Dre Coralie Zorzi - Évolution des forêts subtropicales dans le passé et variabilité des moussons asiatiques
Dre Coralie Zorzi, chercheuse postdoctorale, CCMAR-IPMA, Lisbonne
Mardi 4 février 2025 à 12h30 - Tuesday, February 4, 2025 at 12:30 pm
Local PK-7605, 7e étage, 201 ave. du Président-Kennedy
Résumé / abstract:
In East Asia, climatic models simulate a striking paradox for the end of the century showing a higher increase in rainfall during winter compared to summer. Such seasonal distribution of the precipitation conflicts with the fundamental feature of a monsoonal system and evidences a strong decoupling with the South Asian monsoon, where moister summer and drier winter are simulated. Therefore, unraveling the nature of internal variability of Asian monsoons is of paramount importance. I present new vegetation record based on the analysis of pollens and spores from a deep-sea core collected in the East Sea, a relevant way to estimate the seasonal hydroclimatic pattern. Our record, covering the last 70 kyrs, is compared with South Asian monsoon-derived vegetation records from the Bay of Bengal to evaluate the relationship between the two main Asian monsoon systems during the Holocene and the last glacial period.
Évolution des forêts subtropicales dans le passé et variabilité des moussons asiatiques
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2025-02-04 12:30:00
2025-02-09 22:31:04
Dre Coralie Zorzi - Évolution des forêts subtropicales dans le passé et variabilité des moussons asiatiques
In East Asia, climatic models simulate a striking paradox for the end of the century showing a higher increase in rainfall during winter compared to summer. Such seasonal distribution of the precipitation conflicts with the fundamental feature of a monsoonal system and evidences a strong decoupling with the South Asian monsoon, where moister summer and drier winter are simulated. Therefore, unraveling the nature of internal variability of Asian monsoons is of paramount importance. I present new vegetation record based on the analysis of pollens and spores from a deep-sea core collected in the East Sea, a relevant way to estimate the seasonal hydroclimatic pattern. Our record, covering the last 70 kyrs, is compared with South Asian monsoon-derived vegetation records from the Bay of Bengal to evaluate the relationship between the two main Asian monsoon systems during the Holocene and the last glacial period.
Local PK-7605, 7e étage, 201 ave. du Président-Kennedy
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