Article (Scientific journals)
A New Global Ocean Climatology
Shahzadi, Kanwal; Pinardi, Nadia; Barth, Alexander et al.
2021In Frontiers in Marine Science, 9, p. 363
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Keywords :
Climatology; Oceanography; Spatial interpolation; DIVAnd; SeaDataCloud
Abstract :
[en] A new global ocean temperature and salinity climatology is proposed for two time periods: a long time mean using multiple sensor data for the 1900–2017 period and a shorter time mean using only profiling float data for the 2003–2017 period. We use the historical database of World Ocean Database 2018. The estimation approach is novel as an additional quality control procedure is implemented, along with a new mapping algorithm based on Data Interpolating Variational Analysis. The new procedure, in addition to the traditional quality control approach, resulted in low sensitivity in terms of the first guess field choice. The roughness index and the root mean square of residuals are new indices applied to the selection of the free mapping parameters along with sensitivity experiments. Overall, the new estimates were consistent with previous climatologies, but several differences were found. The cause of these discrepancies is difficult to identify due to several differences in the procedures. To minimise these uncertainties, a multi-model ensemble mean is proposed as the least uncertain estimate of the global ocean temperature and salinity climatology.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Earth sciences & physical geography
Author, co-author :
Shahzadi, Kanwal
Pinardi, Nadia
Barth, Alexander  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Troupin, Charles  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER)
Lyubartsev, Vladyslav
Simoncelli, Simona
Language :
English
Title :
A New Global Ocean Climatology
Publication date :
31 August 2021
Journal title :
Frontiers in Marine Science
eISSN :
2296-7745
Publisher :
Frontiers Media S.A., Switzerland
Volume :
9
Pages :
363
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 730960 - SeaDataCloud - SeaDataCloud - Further developing the pan-European infrastructure for marine and ocean data management
Funders :
CE - Commission Européenne [BE]
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since 05 September 2021

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