Article
Geography, Physical
Haiwei Zhang, Xu Zhang, Yanjun Cai, Ashish Sinha, Christoph Spoetl, Jonathan Baker, Gayatri Kathayat, Zhengyu Liu, Ye Tian, Jiayu Lu, Zhenqian Wang, Jingyao Zhao, Xuexue Jia, Wenjing Du, Youfeng Ning, Zhisheng An, R. Lawrence Edwards, Hai Cheng
Summary: Research suggests that speleothem records in the East Asian summer monsoon region are influenced by large-scale circulation and latitudinal shifts of the monsoon rain belt, with their orbital-scale variations largely controlled by Northern Hemisphere summer insolation. Speleothem records and rainfall records reflect different aspects of monsoon dynamics.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Meteorology & Atmospheric Sciences
Chunzhu Chen, Wenwei Zhao, Xiaojian Zhang
Summary: This study investigates the impacts of two cold events on the millennial-scale variability of the East Asian summer monsoon (EASM) and finds significant differences in EASM variability between these events, indicating the important influence of orbital parameters on the EASM response. The meridional position and intensity of the East Asian subtropical westerly jet play a key role in this orbital effect.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Mi-Kyung Sung, Seok-Woo Son, Changhyun Yoo, Jaeyoung Hwang, Soon-Il An
Summary: The study demonstrates that abnormally warm winter weather in East Asia can lead to the onset of extremely cold weather in North America approximately one week earlier, mediated by the North Pacific Oscillation (NPO). Intense thermal advection over East Asia triggers the growth of the NPO, while changes in circulation positively contribute to the growth and maintenance of the NPO.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Shuai Hu, Tianjun Zhou, Bo Wu
Summary: The summer North Atlantic Oscillation (SNAO) is an important climate signal in regulating the interannual variability of summer rainfall in the Tibetan Plateau. The formation processes of the SNAO-related summer rainfall anomaly in the southeastern and northeastern TP have fundamental differences. Anomalous vertical and horizontal moisture advection make the largest contributions to the summer rainfall anomaly in the southeastern and northeastern TP, respectively.
JOURNAL OF CLIMATE
(2022)
Article
Geosciences, Multidisciplinary
Yurong Hou, Nathaniel C. Johnson, Chueh-Hsin Chang, Weijun Sun, Kai Man, Yujie Miao, Xichen Li
Summary: In recent decades, cold winters and springs over mid-latitude North America have been occurring frequently, contrary to the anthropogenic global warming trend. This study investigates the teleconnection between tropical oceans and North America, revealing that an anomalous tropical Atlantic warming can trigger a cold spring over central-western mid-latitude North America. The mechanisms revealed in this study have important implications for the predictability of cold springs over North America and various sectors such as agriculture, power supply, and public health.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Jia Wu, Song Yang, Chundi Hu, Junbin Wang, Qiaoling Ren
Summary: In recent decades, a novel Pacific-Atlantic seesaw/oscillation influences the sea level pressure anomalies over the northern subtropical region, mainly induced by North Tropical Atlantic sea surface temperature anomalies. This impacts the circulation and convection activities, with implications for early prediction of climate patterns.
ATMOSPHERIC RESEARCH
(2021)
Article
Meteorology & Atmospheric Sciences
Xiaowei Hong, Riyu Lu, Shangfeng Chen, Shuanglin Li
Summary: This study investigates the relationship between the summer North Atlantic Oscillation (SNAO) and the Silk Road pattern (SRP) and classifies the SNAO into two categories: strongly linked and weakly linked. It finds that the strongly linked SNAO is associated with precipitation and wind anomalies in northwestern Europe, leading to the formation of the SRP. The study also discusses the interdecadal correspondence between SNAO and SRP and finds similar results.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Harry West, Nevil Quinn, Michael Horswell
Summary: Drought events in Great Britain are influenced by the combined influence of the North Atlantic Oscillation (NAO) and East Atlantic Pattern (EA). The NAO and EA have different spatial influences on drought conditions in different regions during winter, while in summer, the influences are less distinctive. There is spatio-temporal variability in the propagation of meteorological to hydrological drought.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Lei Wang, Mingfang Ting
Summary: This study demonstrates that the summer North Atlantic Oscillation can be predicted two months in advance based on the strength of the March North Atlantic jet. This extended predictability is influenced by the spring stratosphere-troposphere coupling, contrary to the belief that this coupling is relatively inactive outside the winter season.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Jie Wu, Zhengguo Shi, Yongheng Yang
Summary: This study evaluates the impact of the Younger Dryas event on Asian climate characteristics using modeling data, revealing that the cooling signal caused by meltwater flux from the North Atlantic spreads to the whole Eurasian region, leading to a weakened East Asian summer monsoon and suppressed summer precipitation over East, South, and Central Asia.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Jiaju Zhao, Jianbao Liu, Jinzhao Liu, Shengqian Chen, Li Wang, Aifeng Zhou, Zhiping Zhang, Zhongwei Shen, Jie Chen, Lin Chen, Yunning Cao, Jing Hu
Summary: The influence of Holocene East Asian Summer Monsoon (EASM) rainfall on ecosystems over northern China remains controversial. By examining alkenone proxies in Dali Lake, northern China, we reconstructed temperature and salinity records and found a mid-Holocene EASM rainfall maximum that promoted forest expansion and vegetation recovery in the region.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Jasper A. Wassenburg, Hubert B. Vonhof, Hai Cheng, Alfredo Martinez-Garcia, Pia-Rebecca Ebner, Xianglei Li, Haiwei Zhang, Lijuan Sha, Ye Tian, R. Lawrence Edwards, Jens Fiebig, Gerald H. Haug
Summary: A study from the United States found that during the end of the ice age, massive iceberg discharges and meltwater pulses in the North Atlantic led to a shutdown of the Atlantic Meridional Overturning Circulation, causing dramatic changes in East Asian and Indian monsoon rainfall.
Article
Meteorology & Atmospheric Sciences
Yuepeng Hu, Botao Zhou, Tingting Han, Huixin Li, Huijun Wang
Summary: Using the S-EOF analysis, this study finds an in-phase change of drought from spring to summer in Northeast China, associated with geopotential height anomalies around Lake Baikal. The study also shows that the spring NAO plays a significant role in the in-phase change of spring-summer droughts over Northeast China, through the combined effects of zonal wave train and central Siberian soil moisture. These findings contribute to a better understanding of drought in Northeast China and have implications for disaster prevention and mitigation.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Valerio Lucarini, Vera Melinda Galfi, Jacopo Riboldi, Gabriele Messori
Summary: Understanding the statistical properties of extreme weather events and their underlying physical processes is crucial for evaluating climate variability, climate change, and associated hazards. Recent studies have shown that large deviation theory (LDT) is useful for investigating persistent extreme events and estimating long return periods. In this study, we utilize LDT and a state-of-the-art Earth system model to analyze the 2021 Western North America summer heatwave. We find that the occurrence of the heatwave can be attributed to climate variability, but its probability is greatly amplified by ongoing climate change. We also examine the spatial coherence and the role of the Rocky Mountains in influencing extreme events in the Western Pacific region of North America.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
John R. Albers, Matthew Newman
Summary: Predicting the North Atlantic Oscillation (NAO) and northern annular mode (NAM) on subseasonal timescales is challenging due to fast and unpredictable weather-related processes dominating their variability. A new linear inverse model (LIM) has been developed to identify key dynamical modes contributing to extended-range NAO skill, showing promise for real-world subseasonal NAO predictions.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Geography, Physical
Hanying Li, Christoph Spoetl, Hai Cheng
Summary: Previous research demonstrated that speleothems from the northern rim of the European Alps exhibit exceptional sensitivity and resolution in capturing submillennial-scale climate changes during the last glacial period, resembling Greenland ice-core records. The analysis of two stalagmites in this study confirmed the similarity in temperature rise at specific time points with the Greenland ice cores and also provided insights into the transition from cold stadial periods to warmer interstadial periods. Additionally, the study showed that delta C-13 values do not respond to short-term climate shifts due to rock-buffering effects but reflect a long-term trend of soil development linked to temperature changes.
JOURNAL OF QUATERNARY SCIENCE
(2021)
Article
Geography, Physical
Som Dutt, Anil K. Gupta, Hai Cheng, Steven C. Clemens, Raj K. Singh, Vinod C. Tewari
Summary: High-resolution proxy records from Mawmluh cave in northeastern India reveal sudden shifts in Indian summer monsoon intensity over the past two millennia, influenced by volcanic activity, solar insolation, and Inter-Tropical Convergence Zone dynamics.
QUATERNARY INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Ting-Yong Li, Yao Wu, Chuan-Chou Shen, Jun-Yun Li, Hong-Wei Chiang, Ke Lin, Liang-Cheng Tan, Xiu-Yang Jiang, Hai Cheng, R. Lawrence Edwards
Summary: The study presents a new stalagmite-based multidecadal Asian summer monsoon (ASM) record from Furong Cave in southwestern China, indicating the dominant influence of insolation, solar activity, and northern hemisphere hydroclimate events on ASM dynamics. The research also reveals precise timings and durations of weak ASM events and different effects of Heinrich events on ASM dynamics. The study suggests a decoupling correlation between mid-low latitudes and high latitudes during Heinrich events, and a possible different correlation between high and mid-low latitudes under glacial and inter-glacial background.
SCIENTIFIC REPORTS
(2021)
Article
Meteorology & Atmospheric Sciences
Hanying Li, Peng Hu, Qiong Zhang, Ashish Sinha, Hai Cheng
Summary: This study explores the climatic controls on modern interannual rainfall variability on Rodrigues Island, finding that increased rainfall over the SWIO is associated with warm SSTs over the equatorial central Pacific and excited Rossby waves in the tropical Indian Ocean, leading to enhanced water vapor transport and positive feedback contributing to large interannual variations over the SWIO.
ADVANCES IN ATMOSPHERIC SCIENCES
(2021)
Article
Geography, Physical
Xuefeng Wang, Wuhui Duan, Ming Tan, Binggui Cai, Jingyao Zhao, Lijuan Sha, Youfeng Ning, Hai Cheng, Lisheng Wang, Zhibang Ma, R. Lawrence Edwards, Jule Xiao
Summary: This study presents two replicated, high-precision-dated stalagmite oxygen isotope records from Yunnan province, southwest China, demonstrating that the stalagmite oxygen isotope in this region is mainly influenced by the Pacific Decadal Oscillation and associated atmospheric circulation, rather than local monsoon precipitation. The stalagmite oxygen isotope record is suitable for reconstructing PDO variations.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Geography, Physical
Zhengguo Shi, Peng Zhou, Xinzhou Li, Hai Cheng, Yingying Sha, Xiaoning Xie, Heng Liu, Jie Wu, Xiaodong Liu
Summary: The response of precipitation in Central Asia since the mid Holocene shows significant regional differences, mainly influenced by the westerlies. Annual precipitation has increased in the Balkhash-Altai region, while decreased in the Turan Plain, Mongolia-Baikal, and Tarim Basin. Summer precipitation changes are most pronounced, with the southward shift of westerly jet and wave-like anomalies in meridional winds playing a key role.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Geosciences, Multidisciplinary
Nicholas T. Hitt, Hussein R. Sayani, Alyssa R. Atwood, Pamela R. Grothe, Christopher Maupin, Gemma K. O'Connor, Rachel M. Walter, Daniel Gebregiorgis, Madeleine E. Hardt, Yanbin Lu, Hai Cheng, R. Lawrence Edwards, Kim M. Cobb
Summary: This study demonstrates the utility of reconstructing twentieth century climate trends using an ensemble of multiple, short coral records, and shows a shift toward warmer and wetter conditions in the central equatorial Pacific since 1970.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
GIzem Erkan, C. Serdar Bayari, Dominik Fleitmann, Hai Cheng, Larry Edwards, Mertcan Ozbakir
Summary: High-resolution Th-230 ages and stable isotope records from a stalagmite in Incesu Cave in south-central Anatolia provide insights into paleoclimate conditions during Marine Isotope Stage 3 (MIS3) and the Holocene. The study reveals wet periods in the early Holocene and relatively dry conditions in the late Holocene.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Charlotte Honiat, Daniela Festi, Paul S. Wilcox, R. Lawrence Edwards, Hai Cheng, Christoph Spoetl
Summary: This study presents a precisely dated stable isotope record for the early Last Interglacial in the European Alps, based on stalagmites from a cave. The research combines stable isotopes and pollen data to propose an absolutely dated chronological framework for peri-Alpine pollen successions during the first half of the Last Interglacial.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geochemistry & Geophysics
Yuan Yao, Yongsong Huang, Jiaju Zhao, Li Wang, Hai Cheng
Summary: This study reconstructed environmental changes before and after a volcanic eruption in 1776 using multiple lipid biomarkers. The results show that the eruption rapidly transformed the marsh environment into a lake environment and the chemical indicators and inferred pH values changed accordingly.
ORGANIC GEOCHEMISTRY
(2022)
Article
Geography, Physical
Yijia Liang, Kan Zhao, Yongjin Wang, R. Lawrence Edwards, Hai Cheng, Qingfeng Shao, Shitao Chen, Jinyu Wang, Junji Zhu
Summary: Ice core records reveal an anti-phased relationship between Greenland Dansgaard-Oeschger (DO) and Antarctic temperatures, suggesting a bipolar see-saw mechanism for interhemispheric thermal redistribution. The high-resolution paleoclimatic records reconstructed from stalagmite HJ1 in Huangjin Cave show strong millennial-scale fluctuations in delta O-18 and delta C-13, with discrepancies in structures and onsets. The East Asian summer monsoon is influenced by both hemispheres but better mimics the Antarctic temperature, indicating the important role of the Atlantic Meridional Overturning Circulation in modulating interhemispheric heat gradient.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Youwei Li, Carlos Perez-Mejias, Jingyao Zhao, Hanying Li, Haiwei Zhang, Jiayu Lu, Jian Wang, Pengzhen Duan, Xiyu Dong, Haibo Wang, Youfeng Ning, Zhi Qian, R. Lawrence Edwards, Hai Cheng
Summary: High-resolution hydroclimate records from a stalagmite in Rige Cave on the southeastern Tibetan Plateau provide insights into the hydroclimate variability and its global teleconnection. The records reveal the control factors of precipitation isotopes and the covariation between ISM rainfall and biomass change during the Younger Dryas. Prominent ISM events are identified, and a solar de Vries cycle is suggested to trigger the centennial-scale climate variations.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Multidisciplinary Sciences
Haiwei Zhang, Hai Cheng, Ashish Sinha, Christoph Spoetl, Yanjun Cai, Bin Liu, Gayatri Kathayat, Hanying Li, Ye Tian, Youwei Li, Jingyao Zhao, Lijuan Sha, Jiayu Lu, Binglin Meng, Xiaowen Niu, Xiyu Dong, Zeyuan Liang, Baoyun Zong, Youfeng Ning, Jianghu Lan, R. Lawrence Edwards
Summary: The Liangzhu culture in the Yangtze River Delta collapsed around 4300 years ago due to a short period of anomalously wet climate, with large-scale flooding causing the abandonment of the ancient city. Subsequent arid conditions further contributed to the demise of Neolithic cultures in the region. Major hydroclimatic changes between 4300 and 3000 years ago may have been influenced by the increasing frequency of the El Nino-Southern Oscillation in the context of weakened Northern Hemisphere summer insolation.
Article
Geosciences, Multidisciplinary
Jingyao Zhao, Liangcheng Tan, Dong Li, Carlos Perez-Mejias, Xiyu Dong, Jian Wang, Haiwei Zhang, Hai Cheng
Summary: This study presents new stable isotope data to investigate the seasonal variations of precipitation isotopes and identifies the importance of changes in atmospheric moisture circulations as the key factor underlying the fluctuations in precipitation isotopes.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geography, Physical
Marcela Eduarda Della Libera, Valdir Felipe Novello, Francisco William Cruz, Rebecca Orrison, Mathias Vuille, Shira Yoshi Maezumi, Jonas de Souza, Julio Cauhy, Jose Leandro Pereira Silveira Campos, Angela Ampuero, Giselle Utida, Nicolas Misailidis Strikis, Cintia Fernandes Stumpf, Vitor Azevedo, Haiwei Zhang, R. Lawrence Edwards, Hai Cheng
Summary: This study examines the paleoclimatic and paleoenvironmental history of the Amazon basin and the behavior of the South American Monsoon System (SAMS) using high-resolution delta O-18 and delta C-13 records from speleothems. The study reveals the influence of SAMS on precipitation patterns in the Amazon basin and highlights the changes in the region's climate over the centuries.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
Lingyu Zhang, Kristoffer Szilas
Summary: This study presents new petrological and geochemical data for the Narssaq Ultramafic Body (NUB) in the Itsaq Gneiss Complex of SW Greenland. The results indicate that the ultramafic rocks of NUB are not mantle residues, but instead represent crustal cumulates derived from high-Mg magmas.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Rong Xu, Sarah Lambart, Oliver Nebel, Ming Li, Zhongjie Bai, Junbo Zhang, Ganglan Zhang, Jianfeng Gao, Hong Zhong, Yongsheng Liu
Summary: This study investigated the iron isotope compositions of Cenozoic basalts in Southeast China, finding significant variations related to different types of basalts and their respective sources.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
C. J. Ebinger, Miriam C. Reiss, Ian Bastow, Mary M. Karanja
Summary: The East African rift system is formed above mantle upwellings and the formation of rifts is related to lithospheric thinning and magmatic activity. The amount of splitting varies spatially and the fast axes are predominantly parallel to the orientation of the rifts. Thick lithospheric modules have less splitting and different orientations, which may indicate mantle plume flow. Splitting rotates and increases in strength as it enters the rift zones, suggesting that the anisotropy is mainly present at shallow depths.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Correction
Geochemistry & Geophysics
Ekaterina Rojas-Kolomiets, Owen Jensen, Michael Bizimis, Gene Yogodzinski, Lukas Ackerman
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Robert W. Nicklas, Igor S. Puchtel, Ethan F. Baxter
Summary: Oxygen fugacity is a fundamental parameter for understanding redox processes in igneous systems. This study compares the Fe-XANES oxybarometry method with the V-in-olivine method for evaluating fO(2) in MORB lavas. The results show that the V-in-olivine method is not applicable to samples with low MgO content, and that the majority of Archean komatiite sources have lower fO(2) than modern MORB.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Chunfei Chen, Stephen F. Foley, Sebastian Tappe, Huange Ren, Lanping Feng, Yongsheng Liu
Summary: The volatile components CO2 and H2O play a major role in mantle melting and heterogeneity. In this study, Ca isotopes were used to trace the lithological heterogeneity in alkaline magmatic rocks. The results revealed the presence of K-richterite and carbonate components as the source of alkaline magmas with low delta 44/40Ca values. These findings highlight the importance of Ca isotopes as a robust tracer of lithological variation caused by volatiles in the Earth's upper mantle.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Timothee Jautzy, Gilles Rixhon, Regis Braucher, Romain Delunel, Pierre G. Valla, Laurent Schmitt, Aster Team
Summary: Although the current approach to estimate catchment-wide denudation rates using only 10Be concentrations has made significant progress in geomorphology, this study argues for the inclusion of 26Al measurements and testing of steady-state assumptions in slow eroding, formerly glaciated landscapes. The study conducted measurements of both 10Be and 26Al in stream sediments from the Vosges Massif in France and found that elevation, slope, channel steepness, and precipitation were the primary factors controlling denudation rates. The study also revealed a significant relationship between the extent of past glaciation and the cosmogenic (un-)steadiness in the stream sediments.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
Article
Geochemistry & Geophysics
Erik van der Wiel, Douwe J. J. van Hinsbergen, Cedric Thieulot, Wim Spakman
Summary: Numerical models of Earth's mantle dynamics can predict the vigour and mixing of mantle flow, and the average slab sinking rates are an unexplored parameter that can provide intrinsic information on these characteristics. Through numerical experiments, it has been found that slab sinking rates are strongly correlated with mantle convection and mixing, and may explain geochemical observations from hotspot volcanoes.
EARTH AND PLANETARY SCIENCE LETTERS
(2024)
