General Earth and Planetary Sciences; Environmental Science (miscellaneous)
Abstract :
[en] We validate formaldehyde (HCHO) vertical column densities (VCDs) from Ozone Mapping and Profiler Suite Nadir Mapper (OMPS-NM) instruments onboard the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite for 2012–2020 and National Oceanic and Atmospheric Administration-20 (NOAA-20) satellite for 2018–2020, hereafter referred to as OMPS-NPP and OMPS-N20, with ground-based Fourier-Transform Infrared (FTIR) observations of the Network for the Detection of Atmospheric Composition Change (NDACC). OMPS-NPP/N20 HCHO products reproduce seasonal variability at 24 FTIR sites. Monthly variability of OMPS-NPP/N20 has a very good agreement with FTIR, showing correlation coefficients of 0.83 and 0.88, respectively. OMPS-NPP (N20) biases averaged over all sites are −0.9 (4) ± 3 (6)%. However, at clean sites (with VCDs < 4.0 × 1015 molecules cm−2), positive biases of 20 (32) ± 6 (18)% occur for OMPS-NPP (N20). At sites with HCHO VCDs > 4.0 × 1015 molecules cm−2, negative biases of −15% ± 4% appear for OMPS-NPP, but OMPS-N20 shows smaller bias of 0.5% ± 6% due to its smaller ground pixel footprints. Therefore, smaller satellite footprint sizes are important in distinguishing small-scale plumes. In addition, we discuss a bias correction and provide lower limit for the monthly uncertainty of OMPS-NPP/N20 HCHO products. The total uncertainty for OMPS-NPP (N20) at clean sites is 0.7 (0.8) × 1015 molecules cm−2, corresponding to a relative uncertainty of 32 (30)%. In the case of HCHO VCDs > 4.0 × 1015 molecules cm−2, however, the relative uncertainty in HCHO VCDs for OMPS-NPP (N20) decreases to 31 (18)%.
Research center :
SPHERES - ULiège
Disciplines :
Earth sciences & physical geography
Author, co-author :
Kwon, H.‐A. ; Center for Astrophysics Harvard & Smithsonian Cambridge MA USA ; Now at the University of Suwon Gyeonggi‐do Republic of Korea
Abad, G. González ; Center for Astrophysics Harvard & Smithsonian Cambridge MA USA
Nowlan, C. R. ; Center for Astrophysics Harvard & Smithsonian Cambridge MA USA
Chong, H.; Center for Astrophysics Harvard & Smithsonian Cambridge MA USA
Souri, A. H. ; Center for Astrophysics Harvard & Smithsonian Cambridge MA USA ; Now at NASA Goddard Space Flight Center Greenbelt MA USA ; Now at Morgan State University Baltimore MA USA
Vigouroux, C. ; Royal Belgian Institute for Space Aeronomy (BIRA‐IASB) Brussels Belgium
Röhling, A. ; Karlsruhe Institute of Technology (KIT) IMK‐ASF Karlsruhe Germany
Kivi, R. ; Finnish Meteorological Institute (FMI) Sodankylä Finland
Makarova, M.; Atmospheric Physics Department Saint Petersburg State University St. Petersburg Russia
Notholt, J. ; Institute of Environmental Physics University of Bremen Bremen Germany
Palm, M. ; Institute of Environmental Physics University of Bremen Bremen Germany
Winkler, H. ; Institute of Environmental Physics University of Bremen Bremen Germany
Té, Y. ; Laboratoire d’Études du Rayonnement et de la Matière en Astrophysique et Atmosphères (LERMA‐IPSL) Sorbonne Université CNRS Observatoire de Paris PSL Université Paris France
Sussmann, R.; Karlsruhe Institute of Technology (KIT) IMK‐IFU Garmisch‐Partenkirchen Germany
Rettinger, M.; Karlsruhe Institute of Technology (KIT) IMK‐IFU Garmisch‐Partenkirchen Germany
Mahieu, Emmanuel ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Groupe infra-rouge de physique atmosphérique et solaire (GIRPAS)
Strong, K. ; Department of Physics University of Toronto Toronto ON Canada
Lutsch, E. ; Department of Physics University of Toronto Toronto ON Canada
Yamanouchi, S. ; Department of Physics University of Toronto Toronto ON Canada
Nagahama, T.; Institute for Space‐Earth Environmental Research (ISEE) Nagoya University Nagoya Japan
Hannigan, J. W. ; Atmospheric Chemistry, Observations & Modeling National Center for Atmospheric Research (NCAR) Boulder CO USA
Zhou, M. ; Institute of Atmospheric Physics Chinese Academy of Sciences (CAS) Beijing China
Murata, I.; Graduate School of Environmental Studies Tohoku University Sendai Japan
Grutter, M. ; Instituto de Ciencias de la Atmósfera y Cambio Climático Universidad Nacional Autónoma de México (UNAM) Mexico City México
Stremme, W.; Instituto de Ciencias de la Atmósfera y Cambio Climático Universidad Nacional Autónoma de México (UNAM) Mexico City México
De Mazière, M.; Royal Belgian Institute for Space Aeronomy (BIRA‐IASB) Brussels Belgium
Jones, N. ; Centre for Atmospheric Chemistry University of Wollongong Wollongong Australia
Smale, D.; National Institute of Water and Atmospheric Research Ltd (NIWA) Lauder New Zealand
Morino, I. ; National Institute for Environmental Studies Tsukuba Japan
NOAA - National Oceanic and Atmospheric Administration [US-DC] [US-DC] NASA - National Aeronautics and Space Administration [US-DC] [US-DC] F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] Office Fédéral de Météorologie et de Climatologie MétéoSuisse [CH]
Funding text :
NOAA’s Climate Program Office’s; NASA Science Mission Directorate
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