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| Registros recuperados: 59 | |
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| Gao, Zhigang; Han, Shuzong; Liu, Kexiu; Zhrng, Yunxia; Yu, Huaming. |
| In this paper, ECOMSED (Estuarine Coastal Ocean Model with sediment transport) model is employed to simulate storm surge process caused by typhoon passing across East China Sea in nearly years. Capability of ECOMSED to simulate storm surge is validated by comparing model result with observed data. Sensitivity experiments are designed to study the influence of sea level rise on typhoon storm surge. Numerical experiment shows that influence of mean sea level rise on typhoon storm surge is non-uniform spatially and changes as typhoon process differs. Maybe fixed boundary method would weaken the influence of mean sea level rise on storm surge, and free boundary method is suggested for the succeeding study. |
| Tipo: Journal Contribution |
Palavras-chave: Simulation; Sea level. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/5878 |
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| Abuodha, P.A.W.. |
| The coastal setting and the geology control the geomorphology on the Kenyan coast. The evolution of the physical environment has also been influenced by climate, wave and tidal regime, sedimentation and river discharge. The shore terraces of Kenyan coast correspond to eustatic movements of sea level. There seems to be evidence of a high water level during the late Pleistocene. For the lower terraces a Holocene age is suggested. During the Pleistocene, sea level fluctuations associated with glacial / interglacial phases left well developed raised platforms and beaches. The Kenyan coast has a strong tectonic influence and it is difficult to describe the coast in terms of emergence or submergence only. It can therefore be concluded that the geomorphology of... |
| Tipo: Report |
Palavras-chave: Geomorphology; Sea level. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/407 |
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| Uaissone, A.J.R.. |
| The work refers to variations of the mean sea level (MSL) in Piraquara (RJ) due to mesoscale atmospheric disturbances in the South and Southeast Brazil oceanic area. The sea level data were submitted to a verification and consistence process, and then they were validated with the help of predicted levels by the software Pacmaré (FRANCO, 1992). For the pressure and wind velocities, the NCEP re-analysis data was used. Thompson's low pass optimizable filter was used to remove high frequencies in the data. Differently to the habitual use of quarters of year in climatologic studies, in this work partitions of the year centered in solstice and equinox were considered. About the results of the statistical analysis in the time domain, it was seen that MSL... |
| Tipo: Theses and Dissertations |
Palavras-chave: Sea level; Atmospheric disturbances; Dynamics. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/910 |
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| Huang, Deyin; Shi, Qi; Zhang, Yechun. |
| According to the field survey and 14C dating at Luhuitou, southern Hainan Island, a subsiding area, the authors conclude the high sea level history recorded by coral reef in the Holocene. At least 4 sea level high-stands can be identified from the distribution of coral reef ages: 7300 - 6000 cal.aBP, 4800 - 4700 cal.aBP, 4300 - 4200 cal.aBP and 3100 - 2900 cal.aBP. The highest sea level occurred around 7300 - 6700 cal.aBP, and biological-morphological zones took their shape during the stage. The later coral reefs developed in ponds, depressions, and developed outwards on both sides of Luhuitou peninsula. The modern coral reefs are developing in out reef flat and reef-front slope. Moreover, the time of high sea levels in the northern South China Sea... |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Sea level; Holocene. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/5863 |
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| 2. The Nature of Sea Level Variations 2.1 Introduction 2.2 Surface Waves 2.3 Seiches 2.4 Tides 2.4.1 Tidal Analysis 2.5 Storm surges 2.6 Tsunamis 2.7 Mean Sea Level and Trends 2.8 Estimation of Extreme Sea Levels 2.8.1 Introduction 2.8.2 The Annual Maximum Method (AMM) 2.8.3 The Joint Probabilities Method (JPM) 2.8.4 The Revised Joint Probabilities Method (RJPM) 2.8.5 The Exceedance Probabilities Method 2.8.6 Spatial Estimation of Extremes 3. Instruments for the Measurement of Sea Level 3.1 Introduction 3.1.1 The Choice of a Tide Gauge Site 3.2 The Stilling Well 3.2.1 Datum Switches 3.3. Pressure Gauges 3.3.1 Pneumatic Bubbler Gauges 3.3.2 Pressure Sensor Gauges 3.3.3 The Datum of a Pressure System 3.3.4 Multiple Pressure Transducer... |
| Tipo: Report |
Palavras-chave: Sea level measurement; Measurement; Sea level. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4459 |
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| Grundling, P.L.. |
| Peatlands act as information traps; archives reflecting changes in climate and environment, through pollen assemblages, sediment facies, plant fibre and C14 dating. The investigation of Maputaland peatlands presents an ideal opportunity to understand these changes during the Late Pleistocene and Holocene. The Maputaland peatlands in South Africa could be geographically divided into two distribution areas based on age: The Holocene age peatlands northwards of the Mkuze River inflow into Lake St. Lucia and the Late Pleistocene age peatlands south of this inflow. The grouping of peat thicknesses versus peat ages in a scatter diagram indicates distribution deviations from the ideal accumulation line. These might represent periods of low or negative growth and... |
| Tipo: Report |
Palavras-chave: Peat; Sea level; Peatlands; Http://aims.fao.org/aos/agrovoc/c_13929. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/703 |
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| Zambrano, E.. |
| Se revisan las características generales de los eventos El Niño en el Pacífico Tropical y la manera como se manifiestan frente a las costas del Ecuador. Se analiza la elevación del nivel del mar en la estación de La Libertad y se compara con el contenido de calor en el Pacífico central. Utilizando la información de las boyas del programa TAO se analiza la propagación de temperatura y altura dinámica desde el Pacífico ecuatorial occidental hasta el borde oriental. De igual manera se analiza el arribo de ondas ecuatoriales al borde oriental del Pacífico y su incidencia en el nivel medio del mar. El Niño 2006-07 concluyó rápidamente y de intensidad débil; puede considerarse como en evento de corta duración que presentó las características generales de otros... |
| Tipo: Journal Contribution |
Palavras-chave: El Nino phenomena; Sea level; Buoys; Rain; Edge waves; Equatorial waves; Temperature; Sea level; Rain; Temperature. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/2337 |
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| Mohamed, T.A.A.; Mohamed, A.M.. |
| Three shallow reef sites were investigated during four seasons Autumn, 2003, Winter, Spring and Summer, 2004) off the Marine Biological Station at Hurghada, Red Sea, Egypt. Thirty-eight scleractinian coral species were recorded at the studied sites. Generally, Twenty-six species were affected by more than one factor (such as high temperature, solar radiation, sedimentation and algae), while the last twelve species remained healthy. The affected species (26 species) were divided into the following: five species were affected by combination of high temperature and direct exposure to solar radiation during the neap tide, eleven species only were affected by sedimentation and increasing algal cover and ten species were affected by high temperature, solar... |
| Tipo: Journal Contribution |
Palavras-chave: Coral bleaching; Agal cover; Solar Radiation; Sea level; Sedimentation; Red Sea Sediments Coral reefs Ecology. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1302 |
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| Eltaib, Elfatih. |
| Tide gauge measurements recorded at two stations in the Red Sea, at Port Sudan from 1986 - 1994 and at Gizan for the period of 1992 - 1994 are used to analyze the sea level changes and tide along the east and west coast of the Red Sea, using the harmonic analysis (t tide). Meteorological parameters during the same period are used to study the response of the sea level and residual sea level to local and global forcing. The relation between sea level and forces are examined using the correlation and cross covariance analysis. The correlation and cross-covariance coe cients between sea level and sea level pressure at Port Sudan indicate that the sea level responds to atmospheric pressure as non-inverse barometer. The linear trend for the coastal area shows a... |
| Tipo: Theses and Dissertations |
Palavras-chave: Tide gauges; Atmospheric pressure; Wind; Sea level; Tides; Meteorological observations. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4548 |
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| Moreano, H.; Arreaga, P.; Nath, J.. |
| La disponibilidad de mareogramas de varios puertos de la costa continental del Ecuador y Galápagos, hizo posible realizar su análisis y entender el comportamiento del tsunami del 27 de febrero de 2010 en la costa nacional y en el archipiélago. En general los mareógrafos de la zona costera reciben la cresta de la primera onda minutos después de la hora pronosticada para la bajamar, cerca de las 08H30R (hora local) de la mañana del día sábado 27, registrándose por lo menos tres ondas de amplitudes que variaron entre 20 y 70 cm. y períodos que alcanzaron las 2 horas para posteriormente registrar anormalidades con amplitudes y períodos mucho menores respondiendo probablemente a las características propias de cada puerto. En la caleta Aeolian de la Isla Baltra... |
| Tipo: Journal Contribution |
Palavras-chave: Tsunamis; Tidal waves; Sea level. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4654 |
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| Blivi, A.B.. |
| Une revue des sites côtiers où un recul actuel di rivage est observé sur les côtes sableuses enl Afrique de l'Ouest et du Centre montre que ce processus dynamique résulte en général de l'action humaine. II n'est pas lié à la transgression .... corrélative l'effet de serre. En Afrique de l'Ouest et du Centre, plusiers études ont porté sur les variations du niveau marin mettant en évidence d'ianciennes plages avec des ...-rock. L'analyse statistique des données marégraphiques disponibles, quoique relativement lirnitécs, des stations littorales d'Abidjan, de Takoradi et de Téma, de différentes durées, montre, a partir des données de Takoradi, des tendances variables. La hausse du niveau marin le long des côtes du golfe du Bénin pourrait atteindre 30cm en... |
| Tipo: Book Section |
Palavras-chave: Coastal zone; Collisions; Sea level; Sea level; Http://aims.fao.org/aos/agrovoc/c_34115. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/1181 |
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| SUGUIO,KENITIRO; TATUMI,SONIA H.; KOWATA,EMÍLIA A.; MUNITA,CASIMIRO S.; PAIVA,ROSEMEIRE P.. |
| The Cananéia (Upper Pleistocene) and the Comprida Island (Holocene) formations, outcropping in the Comprida island (SP) have been mapped using geomorphological and lithological criteria. Only one sample of the Cananéia Formation, collected in the homonymous island in front of the Comprida Island, was beyond the limit of the standard radiocarbon method. But since the publication of the geological map of the area in 1978, there has been some doubt on the real occurrence of Pleistocene deposits in southern extremity of Comprida Island. This paper deals with the results of thermoluminescence (TL) ages of eight samples from Comprida Island, which corroborate the Pleistocene age assumed during mapping surveys of these deposits. On the other hand, possible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermoluminescence ages; Pleistocene; Sea level; São Paulo State. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100010 |
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| Registros recuperados: 59 | |
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