Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods
Abstract The Iberian Peninsula is located at the intersection between the subtropical and temperate climate zones and the paleoclimate records from this region are key to elucidate the varying humidity and changing dominance of atmospheric circulation patterns in the Mediterranean-North African regi...
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ftdoajarticles:oai:doaj.org/article:1a8308b604264df584db0ec4d74a1b13 2023-05-15T17:34:07+02:00 Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods Jon Camuera María J. Ramos-Román Gonzalo Jiménez-Moreno Antonio García-Alix Liisa Ilvonen Leena Ruha Graciela Gil-Romera Penélope González-Sampériz Heikki Seppä 2022-05-01T00:00:00Z https://doi.org/10.1038/s41598-022-12047-1 https://doaj.org/article/1a8308b604264df584db0ec4d74a1b13 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-12047-1 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-12047-1 2045-2322 https://doaj.org/article/1a8308b604264df584db0ec4d74a1b13 Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-022-12047-1 2022-12-31T02:30:46Z Abstract The Iberian Peninsula is located at the intersection between the subtropical and temperate climate zones and the paleoclimate records from this region are key to elucidate the varying humidity and changing dominance of atmospheric circulation patterns in the Mediterranean-North African region in the past. Here we present a quantitative hydroclimate reconstruction for the last ca. 200 kyr from southern Iberian Peninsula based on pollen data from the Padul lake sediment record. We use the newly developed Scale-normalized Significant Zero crossing (SnSiZer) method to detect not only the statistically significant precipitation changes but also to estimate the relative magnitude of these oscillations in our reconstruction. We identify six statistically significant main humid phases, termed West Mediterranean Humid Periods (WMHP 1–6). These humid periods correlate with other West/Central Mediterranean paleohydrological records, suggesting that similar climatic factors affected different areas of the Mediterranean. In addition, the WMPHs are roughly coeval with the African Humid Periods (AHPs) during high seasonality, suggesting the same North Atlantic ocean-atmospheric dynamics and orbital forcing as main drivers of both areas. In contrast, during low seasonality periods, the West Mediterranean still appears to be affected by the westerlies and the local Mediterranean rainfall systems with moderate-to-high precipitation, whereas West Africa was characterized by droughts. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Scientific Reports 12 1 |
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Medicine R Science Q |
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Medicine R Science Q Jon Camuera María J. Ramos-Román Gonzalo Jiménez-Moreno Antonio García-Alix Liisa Ilvonen Leena Ruha Graciela Gil-Romera Penélope González-Sampériz Heikki Seppä Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
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Medicine R Science Q |
description |
Abstract The Iberian Peninsula is located at the intersection between the subtropical and temperate climate zones and the paleoclimate records from this region are key to elucidate the varying humidity and changing dominance of atmospheric circulation patterns in the Mediterranean-North African region in the past. Here we present a quantitative hydroclimate reconstruction for the last ca. 200 kyr from southern Iberian Peninsula based on pollen data from the Padul lake sediment record. We use the newly developed Scale-normalized Significant Zero crossing (SnSiZer) method to detect not only the statistically significant precipitation changes but also to estimate the relative magnitude of these oscillations in our reconstruction. We identify six statistically significant main humid phases, termed West Mediterranean Humid Periods (WMHP 1–6). These humid periods correlate with other West/Central Mediterranean paleohydrological records, suggesting that similar climatic factors affected different areas of the Mediterranean. In addition, the WMPHs are roughly coeval with the African Humid Periods (AHPs) during high seasonality, suggesting the same North Atlantic ocean-atmospheric dynamics and orbital forcing as main drivers of both areas. In contrast, during low seasonality periods, the West Mediterranean still appears to be affected by the westerlies and the local Mediterranean rainfall systems with moderate-to-high precipitation, whereas West Africa was characterized by droughts. |
format |
Article in Journal/Newspaper |
author |
Jon Camuera María J. Ramos-Román Gonzalo Jiménez-Moreno Antonio García-Alix Liisa Ilvonen Leena Ruha Graciela Gil-Romera Penélope González-Sampériz Heikki Seppä |
author_facet |
Jon Camuera María J. Ramos-Román Gonzalo Jiménez-Moreno Antonio García-Alix Liisa Ilvonen Leena Ruha Graciela Gil-Romera Penélope González-Sampériz Heikki Seppä |
author_sort |
Jon Camuera |
title |
Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
title_short |
Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
title_full |
Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
title_fullStr |
Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
title_full_unstemmed |
Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods |
title_sort |
past 200 kyr hydroclimate variability in the western mediterranean and its connection to the african humid periods |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-022-12047-1 https://doaj.org/article/1a8308b604264df584db0ec4d74a1b13 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022) |
op_relation |
https://doi.org/10.1038/s41598-022-12047-1 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-12047-1 2045-2322 https://doaj.org/article/1a8308b604264df584db0ec4d74a1b13 |
op_doi |
https://doi.org/10.1038/s41598-022-12047-1 |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
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1766132847275409408 |