Article
Geosciences, Multidisciplinary
Celia Martin-Puertas, Armand Hernandez, Eulogio Pardo-Iguzquiza, Laura Boyall, Chris Brierley, Zhiyi Jiang, Rik Tjallingii, Simon P. E. Blockley, Francisco Javier Rodriguez-Tovar
Summary: According to a lake-sediment record and model simulations, meltwater discharge in the mid-Holocene North Atlantic disrupted decadal climate variability, suggesting that future melting on Greenland may hinder climate predictability in the region.
Article
Meteorology & Atmospheric Sciences
Ivana Herceg-Bulic, Sara Ivasic, Margareta Popovic
Summary: This study analyzes the impact of tropical sea surface temperatures (SSTs) on the signal of geopotential heights (GH200) over the North Atlantic-European (NAE) region. The results show that in late winter, the association between ENSO events and geopotential heights is the strongest. The influences of individual tropical basins are also competitive. Additionally, the superposition effect of extratropical North Atlantic SSTs is demonstrated through the modulation of storm tracks. The ENSO signature in the North Atlantic is projected onto the East Atlantic pattern.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Liming Zhou, Wenjian Hua, Sharon E. Nicholson, Joseph P. Clark
Summary: The study demonstrates the impact of the North Atlantic Oscillation (NAO) on the interannual temperature variability in the Sahara Desert. The results reveal a strong negative correlation between Sahara temperatures and the NAO index, indicating a teleconnection pattern. The study also identifies the spatial-temporal and vertical characteristics of this pattern, highlighting the role of horizontal temperature advection and vertical heat transfer in realizing the NAO footprint.
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
Geosciences, Multidisciplinary
Andrew P. Ballinger, Andrew P. Schurer, Christopher H. O'Reilly, Gabriele C. Hegerl
Summary: Variability in the North Atlantic Oscillation (NAO) plays a crucial role in European climate trends, particularly in winter precipitation over Northern Europe. However, current climate models struggle to accurately capture the NAO's contribution to these trends, impacting the comparison between observed and modeled trends. By removing the variability associated with the NAO, the observed climate change aligns with model simulations and allows for a more precise and unbiased constraint for future projections.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Multidisciplinary Sciences
Yun Yang, Lixin Wu, Ying Guo, Bolan Gan, Wenju Cai, Gang Huang, Xichen Li, Tao Geng, Zhao Jing, Shujun Li, Xi Liang, Shang-Ping Xie
Summary: The variability of North Tropical Atlantic sea surface temperature, influenced by El Nino-Southern Oscillation and the North Atlantic Oscillation, may intensify under greenhouse warming, leading to increased occurrences of extreme events.
Article
Geosciences, Multidisciplinary
Bo Qu, Albert J. Gabric
Summary: This study analyzes the distribution of chlorophyll concentration, sea ice concentration, sea surface temperature, and North Atlantic Oscillation in the Arctic Ocean, and finds that chlorophyll concentration is higher in the southern Barents Sea and northern Greenland Sea. Additionally, increased ice melt in the northern Barents Sea during spring may lead to phytoplankton blooms.
JOURNAL OF MARINE SYSTEMS
(2022)
Article
Meteorology & Atmospheric Sciences
Peng Zhang, Zhiwei Wu, Rui Jin
Summary: The study found that the early summer precipitation variability in Northeast Asia is not fully understood, but may be related to the North Atlantic Oscillation and the Barents Sea ice cover. During negative NAO winters, anomalous northerlies increase local sea ice, leading to geopotential height anomalies that result in rich rainfall in southern NEA. Conversely, there may be reduced precipitation in northern NEA due to lower-level divergence.
Article
Geosciences, Multidisciplinary
Brady S. Ferster, Amelie Simon, Alexey Fedorov, Juliette Mignot, Eric Guilyardi
Summary: The study investigates the impact of Arctic sea ice loss on the Atlantic meridional overturning circulation (AMOC) and North Atlantic climate. The results show that the reduction in dense water formation led to a weakening of AMOC, which was later compensated by intensified dense water formation in the Western Subpolar North Atlantic. The wind-driven intensification of the subpolar gyre caused a depth-extended cold anomaly in the North Atlantic similar to the warming hole.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Seung H. Baek, Yochanan Kushnir, Mingfang Ting, Jason E. Smerdon, Juan M. Lora
Summary: This study reexamines the role of external forcing in Atlantic Multidecadal Variability (AMV) using large climate model ensembles. It demonstrates that greenhouse gases (GHGs) have little to no unique influence on North Atlantic, while industrial aerosols exert only modest influences as part of a broader loading over the Northern Hemisphere.
GEOPHYSICAL RESEARCH LETTERS
(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
Environmental Sciences
Lydia D. Sims, Bulusu Subrahmanyam, Corinne B. Trott
Summary: This study focuses on the extreme ecological impacts of Marine Heatwaves (MHWs) in the Northwest Atlantic over the past decade. By analyzing the relationships between Sea Surface Temperature anomalies (SSTA), Sea Surface Salinity anomalies (SSSA), North Atlantic Oscillation (NAO), Geopotential Height anomalies (ZA), and anomalous Jet Stream positions (JSPA), the study reveals significant temporal and spatial covariances between these parameters during MHW active years. Understanding these interplays is crucial for monitoring and predicting MHWs.
Article
Environmental Sciences
Fang Zhou, Ming-Hong Liu, Jian Shi, Meng-Yuan Zhao
Summary: This paper investigates the long-lasting impact of the winter North Atlantic Oscillation (NAO) on Arctic sea ice using reanalysis data. The study focuses on the Barents-Kara (BK) sea, where the air-sea-ice response is closely related to the interdecadal shift in the NAO's northern action center. The research finds a significant negative correlation between the winter NAO and late autumn BK sea ice since the early 2000s, in contrast to a weak correlation before the late 20th century. The paper explains that when the NAO's northern center retreats westward, it creates a low-level southerly wind anomaly that leads to positive air temperature anomalies and a reduction in sea ice in the BK sea until early spring. The study also finds that the warmed sea water sustains the negative sea ice anomaly until late autumn due to its large specific heat capacity.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Florian Le Pape, Christopher J. Bean
Summary: This study reveals the impact of ocean wave-wave interactions on the seismic wavefield generated offshore West of Ireland in the Northeast Atlantic. The variations observed are closely correlated with changing patterns in secondary microseism generation areas, potentially influenced by the North Atlantic Oscillation.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
Lucile Bonneau, Christophe Colin, Edwige Pons-Branchu, Furu Mienis, Nadine Tisnerat-Laborde, Dominique Blamart, Mary Elliot, Tim Collart, Norbert Frank, Lorna Foliot, Eric Douville
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2018)
Article
Geochemistry & Geophysics
Flora Toussaint, Nadine Tisnerat-Laborde, Cecile Cathalot, Roselyne Buscail, Philippe Kerherve, Christophe Rabouille
Article
Geochemistry & Geophysics
Ruifang Ma, Sophie Sepulcre, Laetitia Licari, Franck Bassinot, Zhifei Liu, Nadine Tisnerat-Laborde, Nejib Kallel, Zhaojie Yu, Christophe Colin
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2019)
Article
Geochemistry & Geophysics
Luigi Ferranti, Bruno Pace, Alessandro Valentini, Paolo Montagna, Edwige Pons-Branchu, Nadine Tisnerat-Laborde, Laura Maschio
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2019)
Article
Geosciences, Multidisciplinary
Ruifang Ma, Sophie Sepulcre, Franck Bassinot, Frederic Haurine, Nadine Tisnerat-Laborde, Christophe Colin
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Meryem Mojtahid, Magali Schweizer, Melanie Douarin, Justine Gabriel, Christophe Colin, Nadine Tisnerat-Laborde, Mary Elliot
Summary: Benthic foraminiferal assemblage data from a marine sediment core off northwest Scotland have provided insights into paleoenvironmental changes since the last glacial period and the environmental conditions that influenced the onset, formation, and decline of cold-water corals in the area. The study identified three distinct foraminiferal assemblages associated with different time intervals, indicating shifts in ecological conditions and water properties that allowed for the settlement of cold-water corals around 9,000 years ago. The presence of specific foraminiferal species also suggested varying contributions of water masses from the Eastern North Atlantic, influencing food export efficiency to the seafloor.
Article
Ecology
Mohamed Ayache, Jean-Claude Dutay, Anne Mouchet, Nadine Tisnerat-Laborde, Paolo Montagna, Toste Tanhua, Giuseppe Siani, Philippe Jean-Baptiste
Article
Anthropology
Christophe Sand, Helene Valladas, Helene Cachier, Nadine Tisnerat-Laborde, Maurice Arnold, Jacques Bole, Andre Ouetcho
Article
Meteorology & Atmospheric Sciences
RH Zhang, R Kleeman, SE Zebiak, N Keenlyside, S Raynaud
JOURNAL OF CLIMATE
(2005)
Article
Multidisciplinary Sciences
T Goslar, M Arnold, N Tisnerat-Laborde, J Czernik, K Wieckowski
Article
Geosciences, Multidisciplinary
S Raynaud, P Yiou, R Kleeman, S Speich
NONLINEAR PROCESSES IN GEOPHYSICS
(2005)
Article
Geochemistry & Geophysics
N Tisnerat-Laborde, H Valladas, E Kaltnecker, M Arnold
Article
Geochemistry & Geophysics
T Goslar, N Tisnerat-Laborde, M Paterne