气候变化领域集成服务门户(CCPortal): High-Resolution Numerical Modeling of Barotropic Global Ocean Tides for Satellite Gravimetry

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DOI	10.1029/2020JC017097
	High-Resolution Numerical Modeling of Barotropic Global Ocean Tides for Satellite Gravimetry
	Sulzbach R.; Dobslaw H.; Thomas M.
发表日期	2021
ISSN	21699275
卷号	126 期号:5
英文摘要	The recently upgraded barotropic tidal model TiME is employed to study the influence of fundamental tidal processes, the chosen model resolution, and the bathymetric map on the achievable model accuracy, exemplary for the M2 tide. Additionally, the newly introduced pole-rotation scheme allows to estimate the model’s inherent precision (open ocean rms: 0.90 cm) and enables studies of the Arctic domain without numerical deviations originating from pole cap handling. We find that the smallest open ocean rms with respect to the FES14-atlas (3.39 cm) is obtained when tidal dissipation is carried out to similar parts by quadratic bottom friction, wave drag, and parametrized eddy-viscosity. This setting proves versatile to obtaining high accuracy values for a diverse ensemble of additional partial tides. Using the preferred model settings, we show that for certain minor tides it is possible to obtain solutions that are more accurate than results derived with admittance assumptions from data-constrained tidal atlases. As linear admittance derived minor tides are routinely used for de-aliasing of satellite gravimetric data, this opens the potential for improving gravity field products by employing the solutions from TiME. © 2021. The Authors.
英文关键词	M2-tide; minor tides; pole-rotation; self-attraction and loading; tide-generating potential; topographic wavedrag
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186347
作者单位	Deutsches Geoforschungszentrum (GFZ), Potsdam, Germany; Institut für Meteorologie, Freie Universität Berlin (FUB), Berlin, Germany
推荐引用方式 GB/T 7714	Sulzbach R.,Dobslaw H.,Thomas M.. High-Resolution Numerical Modeling of Barotropic Global Ocean Tides for Satellite Gravimetry[J],2021,126(5).
APA	Sulzbach R.,Dobslaw H.,&Thomas M..(2021).High-Resolution Numerical Modeling of Barotropic Global Ocean Tides for Satellite Gravimetry.Journal of Geophysical Research: Oceans,126(5).
MLA	Sulzbach R.,et al."High-Resolution Numerical Modeling of Barotropic Global Ocean Tides for Satellite Gravimetry".Journal of Geophysical Research: Oceans 126.5(2021).