Quality control procedures and methods of the CARINA database
Data on the carbon and carbon relevant hydrographic and hydrochemical parameters from previously not publicly available cruises in the Arctic, Atlantic and Southern Ocean have been retrieved and merged to a new data base: CARINA (CARbon IN the Atlantic). These data have gone through rigorous quality...
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ftdoajarticles:oai:doaj.org/article:e5478d5f027546f58078380452fff624 2023-05-15T14:59:54+02:00 Quality control procedures and methods of the CARINA database T. Tanhua S. van Heuven R. M. Key A. Velo A. Olsen C. Schirnick 2010-02-01T00:00:00Z https://doi.org/10.5194/essd-2-35-2010 https://doaj.org/article/e5478d5f027546f58078380452fff624 EN eng Copernicus Publications http://www.earth-syst-sci-data.net/2/35/2010/essd-2-35-2010.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-2-35-2010 1866-3508 1866-3516 https://doaj.org/article/e5478d5f027546f58078380452fff624 Earth System Science Data, Vol 2, Iss 1, Pp 35-49 (2010) Environmental sciences GE1-350 Geology QE1-996.5 article 2010 ftdoajarticles https://doi.org/10.5194/essd-2-35-2010 2022-12-31T10:21:01Z Data on the carbon and carbon relevant hydrographic and hydrochemical parameters from previously not publicly available cruises in the Arctic, Atlantic and Southern Ocean have been retrieved and merged to a new data base: CARINA (CARbon IN the Atlantic). These data have gone through rigorous quality control (QC) procedures to assure the highest possible quality and consistency. All CARINA data were subject to primary QC; a process in which data are studied in order to identify outliers and obvious errors. Additionally, secondary QC was performed for several of the measured parameters in the CARINA data base. Secondary QC is a process in which the data are objectively studied in order to quantify systematic differences in the reported values. This process involved crossover analysis, and as a second step the offsets derived from the crossover analysis were used to calculate corrections of the parameters measured on individual cruises using least square models. Significant biases found in the data have been corrected in the data products, i.e. three merged data files containing measured, calculated and interpolated data for each of the three regions (i.e. Arctic Mediterranean Seas, Atlantic, and Southern Ocean). Here we report on the technical details of the quality control and on tools that have been developed and used during the project, including procedures for crossover analysis and least square models. Furthermore, an interactive website for uploading of results, plots, comments etc. was developed and was of critical importance for the success of the project, this is also described here. Article in Journal/Newspaper Arctic Southern Ocean Directory of Open Access Journals: DOAJ Articles Arctic Southern Ocean Earth System Science Data 2 1 35 49 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 T. Tanhua S. van Heuven R. M. Key A. Velo A. Olsen C. Schirnick Quality control procedures and methods of the CARINA database |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Data on the carbon and carbon relevant hydrographic and hydrochemical parameters from previously not publicly available cruises in the Arctic, Atlantic and Southern Ocean have been retrieved and merged to a new data base: CARINA (CARbon IN the Atlantic). These data have gone through rigorous quality control (QC) procedures to assure the highest possible quality and consistency. All CARINA data were subject to primary QC; a process in which data are studied in order to identify outliers and obvious errors. Additionally, secondary QC was performed for several of the measured parameters in the CARINA data base. Secondary QC is a process in which the data are objectively studied in order to quantify systematic differences in the reported values. This process involved crossover analysis, and as a second step the offsets derived from the crossover analysis were used to calculate corrections of the parameters measured on individual cruises using least square models. Significant biases found in the data have been corrected in the data products, i.e. three merged data files containing measured, calculated and interpolated data for each of the three regions (i.e. Arctic Mediterranean Seas, Atlantic, and Southern Ocean). Here we report on the technical details of the quality control and on tools that have been developed and used during the project, including procedures for crossover analysis and least square models. Furthermore, an interactive website for uploading of results, plots, comments etc. was developed and was of critical importance for the success of the project, this is also described here. |
format |
Article in Journal/Newspaper |
author |
T. Tanhua S. van Heuven R. M. Key A. Velo A. Olsen C. Schirnick |
author_facet |
T. Tanhua S. van Heuven R. M. Key A. Velo A. Olsen C. Schirnick |
author_sort |
T. Tanhua |
title |
Quality control procedures and methods of the CARINA database |
title_short |
Quality control procedures and methods of the CARINA database |
title_full |
Quality control procedures and methods of the CARINA database |
title_fullStr |
Quality control procedures and methods of the CARINA database |
title_full_unstemmed |
Quality control procedures and methods of the CARINA database |
title_sort |
quality control procedures and methods of the carina database |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/essd-2-35-2010 https://doaj.org/article/e5478d5f027546f58078380452fff624 |
geographic |
Arctic Southern Ocean |
geographic_facet |
Arctic Southern Ocean |
genre |
Arctic Southern Ocean |
genre_facet |
Arctic Southern Ocean |
op_source |
Earth System Science Data, Vol 2, Iss 1, Pp 35-49 (2010) |
op_relation |
http://www.earth-syst-sci-data.net/2/35/2010/essd-2-35-2010.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-2-35-2010 1866-3508 1866-3516 https://doaj.org/article/e5478d5f027546f58078380452fff624 |
op_doi |
https://doi.org/10.5194/essd-2-35-2010 |
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Earth System Science Data |
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2 |
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1 |
container_start_page |
35 |
op_container_end_page |
49 |
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1766332012134662144 |