The effect of interpolation methods in temperature and salinity trends in the Western Mediterranean

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2012 (EL)
The effect of interpolation methods in temperature and salinity trends in the Western Mediterranean (EN)

VARGAS-YANEZ, M.
MALLARD, E.
MOYA, F.
RIXEN, M.
ZUNINO, P.
GARCIA-MARTINEZ, M.C.

Temperature and salinity data in the historical record are scarce and unevenly distributed in space and time and the estimation of linear trends is sensitive to different factors. In the case of the Western Mediterranean, previous works have studied the sensitivity of these trends to the use of bathythermograph data, the averaging methods or the way in which gaps in time series are dealt with. In this work, a new factor is analysed: the effect of data interpolation. Temperature and salinity time series are generated averaging existing data over certain geographical areas and also by means of interpolation. Linear trends from both types of time series are compared. There are some differences between both estimations for some layers and geographical areas, while in other cases the results are consistent. Those results which do not depend on the use of interpolated or non-interpolated data, neither are influenced by data analysis methods can be considered as robust ones. Those results influenced by the interpolation process or the factors analysed in previous sensitivity tests are not considered as robust results. (EN)

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ) (EL)
Hellenic Centre for Marine Research (HCMR) (EN)

Mediterranean Marine Science

2012-04-09


Hellenic Centre for Marine Research (EN)

1791-6763
1108-393X
Mediterranean Marine Science; Vol 13, No 1 (2012); 118-125 (EL)
Mediterranean Marine Science; Vol 13, No 1 (2012); 118-125 (EN)



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