Article
Environmental Sciences
Wangwang Ye, Yuhong Li, Jianwen Wen, Jiexia Zhang, Natalia Shakhova, Jian Liu, Man Wu, Igor Semiletov, Liyang Zhan
Summary: Increasing temperatures in the Arctic Ocean are causing changes in methane cycles, with methane being stored and transported from the Chukchi Sea to the central Arctic. The concentration of methane is increasing in the Upper Halocline, and its distribution is expanding due to intensified Pacific water inflow. Methane is also found in the Polar Mixed Layer and below-ice seawater in the basins, suggesting the influence of sea ice cycles and sediment-origin methane. The Arctic Ocean currently has minor atmospheric methane emissions, but the increasing methane excess and decreasing sea ice cover may lead to future emissions.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Multidisciplinary Sciences
Judah Cohen, Laurie Agel, Mathew Barlow, Chaim Garfinkel, Ian White
Summary: The Arctic is warming at a rate twice the global average, leading to increased severe winter weather in many mid-latitude regions. Research shows a physical link between a lesser-known stratospheric polar vortex disruption and extreme cold in parts of Asia and North America. Numerical modeling experiments support a connection between Arctic change and the stretching of the stratospheric polar vortex and its surface impacts.
Article
Geography, Physical
Martin Mohrmann, Celine Heuze, Sebastiaan Swart
Summary: Studies show that biases exist in the representation of polynyas in climate models, with most models underestimating the area of openwater polynyas but overestimating the area of coastal polynyas. Some models unrealistically create polynyas nearly every year, while others inaccurately depict the activity patterns of polynyas.
Article
Environmental Sciences
Yingjie Wang, Na Liu, Zhanhai Zhang
Summary: In recent decades, the Arctic sea ice cover has been decreasing, with 2017 winter showing negative sea ice concentration anomalies in the Chukchi Sea and adjacent seas. Changes in Pacific water properties through the Bering Strait have played a significant role in the 2017 Arctic sea ice retreat.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Geography, Physical
Klaus Dethloff, Wieslaw Maslowski, Stefan Hendricks, Younjoo J. Lee, Helge F. Goessling, Thomas Krumpen, Christian Haas, Doerthe Handorf, Robert Ricker, Vladimir Bessonov, John J. Cassano, Jaclyn Clement Kinney, Robert Osinski, Markus Rex, Annette Rinke, Julia Sokolova, Anja Sommerfeld
Summary: During the winter of 2019/2020, the Arctic Oscillation (AO) experienced significant shifts, leading to changes in sea ice thickness in the Arctic region. The winter sea ice conditions in the Arctic Ocean can be significantly altered by AO variability.
Article
Meteorology & Atmospheric Sciences
Jakob Dorr, Marius Arthun, Tor Eldevik, Erica Madonna
Summary: Ocean heat transport plays a crucial role in driving changes to the Arctic winter sea ice cover, with future projections indicating an increasing influence from the Pacific and Atlantic sectors.
JOURNAL OF CLIMATE
(2021)
Review
Oceanography
Jun Nishioka, Ichiro Yasuda, Toru Hirawake, Tomohiro Nakamura, Yoshiko Kondo, Yuri N. Volkov
Summary: The memorial addresses for Mr. Alexey Fedorovich Shcherbinin and Captain Evgeniy Anikovich Sklizkov highlight their significant roles and leadership in Russian-Japanese collaborative expeditions, expressing deep condolences and honoring their achievements.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Geochemistry & Geophysics
A. J. Dickson, M. Davies, A. S. Cohen, M. -l. Bagard
Summary: During the early Paleogene, the closure of seaways that connected the Arctic Ocean to the global ocean resulted in severe hydrographic restriction. New osmium isotope data from organic-rich sediments in the central Arctic Ocean during the Early-Middle Eocene show that the isotopic composition of osmium in Arctic seawater began to differ from that of the global ocean after the Eocene Thermal Maximum 2 hyperthermal event, likely due to the gradual closure of seaways connecting the two oceans.
GEOCHEMICAL PERSPECTIVES LETTERS
(2022)
Article
Environmental Sciences
Alex Crawford, Julienne Stroeve, Abigail Smith, Alexandra Jahn
Summary: The length of open-water period in the Arctic region is projected to increase significantly with global warming, which may have been underestimated in the latest climate model simulations.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Yu Liang, Haibo Bi, Ruibo Lei, Timo Vihma, Haijun Huang
Summary: By investigating the patterns of horizontal atmospheric latent energy (LE) transport towards the Arctic, this study identified four primary transport pathways and observed their interannual variability. The results indicate that these pathways are significantly modulated by cyclones, especially the northern Europe and Greenland Sea pathways. The study also provides insights into the relationship between atmospheric LE transport and air temperature, moisture, surface heat flux, and sea ice anomalies over the Arctic Ocean in winter. Through thermodynamic analysis, it argues that the enhanced local atmosphere-ice interactions caused by poleward LE transport contribute to the loss of Arctic sea ice.
JOURNAL OF CLIMATE
(2023)
Article
Geography, Physical
Yanguang Liu, Peng Ren, Tengfei Song, Claude Hillaire-Marcel, Xu Zhang, Xuchen Wang
Summary: In this study, the distribution and burial of black carbon (BC) and total organic carbon (TOC) in the Chukchi Sea shelf were evaluated. It was found that the distribution of BC and TOC was strongly influenced by the inflow of Pacific Water (PW), and their burial was enhanced during the middle Holocene due to the increase in PW flux. In the late Holocene, insolation-induced sea ice increase started playing a role in the stratigraphic variations of BC, when the PW inflow was active and stable.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Environmental Sciences
Lei Cai, Vladimir A. Alexeev, Jinlun Zhang, John E. Walsh
Summary: According to this study, the negative phase of the Arctic Dipole (AD) patterns has a similar impact on sea ice thickness as the Arctic Oscillation (AO) in winter. The negative AD has a persistent influence on sea ice thickness comparable to the AO. Additionally, the AO and AD affect sea ice conditions differently, with the AO reducing sea ice thickness after the melting season and the negative AD inhibiting sea ice growth thermodynamically during the growing season in the Atlantic sector of the Arctic Ocean.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2023)
Article
Meteorology & Atmospheric Sciences
Alice K. Duvivier, Maria J. Molina, Anna-Lena Deppenmeier, Marika M. Holland, Laura Landrum, Kristen Krumhardt, Stephanie Jenouvrier
Summary: This study investigates winter polynyas in the southern Ross Sea, Antarctica and identifies polynya events using a self organizing map algorithm. The results show that the polynyas in the Ross Sea have similar characteristics to the ones generated by the model, and the frequency of polynya events is projected to decrease sharply in the future.
Review
Oceanography
Bridget Ovall, Robert S. Pickart, Peigen Lin, Phyllis Stabeno, Thomas Weingartner, Motoyo Itoh, Takashi Kikuchi, Elizabeth Dobbins, Shaun Bell
Summary: The study reveals a clear relationship between northeasterly winds along the northwest coast of Alaska and reversed flow along the length of Barrow Canyon and at a mooring site similar to 100 km upstream on the northeast shelf. Additionally, it is found that Atlantic Water is frequently upwelled into the canyon during the fall and winter, but reaching the head of Barrow Canyon requires a series of long upwelling events. Analyses of ice cover and mooring velocity records shed light on the importance of inflow pathways on freeze-up and melt-back patterns, as well as the dominant circulation pattern and secondary flow pattern related to variations in the regional wind field.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Multidisciplinary Sciences
Laura Gemery, Thomas M. Cronin, Lee W. Cooper, Harry J. Dowsett, Jacqueline M. Grebmeier
Summary: The study focused on the ecological and distributional aspects of benthic ostracodes in the Pacific-Arctic region, identifying six species with diagnostic habitat ranges. Statistical analyses revealed that ostracode assemblages were influenced by summer water masses and complex water mass characteristics across different spatial scales. Dominant species remained fairly constant over recent decades, but there were slight increases in abundance of certain species, indicating a potential response to changing water mass properties in recent years. This ecological data suggests hypotheses for future benthic monitoring efforts.
Article
Oceanography
S. L. Danielson, O. Ahkinga, C. Ashjian, E. Basyuk, L. W. Cooper, L. Eisner, E. Farley, K. B. Iken, J. M. Grebmeier, L. Juranek, G. Khen, S. R. Jayne, T. Kikuchi, C. Ladd, K. Lu, R. M. McCabe, G. W. K. Moore, S. Nishino, F. Ozenna, R. S. Pickart, I Polyakov, P. J. Stabeno, R. Thoman, W. J. Williams, K. Wood, T. J. Weingartner
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2020)
Article
Geosciences, Multidisciplinary
M. Oltmanns, J. Karstensen, G. W. K. Moore, S. A. Josey
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Oceanography
Peigen Lin, Robert S. Pickart, Kerstin Jochumsen, G. W. K. Moore, Heoinn Valdimarsson, Tim Fristedt, Lawrence J. Pratt
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2020)
Article
Oceanography
Astrid Pacini, Robert S. Pickart, Frank Bahr, Daniel J. Torres, Andree L. Ramsey, James Holte, Johannes Karstensen, Marilena Oltmanns, Fiammetta Straneo, Isabela Astiz Le Bras, G. W. K. Moore, M. Femke de Jong
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2020)
Editorial Material
Physiology
J. L. Semple, G. W. K. Moore
RESPIRATORY PHYSIOLOGY & NEUROBIOLOGY
(2020)
Article
Meteorology & Atmospheric Sciences
I. A. Renfrew, C. Barrell, A. D. Elvidge, J. K. Brooke, C. Duscha, J. C. King, J. Kristiansen, T. Lachlan Cope, G. W. K. Moore, R. S. Pickart, J. Reuder, I. Sandu, D. Sergeev, A. Terpstra, K. Vage, A. Weiss
Summary: The Iceland and Greenland Seas play a crucial role in the climate system and investigating atmosphere-ocean-ice processes in this region often requires the use of meteorological reanalyses. This study evaluates the surface-layer meteorology and surface turbulent fluxes in winter and spring for the latest reanalysis ERA5, highlighting discrepancies in the accuracy over the marginal ice zone.
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
G. W. K. Moore, S. E. L. Howell, M. Brady, X. Xu, K. McNeil
Summary: Ice arches at the northern and southern ends of Nares Strait, a key passage in the Arctic, are forming for shorter durations, leading to increased ice transport and accelerating the export of multi-year ice.
NATURE COMMUNICATIONS
(2021)
Article
Oceanography
Fei Tian, Robert S. Pickart, Peigen Lin, Astrid Pacini, G. W. K. Moore, Phyllis Stabeno, Thomas Weingartner, Motoyo Itoh, Takashi Kikuchi, Elizabeth Dobbins, Shaun Bell, Rebecca A. Woodgate, Seth L. Danielson, Zhaomin Wang
Summary: The study identifies multiple factors in shaping the seasonal cycle of hydrography and circulation on the Chukchi shelf, including coastal circulation, polynya/lead activity, wind mixing, and climate variations. Significant differences in water temperature and salinity between warm and cold seasons are observed, with wind impact playing a significant role in seasonal variations.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
G. W. K. Moore, J. L. Semple
Summary: The outbreak of the novel coronavirus in 2020 has had significant impacts on global public health, the environment, and economy, leading to a substantial decrease in air pollution in the Indo-Gangetic Plain region. Research findings show a significant reduction in air pollution in the western IGP and Himalaya regions during the lockdown, while an increase in air pollution was observed in the eastern IGP and Himalaya regions.
Article
Geosciences, Multidisciplinary
G. W. K. Moore, S. E. L. Howell, M. Brady
Summary: The area to the north of Ellesmere Island and Greenland, known as the "Last Ice Area", contains the thickest ice in the Arctic and may serve as an important refuge for ice-dependent species facing extinction. However, recent observations show that this region is undergoing rapid changes that may affect its suitability as a refuge.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Paul G. Myers, Laura Castro de la Guardia, Chuanshuai Fu, Laura C. Gillard, Nathan Grivault, Xianmin Hu, Craig M. Lee, G. W. K. Moore, Clark Pennelly, Mads Hvid Ribergaard, Joy Romanski
Summary: Baffin Bay receives warm Atlantic Water from the North Atlantic, impacting the retreat of tidewater glaciers draining the Greenland Ice Sheet. In late 2010, there was a reversal in net transport at Davis Strait, leading to significant northward oceanic heat transport into Baffin Bay.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
G. W. K. Moore
Summary: Nares Strait serves as a major pathway for multi-year sea ice to exit the Arctic, with winds playing a crucial role in regulating ice export and forming the North Water polynya. Research shows that the wind flow is highly bidirectional, with the highest wind speeds coming from the north, and a model resolution of around 9 km is needed to accurately capture the observed variability.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
Marc De Benedetti, G. W. K. Moore, Xiaoyong Xu
Summary: The hydrology of the Congo Basin, an important basin for the global climate, is not well understood due to limited in situ measurements. This study investigates the impact of model resolution on the spatial variability of the basin's hydroclimate using the DLCS technique. The results show that the representation of precipitation and precipitation-minus-evaporation fields are sensitive to model resolution, while the evaporation field is more stable.
Article
Multidisciplinary Sciences
G. W. K. Moore, K. Vage, I. A. Renfrew, R. S. Pickart
Summary: Water mass transformation in the Nordic and Barents Seas, triggered by air-sea heat fluxes, is undergoing reorganization due to rapid warming and retreating ice cover in the region.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Axel J. Schweiger, Michael Steele, Jinlun Zhang, G. W. K. Moore, Kristin L. Laidre
Summary: Satellite data and sea ice model experiments have shown that the Wandel Sea in the Arctic Ocean, a part of the Last Ice Area, experienced a record-low sea ice concentration in August 2020. This was attributed to a multi-year sea-ice thinning trend due to climate change, compounded by natural climate variability, making the Last Ice Area less resilient to warming than previously thought.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Oceanography
Jason A. Law, Robert H. Weisberg, Yonggang Liu, Dennis A. Mayer, Jeffrey C. Donovan
Summary: Time series data from a moored array of sensors are used to describe the long-term mean circulation and seasonal variations on the West Florida Continental Shelf. The observations reveal a coherent shelf-wide circulation pattern with alongshore and down-coast flow, and a coastal jet separating an upwelling region from a downwelling region influenced by the deeper ocean.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2024)