Article
Environmental Sciences
Jinjie Song, Philip J. Klotzbach, Yifei Dai, Yihong Duan
Summary: This study examines the impact of the North Pacific Gyre Oscillation (NPGO) on the rapid intensification (RI) of tropical cyclones in the western North Pacific. The results show a strong negative correlation between basinwide RI numbers and the NPGO index from 1970 to 2021. During the positive phase of NPGO, RI is suppressed throughout the western North Pacific, with different spatial patterns compared to the Pacific Decadal Oscillation. Enhanced negative low-level vorticity is the primary factor leading to reduced RI occurrence over the eastern Philippine Sea, while weak changes in RI occurrence are observed over the western Philippine Sea due to offsetting influences of mid-level humidity and low-level vorticity.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2023)
Article
Environmental Sciences
Joo-Eun Yoon, Ju-Hyoung Kim, Il-Nam Kim
Summary: This study investigates the impact of the North Pacific gyre oscillation (NPGO) mode on the relationship between primary production (PP) and export production (EP) in the eastern North Pacific subtropical gyre (NPSG). The results show that positive NPGO phases are associated with high PP and EP, while negative NPGO phases exhibit low EP despite high PP conditions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Yu-Hsin Hsueh, King-Fai Li, Li-Ching Lin, Sourendra Kumar Bhattacharya, Amzad H. Laskar, Mao-Chang Liang
Summary: The accurate projection of CO2 concentration globally is challenging due to the complex interplay between human activities, natural climate variability, and carbon cycling systems. Decadal CO2 variations in the western Pacific region have been identified, with a potential correlation to the Pacific Decadal Oscillation. Further research is needed to fully understand the impact of these decadal signals on carbon cycling and climate.
REMOTE SENSING OF ENVIRONMENT
(2021)
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
Geosciences, Multidisciplinary
Leonard F. Borchert, Matthew B. Menary, Didier Swingedouw, Giovanni Sgubin, Leon Hermanson, Juliette Mignot
Summary: The study compares the performance of initialized and uninitialized historical simulations from the CMIP5 and CMIP6 in representing subpolar SST variations since 1960. The results indicate that initialized decadal hindcasts from CMIP6 can explain a large portion of observed SST variance, suggesting a more significant role of forcing in driving subpolar SST changes than previously thought.
GEOPHYSICAL RESEARCH LETTERS
(2021)
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)
Article
Environmental Sciences
Nguyen-Xuan Hau, Masaki Sano, Takeshi Nakatsuka, Shin-Hao Chen, I. -Ching Chen
Summary: The monsoon precipitation in East Asia is affected by ENSO and PDO, but the long-term relationship between them is not well understood. In this study, tree ring data from Taiwan were used to reconstruct the EASM precipitation from 1533 to 2011. It was found that PDO has consistently modulated the ENSO-EASM relationship over the past 500 years, but the modulation effects may become less predictable under warming.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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
Zhipeng Dong, Feifei Zhou, Zhuangpeng Zheng, Keyan Fang
Summary: The North Pacific Gyre Oscillation (NPGO) is an important factor in regional ecosystem changes and climate anomalies in the North Pacific Ocean. This study reconstructs the NPGO using tree-ring chronologies and finds strong linkages with El Nino-Southern Oscillation (ENSO) and multidecadal Pacific variability (MPV), as well as the North Atlantic Oscillation (NAO) and Atlantic Multidecadal Oscillation (AMO).
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
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
Environmental Sciences
Yifei Dai, Bin Wang, Na Wei, Jinjie Song, Yihong Duan
Summary: This study investigates the impact of the North Pacific Gyre Oscillation (NPGO) on tropical cyclone genesis (TCG) in the western North Pacific (WNP). The findings show that the NPGO has opposite effects on TCG in the west and east WNP, resulting in an overall negative correlation between the NPGO and WNP total TCG number. The study highlights the importance of the NPGO's climate impact and its implications for predicting changes in WNP TCG.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Tao Wang, Wenshou Tian, Yufeng Lin, Xiaohua Gou, Hongwen Liu, Xuejia Wang, Fei Xie
Summary: Using multi-source observations and reanalysis data, this study reveals a significant weakening of the relationship between Arctic stratospheric ozone and North Pacific sea surface temperature since the 2000s. The study finds that the impact of stratospheric ozone on atmospheric circulation and sea surface temperature has changed over time, with a weaker influence observed in the post-2000 period compared to the pre-2000 period. The weakening of the ozone-related anomalies in the Asian region and the interference of the quasibiennial oscillation contribute to the changes in North Pacific wind patterns and sea surface temperature.
ATMOSPHERIC RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Shuai-Lei Yao, Wen Zhou, Fei-Fei Jin, Fei Zheng
Summary: The study suggests that a cooling in sea surface temperature due to Atlantic Multidecadal Variability can trigger a pan-Pacific response through wind-induced anomalies, leading to the development of a warm-phase pattern similar to IPO.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Anran Zhuge, Benkui Tan
Summary: The ZNPO pattern is a newly identified teleconnection pattern that oscillates mass in the troposphere between the eastern and western North Pacific, affecting severe weather and hydroclimate events in North Pacific and North America during winter. It is primarily driven by baroclinic energy conversion and feedback forcing by transient eddies, acting as a major source of kinetic energy to maintain the pattern.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Michael Rollings, Timothy M. Merlis
Summary: Observational techniques were used to analyze the relationship between Hadley cell extent, internal SST variability, and long-term warming. The study found a strong correlation between North Pacific decadal SST variability and Southern Hemisphere Hadley cell extent, as well as a linear sensitivity of Hadley cell width to long-term warming.
JOURNAL OF CLIMATE
(2021)
Article
Multidisciplinary Sciences
Jennifer L. Gosselin, James J. Anderson
Article
Oceanography
S. Ray, S. A. Siedlecki, M. A. Alexander, N. A. Bond, A. J. Hermann
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2020)
Article
Environmental Sciences
Patricia M. Clay, Jennifer Howard, D. Shallin Busch, Lisa L. Colburn, Amber Himes-Cornell, Steven S. Rumrill, Stephani G. Zador, Roger B. Griffis
Article
Biodiversity Conservation
Jennifer L. Gosselin, Lisa G. Crozier, Brian J. Burke
Summary: Incorporating environmental indices into population models has improved understanding of ecological systems, but correlations between population indicators and environmental indices may break down when tested with new data. Analyzing how correlations change over time can explain causal mechanisms and improve prediction of population indicators. For migratory salmon, habitat conditions affect fitness and viability, with spatial and temporal correlations varying by region and climatic events.
ECOLOGICAL INDICATORS
(2021)
Article
Ecology
Jennifer L. Gosselin, Eric R. Buhle, Christopher Van Holmes, W. Nicholas Beer, Susannah Iltis, James J. Anderson
Summary: This study analyzed the factors influencing survival across different life stages of Chinook salmon, finding that ocean conditions had the largest impact on survival. Other important factors included river temperature, flow, and ecological variables. The study highlights the importance of understanding both direct and carryover effects for effective conservation management of migratory species like salmon.
Article
Fisheries
Lorenzo Ciannelli, Anna B. Neuheimer, Leif C. Stige, Kenneth T. Frank, Joel M. Durant, Mary Hunsicker, Lauren A. Rogers, Steve Porter, Geir Ottersen, Natalia A. Yaragina
Summary: This study explores how marine species respond and adapt to climate change through shifting spatial distributions, with a focus on spatial constraints in different life stages. The findings show that early life stages of species are more spatially constrained than older stages, with significant species-specific variability. This highlights the importance of extending similar analyses to other species and regions to understand the impact of climate change on species distributions.
FISH AND FISHERIES
(2022)
Article
Biodiversity Conservation
Jan Ohlberger, Eric J. Ward, Richard E. Brenner, Mary E. Hunsicker, Stormy B. Haught, David Finnoff, Michael A. Litzow, Tobias Schwoerer, Gregory T. Ruggerone, Claudine Hauri
Summary: The study suggests that hatchery releases of pink salmon in Prince William Sound in the North Pacific Ocean have a negative impact on the productivity of wild pink salmon, likely due to competition between wild and hatchery juveniles in nearshore marine habitats.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Fisheries
Manuel Hidalgo, Valerio Bartolino, Marta Coll, Mary E. Hunsicker, Morgane Travers-Trolet, Howard Browman
Summary: The global challenge of climate change requires urgent development of innovative adaptive solutions for managing marine resources. Contributions to a themed article set explore emerging climate change impacts, assess system risks, evaluate adaptation options, and consider societal perceptions. Future development in adaptation science will require interdisciplinary collaboration and concrete solutions to address the challenges of climate change and human activity.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Fisheries
Brandon E. Chasco, Mary E. Hunsicker, Kym C. Jacobson, Owen T. Welch, Cheryl A. Morgan, Barbara A. Muhling, Jeff A. Harding
Summary: Climate change is impacting marine resources, altering trophic interactions and affecting fisheries opportunities. The market squid, the largest fishery in California, may see an increase in abundance in traditional fishing areas and northern habitats due to changing ocean conditions. Using survey data, a spatiotemporal model showed a fivefold increase in squid abundance from central California to northern Washington. Larger increases were observed in Oregon and Washington strata. The distribution shifts were associated with marine heatwaves rather than warmer and more saline waters. This study adds to existing research on the response of marine resources to long-term warming trends and episodic events and highlights the need for ecosystem assessment models to forecast changes in species distribution and abundance relevant to coastal fishing communities.
MARINE AND COASTAL FISHERIES
(2022)
Article
Ecology
Jennifer L. Gosselin, James J. Anderson, Beth L. Sanderson, Mollie A. Middleton, Benjamin P. Sandford, Laurie A. Weitkamp
Summary: This study aimed to determine the correlations between seasonal patterns of behavioral, physical, and physiological indices of juveniles and subsequent smolt-to-adult return (SAR) survival, and whether these indices could guide the mitigation strategy for juvenile fish transportation in the Federal Columbia River Power System. The results showed that the SAR survival was associated with interactions between juvenile fish transportation and % dry mass or NKA activity. Transported hatchery Chinook Salmon with lower % dry mass and higher NKA activity exhibited greater SAR survival than their run-of-river counterparts.
FRESHWATER SCIENCE
(2022)
Article
Fisheries
Megan L. Feddern, Erik R. Schoen, Rebecca Shaftel, Curry J. Cunningham, Craig Chythlook, Brendan M. Connors, Alyssa D. Murdoch, Vanessa R. von Biela, Brooke Woods
Summary: Understanding how species are responding to environmental change is a central challenge, especially in remote high-latitude regions like the Arctic-Yukon-Kuskokwim (AYK), where data collection is difficult. The AYK region is seeing rapid rates of environmental change, particularly affecting Chinook Salmon populations, which has significant implications for local communities who rely on subsistence fishing.
Article
Fisheries
Cathleen D. D. Vestfals, Kristin N. N. Marshall, Nick Tolimieri, Mary E. E. Hunsicker, Aaron M. M. Berger, Ian G. G. Taylor, Michael G. G. Jacox, Brendan D. D. Turley
Summary: Understanding environmental drivers of recruitment variability in marine fishes remains an important challenge. We developed a life-history model for Pacific hake to investigate the variables influencing their recruitment. Five variables explained 59% of the recruitment variability, including eddy kinetic energy, bifurcation index, herring biomass, alongshore transport, and storm events. Other predictors like upwelling strength, calm periods, and predation also played a role in recruitment variability. These findings highlight the complex mechanisms affecting Pacific hake recruitment.
FISHERIES OCEANOGRAPHY
(2023)
Article
Fisheries
Emily L. Norton, Isaac C. Kaplan, Samantha Siedlecki, Albert J. Hermann, Simone R. Alin, Jan Newton, Kelly Corbett, Daniel Ayres, Ervin Joe Schumacker, Nicholas A. Bond, Kate Richerson, Michael A. Alexander
Summary: In this study, a statistical model was developed to predict the catch per unit effort of Dungeness crab in Oregon and Washington. The model incorporated dynamic and lagged ocean conditions, and showed improved accuracy compared to simpler models. Fishing behavior was found to be an important factor in the model's performance, and the relationship between catch rates and ocean conditions may help understand the environmental influences on catch variability.
ICES JOURNAL OF MARINE SCIENCE
(2023)