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Lagoon islets as indicators of recent environmental changes in the South Pacific - the New Caledonian example
The question of the impacts of climate change and sea level rise on small islands is currently much discussed. The many thousands of Pacific islands in their different contexts (geodynamic, climatic, etc.) and the insufficient data available explain why it is difficult to clearly discern the specific role of climate change in the recent evolution of these islands. To address this question, we investigated the recent changes affecting 21 islets in New Caledonia's lagoon.
M. Garcin, M. Vendé-Leclerc, P. Maurizot, G. Le Cozannet, B. Robineau, A. Nicolae-Lerma
Continental Shelf Research, volume 122

Temporal fluctuations in the trophic role of large benthic sulfur bacteria in mangrove sediment
Filamentous sulfur bacteria of the genus Beggiatoa form large mats covering the sediment in the shallow waters of a Guadeloupean mangrove (French West Indies). The abundance of these bacteria varies over the year and their trophic role may, therefore, also vary. We investigated this variation by conducting a survey examining the stable isotopic compositions of four grazers and four food sources during nine sampling sessions in three different periods of the year.
P.-Y. Pascal, O. Gros, H. T. S. Bischker
Food Webs, volume 7

Spécifications générales d’une station de surveillance marégraphique
Une station marégraphique ou station de surveillance du niveau de la mer doit permettre de suivre, en continu et sur une échelle de temps de plusieurs années, les variations du niveau de la mer, à différentes fréquences.
V. Donato
Shom

Hail observations and hailstorm characteristics in Europe: a review
Severe thunderstorms associated with large hail are among the most important perils in several European regions. Due to the local-scale extent of hail-affected areas and a lack of appropriate observing systems in most regions, hailstorms are not captured accurately and comprehensively, which makes statistical analysis of their frequency or climatology more difficult. Various studies have been conducted so far to describe and analyze the frequency of hailstorms or related impacts.
H.J. Punge, M. Kunz
Atmospheric Research, volumes 176-177

Coastal planning should be based on proven sea level data
There are two related measures of sea level, the absolute sea level, which is the increase in the sea level in an absolute reference frame, and relative sea level, which is the increase in sea level recorded by tide gauges. The first measure is a rather abstract computation, far from being reliable, and is preferred by activists and politicians for no scientific reason. For local and global problems it is better to use local tide gauge data. Proper coastal management should be based on proved measurements of sea level.
A. Parker, C. D. Ollier
Ocean & Coastal Management, volume 124

Hyper-resolution mapping of regional storm surge and tide flooding: comparison of static and dynamic models
Storm tide (combination of storm surge and the astronomical tide) flooding is a natural hazard with significant global social and economic consequences. For this reason, government agencies and stakeholders need storm tide flood maps to determine population and infrastructure at risk to present and future levels of inundation. Computer models of varying complexity are able to produce regional-scale storm tide flood maps and current model types are either static or dynamic in their implementation.
J. A. Ramirez, M. Lichter, T. J. Coulthard, C. Skinner
Natural Hazards

The key role of vertical land motions in coastal sea level variations: A global synthesis of multisatellite altimetry, tide gauge data and GPS measurements
This study aims to quantify the vertical motions driving the decadal coastline mobility and their uncertainty at global scale. Multisatellite altimetry is combined with tide gauges and Global Positioning System (GPS) observations to evaluate the marine and crustal components of relative sea level variations. Vertical land motions and sea level variations are estimated simultaneously over the past 20 years for a network of 886 ground stations, with accuracies better than 1.7 mm/yr.
J. Pfeffer, P. Allemand
Earth and Planetary Science Letters, volume 439

Estimation of insurance-related losses resulting from coastal flooding in France
A model has been developed in order to estimate insurance-related losses caused by coastal flooding in France. The deterministic part of the model aims at identifying the potentially flood-impacted sectors and the subsequent insured losses a few days after the occurrence of a storm surge event on any part of the French coast. This deterministic component is a combination of three models: a hazard model, a vulnerability model, and a damage model.
J. P. Naulin, D. Moncoulon, S. Le Roy, R. Pedreros, D. Idier, C. Oliveros
NHESS, volume 16

Formation and structure of the turbidity maximum in the macrotidal Charente estuary (France): Influence of fluvial and tidal forcing
Understanding estuarine sediment dynamics and particularly turbidity maximum dynamics is crucial for the management of these coastal systems. Various processes impact the formation, movement and structure of the turbidity maximum. Several studies have shown that tidal asymmetry and density gradients are responsible for the presence of this suspended sedimentary mass.
F. Toublanc, I. Brenon, T. Coulombier
Estuarine, Coastal and Shelf Science, volume 169
