{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362257544826893312.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.5194/amt-2019-157"}},{"identifier":{"@type":"URI","@value":"https://www.atmos-meas-tech-discuss.net/amt-2019-157/amt-2019-157.pdf"}}],"resourceType":"preprint","dc:title":[{"@value":"Intercomparison of NO\n                  <sub>2</sub>\n                  , O\n                  <sub>4</sub>\n                  , O\n                  <sub>3</sub>\n                  and HCHO slant column measurements by  MAX-DOAS  and  zenith-sky  UV-Visible  spectrometers during  the CINDI-2 campaign"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Abstract. In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for a period of 17 days during the Second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) that took place at Cabauw, The Netherlands (51.97° N, 4.93° E). We report on the outcome of the formal semi-blind intercomparison exercise, which was held under the umbrella of the Network for the Detection of Atmospheric Composition Change (NDACC) and the European Space Agency (ESA). The three major goals of CINDI-2 were to characterise and better understand the differences between a large number of Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) and zenith-sky DOAS instruments and analysis methods, to discuss the performance of the various types of instruments and to contribute to a harmonisation of the measurement settings and retrieval methods. This, in turn, creates the capability to produce consistent high-quality ground-based data sets, which are an essential requirement to generate reliable long-term measurement time series suitable for trend analysis and satellite data validation.   The data products investigated during the semi-blind intercomparison are slant columns of nitrogen dioxide (NO2), the oxygen dimer (O4) and ozone (O3) measured in the UV and visible wavelength region, formaldehyde (HCHO) in the UV spectral region and NO2 in an additional (smaller) wavelength range in the visible. The campaign design and implementation processes are discussed in detail including the measurement protocol, calibration procedures and slant column retrieval settings. Strong emphasis was put on the careful alignment and synchronisation of the measurement systems, resulting in an unprecedented set of measurements made under highly comparable air mass conditions.   The CINDI-2 data sets were investigated using a regression analysis of the slant columns measured by each instrument and for each of the target data products. The slope and intercept of the regression analysis respectively quantify the mean systematic bias and offset of the individual data sets against the reference, and the RMS error provides an estimate of the measurement noise or dispersion. These three criteria are examined and for each of the parameters and each of the data products, performance thresholds are set and applied to all the measurements. The approach presented here has been developed based on heritage from previous intercomparison exercises. It introduces a quantitative assessment of the measurement performance of all the participating instruments for the MAX-DOAS and zenith-sky DOAS techniques.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382257544826893340","@type":"Researcher","foaf:name":[{"@value":"Karin Kreher"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893070","@type":"Researcher","foaf:name":[{"@value":"Michel Van Roozendael"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893206","@type":"Researcher","foaf:name":[{"@value":"Francois Hendrick"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893197","@type":"Researcher","foaf:name":[{"@value":"Arnoud Apituley"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893341","@type":"Researcher","foaf:name":[{"@value":"Ermioni Dimitropoulou"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893312","@type":"Researcher","foaf:name":[{"@value":"Udo Frieß"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893207","@type":"Researcher","foaf:name":[{"@value":"Andreas Richter"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893326","@type":"Researcher","foaf:name":[{"@value":"Thomas Wagner"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893337","@type":"Researcher","foaf:name":[{"@value":"Nader Abuhassan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893071","@type":"Researcher","foaf:name":[{"@value":"Li Ang"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893184","@type":"Researcher","foaf:name":[{"@value":"Monica Anguas"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893329","@type":"Researcher","foaf:name":[{"@value":"Alkis Bais"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893317","@type":"Researcher","foaf:name":[{"@value":"Nuria Benavent"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893200","@type":"Researcher","foaf:name":[{"@value":"Tim Bösch"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893187","@type":"Researcher","foaf:name":[{"@value":"Kristof Bognar"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893443","@type":"Researcher","foaf:name":[{"@value":"Alexander Borovski"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893323","@type":"Researcher","foaf:name":[{"@value":"Ilya Bruchkouski"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893067","@type":"Researcher","foaf:name":[{"@value":"Alexander Cede"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893201","@type":"Researcher","foaf:name":[{"@value":"Ka L. 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Xie"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893209","@type":"Researcher","foaf:name":[{"@value":"Jin Xu"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893334","@type":"Researcher","foaf:name":[{"@value":"Margarita Yela"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893194","@type":"Researcher","foaf:name":[{"@value":"Chengxin Zhang"}]},{"@id":"https://cir.nii.ac.jp/crid/1382257544826893336","@type":"Researcher","foaf:name":[{"@value":"Xiaoyi Zhao"}]}],"publication":{"dc:publisher":[{"@value":"Copernicus GmbH"}],"prism:publicationDate":"2019-05-27"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://www.atmos-meas-tech-discuss.net/amt-2019-157/amt-2019-157.pdf"}],"createdAt":"2019-05-27","modifiedAt":"2025-01-31","project":[{"@id":"https://cir.nii.ac.jp/crid/1040282256991752832","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"19H04235"},{"@type":"JGN","@value":"JP19H04235"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H04235/"}],"notation":[{"@language":"ja","@value":"国際観測網と気候モデルによる有機エアロゾルの紫外可視光吸収特性に関する研究の推進"},{"@language":"en","@value":"Promotion of study on the UV-visible optical absorption property of organic aerosols using a ground-based observation network and a climate model"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360013168793769088","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isPreprintOf"],"jpcoar:relatedTitle":[{"@value":"Intercomparison of NO\n                    <sub>2</sub>\n                    , O\n                    <sub>4</sub>\n                    , O\n                    <sub>3</sub>\n                    and HCHO slant column measurements by MAX-DOAS and zenith-sky UV–visible spectrometers during CINDI-2"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942151459712","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Continuous multi-component MAX-DOAS observations for the planetary boundary layer ozone variation analysis at Chiba and Tsukuba, Japan, from 2013 to 2019"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.5194/amt-2019-157"},{"@type":"KAKEN","@value":"PRODUCT-22983846"},{"@type":"CROSSREF","@value":"10.5194/amt-13-2169-2020_hasPreprint_DOI_DkxySyxtgnie6mMdio9ypKwBWgQ"},{"@type":"CROSSREF","@value":"10.1186/s40645-021-00424-9_references_DOI_DkxySyxtgnie6mMdio9ypKwBWgQ"}]}