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  1. Potential ocean–atmosphere preconditioning of late autumn Barents-Kara sea ice concentration anomaly Authors: Martin P. King &Javier García-Serrano Published online: 19th February, 2016 Abstract: Many recent studies have revealed the importance of the climatic state in November on the seasonal climate of the subsequent winter. In particular, it has been shown that interannual variability of sea ice concentration (SIC) over the Barents-Kara (BK) seas in November is linked to winter atmospheric circulation anomaly that projects on the North Atlanti
  2. An Update on the Ice Climatology of the Hudson Bay System Authors: Klaus P. Hochheim and David G. Barber Published online: 16th January, 2018 Abstract: The objective of this paper is to examine the thermodynamic and dynamic forcing of sea ice within the Hudson Bay System, including Hudson Bay, Hudson Strait, and Foxe Basin. Changes in fall and spring sea ice extents (SIEs) are examined in relation to seasonal surface air temperatures (SATs) and winds, as are changes in freeze-up dates and breakup dates. The proportional leverage of the fall (lag1) and
  3. The Effect of QBO Phase on the Atmospheric Response to Projected Arctic Sea Ice Loss in Early Winter Authors: Zachary Labe, Yannick Peings and Gudrun Magnusdottir Published online: 24th June, 2019 Abstract: Recent modeling studies have shown an important role for stratosphere‐troposphere coupling in the large‐scale atmospheric response to Arctic sea ice loss. Evidence is growing that the Quasi‐biennial Oscillation (QBO) can contribute to or even mitigate teleconnections from surface forcing. Here, the influence of QBO phase on the atmospheric resp
  4. Impact of model resolution on Arctic sea ice and North Atlantic Ocean heat transport Authors: David Docquier et al Published online: 11th June, 2019 Abstract: Arctic sea-ice area and volume have substantially decreased since the beginning of the satellite era. Concurrently, the poleward heat transport from the North Atlantic Ocean into the Arctic has increased, partly contributing to the loss of sea ice. Increasing the horizontal resolution of general circulation models (GCMs) improves their ability to represent the complex interplay of processes at
  5. The Role of Atlantic Heat Transport in Future Arctic Winter Sea Ice Loss Authors: Marius Årthun, Tor Eldevik and Lars H. Smedsrud Published online: 14th May, 2019 Abstract: During recent decades Arctic sea ice variability and retreat during winter have largely been a result of variable ocean heat transport (OHT). Here we use the Community Earth System Model (CESM) large ensemble simulation to disentangle internally and externally forced winter Arctic sea ice variability, and to assess to what extent future winter sea ice variability and trends are dr
  6. Benchmark seasonal prediction skill estimates based on regional indices (Arctic Ice Extent) Authors: John E. Walsh, J. Scott Stewart and Florence Fetterer Published in "The Cryosphere": 3rd April, 2019 Abstract: Basic statistical metrics such as autocorrelations and across-region lag correlations of sea ice variations provide benchmarks for the assessments of forecast skill achieved by other methods such as more sophisticated statistical formulations, numerical models, and heuristic approaches. In this study we use observational data to evaluate th
  7. Arctic Sea Ice Volume Variability over 1901–2010: A Model-Based Reconstruction Authors: Axel J. Schweiger, Kevin R. Wood and Jinlun Zhang Published: 3rd July, 2019 Abstract: PIOMAS-20C, an Arctic sea ice reconstruction for 1901–2010, is produced by forcing the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) with ERA-20C atmospheric data. ERA-20C performance over Arctic sea ice is assessed by comparisons with measurements and data from other reanalyses. ERA-20C performs similarly with respect to the annual cycle of downwelling radiatio
  8. The Interconnected Global Climate System—A Review of Tropical–Polar Teleconnections Authors: Xiaojun Yuan, Michael R. Kaplan, and Mark A. Cane Published: 29th June, 2018 Abstract: This paper summarizes advances in research on tropical–polar teleconnections, made roughly over the last decade. Elucidating El Niño–Southern Oscillation (ENSO) impacts on high latitudes has remained an important focus along different lines of inquiry. Tropical to polar connections have also been discovered at the intraseasonal time scale, associated with Madden–Juli
  9. Minimal influence of reduced Arctic sea ice on coincident cold winters in mid-latitudes Authors: Russell Blackport, James A. Screen, Karin van der Wiel and Richard Bintanja Published: 12th August, 2019 Abstract: Observations show that reduced regional sea-ice cover is coincident with cold mid-latitude winters on interannual timescales. However, it remains unclear whether these observed links are causal, and model experiments suggest that they might not be. Here we apply two independent approaches to infer causality from observations and climate mod
  10. Investigating the local-scale influence of sea ice on Greenland surface melt Authors: Julienne C. Stroeve, John R. Mioduszewski, Asa Rennermalm, Linette N. Boisvert, Marco Tedesco and David Robinson Published: 23rd October, 2017 Abstract: Rapid decline in Arctic sea ice cover in the 21st century may have wide-reaching effects on the Arctic climate system, including the Greenland ice sheet mass balance. Here, we investigate whether local changes in sea ice around the Greenland ice sheet have had an impact on Greenland surface melt. Specifically, we
  11. Sea ice circulation around the Beaufort Gyre: The changing role of wind forcing and the sea ice state Authors: Alek A. Petty, Jennifer K. Hutchings, Jacqueline A. Richter‐Menge and Mark A. Tschudi First Published: 20th April, 2016 Abstract: Sea ice drift estimates from feature tracking of satellite passive microwave data are used to investigate seasonal trends and variability in the ice circulation around the Beaufort Gyre, over the multidecadal period 1980–2013. Our results suggest an amplified response of the Beaufort Gyre ice circulation to
  12. In a Spin: New Insights into the Beaufort Gyre Publication: EOS - Earth, Space and Science News Authors: Andrey Proshutinsky and Richard Krishfieldon First Published: 8th April, 2019 Abstract: None - this from "Researchgate": A new special collection in JGR: Oceans presents results from studies of the Beaufort Gyre, an oceanic circulation system in the Arctic that has far-reaching influence on the global climate. My recommendation: This article provides an excellent overview for learners of the Beaufort Gyre and how
  13. A comparison of Arctic sea ice in July - 2019 vs 2012 - YouTube Presentation Presented By: Seemorerocks 97 Presentation Date: 23rd July, 2019 Abstract: None My Summary: Seemorerocks is a climate change protagonist and writes regular blogs under this name. This was his analysis of the very low summer 2019 Arctic sea ice extent with a "possibilty" of the 2012 record all time low being beaten. He does a comparison between 2012 and 2019 drawing on data from Zach Labe. He used the following sources: NASA "World View" satellite
  14. Impacts of the Record Arctic Sea Ice Minimum of 2012 - Presentation 93rd AMS Annual Conference: from 5th to 10th January, 2013 at Austin Convention centre Session 1 on 8th January, 2013: "Global Weather Impacts in 2012" Presenters: Mark C. Serreze Presentation Date (time): 8th January, 2013 (0915) Presentation Summary: On 16 September, 2012, Arctic sea ice extent dropped to the lowest level recorded over the satellite era, which at 3.49 million square km was 18% lower than the previous record low extent set in S
  15. The great Arctic cyclone of August 2012 Authors: Ian Simmonds and Irina Rudeva First Published: 15th December, 2012 Abstract: On 2 August 2012 a dramatic storm formed over Siberia, moved into the Arctic, and died in the Canadian Arctic Archipelago on 14 August. During its lifetime its central pressure dropped to 966 hPa, leading it to be dubbed ‘The Great Arctic Cyclone of August 2012’. This cyclone occurred during a period when the sea ice extent was on the way to reaching a new satellite‐era low, and its intense behavior was related to baroclinici
  16. Extreme Arctic cyclone in August 2016 Authors: Akio Yamagami, Mio Matsueda and Hiroshi L. Tanaka First Published: 12th July, 2017 Abstract: An extremely strong Arctic cyclone (AC) developed in August 2016. The AC exhibited a minimum sea level pressure (SLP) of 967.2 hPa and covered the entire Pacific sector of the Arctic Ocean on 16 August. At this time, the AC was comparable to the strong AC observed in August 2012, in terms of horizontal extent, position, and intensity as measured by SLP. Two processes contributed to the explosive development of
  17. On the 2012 record low Arctic sea ice cover: Combined impact of preconditioning and an August storm Authors: Claire L. Parkinson and Josefino C. Comiso First Published: 14th March, 2013 Abstract: A new record low Arctic sea ice extent for the satellite era, 3.4 × 106 km2, was reached on 13 September 2012; and a new record low sea ice area, 3.0 × 106 km2, was reached on the same date. Preconditioning through decades of overall ice reductions made the ice pack more vulnerable to a strong storm that entered the central Arctic in early August 2012. The
  18. Seasonal sea ice forecast skills and predictability of the KMA's GloSea5 Authors: Byoung Woong An, Sang Min Lee, Pil-Hun Chang, KiRyong Kang, and Yoon Jae Kim First Published: 7th December, 2018 Abstract: Ensemble sea ice forecasts of the Arctic Ocean conducted with the Korea Meteorological Administration's coupled global seasonal forecast system (GloSea5) is verified. To investigate the temporal and spatial characteristics of the seasonal projection of Arctic sea ice extent and thickness, a set of ensemble potential predictability is assessed. I
  19. The urgency of Arctic change Authors: James Overland, Edward Dunlea, Jason E.Box, Robert Corell, Martin Forsius, Vladimir Kattsov, Morten Skovg ård Olsen, Janet Pawlak, Lars-OttoReiersen and MuyinWang Published: November 27th, 2018 Abstract: This article provides a synthesis of the latest observational trends and projections for the future of the Arctic. First, the Arctic is already changing rapidly as a result of climate change. Contemporary warm Arctic temperatures and large sea ice deficits (75% volume loss) demonstrate climate states ou
  20. How Global Warming and Arctic Ice Melt Intensify Hurricanes - YouTube Presentation Presented By: Dr Jennifer Francis (Research Professor at Rutgers University's Institute of Marine and Coastal Sciences since 1994) Interviewed By: Greg Wilpert Broadcast Team: The Real News Network Presentation Date: 21st September, 2018 Link to YouTube presentation (13 minutes): You can click on the chart above or use this link: https://www.youtube.com/watch?time_continue=45&v=cZTiFA39T8I
  21. Changing state of Arctic sea ice across all seasons Authors: Julienne Stroeve and Dirk Notz Published: Sept 2018 Abstract: The decline in the floating sea ice cover in the Arctic is one of the most striking manifestations of climate change. In this review, we examine this ongoing loss of Arctic sea ice across all seasons. Our analysis is based on satellite retrievals, atmospheric reanalysis, climate-model simulations and a literature review. We find that relative to the 1981–2010 reference period, recent anomalies in spring and winter sea ice coverage h
  22. Seasonal and Regional Manifestation of Arctic Sea Ice Loss Authors: Ingrid H. Onarheim, Tor Eldevik, Lars H. Smedsrud, Julienne C. Stroeve Published: May2018 Abstract: The Arctic Ocean is currently on a fast track toward seasonally ice-free conditions. Although most attention has been on the accelerating summer sea ice decline, large changes are also occurring in winter. This study assesses past, present, and possible future change in regional Northern Hemisphere sea ice extent throughout the year by examining sea ice concentration based on observations
  23. The influence of Arctic amplification on mid-latitude summer circulation Authors: D. Coumou, G. Di Capua, S. Vavrus, L. Wang & S. Wang Published: 20th August 2018 Abstract: Accelerated warming in the Arctic, as compared to the rest of the globe, might have profound impacts on mid-latitude weather. Most studies analyzing Arctic links to mid-latitude weather focused on winter, yet recent summers have seen strong reductions in sea-ice extent and snow cover, a weakened equator-to-pole thermal gradient and associated weakening of the mid-latitude circula
  24. Projected SSTs over 21st century: Changes in mean, variability & extremes for large marine ecosystem regions of Northern Oceans Authors: Michael A. Alexander (NOAA), James D. Scott, Kevin D. Friedland, Katherine E. Mills, Janet A. Nye, Andrew J. Pershing and Andrew C. Thomas Published: 26th January, 2018 Abstract: Global climate models were used to assess changes in the mean, variability and extreme sea surface temperatures (SSTs) in northern oceans with a focus on large marine ecosystems (LMEs) adjacent to North America, Europe, and the Arc
  25. A stratospheric pathway linking a colder Siberia to Barents-Kara Sea sea ice loss Authors: Pengfei Zhang, Yutian Wu, Isla R. Simpson, Karen L. Smith, Xiangdong Zhang, Bithi De and Patrick Callaghan Published: July 2018 Abstract: Previous studies have extensively investigated the impact of Arctic sea ice anomalies on the midlatitude circulation and associated surface climate in winter. However, there is an ongoing scientific debate regarding whether and how sea ice retreat results in the observed cold anomaly over the adjacent continents. We present a r
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