|
Titel |
Rapid climatic variability in the west Mediterranean during the last 25 000 years from high resolution pollen data |
VerfasserIn |
N. Combourieu Nebout, O. Peyron, I. Dormoy, S. Desprat, C. Beaudouin, U. Kotthoff, F. Marret |
Medientyp |
Artikel
|
Sprache |
Englisch
|
ISSN |
1814-9324
|
Digitales Dokument |
URL |
Erschienen |
In: Climate of the Past ; 5, no. 3 ; Nr. 5, no. 3 (2009-09-11), S.503-521 |
Datensatznummer |
250002549
|
Publikation (Nr.) |
copernicus.org/cp-5-503-2009.pdf |
|
|
|
Zusammenfassung |
High-temporal resolution pollen record from the Alboran Sea ODP Site 976,
pollen-based quantitative climate reconstruction and biomisation show that
changes of Mediterranean vegetation have been clearly modulated by short and
long term variability during the last 25 000 years. The reliability of the
quantitative climate reconstruction from marine pollen spectra has been
tested using 22 marine core-top samples from the Mediterranean. The ODP Site
976 pollen record and climatic reconstruction confirm that Mediterranean
environments have a rapid response to the climatic fluctuations during the
last Termination. The western Mediterranean vegetation response appears
nearly synchronous with North Atlantic variability during the last
deglaciation as well as during the Holocene. High-resolution analyses of the
ODP Site 976 pollen record show a cooling trend during the
Bölling/Allerød period. In addition, this period is marked by two
warm episodes bracketing a cooling event that represent the
Bölling-Older Dryas-Allerød succession. During the Holocene,
recurrent declines of the forest cover over the Alboran Sea borderlands
indicate climate events that correlate well with several events of increased
Mediterranean dryness observed on the continent and with Mediterranean Sea
cooling episodes detected by alkenone-based sea surface temperature
reconstructions. These events clearly reflect the response of the
Mediterranean vegetation to the North Atlantic Holocene cold events. |
|
|
Teil von |
|
|
|
|
|
|