Reconciling East Asia's mid-Holocene temperature discrepancy through vegetation-climate feedback

The term “Holocene temperature conundrum” refers to the inconsistencies between proxy-based reconstructions and transient model simulations, and it challenges our understanding of global temperature evolution during the Holocene. Climate reconstructions indicate a cooling trend following the Holocene Thermal Maximum, while model simulations indicate a consistent warming trend due to ice-sheet retreat and rising greenhouse gas concentrations. Various factors, such as seasonal biases and overlooked feedback processes, have been proposed as potential causes for this discrepancy. In this study, we examined the impact of vegetation-climate feedback on the temperature anomaly patterns in East Asia during the mid-Holocene (∼6 ka). By utilizing the fully coupled Earth system model EC-Earth and performing simulations with and without coupled dynamic vegetation, our objective was to isolate the influence of vegetation changes on regional temperature patterns. Our findings reveal that vegetation-climate feedback contributed to warming across most of East Asia, resulting in spatially diverse temperature changes during the mid-Holocene and significantly improved model-data agreement. These results highlight the crucial role of vegetation-climate feedback in addressing the Holocene temperature conundrum and emphasize its importance for simulating accurate climate scenarios.

NATURVETENSKAP Geovetenskap och miljövetenskap Naturgeografi hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Physical Geography hsv//eng
East Asia
Holocene temperature conundrum
Holocene Thermal Maximum
Paleoclimate simulations
Vegetation-climate feedback

Zhang, QiongStockholm University (författare)
Lu, ZhengyaoLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science(Swepub:lu)zh8715lu (författare)
Duan, YanwuUniversity of the Chinese Academy of Sciences (författare)
Cao, XianyongUniversity of the Chinese Academy of Sciences (författare)
Huang, JianpingLanzhou University (författare)
Chen, FahuLanzhou University,University of the Chinese Academy of Sciences (författare)
Stockholm UniversityLanzhou University (creator_code:org_t)

Av författaren/redakt...: Chen, Jie; Zhang, Qiong; Lu, Zhengyao; Duan, Yanwu; Cao, Xianyong; Huang, Jianping; visa fler...; Chen, Fahu; visa färre...

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