Review
Environmental Sciences
J. E. Overland, T. J. Ballinger, J. Cohen, J. A. Francis, E. Hanna, R. Jaiser, B. -M Kim, S. -J Kim, J. Ukita, T. Vihma, M. Wang, X. Zhang
Summary: Pronounced changes in the Arctic environment contribute to anomalous weather patterns in midlatitudes, but uncertainties in the atmosphere's chaotic nature and internal atmospheric dynamics obscure direct causes and effects. Reduced sea ice coverage in different Arctic regions can lead to various downstream weather impacts in different seasons.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Sang-Moo Lee, Hoyeon Shi, Byung-Ju Sohn, Albin J. Gasiewski, Walter N. Meier, Gorm Dybkjaer
Summary: This study estimated snow depth on sea ice from 2003 to 2020 using satellite measurements, showing that reliable snow depth can be obtained through this method. It also found a decreasing trend in snow depth across the entire Arctic Ocean, as well as geographical differences in snow depth trends between multiyear ice areas and other regions.
GEOPHYSICAL RESEARCH LETTERS
(2021)
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
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
Meteorology & Atmospheric Sciences
Yungi Hong, S. -Y. Simon Wang, Seok-Woo Son, Jee-Hoon Jeong, Sang-Woo Kim, Baekmin Kim, Hyungjun Kim, Jin-Ho Yoon
Summary: In recent decades, the interior regions of Eurasia and North America have experienced unusually cold winters, which contradict the global surface air temperature increases. This phenomenon can be explained by the Warm Arctic Cold Continent (WACC) pattern, caused by the amplified Arctic warming affecting the circulation change in surrounding continents. This study, analyzing reanalysis data and model experiments, confirms the existence of the WACC pattern in historical and future runs. The findings suggest a continued presence of the WACC pattern in the future, although with a slightly weakened cold extreme due to overall warming, leading to more complex teleconnection processes and reduction in potential predictability of midlatitude winter anomalies.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
David Clemens-Sewall, Chris Polashenski, Markus M. Frey, Christopher J. Cox, Mats A. Granskog, Amy R. Macfarlane, Steven W. Fons, Julia Schmale, Jennifer K. Hutchings, Luisa von Albedyll, Stefanie Arndt, Martin Schneebeli, Don Perovich
Summary: The amount of snow lost into Arctic leads was measured in winter 2020, revealing minimal snow loss under typical winter conditions. However, during a cyclone with warm air temperatures, high winds, and snowfall, a significant amount of snow was lost. This suggests that warm air temperatures may be an important factor in snow loss into leads.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Eui-Jong Kang, Byung-Ju Sohn, Rasmus Tage Tonboe, Gorm Dybkjaer, Kenneth Holmlund, Jong-Min Kim, Chao Liu
Summary: This paper introduces a sea ice prognostic model that successfully simulates the physical properties of snow and ice over the Arctic Ocean during the winter season. The model utilizes a one-dimensional thermodynamic diffusion model, satellite data, and Lagrangian ice tracking, with high correlations between simulated variables and in situ measurements. The nudging of satellite-derived temperature data significantly improves the thermal structure of the model, serving as a key element for successful simulation of other variables.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2021)
Article
Environmental Sciences
Andreas Colliander, Mohammad Mousavi, John S. Kimball, Julie Z. Miller, Mariko Burgin
Summary: Increasingly larger portions of the Greenland ice sheet are melting and refreezing seasonally due to global climate warming. Our study shows that multi-frequency passive microwave measurements effectively distinguish seasonal meltwater on the surface and deeper ice layers. The results indicate persistent seasonal subsurface meltwater occurrences that are concealed from high-frequency observations.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Environmental Sciences
Di Liu, Yanyun Shen, Yiwen Wang, Zhipan Wang, Zewen Mo, Qingling Zhang
Summary: Accurate monitoring of snow and ice dynamics in the Arctic is crucial for understanding climate change impacts and predicting feedback on global climate. Traditional remote sensing methods have limitations in long-term observations of polar regions. This study systematically assessed the use of moonlight remote sensing to monitor snow/ice dynamics during dark Arctic winters. Using VIIRS/DNB time series data and object-oriented Random Forests algorithm, we achieved high accuracy in revealing the spatiotemporal dynamics of snow/ice covers from 2012 to 2022. Our findings demonstrate the potential of moonlight remote sensing for continuous monitoring in the Arctic and contribute to polar studies and climate change research.
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
Oceanography
Laramie T. Jensen, Nathan T. Lanning, Chris M. Marsay, Clifton S. Buck, Ana M. Aguilar-Islas, Robert Rember, William M. Landing, Robert M. Sherrell, Jessica N. Fitzsimmons
Summary: The surface waters of the Arctic Ocean include an important inventory of freshwater from rivers, sea ice melt, and glacial meltwaters. Different metals exhibit varying concentrations and impacts as colloids in different cryospheric reservoirs.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Geochemistry & Geophysics
Hoyeon Shi, Sang-Moo Lee, Byung-Ju Sohn, Albin J. Gasiewski, Walter N. Meier, Gorm Dybkjar, Sang-Woo Kim
Summary: This study aims to develop a new retrieval algorithm for snow depth, sea ice thickness, bulk density, and ice freeboard in the Arctic winter by combining CryoSat-2 with passive microwave and infrared measurements. The algorithm combines two parameterizations with hydrostatic balance and radar wave speed correction equations to obtain solutions for the four variables. The results show good agreement with airborne snow depth, total freeboard, and mooring ice draft measurements, and the retrieved multiyear sea ice bulk density is more consistent with in situ measurements compared to previous parameterizations.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Meteorology & Atmospheric Sciences
Irina Rudeva, Ian Simmonds
Summary: The study identified links between winter temperature extremes in midlatitudes and circulation anomalies in the Arctic and tropics, with tropical Pacific and Atlantic wave trains affecting North America and Siberia. The Arctic seas were found to be significantly important for Eurasian regions. Analysis suggests that pre-existing local temperature anomalies play a key role in the development of synoptic temperature extremes and the amplification of large-scale wave trains. The study also demonstrated that warm Arctic regions can lead to cold outbreaks in Siberia and North America.
JOURNAL OF CLIMATE
(2021)
Article
Meteorology & Atmospheric Sciences
Gabriele Arduini, Sarah Keeley, Jonathan J. Day, Irina Sandu, Lorenzo Zampieri, Gianpaolo Balsamo
Summary: Correctly representing the snow on sea-ice is crucial for improving cryosphere-atmosphere coupling and enhancing weather forecasting and monitoring applications. Different approaches to simulate snow on sea-ice have shown to improve the representation of temperature variability, reduce surface temperature biases, and enhance the simulation of temperature inversions.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
