A toolbox for secondary quality control on ocean chemistry and hydrographic data.

Lauvset, Siv K. and Tanhua, Toste (2015) A toolbox for secondary quality control on ocean chemistry and hydrographic data. Open Access Limnology and Oceanography: Methods, 13 (11). pp. 601-608. DOI 10.1002/lom3.10050.

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Abstract

High quality, reference measurements of chemical and physical properties of seawater are of great importance for a wide research community, including the need to validate models and attempts to quantify spatial and temporal variability. Whereas data precision has been improved by technological advances, the data accuracy has improved mainly by the use of certified reference materials (CRMs). However, since CRMs are not available for all variables, and use of CRMs does not guarantee bias-free data, we here present a recently developed Matlab toolbox for performing so-called secondary quality control on oceanographic data by the use of crossover analysis. This method and how it has been implemented in this toolbox is described in detail. This toolbox is developed mainly for use by sea-going scientists as a tool for quickly assessing possible bias in the measurements that can-hopefully-be remedied during the expedition, but also for possible post-cruise adjustment of data to be consistent with previous measurements in the region. The toolbox, and reference data, can be downloaded from the Carbon Dioxide Information Analysis Center (CDIAC): http://cdiac.ornl.gov/ftp/oceans/2nd_QC_Tool_V2/.

Document Type: Article
Funder compliance: info:eu-repo/grantAgreement/EC/FP7/264879
Additional Information: WOS:000367227000001
Keywords: INDIAN-OCEAN, OCEAN CHEMISTRY, HYDROGRAPHIC DATA
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1002/lom3.10050
ISSN: 1541-5856
Related URLs:
Projects: GLODAP, CARBOCHANGE, DECApH, Future Ocean
Date Deposited: 01 Sep 2015 08:02
Last Modified: 17 Sep 2018 13:24
URI: http://oceanrep.geomar.de/id/eprint/29480

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