Bog ; Coastal dynamics ; Coastal environment ; Foraminifera ; Global change ; Indicator ; Quaternary ; Sea level
Changement global ; Dynamique littorale ; Foraminifère ; Indicateur ; Littoral ; Marais ; Niveau marin ; Quaternaire
This report examines recent developments in relation to present (and anticipated future) sea level, Quaternary sea-level fluctuations, the response of coastal landforms to sea-levelchange and the use of biological indicators of sea-levelchange.
Bibliographie ; Changement global ; Effet de serre ; Eustatisme ; Impact ; Ligne de rivage ; Littoral ; Niveau marin ; Quaternaire
This report will concentrate on aspects of Quaternary sea-levelchange, summaries of trends in sea-level over recent decades from tide gauges, and predictions of future sea-levelchange and the anticipated responses of the coast.
Changements du géoïde ; Concept ; Dynamique océanique ; Eustatisme ; Généralités sur la géographie ; Monde ; Mouvements verticaux ; Niveau marin ; Océan ; Océan mondial ; PICG 200
Eustasy can no longer be defined as world wide simultaneous changes in sea level, but must be redefined as ocean levelchanges or any absolute sea levelchanges regardless of causation and including both the vertical and horizontal changes
of the geoid surface as well as changes of the dynamic sea surface topography. In the field, only relative sea levelchanges can be observed (Author).
Possible effects of recent changes in sea level on the biota of a Caribbean reef flat and predicted effects of rising sea levels in Proceedings. Volume 3. Symposia and seminars.
Prediction of the changes in biota that would result on a semi-intertidal reef flat of Panama from a slight rise in sea level.
Holocene sea-levelchanges and coastal processes on the south coast of Ireland: corals and the problems of sea-level methodology in temperate waters in Proceedings. Volume 3. Symposia and seminars.
A discussion on indicators of coastline and sea-levelchanges in Ireland.
Forecast ; Global change ; Greenhouse effect ; New Zealand ; Sea level
Changement global ; Effet de serre ; Niveau marin ; Nouvelle-Zélande ; Prévision
This paper concerns a few of many important aspects of the treatment given to sea-level rise postulated to attend global warming under the greenhouse warming group of hypotheses. Particular atteention is paid to the last 5 years of this debate.
Should Quaternary sea-levelchanges be used to correct glacier ELAs, vegetation belt altitudes and sea level temperatures for inferring climate changes ?
Changes in the altitudes of glacier snowlines (ELAs) and the altitudes of montane vegetation belts (VBAs) measure Quaternary climatic change. Here, the A. shows that a recently proposed correction for these and other similar approaches is faulty
Sea level is not level : the case for a new approach to predicting UK sea-level rise
Climatic change ; Coastal environment ; Forecast ; Geophysics ; Global change ; Methodology ; Model ; Sea level ; United Kingdom
Changement climatique ; Changement global ; Géophysique ; Littoral ; Modèle ; Méthodologie ; Niveau marin ; Prévision ; Royaume-Uni
The AA. argue that the global (Intergovernmental Panel on Climate Change) IPCC sea-level values should be replaced by a suite of regional values, to take into account known processes that cause regional changes in sea-surface topography
. Quantification of these processes, which include gravitational adjustments of the ocean surface and nearshore ocean-density changes, requires the use of numerical ocean and geophysical models. These 2 additional mechanisms are not included in IPCC assessments
. A combined modelling/geological approach will produce more robust regional sea-level predictions for the UK.
change over the Late Quaternary, and the success or otherwise in trying to monitor ongoing global sea-levelchange.
This report cannot attempt to review all that has been written on sea level in the last one or two years. Instead, it examines the extent to which it has been possible to reconstruct or explain the past pattern of truly global (eustatic) sea-level
Changement climatique ; Climat ; Eau de fonte ; Holocène ; Impact ; Interglaciaire ; Niveau marin ; Réchauffement climatique
Niveaux marins élevés : niveaux marins interglaciaires, changements du niveau terrestre. Changements de la glace et des océans : impulsions d'eau de fonte, élévation du niveau marin de l'Holocène moyen au supérieur, changements instrumentaux.
Sea levelchange: environmental and socio-economic impacts
Economic impact ; Fishery;Fishing ; Global change ; Impact study ; Ocean ; Sea level
Changement global ; Etude d'impact ; Impact économique ; Niveau marin ; Océan ; Pêche
Recent calculations that a rapid sea level rise is imminent, has prompted concerned efforts at meeting the socio-economic impacts that are likely to occur. These impacts, rather than being localized and temporary as has been true in the recent past
Analytical predictions of beach profile change in response to a sea-level rise in Geomorphology of changing coastlines.
Recent studies predict a sea-level rise of the order of 0.5 to 3.5 m by the year 2100. Beach profile translation and coastal erosion will, in most cases, accompany the rising level of the sea. Calculations for estimating potential erosion on a sandy
This report briefly reviews the IPCC Fourth Assessment Report (AR4) sea-level summary and projections for future change. It then considers the development of high-resolution records of relative sea-level (RSL) change which have the potential
Coastal erosion ; Coastal management ; Environmental management ; Global change ; Impact ; Model ; Sea level
Aménagement du littoral ; Changement global ; Erosion littorale ; Gestion de l'environnement ; Impact ; Modèle ; Niveau marin
This report focuses on assessments of the impact of sea-level rise on contemporary geomorphic systems (sea-level projections, coastal system response) and some of the socioeconomic aspects of these impacts.
Late Holocene sea-levelchange on Rota and Guam, Mariana Islands, and its constraint on geophysical predictions
C 14 dating ; Geophysics ; Holocene ; Micronesia ; Model ; Quaternary ; Reef ; Sea level ; Vertical movement
Holocene emergent reefs and notches are well distributed on Rota and Guam. Relative sea-levelchanges at these islands are reconstructed based on geomorphological observations and borings on present and emergent reefs, together with 54 radiocarbon
dates. Reconstructed late Holocene sea-levelchange in the Mariana Islands provides constraints on geophysical models of sea-level variations.
Late Holocene sea-levelchanges seen from prehistoric settlements
Radiocarbon dates from prehistoric human settlements in Varanger, Finnmark, North Norway, are used to examine Holocene relative sea-levelchanges. (JH).
Changement global ; Circulation océanique ; Effet de serre ; Eustatisme ; Holocène ; Interaction océan-atmosphère ; Littoral ; Modèle ; Niveau marin
The level of the ocean changes with time by a number of different causes. The rates and amplitudes of these changes differ. During the last 5000 years, the eustatic changes have been dominated by the redistribution of water masses due to changes
in the oceanic circulation systems. The sea-levelchanges to be expected in the next century are estimated on the basis of past and present sea-levelchanges and their driving forces; a possible future sea level rise in the next century will, at the most