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Registros recuperados: 16 | |
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Bian, Yeping; Jian, Zhimin; Weng, Chengyu; Kuhnt, Wolfgang; Bolliet, Timothe; Holbourn, Ann. |
A palynological analysis of a marine sediment core in the southern Philippines, provides a detailed regional vegetation and climate history for the West Pacific Warm Pool (WPWP) since the Last Glacial Maximum (LGM). Chronology was determined by a detailed oxygen isotope record. A higher representation of pollen from tropical upper montane rainforest during the LGM indicate that this forest type moved down along elevation, probabaly due to the lowered temperature. During the last deglaciation and the early Holocene, mangroves were more expanded and tropical mid and upper montane rainforests were restricted, suggesting a rising sea-level and temperature increase. Herbaceous pollen and pteridophyte spore records indicate a much drier condition during the LGM... |
Tipo: Text |
Palavras-chave: Last Glacial Maximum; Tropical rainforests; Palynological analyses; Sea-level change; River discharge. |
Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00213/32468/30921.pdf |
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Lehir, P; Salomon, J; Leprovost, C; Chabertd'Hieres, G; Mauvais, J. |
By taking into account salinity measurements and consequently mean residence time, current measurements, tidal computation with a 2-D model and wind induced currents provided by a 3-D model, a global diagram of residual flow in Seine Bay is given. Main patterns are exhibited: density currents in the eastern part of the bay, off the Seine Estuary, wind induced circulation, especially along the coast and over the Channels, and tidal residual patterns induced by topography. |
Tipo: Text |
Palavras-chave: Simulation; Modelling; Wind driven circulation; Bottom topography; Density gradients; Water masses; River discharge; Haline circulation; Salinity gradients; Tidal currents; Residual flow. |
Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-1263.pdf |
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Arai,Fabiane K.; Pereira,Silvio B.; Gonçalves,Geula G. G.. |
The quantitative knowledge of hydrological parameters (rainfall and flow) and their spatial and temporal variability on the regions or basins should be understood as essential to the efficient planning and management of water resources. Because the Ivinhema Basin, located in the state of Mato Grosso do Sul, Brazil, represents an important inductor on the region agricultural development, characterized as a major producer of grains and meat, it was used to characterize the hydrological study. Knowing the rainfall, flow and drainage area of each of the studied affluent, it was calculated the proportion of contribution of the affluent. To that end, it was proposed the concepts of potential and real contributions, aiming to identify the proportion of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: River discharge; Water resources; Rainfall. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000300018 |
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Laiz, Irene; Ferrer, Luis; Plomaritis, Theocharis A.; Charria, Guillaume. |
Daily time series of in-situ tide gauge records and river runoff data were analysed to investigate the contribution of river discharge storm events to sea level in the Bay of Biscay. Three main river systems were considered for this study, representing cases of small (Nervión, 1900 km2), medium (Adour, 16880 km2) and large (Gironde, 84811 km2) watershed basins. Typical storms correspond to water discharge rates of 150, 700, and 1100 m3 s−1 from the Nervión, Adour, and Gironde rivers, respectively. The effect of these events on daily mean sea level was evaluated using two different approaches: (1) through the analysis of time series of tide gauges placed within the river mouths; and (2) through numerical simulations using the ROMS model (Regional Ocean... |
Tipo: Text |
Palavras-chave: Bay of Biscay; Sea level; Tide gauges; River discharge; ROMS modelling. |
Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00169/28070/26285.pdf |
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Guegueniat, P; Boust, D; Gandon, R; Hemon, G; Phillipot, J; Sanchez, J; Marin, P; Pieri, J. |
This paper reports the study of iron geochemical behavior by the measurement of total iron, iron associated with mineral coat, and ratio FEII/FEIII. The results of total iron are exploited by normalisation with regard to aluminium and scandium. |
Tipo: Text |
Palavras-chave: River discharge; Sediments; Suspended particulate matter; Ion association; Iron; Geochemical cycle. |
Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-1301.pdf |
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Fouilland, E.; Trottet, A.; Bancon-montigny, C.; Bouvy, M.; Le Floc'H, E.; Gonzalez, Jean-louis; Hatey, E.; Mas, S.; Mostajir, B.; Nouguier, J.; Pecqueur, D.; Rochelle-newall, E.; Rodier, C.; Roques, C.; Salles, C.; Tournoud, M. -g.; Vidussi, F.. |
Over half of the total nitrogen, phosphorus, silicate and dissolved organic carbon (DOC) loading was discharged from the Wile River into the Thau Lagoon waters within the first five days of what was considered to be the autumn flash flood period. Such loads represented about 8% and 3% of the yearly averaged total nitrogen and phosphorus load in Thau Lagoon, respectively. Although this event affected >20% of the total lagoon volume, river trace metal loads contributed apparently only weakly to the increase in labile trace metal concentrations in the lagoon surface waters. Differences between theoretical dilution values and observed values were also noticed for phosphate, silicate and dissolved organic carbon (DOC) concentrations. DOC losses (10-50%)... |
Tipo: Text |
Palavras-chave: River discharge; Phytoplankton and bacteria production; DIN uptake rates; Metal contaminants; Mediterranean coastal waters. |
Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00130/24165/22492.pdf |
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Li, Jialin; Wang, Yanhong; Zhang, Renshun. |
Most of the flood from the wide inner lowland plain discharges through tide locks on coast, and the influence of tidal flat inning projects on the tide lock drainage must be solved by seawall line choice. Taking the Cangdongpian inning area on the west side of Tiaozini Sand as a case study, the paper analyzed the compages and validity of ebb tide water to maintain the flood discharge creek below the tide lock for different projects of seawall line. Result indicates that a rational seawall line program has little influence on the flood discharge of lock during the mean tide or general spring tides, but has certain influences during a storm surge or an extreme spring tide in autumn. However it could be resolved by several times of artificial scour on the... |
Tipo: Journal Contribution |
Palavras-chave: Tidal flats; River discharge. |
Ano: 2007 |
URL: http://hdl.handle.net/1834/5854 |
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Rocha,Igor P. da; Holanda,Francisco S. R.; Araújo Filho,Renisson N.; Casado,Ana P. B.; Bandeira,Arilmara A.. |
The objectives of this paper were to analyze the seasonal distributions of climatic and hydrological variables along the Lower São Francisco River, Northeastern Brazil, between the States of Sergipe and Alagoas, and further, to verify their relationships with the erosion of the right margin in Sergipe State. The investigated area comprises the sedimentary portions of the Lower São Francisco River, located at the Cotinguiba-Pindoba Irrigated Perimeter. Historical records of variables such as rainfall, river streamflow velocity, river discharge, wind velocity and the predominant direction were collected from a climatological station as well as rain and streamflow gauges located in the municipality of Propriá. The rainfall that occurs in the region is... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: River discharge; Wind; Rainfall; Water resources. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000200004 |
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Registros recuperados: 16 | |
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