Year: 2012
Type: article
Abstract: Ocean tides, resulting mainly from the gravitational attractions of the Moon and the Sun, represent 80% of the ocean surface topography variability with a practical importance for commerce and science over hundreds of years.Tides have strong influence on modeling of coastal or continental shelf circulations, play a significant role in climate due to its complex interactions between ocean, atmosphere, and sea ice, dissipate their energy in the ocean and solid Earth, and decelerate the Moon's mean motion.Oceanographic studies and applications, including coastal or continental shelf ocean circulations, also require observations to be 'de-tided' using ocean tidal forward prediction models before geophysical or oceanographic interpretation, particularly over coastal regions.Advances in satellite radar altimetry technology enabled a globally sampled record of sea surface height (SSH) and its changes over the past two decades, particularly after the launch of TOPEX/POSEIDON satellite.This geophysical record enables numerous scientific studies or discoveries, including improved global ocean tide modeling.Several contemporary ocean tide models have been determined either through the assimilation of satellite altimetry and coastal tide gauge data, often referred to as 'assimilation models' (e.g.FES2004, NAO.99b and TPXO6.2/7.1/7.2), or via the use of altimetry observations in an 'empirical modeling' approach to solve for tidal constituents based on a-priori tide models, including assimilated models (e.g.DTU10,The observed sea surface height and its anomaly With the introduction of the above corrections to the altimeter range measurements, one can rewrite equation (3.1) in a more complete form as
Author: Hok Sum Fok
Institution: The Ohio State University
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: green
OpenAlex ID: W2246327100