Article
Meteorology & Atmospheric Sciences
Ya Wang, Gang Huang, Kaiming Hu, Weichen Tao, Xichen Li, Hainan Gong, Letian Gu, Wenqi Zhang
Summary: This study systematically investigates the asymmetry of ENSO teleconnection in the Southern Hemisphere and the mechanisms involved. The results show that the impact of ENSO on subtropical circulation anomalies depends on the movement of the STJ exit, which affects the development region of wave trains.
JOURNAL OF CLIMATE
(2022)
Article
Multidisciplinary Sciences
Nicholas T. Hitt, Daniel J. Sinclair, Helen L. Neil, Stewart J. Fallon, Aimee Komugabe-Dixson, Denise Fernandez, Philip J. Sutton, John C. Hellstrom
Summary: Using a high-resolution paleocirculation archive, this study found a correlation between the South Pacific Gyre (SPG) and the Southern Annular Mode (SAM), resulting in transport changes of subtropical waters during specific periods. By reconstructing several gyre intensification cycles, it revealed the natural co-variability of gyre strength and SAM on anthropogenic timescales, which is important for future climate projections.
SCIENTIFIC REPORTS
(2022)
Article
Geochemistry & Geophysics
K. L. Johnson, M. Pagani, R. H. Styron
Summary: The southern Pacific Islands region is highly seismically active, with a probabilistic seismic hazard model presented that covers the area comprehensively. The model considers various seismic sources, with occurrence rates based on tectonic contexts, and reveals that the most hazardous areas are island chains near subduction trenches and regions with high rates of shallow crustal seismicity.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2021)
Article
Meteorology & Atmospheric Sciences
Abdullah A. Fahad, Natalie J. Burls, Erik T. Swenson, David M. Straus
Summary: Subtropical anticyclones and midlatitude storm tracks play key roles in the large-scale atmospheric circulation. In the Southern Hemisphere, the seasonality of subtropical anticyclones over the South Pacific, South Atlantic, and south Indian Ocean basins has significant impacts on local weather and climate. The study investigates the strength of the South Pacific subtropical anticyclone in austral summer, attributing it to heating over the South Pacific convergence zone triggering a propagating Rossby wave train.
JOURNAL OF CLIMATE
(2021)
Article
Environmental Sciences
Chengcheng Shen, Hong Cheng, Dongsheng Zhang, Chunsheng Wang
Summary: Hexactinellid sponges play a key role in providing structural habitats for other organisms, resulting in high biodiversity. This study discovered two new species of hexactinellid sponges and described their morphological characteristics. Molecular phylogenetic analysis supported their classification. Further sampling efforts are needed to enhance the understanding of deep-sea seamount sponge biodiversity.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Nicolas Pala, Begona Jimenez, Jose L. Roscales, Marco Bertolino, Davide Baroni, Blanca Figuerola, Conxita Avila, Simonetta Corsolini
Summary: Antarctic benthic organisms, especially sponges, have been found to bioaccumulate persistent organic pollutants (POPs). However, the role and contamination levels of sponges in Antarctica have been largely overlooked. This study evaluated the bioaccumulation of legacy chlorinated POPs in 35 sponge samples from different locations in Antarctica. The results showed that the overall contamination levels were comparable to other Antarctic benthic organisms, and the predominant contaminants were lower chlorinated organochlorines, indicating long-range atmospheric transportation as the main contamination pathway.
ENVIRONMENTAL POLLUTION
(2023)
Article
Meteorology & Atmospheric Sciences
Solange Suli, David Barriopedro, Ricardo Garcia-Herrera, Matilde Rusticucci
Summary: This study describes the climatological characteristics of regional heat waves (HWs) over southern South America (SSA) for the warm seasons of 1979-2018. It identifies regional HW events in five homogeneous regions based on clustering of stations with high co-occurrence of simultaneous HW days. The analysis reveals differences in duration, intensity, and extension of HWs among the regions, with the southernmost region exhibiting the most severe HWs. Long-term assessments indicate significant increases in the frequency of regional HW days over central Argentina and central Chile, and the severity of HWs has increased only in the southernmost region.
WEATHER AND CLIMATE EXTREMES
(2023)
Article
Oceanography
R. L. Beadling, J. P. Krasting, S. M. Griffies, W. J. Hurlin, B. Bronselaer, J. L. Russell, G. A. MacGilchrist, J. -E. Tesdal, M. Winton
Summary: This study uses two coupled climate models to investigate the physical response of the Southern Ocean to changes in surface wind stress and Antarctic meltwater. The results demonstrate the strong influence of Antarctic meltwater on governing changes in the Antarctic shelf, with the Antarctic Slope Current playing a crucial role in these dynamics.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Meteorology & Atmospheric Sciences
Wenxiu Zhong, Wenju Cai, Arnold Sullivan, Wansuo Duan, Song Yang
Summary: This article investigates the combined effects of the North Pacific Oscillation (NPO) and the South Pacific Oscillation (SPO) on the interannual wind in the western-central equatorial Pacific (WCEP). The NPO influences the WCEP interannual wind during the boreal winter-spring by modulating the Northwestern Pacific Intertropical Convergence Zone (NITCZ). As austral winter approaches, the SPO takes over this role and maintains the anomalous NITCZ. The NPO benefits long-lead prediction of the WCEP interannual wind and El Niño-Southern Oscillation (ENSO), while the SPO is the dominant extratropical predictor of ENSO amplitude.
JOURNAL OF CLIMATE
(2023)
Article
Multidisciplinary Sciences
Tao Geng, Wenju Cai, Lixin Wu, Agus Santoso, Guojian Wang, Zhao Jing, Bolan Gan, Yun Yang, Shujun Li, Shengpeng Wang, Zhaohui Chen, Michael J. McPhaden
Summary: This study finds that the increased variability of El Nino sea surface temperature under global warming may emerge earlier than previously anticipated, and it is likely to first occur in the eastern Pacific region.
NATURE COMMUNICATIONS
(2022)
Article
Meteorology & Atmospheric Sciences
Yue Dong, Kyle C. Armour, David S. Battisti, Edward Blanchard-Wrigglesworth
Summary: Despite global warming, both the tropical eastern Pacific Ocean and the Southern Ocean have experienced surface cooling over the past 40 years. This cooling has had an impact on regional climates and estimations of Earth's climate sensitivity to rising greenhouse gases. The study demonstrates that the southeast Pacific sector of the Southern Ocean has a strong influence on the tropical eastern Pacific, showing a two-way teleconnection between the two through atmospheric circulations. These findings highlight the potential impacts of extratropical climate changes on the tropics.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Channing J. Prend, Alison R. Gray, Lynne D. Talley, Sarah T. Gille, F. Alexander Haumann, Kenneth S. Johnson, Stephen C. Riser, Isabella Rosso, Jade Sauve, Jorge L. Sarmiento
Summary: The Southern Ocean plays a crucial role in modulating the climate system through exchanging heat and carbon dioxide between the atmosphere and deep ocean. This study examines the air-sea CO2 fluxes in the Southern Ocean and the mechanisms by which carbon is transferred from the ocean interior to the mixed layer. The results suggest that carbon outgassing occurs mainly in the Indo-Pacific sector of the Antarctic Circumpolar Current due to variations in the surface ocean partial pressure of CO2.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Meteorology & Atmospheric Sciences
Takamitsu Ito
Summary: This study develops a new regional model of the Southern Ocean that accurately simulates the partial pressure of carbon dioxide and net primary production. The model performs well on seasonal to interannual timescales and is validated against observational data.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
Article
Chemistry, Analytical
Miming Zhang, Christa A. Marandino, Jinpei Yan, Qi Lin, Keyhong Park, Guojie Xu
Summary: This study investigates the sea-to-air flux of DMS in the Southern Ocean, southeast Indian Ocean, and northwest Pacific Ocean, and its impact on sulfate aerosols. Two large-scale DMS sources were found in the marginal sea ice zone and South Subtropical Front. Inconsistencies between atmospheric sulfate compounds and DMS emissions along the cruise track were attributed to horizontal advection of air masses.
ENVIRONMENTAL CHEMISTRY
(2021)
Article
Geosciences, Multidisciplinary
Denise Fernandez, Melissa Bowen, Philip Sutton
Summary: The wind-driven baroclinic Rossby waves play a fundamental role in the correlation between global ocean surface temperatures and ocean heat content. These waves contribute to the adjustment of ocean circulation and modulate the air-sea heat flux at mid-latitudes. This study finds that the Rossby waves crossing the South Pacific at 35 degrees S can explain up to 70% of the interannual variance of the heat flux, contributing to the increase in heat in the central Pacific.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Marine & Freshwater Biology
Cristiana Castello-Branco, Jon Thomassen Hestetun, Hans Tore Rapp, Eduardo Hajdu
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
(2016)
Review
Zoology
Fernanda Azevedo, Baslavi Condor-Lujan, Philippe Willenz, Eduardo Hajdu, Yuri Hooker, Michelle Klautau
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2015)
Article
Zoology
Eduardo Hajdu, Yuri Hooker, Philippe Willenz
Article
Zoology
Ulisses Pinheiro, Ludimila Calheira, Eduardo Hajdu
Letter
Zoology
Thayna Cavalcanti, George Garcia Santos, Eduardo Hajdu, Ulisses Pinheiro
Article
Zoology
George Garcia Santos, Ulisses Pinheiro, Eduardo Hajdu, Rob Van Soest
Article
Zoology
Julio C. C. Fernandez, Cesar A. Cardenas, Alejandro Bravo, Gisele Lobo-Hajdu, Philippe Willenz, Eduardo Hajdu
Article
Zoology
Dalton S. Amorim, Charles Morphy D. Santos, Frank-Thorsten Krell, Alain Dubois, Silvio S. Nihei, Otto M. P. Oliveira, Adrian Pont, Hojun Song, Vanessa K. Verdade, Diego A. Fachin, Bruna Klassa, Carlos Jose E. Lamas, Sarah S. Oliveira, Claudio J. B. De Carvalho, Catia A. Mello-Patiu, Eduardo Hajdu, Marcia S. Couri, Vera C. Silva, Renato S. Capellari, Rafaela L. Falaschi, Rodrigo M. Feitosa, Lorenzo Prendini, Jose P. Pombal, Fernando Fernandez, Rosana M. Rocha, John E. Lattke, Ulisses Caramaschi, Marcelo Duarte, Antonio Carlos Marques, Roberto E. Reis, Olavi Kurina, Daniela M. Takiya, Marcos Tavares, Daniel Silva Fernandes, Francisco Luis Franco, Fabiana Cuezzo, Dennis Paulson, Benoit Guenard, Birgit C. Schlick-Steiner, Wolfgang Arthofer, Florian M. Steiner, Brian L. Fisher, Robert A. Johnson, Thibaut Dominique Delsinne, David A. Donoso, Pablo Ricardo Mulieri, Luciano Damian Patitucci, James M. Carpenter, Lee Herman, David Grimaldi
Article
Multidisciplinary Sciences
Rodrigo L. Moura, Gilberto M. Amado-Filho, Fernando C. Moraes, Poliana S. Brasileiro, Paulo S. Salomon, Michel M. Mahiques, Alex C. Bastos, Marcelo G. Almeida, Jomar M. Silva, Beatriz F. Araujo, Frederico P. Brito, Thiago P. Rangel, Braulio C. V. Oliveira, Ricardo G. Bahia, Rodolfo P. Paranhos, Rodolfo J. S. Dias, Eduardo Siegle, Alberto G. Figueiredo, Renato C. Pereira, Camille V. Leal, Eduardo Hajdu, Nils E. Asp, Gustavo B. Gregoracci, Sigrid Neumann-Leitao, Patricia L. Yager, Ronaldo B. Francini-Filho, Adriana Froes, Mariana Campeao, Bruno S. Silva, Ana P. B. Moreira, Louisi Oliveira, Ana C. Soares, Lais Araujo, Nara L. Oliveira, Joao B. Teixeira, Rogerio A. B. Valle, Cristiane C. Thompson, Carlos E. Rezende, Fabiano L. Thompson
Article
Marine & Freshwater Biology
C. Goecke, E. Hajdu, D. Janussen
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
(2016)
Article
Marine & Freshwater Biology
Andre Bispo, Monica Dorigo Correia, Eduardo Hajdu
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
(2016)
Article
Multidisciplinary Sciences
Susana Rodriguez-Marconi, Rodrigo De la Iglesia, Beatriz Diez, Cassio A. Fonseca, Eduardo Hajdu, Nicole Trefault
Article
Ecology
Cesar A. Cardenas, Emma M. Newcombe, Eduardo Hajdu, Marcelo Gonzalez-Aravena, Shane W. Geange, James J. Bell
Article
Zoology
Dora M. B. Leite, Cassio A. Fonseca, Camille V. Leal, Eduardo Hajdu
Meeting Abstract
Plant Sciences
R. G. S. Berlinck, L. L. L. Parra, E. Hajdu, A. G. Ferreira, A. G. Tempone
