Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene
For the last decades, climatologists and paleoecologists have focused their attention on the semi-arid Sahel region, one of the most sensitive areas on the planet to even small climatic shifts. Studies of West African paleohydrology reconstructed from continental records of lake-level fluctuations a...
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/2648 2023-05-15T17:30:21+02:00 Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene Bouimetarhan, Ilham Mollenhauer, Gesine Zonneveld, Karin 2009-04-17 application/pdf https://media.suub.uni-bremen.de/handle/elib/2648 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000114177 eng eng Universität Bremen FB5 Geowissenschaften https://media.suub.uni-bremen.de/handle/elib/2648 urn:nbn:de:gbv:46-diss000114177 info:eu-repo/semantics/openAccess western Sahel eastern tropical North Atlantic last deglaciation late Holocene Palynology 550 550 Earth sciences and geology ddc:550 Dissertation doctoralThesis 2009 ftsubbremen 2022-11-09T07:09:51Z For the last decades, climatologists and paleoecologists have focused their attention on the semi-arid Sahel region, one of the most sensitive areas on the planet to even small climatic shifts. Studies of West African paleohydrology reconstructed from continental records of lake-level fluctuations as well as from marine cores recovered off west tropical Africa have revealed alternating arid and humid conditions. These hydrological changes are thought to be associated with weakening and strengthening of the African monsoon circulation occurring on short and long - time scales. They are forced by shifts in the average latitudinal position of the Intertropical Convergence Zone (ITCZ) and its related tropical rainbelt in association with changes in high-latitude climate.The present study is based on the high-resolution palynological analysis of marine sediment cores recovered off the Senegal River mouth and provides a detailed reconstruction of the hydrological variability of western Sahel during the last deglaciation and the late Holocene and the past oceanic circulation variability in the eastern tropical Atlantic with respect to abrupt climate changes Doctoral or Postdoctoral Thesis North Atlantic Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
western Sahel eastern tropical North Atlantic last deglaciation late Holocene Palynology 550 550 Earth sciences and geology ddc:550 |
spellingShingle |
western Sahel eastern tropical North Atlantic last deglaciation late Holocene Palynology 550 550 Earth sciences and geology ddc:550 Bouimetarhan, Ilham Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
topic_facet |
western Sahel eastern tropical North Atlantic last deglaciation late Holocene Palynology 550 550 Earth sciences and geology ddc:550 |
description |
For the last decades, climatologists and paleoecologists have focused their attention on the semi-arid Sahel region, one of the most sensitive areas on the planet to even small climatic shifts. Studies of West African paleohydrology reconstructed from continental records of lake-level fluctuations as well as from marine cores recovered off west tropical Africa have revealed alternating arid and humid conditions. These hydrological changes are thought to be associated with weakening and strengthening of the African monsoon circulation occurring on short and long - time scales. They are forced by shifts in the average latitudinal position of the Intertropical Convergence Zone (ITCZ) and its related tropical rainbelt in association with changes in high-latitude climate.The present study is based on the high-resolution palynological analysis of marine sediment cores recovered off the Senegal River mouth and provides a detailed reconstruction of the hydrological variability of western Sahel during the last deglaciation and the late Holocene and the past oceanic circulation variability in the eastern tropical Atlantic with respect to abrupt climate changes |
author2 |
Mollenhauer, Gesine Zonneveld, Karin |
format |
Doctoral or Postdoctoral Thesis |
author |
Bouimetarhan, Ilham |
author_facet |
Bouimetarhan, Ilham |
author_sort |
Bouimetarhan, Ilham |
title |
Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
title_short |
Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
title_full |
Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
title_fullStr |
Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
title_full_unstemmed |
Oceanic and climatic variability in the eastern tropical North Atlantic and over western Sahel during the last deglaciation and the Holocene |
title_sort |
oceanic and climatic variability in the eastern tropical north atlantic and over western sahel during the last deglaciation and the holocene |
publisher |
Universität Bremen |
publishDate |
2009 |
url |
https://media.suub.uni-bremen.de/handle/elib/2648 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000114177 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/2648 urn:nbn:de:gbv:46-diss000114177 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766126708104101888 |