https://scholars.lib.ntu.edu.tw/handle/123456789/571660
Title: | A muted El Ni?o-like condition during late MIS 3 | Authors: | Yamoah K.A Chabangborn A Chawchai S Fritz S LUDVIG LOWEMARK Kaboth-Bahr S Reimer P.J Smittenberg R.H Wohlfarth B. |
Keywords: | Atmospheric pressure; Climatology; Salinity measurement; Tropics; Asian-pacific region; Atmospheric circulation patterns; Climate sensitivity; Evolutionary dynamics; Hydrological regime; Last glacial period; Paleoclimate records; Southern oscillation; Glacial geology | Issue Date: | 2021 | Journal Volume: | 254 | Source: | Quaternary Science Reviews | Abstract: | The evolutionary dynamics of El Ni?o Southern Oscillation (ENSO) over the last glacial period remains understudied, despite its potential in providing a “cold case” for climate sensitivity studies. Here, we investigate SE Asian-Pacific paleoclimate records to decipher the dominant underlying mechanism that governed tropical Asian-Pacific hydrology during MIS 3. Our results suggest that the glacial emergence of the Sunda Shelf likely altered the atmospheric circulation pattern in Southeast (SE) Asia and led to the realignment of rainfall patterns between Thailand and Indonesia during the last glacial period. We also propose that the long-term hydrological regime change in the tropical Asian-Pacific region during MIS 3 was mainly influenced by an El Ni?o-like mechanism. An intense El Ni?o-like condition led to strong aridity in SE Asia during mid MIS 3. By late MIS 3, an enhanced seasonality dampened the intensity of the El Ni?o-like conditions, thus, leading to muted aridity in SE Asia. The alternating warm and wet summer months and droughts during winter favoured the proliferation of C4 plant types in Northern Thailand from mid MIS 3 to late MIS 3. ? 2021 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099365055&doi=10.1016%2fj.quascirev.2020.106782&partnerID=40&md5=2fd09bf36b6d3e03bc51cada5d289eaa https://scholars.lib.ntu.edu.tw/handle/123456789/571660 |
ISSN: | 2773791 | DOI: | 10.1016/j.quascirev.2020.106782 | SDG/Keyword: | Atmospheric pressure; Climatology; Salinity measurement; Tropics; Asian-pacific region; Atmospheric circulation patterns; Climate sensitivity; Evolutionary dynamics; Hydrological regime; Last glacial period; Paleoclimate records; Southern oscillation; Glacial geology |
Appears in Collections: | 地質科學系 |
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