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| Wohlfarth, Barbara. |
| This report addresses the transition from the last interglacial into the last glacial period in Europe, which corresponds to the time interval between approximately 122,000 and 70,000 years before present. Based on state-of-the-art paleoclimatic and paleoenvironmental information from selected terrestrial, marine and ice core records, questions regarding the magnitude, duration, and cyclicity of early glacial stadial and interstadials are discussed. One of the most important aspects in this respect is the timing of climatic/environmental changes seen in terrestrial, marine, ice core and speleothem records, and most importantly, how and on which basis and by which proxy these climatic shifts are defined. Since correlations between archives are made to... |
| Tipo: Text |
Palavras-chave: CLIMATE MODELS; CLIMATES; CLIMATIC CHANGE; HISTORICAL ASPECTS; RADIOACTIVE WASTE DISPOSAL; UNDERGROUND DISPOSAL. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00499/61046/64453.pdf |
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| Binet, D; Servain, J. |
| Sea surface temperature along the northern coast of the Gulf of Guinea drops abruptly twice a year, with a moderate decrease in boreal winter and a greater one in summer. Several mechanisms have been proposed to explain these coolings: Ekman upwelling due to local wind, remote wind forcing in the western Atlantic, geostrophic adjustment to the Guinea current variations or eddies created by headlands in the current. The resulting seasonally-induced plankton production has led to the development of pelagic fisheries, with dramatic increases in Sardinella aurita catches in Cote d'Ivoire and Ghana during the last decade and new spatial and seasonal distributions. A study to account for these changes was undertaken on the basis of wind and temperature data... |
| Tipo: Text |
Palavras-chave: CLIMATIC CHANGE; PELAGIC FISHERIES; UPWELLING; WEST AFRICA. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21052/18678.pdf |
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