{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:28:40Z","timestamp":1753871320953,"version":"3.41.2"},"reference-count":40,"publisher":"American Geophysical Union (AGU)","issue":"D5","license":[{"start":{"date-parts":[[2010,3,13]],"date-time":"2010-03-13T00:00:00Z","timestamp":1268438400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Geophys. Res."],"published-print":{"date-parts":[[2010,3,16]]},"abstract":"<jats:p>Daily total ozone column (TOC) measurements from the Brewer spectroradiometer located at El Arenosillo (Spain) and the Spectrometer for Atmospheric TRAcers Monitoring (SPATRAM) located at \u00c9vora (Portugal) are analyzed for the period 2006\u20132008. The main goal of this study is to compare TOC estimates retrieved with the passive differential optical absorption spectroscopy (DOAS) methodology from zenith\u2010sky observations by the SPATRAM spectrometer with highly accurate TOC estimates retrieved from direct\u2010sun recordings by a well\u2010calibrated Brewer instrument. On average, SPATRAM TOC estimates are (1.69 \u00b1 0.18)% smaller than collocated Brewer TOC estimates. Significant relative differences between SPATRAM and Brewer total ozone data are detected in some periods caused by the influence of high aerosol load episodes over the SPATRAM data. Satellite data recorded by the ozone monitoring instrument (OMI)\u2010DOAS algorithm aboard the NASA EOS\u2010Aura satellite have been used to quantify the natural spatial variability of TOC over the region of interest as a potential source of uncertainty in the SPATRAM\u2010Brewer comparison. Our results show that the differences observed between both systems is not associated with the natural spatial variability of TOC. In addition, the OMI\u2010DOAS total ozone data have been compared to the ground\u2010based spectroradiometer data showing an excellent agreement for the Brewer spectroradiometer (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup> \u223c 0.95) and a fairly good agreement for the SPATRAM instrument (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup> \u223c 0.89).<\/jats:p>","DOI":"10.1029\/2009jd012514","type":"journal-article","created":{"date-parts":[[2010,3,12]],"date-time":"2010-03-12T21:00:25Z","timestamp":1268427625000},"source":"Crossref","is-referenced-by-count":6,"title":["Total ozone column from direct and diffuse spectral solar irradiance in the southwest of the Iberian Peninsula"],"prefix":"10.1029","volume":"115","author":[{"given":"M.","family":"Ant\u00f3n","sequence":"first","affiliation":[{"name":"Departamento de F\u00edsica Universidad de Extremadura  Badajoz Spain"},{"name":"\u00c9vora Geophysics Centre University of \u00c9vora  \u00c9vora Portugal"}]},{"given":"D.","family":"Bortoli","sequence":"additional","affiliation":[{"name":"\u00c9vora Geophysics Centre University of \u00c9vora  \u00c9vora Portugal"},{"name":"Institute for Atmospheric Sciences and Climate  Bologna Italy"}]},{"given":"J. M.","family":"Vilaplana","sequence":"additional","affiliation":[{"name":"Estaci\u00f3n de Sondeos Atmosf\u00e9rico \u201cEl Arenosillo,\u201d Instituto Nacional de T\u00e9cnica Aeroespacial  Huelva Spain"}]},{"given":"A. M.","family":"Silva","sequence":"additional","affiliation":[{"name":"\u00c9vora Geophysics Centre University of \u00c9vora  \u00c9vora Portugal"},{"name":"Department of Physics University of \u00c9vora  \u00c9vora Portugal"}]},{"given":"A.","family":"Serrano","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica Universidad de Extremadura  Badajoz Spain"},{"name":"\u00c9vora Geophysics Centre University of \u00c9vora  \u00c9vora Portugal"}]},{"given":"M. J.","family":"Costa","sequence":"additional","affiliation":[{"name":"\u00c9vora Geophysics Centre University of \u00c9vora  \u00c9vora Portugal"},{"name":"Department of Physics University of \u00c9vora  \u00c9vora Portugal"}]},{"given":"B.","family":"de la Morena","sequence":"additional","affiliation":[{"name":"Estaci\u00f3n de Sondeos Atmosf\u00e9rico \u201cEl Arenosillo,\u201d Instituto Nacional de T\u00e9cnica Aeroespacial  Huelva Spain"}]},{"given":"M.","family":"Kroon","sequence":"additional","affiliation":[{"name":"Royal Netherlands Meteorological Institute  De Bilt Netherlands"}]}],"member":"13","published-online":{"date-parts":[[2010,3,13]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1029\/2007GL029689"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.5194\/angeo-26-401-2008"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1029\/2008GL035290"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.5194\/angeo-27-1377-2009"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1029\/2009JD012003"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1029\/2007JD008796"},{"key":"e_1_2_7_8_1","unstructured":"Bortoli D.(2005) SPATRAM: Spectrometer for ATmospheric TRAcers Measurements a prototype equipment for the monitoring of minor compounds of the atmosphere Ph.D. thesis Univ. of Evora Evora Portugal."},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1080\/01431160500076418"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1080\/01431160902822849"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1364\/OE.17.012944"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1080\/01431160902896231"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.5194\/acp-3-1409-2003"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-4073(97)00197-0"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-4073(98)00037-5"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1029\/2001JD001227"},{"key":"e_1_2_7_17_1","first-page":"396","volume-title":"Atmospheric Ozone: Proceedings of the Quadrennial Ozone Symposium Held in Halkidiki, Greece, September 3\u20137, 1984","author":"Kerr J. 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