6533b852fe1ef96bd12ab90d
RESEARCH PRODUCT
Northern Hemisphere atmospheric pattern enhancing Eastern Mediterranean Transient-type events during the past 1000 years
A. Cortina-guerraJ. J. Gomez-navarroB. MartratJ. P. MontávezA. IncarbonaJ. O. GrimaltM.-a. SicreP. G. MortynP. G. Mortynsubject
Mediterranean climate010506 paleontologyAlkenoneEUROPEGULF010504 meteorology & atmospheric sciencesDEEPStratigraphyCIRCULATIONGeopotential heightStructural basinEnvironmental protection01 natural sciencesEnvironmental pollutionREGIONAL CLIMATE PALAEOSIMULATIONVARIABILITYEastern Mediterranean TransientTD169-171.8GE1-350SOLAR[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography0105 earth and related environmental sciences[SDU.OCEAN]Sciences of the Universe [physics]/Ocean AtmosphereGlobal and Planetary ChangeSEANorthern HemispherePaleontologyClimate model simulationsEnvironmental sciencesMODELSea surface temperatureEastern mediterraneanTD172-193.513. Climate action[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/ClimatologyClimatologyClimate modelSTRAITGeologydescription
High-resolution climate model simulations for the last millennium were used to elucidate the main winter Northern Hemisphere atmospheric pattern during enhanced Eastern Mediterranean Transient (EMT-type) events, a situation in which an additional overturning cell is detected in the Mediterranean at the Aegean Sea. The differential upward heat flux between the Aegean Basin and the Gulf of Lion was taken as a proxy of EMT-type events and correlated with winter mean geopotential height at 500 mbar in the Northern Hemisphere (20–90∘ N and 100∘ W–80∘ E). Correlations revealed a pattern similar to the East Atlantic/Western Russian (EA/WR) mode as the main driver of EMT-type events, with the past 1000 years of EA/WR-like mode simulations being enhanced during insolation minima. Our model results are consistent with alkenone sea surface temperature (SST) reconstructions that documented an increase in the west–east basin gradients during EMT-type events.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-07-20 |