Abstract. Since the mid-1990s, a series of FES (finite element solution) global ocean tidal atlases has been produced and released with primary objective to provide altimetry missions de-aliasing correction at best possible accuracy. We describe underlying hydrodynamic data assimilation design accuracy assessments for latest FES2014 release (finalized in early 2016), especially purposes. The atlas shows extremely significant improvements compared standard FES2004 (intermediary) FES2012...

Abstract. Since the mid-1990’s, a series of Finite Element Solution (FES) global ocean tidal atlases has been produced and released with primary objective to provide altimetry missions de-aliasing correction at best possible accuracy. We describe underlying hydrodynamic data assimilation designs for last FES2014 release (finalized in early 2016), some accuracy assessments especially purposes. The atlas shows extremely significant improvements compared FES2004 (Lyard et al. 2006)...

Abstract Internal tides (ITs) in the Indonesian Seas were largely investigated and held responsible for strong water mass transformation intense surface cooling. Here, we evaluate ITs' impact on chlorophyll‐a through a coupled INDESO ocean‐biogeochemical model which is compared with situ data satellite products. The results show that explicit tides' inclusion within improves representation of nutrients. Previous studies highlighted at spring‐neap cycle cool by 0.2°C. Our current increases...

Abstract. Intense equatorward western boundary currents transit the Solomon Sea, where active mesoscale structures exist with energetic internal tides. In this marginal sea, mixing induced by these features can play a role in observed water mass transformation. The objective of paper is to document M2 tides Sea and their impacts on circulation masses, based two regional simulations without Since under influence ENSO, characteristics are also analyzed for contrasted conditions: January–March...

Abstract. Consequences of tidal dynamics on hydro-sedimentary processes are a recurrent issue in estuarine and coastal studies, accurate solutions prerequisite for modeling sediment transport, especially macro-tidal regions. The motivation the study presented this publication is to implement optimize model configuration that will satisfy frame larger objective order fate from Red River Delta Gulf Tonkin numerical hydrodynamical–sediment coupled model. Therefore, we focus main constituents...

Abstract. The impact of internal and barotropic tides on the vertical horizontal temperature structure off Amazon River was investigated during two highly contrasted seasons (AMJ: April–May–June; ASO: August–September–October) over a 3-year period from 2013 to 2015. Twin regional simulations, with without tides, were used highlight general effect tides. findings reveal that have cooling ocean surface (∼ 0.3 ∘C) above thermocline 1.2 ∘C), while warming it up below ∘C). heat budget analysis...

Time series of sea level heights have been collected at different stations along the Cameroon coast. The dataset covers a period ranging from 2007 to 2012. Tide data measured by float type recorders digitalized and quality-controlled with tools developed Laboratoire d'Etudes Géophysique et Océanographie Spatiale (LEGOS). Short gaps in interpolated while large were not. constituents retrieved through harmonic analysis using 123 waves having long ones eighth-diurnal ones. reconstructed signal...

Abstract A real‐time ionospheric mapping system is tested to investigate its ability compensate for the delay in single‐frequency Global Positioning System (GPS) time transfer over Europe. This technique compared with two other systems: one that does not incorporate any correction and uses broadcast Klobuchar model. dual‐frequency also shown as a benchmark. period March 2003, during solar maximum, has been used display results when delays are large variable. Data from European GPS monitoring...

Internal tides (ITs) in the Indonesian seas were largely investigated and hotspots of intensified mixing identified straits regional models observations. Both them indicate strong up to 10⁻⁴cm/s even close surface show that at spring-neap cycle cool by 0.2°C water ITs’ generation sites.These findings supported idea surfaced capable providing cold nutrient-rich favorable for whole ecosystem. However, it has never been assessed through an ad-hoc study. Our aim is provide a quantification ITs...

The goal of the Surface Water and Ocean Topography (SWOT) mission, a future wide-swath radar altimeter, is to measure elevations ocean continental water surfaces with unprecedented precision. A simulator SWOT high-rate (HR) interferometric SAR images has been developed provide SWOT-like data scientists as tool develop test HR ground processing algorithms. In this letter, we evaluate errors extracted levels in different hydrodynamic topographic contexts Seine estuary based on simulated data....

Tides and internal tides (IT) in the ocean can significantly affect local to regional temperature even sea surface (SST), via processes such as vertical mixing, advection transport of water masses. Offshore Amazon River, IT have already been detected studied; however, their impact on temperature, SST associated are not known this region. In work, we use high resolution (1/36°) numerical simulations with without from an circulation model (NEMO) which explicitly resolves (IT), assess...

Abstract. Tidal dynamics consequences on hydro-sedimentary processes are a recurrent issue in estuarine and coastal studies accurate tidal solutions prerequisite for modelling sediment transport, especially macro-tidal regions. The motivation the study presented this publication is to implement optimize model configuration that will satisfy frame of larger objective fate Red River delta Gulf Tonkin from numerical hydrodynamical-sediment coupled model. Therefore we focus main constituents...

    Thanks to its current accuracy and maturity, altimetry is considered as a fully operational observing system dedicated various applications such climate studies. Altimeter measurements are corrected from several geophysical parameters in order isolate the oceanic variability tide correction one of most critical. The tidal models has been much improved for last 25 years leading centimetric open ocean. release global model, referenced FES2014b was distributed...

Abstract. Tides and internal tides (IT) in the ocean can significantly affect local to regional temperature, including sea surface temperature (SST), via physical processes such as diffusion (vertical mixing) advection horizontal) of water masses. Offshore Amazon River, strong IT have been detected by satellite observations well modelled ; however, their impact on SST identification associated not studied so far. In this work, we use high resolution (1/36°) numerical simulations with without...

Summary Until now, the polar motion resonance (PMR) complex frequency has been determined in seasonal and retrograde diurnal band of motion. In this study, is studied prograde band, where mainly composed periodic terms caused by oceanic tide. The parameters (period quality factor) are encompassed transfer function between generating tidal potential motion, can be estimated accordingly. To aim, we gather three published sets from Global Navigation Satellite System (GNSS) Very Long Baseline...