Article
Remote Sensing
Jiajun Feng, Yuanzhi Zhang, Qiuming Cheng, Kapo Wong, Yu Li, Jin Yeu Tsou
Summary: The research utilized deep learning networks to establish a relationship model between MODIS surface reflectance product and Arctic melt ponds fraction, ice fraction, and open water fraction. The model significantly improved MPF estimation accuracy and revealed spatiotemporal changes in MPF during early summer, showing correlations with sea ice extent and air temperature. The results suggest that early summer MPF plays a role in influencing sea ice movement, air temperature, and can be used to predict air temperature in northern China.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Environmental Sciences
Jiechen Zhao, Yining Yu, Jingjing Cheng, Honglin Guo, Chunhua Li, Qi Shu
Summary: The study assessed three SSMIS-based sea ice concentration products and found potential underestimation or overestimation of concentration depending on the algorithms used. The presence of melt ponds influenced the concentration biases, with a relationship established between sea ice concentration biases and melt pond fraction observations for improved accuracy in 2D sea ice concentration distributions.
Article
Geosciences, Multidisciplinary
Linda Thielke, Niels Fuchs, Gunnar Spreen, Bruno Tremblay, Gerit Birnbaum, Marcus Huntemann, Nils Hutter, Polona Itkin, Arttu Jutila, Melinda A. Webster
Summary: Comparing helicopter-borne surface temperature maps in winter and optical orthomosaics in summer, a strong geometric correlation was found between warm anomalies in winter and melt pond location in the following summer. These warm anomalies are associated with thinner snow and ice, allowing for water accumulation during melt. A one-dimensional steady-state thermodynamic model shows that the observed surface temperature differences align with ice thickness and snow depth. The potential for seasonal prediction of summer melt pond location and coverage from winter surface temperature observations is demonstrated, achieving a correct classification for 41% of the melt ponds through threshold-based classification.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Ivan Sudakow, Vijayan K. Asari, Ruixu Liu, Denis Demchev
Summary: This study proposes a robust and efficient automatic method for melt pond region segmentation and boundary extraction from high-resolution aerial photographs. The results show that the method is suitable for precise automatic extraction and has the potential to be extended to other optical data sources involving melt ponds.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Melinda A. Webster, Marika Holland, Nicholas C. Wright, Stefan Hendricks, Nils Hutter, Polona Itkin, Bonnie Light, Felix Linhardt, Donald K. Perovich, Ian A. Raphael, Madison M. Smith, Luisa von Albedyll, Jinlun Zhang
Summary: This study investigates the seasonal behavior and variability of melt ponds in the Arctic using in situ surveys, auxiliary observations, satellite retrievals, and two models. The results show that both models overestimate melt pond coverage in summer and have slight differences in simulating the freeze-up date. Accurate representation of sea-ice processes and properties is crucial for simulations of albedo feedbacks in a warming climate.
ELEMENTA-SCIENCE OF THE ANTHROPOCENE
(2022)
Article
Environmental Sciences
Lei Zheng, Xiao Cheng, Zhuoqi Chen, Qi Liang
Summary: The study examines the relationship between sea ice freeze-up timing and summer sea ice evolution through satellite-based observations, highlighting the impact of Arctic sea ice loss on the delay in autumn freeze-up. It reveals the physical mechanism behind this connection and emphasizes the importance of the ice-albedo feedback in the process.
Article
Meteorology & Atmospheric Sciences
Xuanwen Zhang, Bingyi Wu, Shuoyi Ding
Summary: This study investigates the association between spring Arctic sea ice melt and surface air temperature in mid-high latitudes of Eurasia. The results show that there is a dipole pattern in surface air temperature anomalies over Eurasia associated with Arctic sea ice melt. The atmospheric circulation anomaly differs from traditional patterns due to different spatial modes. The study suggests that Arctic sea ice anomalies can influence the atmospheric circulation and lead to temperature variations over Eurasia.
Article
Engineering, Environmental
Qing Ji, Bingjie Li, Xiaoping Pang, Xi Zhao, Ruibo Lei
Summary: Sea ice density plays a critical role in climate models and in retrieving sea ice thickness from satellite altimeters, especially in the rapidly changing Arctic sea ice environment. This study found that using updated sea ice density values could significantly improve the accuracy of Arctic SIT retrieval from the CryoSat-2 satellite altimeter.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Yinghui Ding, Ying Qu, Zeli Peng, Mengsi Wang, Xijia Li
Summary: This study developed a method using a neural network model to estimate the surface albedo of Arctic sea ice, taking into account the influences of reflectance anisotropy and melt ponds. The results showed improved estimation accuracy and calculation efficiency compared to previous studies. This provides new insights for estimating Arctic sea ice albedo from satellite observations.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Oceanography
Xiaoli Chen, Chunxia Zhou, Lei Zheng, Mingci Li, Yong Liu, Tingting Liu
Summary: Understanding the Arctic sea ice climate indicators is crucial for business strategic planning and climate monitoring. This study analyzed the temporal means and trends of Arctic sea ice phenology from 1982 to 2017, and proposed key stages in the melt season. The findings show that the Arctic sea ice undergoes a quick transition from ice to open water, extending the melt season year by year.
ACTA OCEANOLOGICA SINICA
(2022)
Article
Environmental Sciences
Jong -Min Kim, Sang -Woo Kim, Byung-Ju Sohn, Hyun-Cheol Kim, Sang-Moo Lee, Young-Joo Kwon, Hoyeon Shi, Andrey V. Pnyushkov
Summary: A method was developed to estimate pan-Arctic ice draft using spaceborne passive microwave measured brightness temperatures. The method was validated using upward-looking sonar measurements and ice mass balance buoy measurements. The results showed good agreement between the estimated ice draft and the measurements, suggesting the robustness of the estimation method.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Environmental Sciences
Kasper Hancke, Svein Kristiansen, Lars Chresten Lund-Hansen
Summary: Arctic summer sea ice is melting and forming melt ponds, which are understudied but potentially important for carbon turnover. This study reports on ice algal mats collected from melt ponds in the northern Barents Sea, showing high carbon assimilation and primary production rates comparable to benthic microalgae in temperate tidal flats. These dense ice algal mats may be an important source of organic carbon in the Arctic food-web and sensitive to climate driven changes.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Environmental
Seung-Kyu Kim, Hee-Jee Lee, Ji-Su Kim, Sung-Ho Kang, Eun-Jin Yang, Kyoung-Ho Cho, Zhexi Tian, Anthony Andrady
Summary: The study revealed that the plastic particles trapped in Arctic sea ice are comparable to those in other Arctic basins, suggesting a strong linkage between the Western Arctic Ocean and the Arctic Central Basin. Additionally, it highlighted the role of the Western Arctic Ocean ice zone as a sink for global microplastics and a potential source for Arctic microplastics.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Marine & Freshwater Biology
Jihee Kim, Jong-Kuk Moon, Eun Jin Yang, Eunsuk Kim, Seunghee Han
Summary: This study identified seawater as the major source of total mercury (THg) in sea ice and in situ methylation as the potential source of methylmercury (MeHg). The melt flux of MeHg in the Arctic Ocean was found to be insignificant compared to other external sources. However, the ongoing decline of sea ice extent is likely to enhance MeHg production in late spring and summer.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Oceanography
Hongjie Liang, Jie Su
Summary: The onset of ice/snow melt is critical for the ice-albedo positive feedback in the Arctic region. The timing of melt onset has shown a significant shift between the Laptev Sea and the East Siberian Sea from 1979 to 2018, with a phenomenon referred to as the Melt Onset Seesaw becoming more pronounced since 1999. The melt onset in each of these regions is influenced by a combination of local variables and large-scale atmospheric circulation patterns.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Review
Meteorology & Atmospheric Sciences
Jon Robson, Rowan T. Sutton, Alex Archibald, Fenwick Cooper, Matthew Christensen, Lesley J. Gray, N. Penny Holliday, Claire Macintosh, Malcolm McMillan, Ben Moat, Maria Russo, Rachel Tilling, Ken Carslaw, Damien Desbruyeres, Owen Embury, Daniel L. Feltham, Daniel P. Grosvenor, Simon Josey, Brian King, Alastair Lewis, Gerard D. McCarthy, Chris Merchant, Adrian L. New, Christopher H. O'Reilly, Scott M. Osprey, Katie Read, Adam Scaife, Andrew Shepherd, Bablu Sinha, David Smeed, Doug Smith, Andrew Ridout, Tim Woollings, Mingxi Yang
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2018)
Article
Multidisciplinary Sciences
H. D. B. S. Heorton, D. L. Feltham, M. Tsamados
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2018)
Article
Oceanography
R. C. Frew, D. L. Feltham, P. R. Holland, A. A. Petty
JOURNAL OF PHYSICAL OCEANOGRAPHY
(2019)
Article
Meteorology & Atmospheric Sciences
Ed Blockley, Martin Vancoppenolle, Elizabeth Hunke, Cecilia Bitz, Daniel Feltha, Jean-Francois Lemieux, Martin Losch, Eric Maisonnave, Dirk Notz, Pierre Rampal, Steffen Tietsche, Bruno Tremblay, Adrian Turner, Francois Massonnet, Einar Olason, Andrew Roberts, Yevgeny Aksenov, Thierry Fichefet, Gilles Garric, Doroteaciro Lovino, Gurvan Madec, Clement Rousset, David Salas y Melia, David Schroeder
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2020)
Article
Meteorology & Atmospheric Sciences
Jake Aylmer, David Ferreira, Daniel Feltham
JOURNAL OF CLIMATE
(2020)
Article
Environmental Sciences
Maria-Vittoria Guarino, Louise C. Sime, David Schroeder, Irene Malmierca-Vallet, Erica Rosenblum, Mark Ringer, Jeff Ridley, Danny Feltham, Cecilia Bitz, Eric J. Steig, Eric Wolff, Julienne Stroeve, Alistair Sellar
NATURE CLIMATE CHANGE
(2020)
Article
Meteorology & Atmospheric Sciences
Shona Mackie, Patricia J. Langhorne, Harold D. B. S. Heorton, Inga J. Smith, Daniel L. Feltham, David Schroeder
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2020)
Review
Meteorology & Atmospheric Sciences
Elizabeth Hunke, Richard Allard, Philippe Blain, Ed Blockley, Daniel Feltham, Thierry Fichefet, Gilles Garric, Robert Grumbine, Jean-Francois Lemieux, Till Rasmussen, Mads Ribergaard, Andrew Roberts, Axel Schweiger, Steffen Tietsche, Bruno Tremblay, Martin Vancoppenolle, Jinlun Zhang
CURRENT CLIMATE CHANGE REPORTS
(2020)
Article
Geosciences, Multidisciplinary
Masa Kageyama, Louise C. Sime, Marie Sicard, Maria-Vittoria Guarino, Anne de Vernal, Ruediger Stein, David Schroeder, Irene Malmierca-Vallet, Ayako Abe-Ouchi, Cecilia Bitz, Pascale Braconnot, Esther C. Brady, Jian Cao, Matthew A. Chamberlain, Danny Feltham, Chuncheng Guo, Allegra N. LeGrande, Gerrit Lohmann, Katrin J. Meissner, Laurie Menviel, Polina Morozova, Kerim H. Nisancioglu, Bette L. Otto-Bliesner, Ryouta O'ishi, Silvana Ramos Buarque, David Salas y Melia, Sam Sherriff-Tadano, Julienne Stroeve, Xiaoxu Shi, Bo Sun, Robert A. Tomas, Evgeny Volodin, Nicholas K. H. Yeung, Qiong Zhang, Zhongshi Zhang, Weipeng Zheng, Tilo Ziehn
Summary: The Last Interglacial period (LIG) is characterized by increased summer insolation at high northern latitudes, leading to significant changes in the terrestrial and marine cryosphere. Analysis of climate models in relation to Arctic sea ice during the LIG shows varying results, with some models underestimating and others overestimating sea ice cover. Differences between models may be attributed to variations in short-wave anomalies, albedo, optical depth of clouds, and ocean circulation changes during the LIG period.
CLIMATE OF THE PAST
(2021)
Article
Geography, Physical
Rebecca J. Rolph, Daniel L. Feltham, David Schroder
Article
Geography, Physical
Adam W. Bateson, Daniel L. Feltham, David Schroder, Lucia Hosekova, Jeff K. Ridley, Yevgeny Aksenov
Article
Geography, Physical
David Schroeder, Danny L. Feltham, Michel Tsamados, Andy Ridout, Rachel Tilling
Article
Geography, Physical
Sammie Buzzard, Daniel Feltham, Daniela Flocco
Article
Geography, Physical
Julienne C. Stroeve, David Schroder, Michel Tsamados, Daniel Feltham