Article
Environmental Sciences
Yichen Zhang, Shilong Piao, Yan Sun, Brendan M. Rogers, Xiangyi Li, Xu Lian, Zhihua Liu, Anping Chen, Josep Penuelas
Summary: Vegetation productivity in the Northern Hemisphere has increased under climate change, but the correlations with summer temperature are projected to decrease by the end of the century. This could have implications for the terrestrial carbon sink. The relationship between summer vegetation productivity and temperature will become negative in temperate and boreal regions by the late twenty-first century, while Arctic vegetation productivity continues to increase with further summer warming. This suggests that photosynthetic thermal acclimation may mitigate the negative impacts of future warming on vegetation.
NATURE CLIMATE CHANGE
(2022)
Article
Environmental Sciences
In-Hong Park, Sang-Wook Yeh, Wenju Cai, Guojian Wang, Seung-Ki Min, Sang-Ki Lee
Summary: Climate models vary in simulating Atlantic Ocean circulation and carbon uptake. This study uses sea surface salinity (SSS) as a constraint to show that Northern Hemisphere surface temperatures warm slower than expected. The present-day SSS in the North Atlantic subpolar region significantly influences future carbon uptake, reducing uncertainty in warming and carbon accumulation.
NATURE CLIMATE CHANGE
(2023)
Article
Multidisciplinary Sciences
Dalei Hao, Gautam Bisht, Hailong Wang, Donghui Xu, Huilin Huang, Yun Qian, L. Ruby Leung
Summary: Will snow become cleaner or dirtier in the future? Using Earth System Model simulations, this study reveals a cleaner snow future and highlights its benefits for future water supply from snowmelt.
NATURE COMMUNICATIONS
(2023)
Article
Geosciences, Multidisciplinary
Kai Kornhuber, Talia Tamarin-Brodsky
Summary: The study reveals that when the equator-to-pole temperature difference is weaker, the propagation speed of summer weather systems slows down, leading to the possibility of hotter summer weather becoming more persistent, which could increase the risk of extreme heat waves.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Zheng-Hang Fu, Ruifen Zhan, Jiuwei Zhao, Yohei Yamada, Kexin Song
Summary: This study uses high-resolution climate models to project changes in future multiple tropical cyclone events (MTCEs) by 2050 in the major basins of the Northern Hemisphere. The results show that there will be a significant increase in the frequency and duration of MTCEs over the North Atlantic (NA), a notable decrease over the western North Pacific (WNP), and little change over the eastern North Pacific (ENP). The increase in MTCEs over the NA is concentrated in August-September, while the decrease over the WNP occurs in most months.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Guojie Hu, Lin Zhao, Tonghua Wu, Xiaodong Wu, Hotaek Park, Ren Li, Xiaofan Zhu, Jie Ni, Defu Zou, Junming Hao, Wangping Li
Summary: This study evaluates the air temperature trends in the permafrost region of the Northern Hemisphere (PRONH) using CMIP6 models and observational data. The results show that there are variations in air temperature trends among different permafrost regions, and the greatest warming trends are observed in high-latitude permafrost regions under future scenarios.
Article
Environmental Sciences
Xian Zhu, Shao-Yi Lee, Xiaohang Wen, Zhigang Wei, Zhenming Ji, Zhiyuan Zheng, Wenjie Dong
Summary: Historical snow cover over the Northern Hemisphere has generally decreased in recent decades, with a notable increase in October-December. CMIP6 models outperform CMIP5 in simulating snow cover, with projections showing a continued reduction in snow cover over the next 80 years under all scenarios, particularly under high greenhouse gas emission scenarios. Reducing greenhouse gas emissions is crucial to stabilizing snow cover in the future.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Green & Sustainable Science & Technology
Haozeyu Miao, Haiming Xu, Gang Huang, Kai Yang
Summary: Understanding future changes in wind energy resources under different greenhouse gas emission scenarios is crucial for global energy security and economy. This study evaluates the performance of global climate models in simulating wind speed over the Northern Hemisphere and explores the future changes in wind speed and wind energy under various emission scenarios. The results indicate that CMIP6 models show better performance compared to CMIP5 models in simulating surface wind speeds, and future projections suggest a generally decreasing trend in wind speed except for the SSP3-7.0 scenario. It is found that the relationship between wind energy and emissions varies across regions, with the fastest decline in wind speed observed in Europe and Asia under SSP3-7.0 scenario. These findings highlight the importance of emission reduction in preserving wind energy resources and their spatial distribution over the Northern Hemisphere.
Article
Meteorology & Atmospheric Sciences
Chuanhua Li, Yufei Wei, Yunfan Liu, Liangliang Li, Lixiao Peng, Jiahao Chen, Lihui Liu, Tianbao Dou, Xiaodong Wu
Summary: This study simulated the spatial changes in active layer thickness (ALT) in the Northern Hemisphere using monitoring and temperature data, showing an overall increase in ALT during the past two decades and predicting further increases by 2100, particularly in low- and mid-latitude permafrost areas.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Multidisciplinary Sciences
Rei Chemke, Janni Yuval
Summary: The Hadley circulation plays a crucial role in determining precipitation and temperature patterns at low latitudes. However, there is currently a large uncertainty in the recent changes of the Hadley circulation in the Northern Hemisphere. This study demonstrates that the circulation has considerably weakened over recent decades and attributes the weakening to anthropogenic emissions, which enhances our confidence in projections of tropical climate change caused by human activities.
Article
Environmental Sciences
Ian T. Stevens, Tristram D. L. Irvine-Fynn, Arwyn Edwards, Andrew C. Mitchell, Joseph M. Cook, Philip R. Porter, Tom O. Holt, Matthias Huss, Xavier Fettweis, Brian J. Moorman, Birgit Sattler, Andy J. Hodson
Summary: Melting glacier ice surfaces host active microbial communities that play important roles in glacial melt, biogeochemical cycling, and downstream ecosystems. However, these communities are still poorly understood. This study found similar microbial abundances in surface meltwaters from eight glaciers across Europe, North America, and western Greenland, and these abundances were correlated with suspended sediment concentration. It is predicted that a large number of these microbes will be released into downstream ecosystems in the next few decades.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Xinyu Li, Shushi Peng, Yi Xi, R. Iestyn Woolway, Gang Liu
Summary: The excess lake surface warming during ice-off and ice-on month due to earlier ice loss and later ice formation across the Northern Hemisphere has been shown. The contribution of long-term variations in lake ice seasonality to surface water temperature trends has been investigated, and an 8-day advancement in the average timing of ice break-up has been found to play a predominant role in the excess warming. The projected future alterations in lake ice phenology may further amplify the excess lake warming.
NATURE COMMUNICATIONS
(2022)
Article
Biodiversity Conservation
Wenjing Tao, Kangshan Mao, Jiang He, Nicholas G. Smith, Yuxin Qiao, Jing Guo, Hongjun Yang, Wenzhi Wang, Jianquan Liu, Lei Chen
Summary: This study utilized extensive data to investigate the influence of daytime and nighttime temperature asymmetry on tree growth. It found that daytime warming had a greater impact on drought stress, and tree growth was more sensitive to drought stress in warm regions.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Geosciences, Multidisciplinary
April S. Dalton, Evan J. Gowan, Jan Mangerud, Per Moeller, Juha P. Lunkka, Valery Astakhov
Summary: This study synthesizes sea-level proxies for the last interglacial period in the glaciated Northern Hemisphere and explores factors such as sea-level rise and glacial retreat. The results show that sea level during the last interglacial period was higher than at present, providing valuable insights for predicting future sea-level rise.
EARTH SYSTEM SCIENCE DATA
(2022)
Article
Multidisciplinary Sciences
Lingyun Meng, Jane Liu, David W. Tarasick, William J. Randel, Andrea K. Steiner, Hallgeir Wilhelmsen, Lei Wang, Leopold Haimberger
Summary: Studies have found that the tropopause height in the Northern Hemisphere has been continuously rising from 1980 to 2020, especially with a comparable trend after 2000 as seen in the previous two decades. This continuous rise is primarily attributed to tropospheric warming.
Editorial Material
Geosciences, Multidisciplinary
Sanzhong Li, M. Santosh, Yongjiang Liu, Shengyao Yu
Article
Geosciences, Multidisciplinary
K. S. Anoop, Y. Anilkumar, M. Santosh, Bing Yu, K. Delna Joy, K. Kavyanjali, Ajana Sathyan, Anjana Mathew, K. S. Sajinkumar
Summary: This study reports the presence of a layered intrusion at the northern margin of the Coorg Block and investigates its magmatic and metamorphic evolution, as well as the collisional event between the Coorg Block and the Dharwar Craton.
Article
Geosciences, Multidisciplinary
Mu. Ramkumar, K. Balasubramani, M. Santosh, R. Nagarajan
Summary: Plastic pollution has become a severe global environmental issue that requires urgent management and mitigation. Recent studies on plastic pollution have increased significantly, but there are inconsistencies and limitations in comparing and replicating data. This paper proposes an integrated classification approach to unify the different aspects of plastics and address some data-related issues.
Article
Geology
Chao Li, Lin Li, Sheng-Rong Li, M. Santosh, Jun-Feng Shen
Summary: This study investigates the geochemistry of hydrothermal zircon grains from a gold deposit in the Southern North China Craton (NCC), and identifies different types of hydrothermal zircons and their formation processes. The results of this study provide important insights into the evolution and ore-forming mechanisms of hydrothermal gold deposits.
ORE GEOLOGY REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Jun Hu, Wenwu Yang, Sanzhong Li, Yanyan Zhao, M. Santosh, Haijun Zhang, Chunhong Zhang, Juanjuan Tan, Xin Shao, Yingxiong Cai
Summary: This article describes the discovery of an early Neoproterozoic hematite-rich BIF in South China and reconstructs the depositional environment through the study of geochemical features and isotopic data. The findings suggest the existence of a shallow-water restricted epicontinental basin with exchange to the open-ocean, as well as riverine and hydrothermal input. The deposition of the Shilu BIF took place along the chemocline, with the abiotic oxidation of Fe2+ being the major means of Fe3+ precipitation.
PRECAMBRIAN RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
ZhongJie Shen, M. Santosh, Alireza Arabameri
Summary: Land subsidence is a challenging geo-hazard caused by overexploitation of groundwater and underground cavity collapse. Predicting and mitigating this hazard is difficult due to limitations in monitoring and knowledge. Remote sensing and GPS can help locate and map subsidence, but proper susceptibility maps are generally lacking. Machine learning techniques show promise in preparing these maps, and their application can help prevent natural and human catastrophes and reduce economic losses.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Jiahao Chen, Qingfei Wang, M. Santosh, Long Qiao, Tingyi Wang, Yanning Wang, Qizuan Zhang
Summary: Detrital zircon analysis and thermochronology were conducted to study the plate boundary dynamics and basin sedimentation in the southwestern South China Block. Results indicate different provenances and tectonic events during the Early and Middle Triassic, with the turbidite system being primarily controlled by Palaeo-Pacific subduction in the Early Triassic and experiencing the impact of both Palaeo-Pacific subduction and Indochina Block collision in the Middle Triassic.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Raja Sen, Dibyashakti Panda, Bhaskar Kundu, M. Santosh
Summary: Using data from geodetic measurements and tomography, we propose that the Narmada-Son palaeo-rift is a current diffuse plate boundary that divides the Indian composite plate into two component plates. The collision of the South-Indian plate with the Narmada-Son boundary acts as a pivot point, causing torque and mechanical rotation. Our model aligns with the estimated relative Euler pole positions and explains the Indian composite plate hypothesis, topographic diversity along the rift, and deformation styles across the diffuse plate boundary.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Hengxu Li, Zhaochong Zhang, Bingxiang Liu, Yilun Jin, M. Santosh
Summary: Multiple types of deposits can form from a single magmatic-hydrothermal system. Identification of the link among different styles of deposits is crucial for understanding the evolution of magmatic-hydrothermal systems and exploring for ore deposits.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Zheng Ji, Wen-Chun Ge, M. Santosh, Chuan-Biao Wan, Yan-Long Zhang, Jun-Hui Bi, Hao Yang, Yu Dong, Yan Jing
Summary: The closure of the Paleo-Asian Ocean along the Solonker Suture in the Central Asian Orogenic Belt is investigated. The rocks in the area show characteristics of subduction-related processes and partial melting of the mantle. The tectonic evolution of the region involves double-sided subduction, soft collision, and post-collisional extension.
GEOSCIENCE FRONTIERS
(2023)
Article
Geochemistry & Geophysics
Ruixuan Zhang, Zhiguo Cheng, Zhaochong Zhang, Zhen Chen, Richard Ernst, M. Santosh
Summary: This study applies machine learning methods to global datasets of basalts to investigate the role of fluids in the formation of large igneous provinces (LIPs). The results show that the basalts of Tarim LIP in northwestern China exhibit a spatial decrease in their island arc affinity from northeast to southwest, suggesting the influence of fluids released from earlier southward oceanic subduction. Temporally, the decline in fluid activity from 290 Ma basalts to 270 Ma mafic dykes indicates a decrease in fusible components in the mantle source and the generation of a strengthened lithosphere. This study provides new insights into the crucial role of fluids in LIP generation, particularly those associated with ancient subducted slabs.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geosciences, Multidisciplinary
Dingying Yang, Xi Jiang, Alireza Arabameri, M. Santosh, Johnbosco C. Egbueri
Summary: This study investigates the influence of sample size on the precision of landslide susceptibility modelling using a machine learning methodology. The researchers find that increasing the sample size improves the accuracy of the models and highlight the reliability of a multi-scenario strategy. The findings have important implications for land-use planning and catastrophe risk management.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Yang Wang, Yongfeng Gao, Shengchuan Xu, M. Santosh, Tianjia Jiao
Summary: The Chagan Obo shear zone in central Inner Mongolia is important for understanding the convergence between the North China-Mongolia and Siberia continents. Three deformation zones were identified within the shear zone, and their structural and kinematic characteristics were investigated. Shear indicators such as foliations, mica fish, sigma-type structures, and asymmetric folds suggest thrusting through compression. Muscovite ages indicate that the convergence lasted from Late Jurassic to Early Cretaceous. Shoshonitic volcanism and rift basins in the region indicate orogenic collapse in the eastern Central Asian Orogenic Belt.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Weidong Ren, Fan Yang, Zesheng Qian, Chao Liu, Xinyuan Li, M. Santosh, Fei Xue
Summary: The Shibaogou and Laojunshan plutons in the Luanchuan region, China, are high heat production granites linked to I-, A-, and partly S- type granitoids, aiding in the formation of associated polymetallic deposits. The RHP values of granitoids in the region vary from 1.7 to 14.44, with higher values correlated to higher magma differentiation. These high RHP value intrusions show genetic links with high economic deposits. The RHP contour mapping also identifies potential zones for Mo-W exploration.
GEOLOGICAL JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Han-Hui Wang, Li Tang, M. Santosh, Li-Hui Jia, Tao Zeng, Yuan-Ming Sheng
Summary: In this study, garnet amphibolites from the Wanzi Group in the Fuping Complex along the Trans-North China Orogen (TNCO) were investigated. Petrological features and phase equilibrium modelling revealed a sequential increase in pressure and temperature during the metamorphic process. Zircon U-Pb dating showed that the garnet amphibolites experienced a long-lived post-peak decompression and cooling process during 1.90-1.76 Ga, leading to the final assembly of the North China Craton.
GEOLOGICAL JOURNAL
(2023)
