Article
Meteorology & Atmospheric Sciences
Qihua Peng, Shang -ping Xie, Rui Xin Huang, Weiqiang Wang, Tingting ZU, Dongxiao Wang
Summary: This study reveals that the slowdown of the Indonesian Throughflow (ITF) under anthropogenic warming is mainly caused by remote anomalous buoyancy forcing in the North Atlantic Ocean. Surface freshening and warming in the North Atlantic Ocean slow down the Atlantic meridional overturning circulation (AMOC), leading to a reduction in ITF transport.
JOURNAL OF CLIMATE
(2023)
Article
Geosciences, Multidisciplinary
Kay McMonigal, Sarah Larson, Shineng Hu, Ryan Kramer
Summary: Mitigation and adaptation strategies for climate change depend on accurate climate projections for the coming decades. Changes to wind-driven ocean circulation amplify the rate of global surface warming by 17% from 1979 to 2014, in addition to the known contribution of radiative heat fluxes. Accurately simulating changes to the atmospheric circulation is key to improving near-term climate projections.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Editorial Material
Environmental Sciences
Xianyao Chen, Ka-Kit Tung
Summary: The recent article by CRF in Environmental Research Letters criticizes our Nature paper, claiming that our findings were based on incorrect models and methods. Despite their assertion of a positive correlation between global warming and AMOC, the actual data does not support this claim.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Editorial Material
Multidisciplinary Sciences
Jerome Nriagu
Summary: The 1963 discovery of lead contamination in the vast oceans from car exhausts led to debate and policy changes, greatly benefiting public health and revolutionizing marine biogeochemistry practices.
Article
Environmental Sciences
Ellen Vlaminck, Tom Moens, Ulrike Braeckman, Carl Van Colen
Summary: This study investigates the stimulating effects of ocean acidification and warming on the two key species (Abra alba and Lanice conchilega) and finds that they have different impacts on sediment biogeochemical cycling when environmental conditions change.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Haidi Chen, F. Alexander Haumann, Lynne D. Talley, Kenneth S. Johnson, Jorge L. Sarmiento
Summary: The deep ocean releases large amounts of pre-industrial carbon dioxide to the atmosphere through upwelling in the Southern Ocean, which affects global climate and the ability of the Southern Ocean to absorb anthropogenic CO2. The release of CO2 is mainly concentrated in a band of upwelling waters between the Subantarctic Front and the wintertime sea-ice edge. The carbon chemistry in the subsurface waters is influenced by organic carbon remineralization and dissolution profiles, which have implications for the response of Southern Ocean CO2 fluxes to future changes in upwelling.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Oceanography
Yu Hong, Ying Zhang, Yan Du
Summary: The Southern Ocean is an important region for absorbing and storing anthropogenic heat. This study focuses on the south Indian Ocean and finds distinct warming minimum/cooling and freshening in the subtropical ocean thermocline. The freshening anomaly is advected to the north and subducted into the ocean interior, leading to fresher, deeper, and cooler isopycnal surfaces. This has implications for the future heat storage in the Southern Ocean.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Editorial Material
Environmental Sciences
L. Caesar, S. Rahmstorf, G. Feulner
Summary: The comment on the paper argues that the analysis showing a positive correlation between Atlantic meridional overturning circulation (AMOC) strength and global mean surface temperature (GMST) over the last decades is incorrect, based on two points which are not justified. However, the authors defend their analysis with evidence from the modern period and multiple cycles of data.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Microbiology
Ting Cai, Yuanyuan Feng, Yanan Wang, Tongtong Li, Jiancai Wang, Wei Li, Weihua Zhou
Summary: This study investigates the species-specific responses of marine diatoms to future ocean acidification and warming. The results show that temperature changes play a more important role in regulating the physiology of certain diatom species, while CO2 has significant effects on growth rate and elemental compositions. The interaction between OA and warming mostly shows antagonistic effects on diatom physiology.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Environmental Sciences
Cecile S. Rousseaux, Watson W. Gregg, Lesley Ott
Summary: While forecasts for atmospheric variables and ocean circulation are common, predictions for biogeochemical conditions are still developing. This study demonstrates the potential for skillful global biogeochemical forecasts of chlorophyll, primary production, and harmful algal blooms on a seasonal timescale, with results showing significant accuracy in most regions.
Article
Environmental Sciences
D. Konig, T. M. Conway, M. J. Ellwood, W. B. Homoky, A. Tagliabue
Summary: Iron isotopes in the ocean are crucial in studying the iron cycle, but the complexity of various external sources and fractionation processes can complicate the interpretation of observations. By incorporating iron isotopes into a global ocean biogeochemical model, research finds that distinct external source endmembers and isotopic fractionation are essential for explaining the distribution of dissolved iron isotopes, with the water column's δFe-56(diss) distribution influenced by regional imbalance of remineralization and abiotic removal processes.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Biotechnology & Applied Microbiology
Craig J. Dedman, Samuel Barton, Marjorie Fournier, Rosalind E. M. Rickaby
Summary: Marine cyanobacteria, major contributors to the oceanic carbon sink, undergo significant proteomic alterations in major nutrient metabolism pathways in response to temperature changes. As seawater temperatures rise, the composition and nutrient demands of cyanobacteria are likely to be altered, impacting their contribution to oceanic biogeochemical cycling.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Environmental Sciences
Xiaodan Guan, Zhaokui Gao, Jianping Huang, Chenyu Cao, Kaiwei Zhu, Jiamin Wang
Summary: Regional anthropogenic warming caused stronger and shorter cold events during the winter of 2020-21, particularly in East Asia. Unlike previous cold events, these extreme cold events were a result of meridional circulation changes due to anthropogenic warming. The study highlights the significant role of anthropogenic factors in cold events.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Oceanography
Rishav Goyal, Matthew H. England, Martin Jucker, Alex Sen Gupta
Summary: This study highlights the significant impact of zonally asymmetric atmospheric changes on future ocean warming and circulation changes in subtropical western boundary current regions, explaining a substantial portion of sea surface temperature warming in the Tasman Sea, southern Australia, and the Agulhas Current region. The warming trends in the Indian and Pacific basins are primarily driven by the advection of warm tropical water towards the mid-latitudes due to changes in large-scale subtropical ocean gyres, influenced by changes in mid-latitude surface wind stress patterns.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Ecology
Damien Couespel, Marina Levy, Laurent Bopp
Summary: Research indicates that global warming will result in a significant decline in ocean primary production. While the simulations show that the impact of eddy parameters is minimal, at the highest resolution, the decline in primary production in subpolar gyres is reduced by half.
Article
Oceanography
Daniel B. Whitt, John R. Taylor
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2017)
Article
Oceanography
Daniel B. Whitt, John R. Taylor
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2018)
Article
Oceanography
Daniel B. Whitt, Leif N. Thomas, Jody M. Klymak, Craig M. Lee, Eric A. D'Asaro
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2018)
Article
Oceanography
D. B. Whitt, M. Levy, J. R. Taylor
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Oceanography
D. B. Whitt, S. A. Nicholson, M. M. Carranza
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Meteorology & Atmospheric Sciences
R. Justin Small, Alice K. DuVivier, Daniel B. Whitt, Matthew C. Long, Ian Grooms, William G. Large
Summary: A shallow mixed layer depth bias in the Subantarctic Zone during winter is linked to errors in simulated ocean circulation, with high-resolution and semi-prognostic experiments showing significant improvement in horizontal advection of water masses and air-sea feedbacks leading to more realistic sea surface temperature and salinity fronts.
Article
Oceanography
Clifford Watkins, Daniel B. Whitt
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2020)
Article
Oceanography
D. A. Cherian, D. B. Whitt, R. M. Holmes, R-C Lien, S. D. Bachman, W. G. Large
Summary: The study shows that deep-cycle turbulence occurs both on and off the equator in the cold tongue region, modulated by tropical instability waves. Further observational campaigns are needed to characterize the modulation of deep-cycle turbulence by TIWs both on and off the equator.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2021)
Article
Oceanography
K. J. Richards, D. B. Whitt, G. Brett, F. O. Bryan, K. Feloy, M. C. Long
Summary: The study suggests that global warming may lead to significant reductions in submesoscale activity in the ocean in the future with a decrease in mixed layer depth (MLD), resulting in a decrease in kinetic energy (KE) at the mesoscale and vertical buoyancy flux. Additionally, increased parameterized lateral mixing in the model may further suppress submesoscale activity, leading to larger reductions in winter MLDs due to climate change.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Multidisciplinary Sciences
Sarah-Anne Nicholson, Daniel B. Whitt, Ilker Fer, Marcel D. du Plessis, Alice D. Lebehot, Sebastiaan Swart, Adrienne J. Sutton, Pedro M. S. Monteiro
Summary: The study reveals that the Southern Ocean's subpolar region, particularly affected by synoptic storm-driven ocean variability, plays a significant role in CO2 outgassing. The Ekman transport and entrainment processes are identified as the main factors affecting the variability of air-sea CO2 exchange. The findings provide insights into the influence of synoptic variability on ocean carbon dynamics.
NATURE COMMUNICATIONS
(2022)
Article
Meteorology & Atmospheric Sciences
Dallas Foster, David John Gagne, Daniel B. Whitt
Summary: The study demonstrates that utilizing machine learning methods and satellite data can effectively improve the accuracy of estimating mixed layer depth (MLD) variability, especially at smaller scales. By constructing different machine learning architectures and combining various traditional and probabilistic machine learning techniques, more accurate and reliably estimated MLD anomaly fields can be generated.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2021)
Article
Oceanography
Y. A. Eddebbar, A. C. Subramanian, D. B. Whitt, M. C. Long, A. Verdy, M. R. Mazloff, M. A. Merrifield
Summary: Tropical instability vortices (TIVs) have significant impacts on the three-dimensional structure and variability of dissolved oxygen in the upper equatorial Pacific water column. The effects of TIVs on equatorial Pacific oxygen balance are mainly dominated by eddy-advection and mixing, while indirect effects on oxygen consumption play a minor role. Eddies influence oxygen distributions and variability through transient displacements of isopycnals and transport of oxygen through eddy trapping, stirring, and subduction.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
Dustin Carroll, Dimitris Menemenlis, Stephanie Dutkiewicz, Jonathan M. Lauderdale, Jess F. Adkins, Kevin W. Bowman, Holger Brix, Ian Fenty, Michelle M. Gierach, Chris Hill, Oliver Jahn, Peter Landschuetzer, Manfredi Manizza, Matt R. Mazloff, Charles E. Miller, David S. Schimel, Ariane Verdy, Daniel B. Whitt, Hong Zhang
Summary: The inventory and variability of oceanic dissolved inorganic carbon (DIC) are influenced by physical, chemical, and biological processes. Understanding the spatiotemporal variability of these processes is crucial for understanding the ocean carbon sink and its future trajectory.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Ecology
Genevieve Jay Brett, Daniel B. Whitt, Matthew C. Long, Frank Bryan, Kate Feloy, Kelvin J. Richards
Summary: This study quantifies and interprets the sensitivity of projected changes in new production in an idealized global ocean biogeochemistry model. The research finds that new production declines with global warming, but the dependencies of light and nutrients on nutrient uptake are sensitive factors. Shorter biological timescales are associated with greater global annual new production and higher nutrient utilization, as well as greater declines in global new production in a warmer climate and greater sensitivity to changes in nutrients than light. Further work is needed to explore the implications of climate change on more complex ocean biogeochemical models.