Article
Meteorology & Atmospheric Sciences
Zhen Lv, Jun-Chao Yang, Xiaopei Lin, Yu Zhang
Summary: This study suggests that the North Atlantic forcing plays a more significant role than the tropical Pacific forcing in the decadal prediction of sea surface temperature (SST) variability in the North Pacific. By removing the North Atlantic forcing, the prediction skill of NP SST decreases, indicating its strong contribution to the long-term prediction. The research emphasizes the need for improving the simulation of the Atlantic trans-basin effect for better predicting NP climate.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Jin-Sil Hong, Sang-Wook Yeh, Young-Min Yang
Summary: The authors investigated the interbasin interactions between the Pacific and Atlantic Oceans based on the phase relationship of Pacific decadal oscillation (PDO)/Atlantic multidecadal oscillation (AMO). They found that the characteristics of the interactions depend on whether the PDO and AMO phases are in phase or out of phase.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Qinxue Gu, Melissa Gervais
Summary: Decadal climate prediction can provide valuable information for decision-making, and this study explores using self-organizing maps (SOMs) to identify decadal climate variability and conduct predictions. The study found that the North Atlantic has higher predictability at longer lead times than the North Pacific in terms of sea surface temperature patterns.
JOURNAL OF CLIMATE
(2021)
Article
Environmental Sciences
Elise S. Droste, Alex R. Baker, Chan Yodle, Andrew Smith, Laurens Ganzeveld
Summary: Iodine plays a significant role in the radiative budget and oxidative capacity of the atmosphere, with a portion of it ending up in aerosols where it contributes to the destruction of ozone. Research on aerosol samples collected from various ocean regions showed a consistent proportion of different iodine species, with iodate reduction attributed to aerosol acidity and anthropogenic emissions. The data contributes to the understanding of aerosol iodine speciation and the complex composition of organic iodine in aerosols.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Shaoyu Zhang, Yimin Liu, Buwen Dong, Chen Sheng
Summary: This study identifies the relationship between tropical southern Atlantic sea surface temperature anomaly and the El Nino-Southern Oscillation, and focuses on how the Pacific Decadal Oscillation modulates this relationship. The results show a significant but non-stationary interannual relationship, which undergoes a significant decadal shift. The study also proposes two processes to explain this decadal shift.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Lei Zhang, Gang Wang, Matthew Newman, Weiqing Han
Summary: This study analyzes sea surface temperature variability in the Indian Ocean, focusing on both internal processes and external influences from the Pacific. Results show that internally generated SST variability in the Indian Ocean is comparable to that forced by ENSO, indicating that the Indian Ocean actively influences the tropical Pacific.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Rajashree Naha, Shayne Mcgregor, Martin Singh
Summary: Recent analysis suggests that the influence of the tropical Atlantic Ocean on the tropical Pacific Ocean has become more pronounced after 1980, while the influence of the tropical Indian Ocean appears to have weakened. This study explores the modulation of these pantropical connections by decadal changes in the tropical Atlantic and Pacific Ocean sea surface temperatures (SSTs), and investigates the role of changes in Pacific decadal variability (PDV).
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Fangyu Liu, Wenjun Zhang, Fei-Fei Jin, Suqiong Hu
Summary: Previous studies have shown that Indian Ocean basin warming typically occurs during the decaying spring to summer seasons of ENSO, impacting the equatorial zonal circulation. This study further investigates decadal modulation associated with the IPO to understand the nonstationary ENSO-IOBW relationship during ENSO decaying summer. The IPO modulation of the ENSO-IOBW relationship has important implications for the seasonal prediction of Indian Ocean SST anomalies and associated summer climate anomalies.
JOURNAL OF CLIMATE
(2021)
Article
Geosciences, Multidisciplinary
Mengjiao Qin, Linshu Hu, Zhuoya Qin, Lin Wan, Lianjie Qin, Wenting Cao, Sensen Wu, Zhenhong Du
Summary: In this paper, a deep spatiotemporal embedding network (DSEN) is proposed to accurately predict the Pacific decadal oscillation (PDO) index. The model outperforms six benchmark methods and can skillfully predict the PDO index up to 1 year, based on 39 years of test data (1982-2020).
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Shaohua Chen, Haikun Zhao, Philp J. Klotzbach, Graciela B. Raga, Jian Cao, Chao Wang
Summary: This study reveals distinct decadal regimes in the impact of transbasin variability (TBV) on tropical cyclone frequency (TCF) over the Western North Pacific, Central-Eastern North Pacific, and North Atlantic basins. Changes in the interannual relationship between TBV and TCF are observed over different time periods, likely influenced by large-scale parameters. The interactions between ENSO and the Pacific decadal oscillation are believed to play a role in these observed decadal changes.
JOURNAL OF CLIMATE
(2021)
Article
Geosciences, Multidisciplinary
Mengjiao Qin, Zhenhong Du, Linshu Hu, Wenting Cao, Zhiyi Fu, Lianjie Qin, Sensen Wu, Feng Zhang
Summary: This paper presents a novel seasonal gated recurrent unit (SGRU) model based on deep learning for forecasting the Pacific decadal oscillation (PDO) at multiple time scales. The SGRU model demonstrates superior performance compared to other models in PDO forecasting and is capable of producing high-performance forecasts at multiple time scales.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Oceanography
Kathryn L. Gunn, K. McMonigal, Lisa M. Beal, Shane Elipot
Summary: The global freshwater cycle is intensifying, especially in Indian Ocean rim countries. However, due to the lack of observations and model biases, it is still uncertain how the Indian Ocean's freshwater cycle has responded to climate change and its variability at different time scales. This study estimates the magnitude and variability of the Indian Ocean's freshwater budget using monthly oceanic data from 2016 to 2018. The findings suggest that the Indian Ocean has remained net evaporative since the 1980s and shows seasonal and monthly variability.
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2022)
Article
Geosciences, Multidisciplinary
Gerald A. Meehl, Aixue Hu, Frederic Castruccio, Matthew H. England, Susan C. Bates, Gokhan Danabasoglu, Shayne McGregor, Julie M. Arblaster, Shang-Ping Xie, Nan Rosenbloom
Summary: Model experiments show a weak opposite-sign SST response in the tropical Pacific when observed SSTs are specified in the Atlantic, and a weak same-sign response in the tropical Atlantic when observed SSTs are specified in the tropical Pacific. Net surface heat flux in the Atlantic and ocean dynamics in the Pacific play contrasting roles in the ocean response to specified SSTs in the respective basins. Processes in the Pacific and Atlantic are sequentially interactive through the atmospheric Walker circulation for the Atlantic response to the Pacific, with contributions from midlatitude teleconnections.
Review
Geochemistry & Geophysics
E. Di Lorenzo, T. Xu, Y. Zhao, M. Newman, A. Capotondi, S. Stevenson, D. J. Amaya, B. T. Anderson, R. Ding, J. C. Furtado, Y. Joh, G. Liguori, J. Lou, A. J. Miller, G. Navarra, N. Schneider, D. J. Vimont, S. Wu, H. Zhang
Summary: The modes of Pacific decadal-scale variability (PDV) represent the integration of atmospheric forcing by the ocean, resulting from shifts and changes in the climatological atmospheric circulation. Past analysis shows that PDV is driven by two fundamental low-frequency dynamical eigenmodes: the North Pacific-central Pacific (NP-CP) and Kuroshio-Oyashio Extension (KOE) modes. These modes highlight the importance of tropical-extratropical teleconnections in energizing and synchronizing PDV at the basin scale.
ANNUAL REVIEW OF MARINE SCIENCE
(2023)
Review
Environmental Sciences
Antonietta Capotondi, Shayne McGregor, Michael J. McPhaden, Sophie Cravatte, Neil J. Holbrook, Yukiko Imada, Sara C. Sanchez, Janet Sprintall, Malte F. Stuecker, Caroline C. Ummenhofer, Mathias Zeller, Riccardo Farneti, Giorgio Graffino, Shijian Hu, Kristopher B. Karnauskas, Yu Kosaka, Fred Kucharski, Michael Mayer, Bo Qiu, Agus Santoso, Andrea S. Taschetto, Fan Wang, Xuebin Zhang, Ryan M. Holmes, Jing-Jia Luo, Nicola Maher, Cristian Martinez-Villalobos, Gerald A. Meehl, Rajashree Naha, Niklas Schneider, Samantha Stevenson, Arnold Sullivan, Peter van Rensch, Tongtong Xu
Summary: In this Review, the mechanisms and characteristics of tropical Pacific decadal variability (TPDV) are synthesized, including oceanic processes and atmospheric processes. Oceanic processes involve Rossby waves, upper-ocean overturning circulation, and salinity-compensated temperature anomalies, while atmospheric processes involve internal variability and atmospheric teleconnections. The tropical adjustment mechanism is likely the dominant mechanism, but the origin and spectral characteristics of TPDV-related winds remain uncertain.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Geochemistry & Geophysics
Wilford D. Gardner, Mary Jo Richardson, Alexey V. Mishonov
EARTH AND PLANETARY SCIENCE LETTERS
(2018)
Article
Oceanography
Wilford D. Gardner, Mary Jo Richardson, Alexey Mishonov, Pierre E. Biscaye
PROGRESS IN OCEANOGRAPHY
(2018)
Article
Oceanography
Dan Seidov, Alexey Mishonov, James Reagan, Rost Parsons
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Multidisciplinary Sciences
Dan Seidov, Alexey Mishonov, James Reagan, Rost Parsons
SCIENTIFIC REPORTS
(2019)
Article
Geochemistry & Geophysics
Seth G. John, Hengdi Liang, Tom Weber, Tim DeVries, Francois Primeau, Keith Moore, Mark Holzer, Natalie Mahowald, Wilford Gardner, Alexey Mishonov, Mary Jo Richardson, Yannice Faugere, Guillaume Taburet
Article
Oceanography
Paul Lerner, Olivier Marchal, Phoebe J. Lam, Wilford Gardner, Mary Jo Richardson, Alexey Mishonov
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2020)
Editorial Material
Meteorology & Atmospheric Sciences
Lijing Cheng, John Abraham, Kevin E. Trenberth, John Fasullo, Tim Boyer, Ricardo Locarnini, Bin Zhang, Fujiang Yu, Liying Wan, Xingrong Chen, Xiangzhou Song, Yulong Liu, Michael E. Mann, Franco Reseghetti, Simona Simoncelli, Viktor Gouretski, Gengxin Chen, Alexey Mishonov, Jim Reagan, Jiang Zhu
ADVANCES IN ATMOSPHERIC SCIENCES
(2021)
Article
Limnology
Dan Seidov, Alexey Mishonov, Rost Parsons
Summary: Recent decades have seen a significant warming trend in the Gulf of Maine, Scotian Shelf, and Slope Sea regions, with the Scotian Shelf and Slope Water region experiencing faster warming than the Gulf of Maine. This accelerated warming is likely a result of changes in the Gulf Stream extension region's circulation patterns.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Oceanography
Wilford D. Gardner, Mary Jo Richardson, Alexey Mishonov, Phoebe J. Lam, Yang Xiang
Summary: By combining transmissometer data and water sample analysis, researchers have gained a better understanding of the sources, distribution, and dynamics of particulate matter in Arctic basins. They found that Pacific water carries sediment-laden waters into the Chukchi Shelf and Canada Basin, while nutrient-rich Atlantic water entering the Barents Sea results in greater surface-water biomass. Ice and the nutrient-poor mixed layer inhibit photosynthesis in surface waters, but subsurface chlorophyll-a maxima indicate the presence of photosynthesis.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Proceedings Paper
Engineering, Marine
Sharon Mesick, Zhankun Wang, Alexey Mishonov, Tim Boyer, Huai-min Zhang
GLOBAL OCEANS 2020: SINGAPORE - U.S. GULF COAST
(2020)