TRACE
Tephra constraints on rapid climatic events
| Coordinatore | SWANSEA UNIVERSITY
Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie. |
| Nazionalità Coordinatore | United Kingdom [UK] |
| Totale costo | 1˙471˙116 € |
| EC contributo | 1˙471˙116 € |
| Programma | FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) |
| Code Call | ERC-2010-StG_20091028 |
| Funding Scheme | ERC-SG |
| Anno di inizio | 2011 |
| Periodo (anno-mese-giorno) | 2011-09-01 - 2016-08-31 |
Partecipanti
| # | ||||
|---|---|---|---|---|
| 1 |
SWANSEA UNIVERSITY
Organization address
address: SINGLETON PARK contact info |
UK (SWANSEA) | hostInstitution | 1˙471˙116.80 |
| 2 |
SWANSEA UNIVERSITY
Organization address
address: SINGLETON PARK contact info |
UK (SWANSEA) | hostInstitution | 1˙471˙116.80 |
Mappa
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Obiettivo del progetto (Objective)
'Little has challenged our understanding of climate change more so than the abruptness with which large-scale shifts in temperature occurred during the last glacial period. Atmospheric temperature jumps of 8-16°C, occurring within decades over Greenland, were closely matched by rapid changes in North Atlantic sea surface temperatures. Though these climatic instabilities are well-documented in various proxy records, the causal mechanisms of such short-lived oscillations remain poorly understood. Two hypotheses have been proposed: one relating to the behaviour of the ocean circulation and the other to the dynamics of the atmosphere. Testing these hypotheses, however, is severely hampered by dating uncertainties that prevent the integration of proxy records on common timescales. As a result unravelling the lead/lag responses (hence cause and effect) between the Earth’s climate components is currently beyond our reach. TRACE will exploit a powerful new approach whereby microscopic traces of volcanic events are employed to precisely correlate proxy records from the North Atlantic region to assess the phasing relationships between the atmosphere and the ocean during these rapid climatic events. Volcanic layers have the unique advantage of representing fixed time-lines between different proxy records. This correlation tool has experienced a considerable step-change in recent years, with invisible layers of volcanic ash traced over much wider geographical regions than previously thought. What is more, recent work has identified new, previously unknown eruptions - several of which coincide with the rapid climatic jumps imprinted in the proxy records. Thus tephra isochrones represent (perhaps the only) independent constraints for resolving past events on decadal timescales.'