{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:52:36Z","timestamp":1760241156668,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2019,12,13]],"date-time":"2019-12-13T00:00:00Z","timestamp":1576195200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100013855","name":"Ministry of the Environment","doi-asserted-by":"publisher","award":["2017000160001"],"award-info":[{"award-number":["2017000160001"]}],"id":[{"id":"10.13039\/501100013855","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Total column amounts of NO2 (TCN) were estimated from ground-based hyperspectral imaging sensor (HIS) measurements in a polluted urban area (Seoul, Korea) by applying the radiance ratio fitting method with five wavelength pairs from 400 to 460 nm. We quantified the uncertainty of the retrieved TCN based on several factors. The estimated TCN uncertainty was up to 0.09 Dobson unit (DU), equivalent to 2.687 \u00d7 1020 molecules m\u22122) given a 1\u00b0 error for the observation geometries, including the solar zenith angle, viewing zenith angle, and relative azimuth angle. About 0.1 DU (6.8%) was estimated for an aerosol optical depth (AOD) uncertainty of 0.01. In addition, the uncertainty due to the NO2 vertical profile was 14% to 22%. Compared with the co-located Pandora spectrophotometer measurements, the HIS captured the temporal variation of the TCN during the intensive observation period. The correlation between the TCN from the HIS and Pandora also showed good agreement, with a slight positive bias (bias: 0.6 DU, root mean square error: 0.7 DU).<\/jats:p>","DOI":"10.3390\/rs11243005","type":"journal-article","created":{"date-parts":[[2019,12,13]],"date-time":"2019-12-13T11:27:22Z","timestamp":1576236442000},"page":"3005","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Retrieval of NO2 Column Amounts from Ground-Based Hyperspectral Imaging Sensor Measurements"],"prefix":"10.3390","volume":"11","author":[{"given":"Hyeon-Ju","family":"Park","sequence":"first","affiliation":[{"name":"School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, Korea"}]},{"given":"Jin-Soo","family":"Park","sequence":"additional","affiliation":[{"name":"National Institute of Environmental Research, Incheon 22689, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1279-8331","authenticated-orcid":false,"given":"Sang-Woo","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, Korea"}]},{"given":"Heesung","family":"Chong","sequence":"additional","affiliation":[{"name":"Department of Atmospheric Sciences, Yonsei University, Seoul 03722, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5703-4792","authenticated-orcid":false,"given":"Hana","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Atmospheric Sciences, Yonsei University, Seoul 03722, Korea"}]},{"given":"Hyunjae","family":"Kim","sequence":"additional","affiliation":[{"name":"National Institute of Environmental Research, Incheon 22689, Korea"}]},{"given":"Joon-Young","family":"Ahn","sequence":"additional","affiliation":[{"name":"National Institute of Environmental Research, Incheon 22689, Korea"}]},{"given":"Dai-Gon","family":"Kim","sequence":"additional","affiliation":[{"name":"National Institute of Environmental Research, Incheon 22689, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1508-9218","authenticated-orcid":false,"given":"Jhoon","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Atmospheric Sciences, Yonsei University, Seoul 03722, Korea"}]},{"given":"Sang Seo","family":"Park","sequence":"additional","affiliation":[{"name":"School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, Korea"},{"name":"School of Urban &amp; Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2019,12,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1146\/annurev.ea.07.050179.002303","article-title":"The Role of NO and NO2 in the Chemistry of the Troposphere and Stratosphere","volume":"7","author":"Crutzen","year":"1979","journal-title":"Annu. Rev. Earth Planet. Sci."},{"key":"ref_2","unstructured":"Seinfeld, J.H., and Pandis, S.N. (2016). Atmospheric Chemistry and Physics: From Air Pollution to Climate Change, John Wiley & Sons."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"12047","DOI":"10.1029\/1999JD900035","article-title":"On the role of nitrogen dioxide in the absorption of solar radiation","volume":"104","author":"Solomon","year":"1999","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"616","DOI":"10.1080\/08940630.1988.10466404","article-title":"Ozone Air Quality Models","volume":"38","author":"Seinfeld","year":"1988","journal-title":"JAPCA"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"D20311","DOI":"10.1029\/2007JD009632","article-title":"Springtime transitions of NO2, CO, and O3 over North America: Model evaluation and analysis","volume":"113","author":"Choi","year":"2008","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"L17806","DOI":"10.1029\/2009GL039381","article-title":"Lightning and anthropogenic NOx sources over the United States and the western North Atlantic Ocean: Impact on OLR and radiative effects","volume":"36","author":"Choi","year":"2009","journal-title":"Geophys. Res. Lett."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"D13307","DOI":"10.1029\/2009JD011848","article-title":"NO2 column amounts from ground-based Pandora and MFDOAS spectrometers using the direct-sun DOAS technique: Intercomparisons and application to OMI validation","volume":"114","author":"Herman","year":"2009","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"287","DOI":"10.1007\/s10874-013-9255-8","article-title":"Spatial and temporal variability of ozone and nitrogen dioxide over a major urban estuarine ecosystem","volume":"72","author":"Tzortziou","year":"2015","journal-title":"J. Atmos. Chem."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"919","DOI":"10.1007\/BF00881042","article-title":"A replacement for the Dobson spectrophotometer?","volume":"106\u2013108","author":"Brewer","year":"1973","journal-title":"Pure Appl. Geophys."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"4731","DOI":"10.1029\/2001JD001227","article-title":"New methodology for deriving total ozone and other atmospheric variables from Brewer spectrophotometer direct sun spectra: New methodology using brewer direct sun spectra","volume":"107","author":"Kerr","year":"2002","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_11","first-page":"231","article-title":"Multi axis differential optical absorption spectroscopy","volume":"24","year":"2004","journal-title":"Atmos. Chem. Phys."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1027","DOI":"10.5194\/amt-4-1027-2011","article-title":"Eight-component retrievals from ground-based MAX-DOAS observations","volume":"4","author":"Irie","year":"2011","journal-title":"Atmos. Meas. Tech."},{"key":"ref_13","unstructured":"Ionov, D., Goutail, F., Pommereau, J.-P., Bazureau, A., Kyro, E., Portafaix, T., Held, G., Ericksen, P., and Dorokhov, V. (2006, January 8\u201312). Ten years of NO2 comparisons between ground-based SAOZ and satellite instruments (GOME, SCIAMACHY, OMI). Proceedings of the Atmospheric Science Conference, Frascati, Italy."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Celarier, E.A., Brinksma, E.J., Gleason, J.F., Veefkind, J.P., Cede, A., Herman, J.R., Ionov, D., Goutail, F., Pommereau, J.-P., and Lambert, J.-C. (2008). Validation of Ozone Monitoring Instrument nitrogen dioxide columns. J. Geophys. Res., 113.","DOI":"10.1029\/2007JD008908"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Wenig, M.O., Cede, A.M., Bucsela, E.J., Celarier, E.A., Boersma, K.F., Veefkind, J.P., Brinksma, E.J., Gleason, J.F., and Herman, J.R. (2008). Validation of OMI tropospheric NO2 column densities using direct-Sun mode Brewer measurements at NASA Goddard Space Flight Center. J. Geophys. Res., 113.","DOI":"10.1029\/2007JD008988"},{"key":"ref_16","first-page":"D16S39","article-title":"Comparison of OMI and ground-based in situ and MAX-DOAS measurements of tropospheric nitrogen dioxide in an urban area","volume":"113","author":"Kramer","year":"2008","journal-title":"J. Geophys. Res."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1049","DOI":"10.1029\/2018GL081095","article-title":"High-Resolution Mapping of Nitrogen Dioxide With TROPOMI: First Results and Validation Over the Canadian Oil Sands","volume":"46","author":"Griffin","year":"2019","journal-title":"Geophys. Res. Lett."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"2207","DOI":"10.4209\/aaqr.2017.09.0341","article-title":"Regional Characteristics of NO2 Column Densities from Pandora Observations during the MAPS-Seoul Campaign","volume":"18","author":"Chong","year":"2018","journal-title":"Aerosol Air Qual. Res."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.atmosenv.2017.03.034","article-title":"Validation of Brewer and Pandora measurements using OMI total ozone","volume":"160","author":"Baek","year":"2017","journal-title":"Atmos. Environ."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"3661","DOI":"10.5194\/amt-10-3661-2017","article-title":"Intercomparison of total column ozone data from the Pandora spectrophotometer with Dobson, Brewer, and OMI measurements over Seoul, Korea","volume":"10","author":"Kim","year":"2017","journal-title":"Atmos. Meas. Tech."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Park, J., Lee, H., Kim, J., Herman, J., Kim, W., Hong, H., Choi, W., Yang, J., and Kim, D. (2018). Retrieval Accuracy of HCHO Vertical Column Density from Ground-Based Direct-Sun Measurement and First HCHO Column Measurement Using Pandora. Remote Sens., 10.","DOI":"10.3390\/rs10020173"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"4583","DOI":"10.5194\/amt-11-4583-2018","article-title":"NO2 and HCHO measurements in Korea from 2012 to 2016 from Pandora spectrometer instruments compared with OMI retrievals and with aircraft measurements during the KORUS-AQ campaign","volume":"11","author":"Herman","year":"2018","journal-title":"Atmos. Meas. Tech."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"4943","DOI":"10.5194\/amt-11-4943-2018","article-title":"The first evaluation of formaldehyde column observations by improved Pandora spectrometers during the KORUS-AQ field study","volume":"11","author":"Spinei","year":"2018","journal-title":"Atmos. Meas. Tech."},{"key":"ref_24","unstructured":"(2016). Headwallphotonics. Hyperspec UV Imaging Sensor for the 250\u2013500 nm Spectral Range, Headwall Inc.. Available online: http:\/\/cdn2.hubspot.net\/hubfs\/145999\/docs\/UV-VIS.pdf."},{"key":"ref_25","first-page":"D16303","article-title":"High precision, absolute total column ozone measurements from the Pandora spectrometer system: Comparisons with data from a Brewer double monochromator and Aura OMI: Pandora total column ozone retrieval","volume":"117","author":"Tzortziou","year":"2012","journal-title":"J. Geophys. Res."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1855","DOI":"10.5194\/acp-5-1855-2005","article-title":"Technical note: The libRadtran software package for radiative transfer calculations\u2014Description and examples of use","volume":"5","author":"Mayer","year":"2005","journal-title":"Atmos. Chem. Phys."},{"key":"ref_27","unstructured":"Anderson, G., Clough, S., Kneizys, F., Chetwynd, J., and Shettle, E. (1986). AFGL Atmospheric Constituent Profiles (0.120km), Air Force Geophysics Laboratory. Tech. Rep. AFCL-TR86-0110."},{"key":"ref_28","unstructured":"Kurucz, R. (1992, January 2\u20136). Synthetic infrared spectra. Proceedings of the 154th Symposium of the International Astronomical Union (IAU), Tucson, AZ, USA."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1016\/S1010-6030(03)00062-5","article-title":"Measurements of molecular absorption spectra with the SCIAMACHY pre-flight model: Instrument characterization and reference data for atmospheric remote-sensing in the 230\u20132380 nm region","volume":"157","author":"Bogumil","year":"2003","journal-title":"J. Photochem. Photobiol. A Chem."},{"key":"ref_30","first-page":"4537","article-title":"Global inventory of nitrogen oxide emissions constrained by space-based observations of NO2 columns","volume":"108","author":"Martin","year":"2003","journal-title":"J. Geophys. Res."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1007\/s00704-003-0012-9","article-title":"Measured and modelled contributions to UV exposures by the albedo of surfaces in an urban environment","volume":"76","author":"Parisi","year":"2003","journal-title":"Theor. Appl. Climatol."},{"key":"ref_32","first-page":"4172","article-title":"Inversion algorithms for recovering minor species densities from limb scatter measurements at UV-visible wavelengths","volume":"107","author":"Auvinen","year":"2002","journal-title":"J. Geophys. Res."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"727","DOI":"10.1016\/j.asr.2003.06.042","article-title":"Trace gas column retrieval\u2014An error assessment study for GOME-2","volume":"34","author":"Weber","year":"2004","journal-title":"Adv. Space Res."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"5113","DOI":"10.5194\/amt-8-5113-2015","article-title":"A wide field-of-view imaging DOAS instrument for two-dimensional trace gas mapping from aircraft","volume":"8","author":"Altube","year":"2015","journal-title":"Atmos. Meas. Tech."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0034-4257(98)00031-5","article-title":"AERONET\u2014A Federated Instrument Network and Data Archive for Aerosol Characterization","volume":"66","author":"Holben","year":"1998","journal-title":"Remote Sens. Environ."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"663","DOI":"10.7780\/kjrs.2013.29.6.9","article-title":"Inter-comparison of NO2 column densities measured by Pandora and OMI over Seoul, Korea","volume":"29","author":"Yun","year":"2013","journal-title":"Korean J. Remote Sens."},{"key":"ref_37","first-page":"D13305","article-title":"Direct Sun measurements of NO2 column abundances from Table Mountain, California: Intercomparison of low- and high-resolution spectrometers","volume":"115","author":"Wang","year":"2010","journal-title":"J. Geophys. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1814","DOI":"10.1016\/j.jenvman.2008.11.025","article-title":"Spatial and temporal variations in NO2 distributions over Beijing, China measured by imaging differential optical absorption spectroscopy","volume":"90","author":"Lee","year":"2009","journal-title":"J. Environ. Manag."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/24\/3005\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:42:12Z","timestamp":1760190132000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/24\/3005"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,12,13]]},"references-count":38,"journal-issue":{"issue":"24","published-online":{"date-parts":[[2019,12]]}},"alternative-id":["rs11243005"],"URL":"https:\/\/doi.org\/10.3390\/rs11243005","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2019,12,13]]}}}