Assessing Eddying (1/12°) Ocean Reanalysis GLORYS12 Using the 14?yr Instrumental Record From 59.5°N Section in the Atlantic
نویسندگان
چکیده
The eddy-resolving (1/12°) global ocean reanalysis GLORYS12 is assessed against 14 years (2002–2015) of independent hydrographic observations collected at 59.5°N in the North Atlantic. Two multi-observations statistical analyses, ISAS-15 and ARMOR-3D, an eddy-permitting (1/4°) reanalysis, GLORYS025, also contribute to this comparison. mean thermohaline structure along section revealed by well-reproduced GLORYS12, except for overflow waters. A good agreement with found linear trends over whole period, exhibiting a dipole-like pattern cooling/freshening main thermocline warming/salinization below. However, localized discrepancies suggest need improvement system (especially overflows representation consistency between forcing data assimilation system) deep observational array. reliably represents heat content upper 700-m layer but shows significant differences 700 2,000 m. meridional volume transports across are compared when ADCP were available. does not reproduce variability observed western boundary current agrees well other parts section. reproduces major mesoscale eddy features that transport provides large-scale context their location. analysis time correlation all measurement points demonstrated most accurate among analyzed datasets used study represent explain characteristics
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ژورنال
عنوان ژورنال: Journal Of Geophysical Research: Oceans
سال: 2021
ISSN: ['2169-9275', '2169-9291']
DOI: https://doi.org/10.1029/2020jc016317