation for the overestimation of model results.
Final-revised paper