Publication Date:
2021-12-22
Description:
SeaDataCloud Temperature and Salinity historical data collections covering the time period
1900-2018 were released in 2020 for each European marginal sea (Arctic Sea, Baltic Sea, Black
Sea, North Sea, North Atlantic Ocean, and Mediterranean Sea). A Quality Assurance Strategy
(QAS) was developed and continuously refined in order to improve the quality of the SeaDataNet
database content and derive the best data products through an iterative approach, which allows
the versioning of data products.
Regional Temperature and Salinity climatologies (see Figure 1) have been produced using
DIVAnd software (Barth et al. 2014) and integrating for the first time SeaDataNet data with
external data sources, such as CMEMS in situ TAC (Coriolis Ocean Dataset for Reanalysis) that
highly increased the temporal and spatial data coverage. Regional climatologies were designed
with a harmonized initial approach and all cover the time period after 1955, when marine data
start to be sufficient for mapping. All regional products are characterized by monthly fields over
the whole time span 1955-2018 and seasonal decadal fields on the same vertical standard levels
of the World Ocean Atlas (WOA18, Garcia et al., 2019).
A global SDC climatology has been created for the first time, which contains two different
monthly climatology for temperature and salinity, one covering the time period 1900-2017 and
the other with a different time coverage 2003-2017, computed from World Ocean Database
(WOD2018, Boyer et al., 2019). This choice has been made because spatial coverage of
SeaDataNet data at global scale is still too sparse.
A consistency analysis of all SDC climatologies versus the WOA has been performed to
demonstrate the differences and the value added of SDC products.
SDC team worked to optimize the data integration process with external sources, to better tune the DIVAnd parameters, the background field estimation and to improve the final consistency
analysis with the available multi-year products from WOA and CMEMS.
An overview of the methodology applied to compute the SDC climatologies and their
main characteristics will be presented together with the main results achieved by the SDC
products team. SDC products, data collections and climatologies, are available through a dedicated web
catalogue (https://www.seadatanet.org/Products/) together with their Digital Object Identifier
(DOI) and the relative Product Information Document (PIDoc), containing all specifications about
product’s generation, quality assessment, technical details and usability to facilitate users’ uptake.
Description:
Published
Description:
online
Description:
4A. Oceanografia e clima
Keywords:
Data products
;
03.02. Hydrology
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
Abstract
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