Response of the Mediterranean mean sea level to atmospheric pressure forcing

Traon, Pierre-Yves Le; Gauzelin, Philippe

doi:10.1029/96jc02777

Cited by 76 publications

(51 citation statements)

References 15 publications

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“…All standard geophysical and environmental corrections including ionospheric, dry and wet tropospheric corrections, solid Earth and ocean tides, ocean tide loading, pole tide, electromagnetic bias, instrumental corrections, orbit error reduction and inverse barometer have been applied by AVISO processing algorithms (AVISO, 1996). The inverse barometer correction has arguable validity for semi-enclosed seas because the sea level response is noticeably influenced by topographic constrictions of the flow in the straits (Le Traon and Gauzelin, 1997). However, these authors also show that departure from the isostatic response is significant at periods shorter than 200-300 days.…”

Section: Methodsmentioning

confidence: 96%

Steric and mass-induced Mediterranean sea level trends from 14 years of altimetry data

Criado-Aldeanueva

Vera

García‐Lafuente

2008

Global and Planetary Change

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Section: Methodsmentioning

confidence: 96%

Steric and mass-induced Mediterranean sea level trends from 14 years of altimetry data

Criado-Aldeanueva

Vera

García‐Lafuente

2008

Global and Planetary Change

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“…A significant contribution of the atmospheric pressure on the sea-level seasonal and interannual variability has been also documented (Gomis et al, 2006Marcos and Tsimplis, 2007). It has been also observed that a significant departure from a standard IB effect can occur at frequencies higher than 30 days −1 (Le Traon and Gauzelin, 1997). Departures from the IB response may be due to either local winds (Palumbo and Mazzarella, 1982) or the restrictions at straits on water transport between basins (Garret, 1983;Garrett and Majaess, 1984).…”

Section: Introductionmentioning

confidence: 99%

“…However, oceanic responses to atmospheric pressure forcing can depart from a pure inverse barometer effect under specific circumstances, especially in the presence of geometrical constraints (i.e. straits or channels) (Garrett and Majaess, 1984) as in the Mediterranean Sea (Le Traon and Gauzelin, 1997;Pasaric et al, 2000). The validity of this IB assumption depends also on the timescales and space scales considered: the ocean response to atmospheric pressure generally differs from the IB for periods less than 3 days and at high latitudes.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of the Mediterranean sea level to atmospheric pressure and free surface elevation numerical formulation in NEMO

et al. 2014

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Abstract. The sensitivity of the dynamics of the Mediterranean Sea to atmospheric pressure and free surface elevation formulation using NEMO (Nucleus for European Modelling of the Ocean) was evaluated. Four different experiments were carried out in the Mediterranean Sea using filtered or explicit free surface numerical schemes and accounting for the effect of atmospheric pressure in addition to wind and buoyancy fluxes. Model results were evaluated by coherency and power spectrum analysis with tide gauge data. We found that atmospheric pressure plays an important role for periods shorter than 100 days. The free surface formulation is important to obtain the correct ocean response for periods shorter than 30 days. At frequencies higher than 15 days −1 the Mediterranean basin's response to atmospheric pressure was not coherent and the performance of the model strongly depended on the specific area considered. A large-amplitude seasonal oscillation observed in the experiments using a filtered free surface was not evident in the corresponding explicit free surface formulation case, which was due to a phase shift between mass fluxes in the Gibraltar Strait and at the surface. The configuration with time splitting and atmospheric pressure always performed best; the differences were enhanced at very high frequencies.

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“…The IB response of the ocean to atmospheric pressure changes is originally corrected in altimetry, but not in TG. As far as long-term variations are concerned, the IB effect is not important (LE TRAON and GAUZELIN, 1997). However, we decide to eliminate the IB correction in altimetry for consistency with the TG data.…”

Section: Tide Gauge Datamentioning

confidence: 99%

Combination of Multisatellite Altimetry and Tide Gauge Data for Determining Vertical Crustal Movements along Northern Mediterranean Coast

García

Vigo

García-García

et al. 2011

Pure Appl. Geophys.

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Sea level variations (SLV) can be measured by tide gauges (TG) at the coast and by altimeters onboard satellites. The former measures the SLV relative to the coast, whereas altimetry provides the SLV with respect to a geocentric reference frame. The differences between SLV measurements from these two techniques can be used as an indirect assessment of vertical crustal motions at the TG sites. In this study, we exploit this idea, analyzing differences between sea level signals as measured by altimetric missions (TOPEX/Poseidon and Jason-1) and by 47 TG stations along northern Mediterranean coasts for the period 1993-2007. This allows us to estimate the vertical land motion along these coasts at the TG sites in this time window. For those sites where the TG is co-located or has a nearby global positioning system (GPS) station, these estimates are compared with the vertical rates derived from GPS measurements. Our results on vertical ground motion along the Mediterranean coast provide a useful source of data for studying, contrasting, and constraining tectonic models for the region.

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Response of the Mediterranean mean sea level to atmospheric pressure forcing

Cited by 76 publications

References 15 publications

Steric and mass-induced Mediterranean sea level trends from 14 years of altimetry data

Steric and mass-induced Mediterranean sea level trends from 14 years of altimetry data

Sensitivity of the Mediterranean sea level to atmospheric pressure and free surface elevation numerical formulation in NEMO

Combination of Multisatellite Altimetry and Tide Gauge Data for Determining Vertical Crustal Movements along Northern Mediterranean Coast

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