气候变化领域集成服务门户(CCPortal): Reconfiguration of Amazon's connectivity in the climate system

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DOI	10.1063/5.0165861
	Reconfiguration of Amazon's connectivity in the climate system
	Giammarese, Adam; Brown, Jacob; Malik, Nishant
发表日期	2024
ISSN	1054-1500
EISSN	1089-7682
起始页码	34
结束页码	1
卷号	34 期号:1
英文摘要	With the recent increase in deforestation, forest fires, and regional temperatures, the concerns around the rapid and complete collapse of the Amazon rainforest ecosystem have heightened. The thresholds of deforestation and the temperature increase required for such a catastrophic event are still uncertain. However, our analysis presented here shows that signatures of changing Amazon are already apparent in historical climate data sets. Here, we extend the methods of climate network analysis and apply them to study the temporal evolution of the connectivity between the Amazon rainforest and the global climate system. We observe that the Amazon rainforest is losing short-range connectivity and gaining more long-range connections, indicating shifts in regional-scale processes. Using embeddings inspired by manifold learning, we show that the Amazon connectivity patterns have undergone a fundamental shift in the 21st century. By investigating edge-based network metrics on similar regions to the Amazon, we see the changing properties of the Amazon are noticeable in comparison. Furthermore, we simulate diffusion and random walks on these networks and observe a faster spread of perturbations from the Amazon in recent decades. Our methodology innovations can act as a template for examining the spatiotemporal patterns of regional climate change and its impact on global climate using the toolbox of climate network analysis.
语种	英语
WOS研究方向	Mathematics ; Physics
WOS类目	Mathematics, Applied ; Physics, Mathematical
WOS记录号	WOS:001147121800002
来源期刊	CHAOS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294751
作者单位	Rochester Institute of Technology; University of Connecticut
推荐引用方式 GB/T 7714	Giammarese, Adam,Brown, Jacob,Malik, Nishant. Reconfiguration of Amazon's connectivity in the climate system[J],2024,34(1).
APA	Giammarese, Adam,Brown, Jacob,&Malik, Nishant.(2024).Reconfiguration of Amazon's connectivity in the climate system.CHAOS,34(1).
MLA	Giammarese, Adam,et al."Reconfiguration of Amazon's connectivity in the climate system".CHAOS 34.1(2024).