Possible Impact of Early Spring Arctic Sea Ice on Meiyu Cessation over the Yangtze–Huaihe River Basin by Jing Wang, Ning Fu, Ping Liang, Mingcai Li

“…This study observed an intimate out-of-phase relationship between MWD variations and early spring (March and April) Arctic Sea ice area (SIA) anomalies to the north of the Chukchi and Beaufort Seas, as well as SIA anomalies to the north of the Queen Elizabeth Islands (75° N–82° N, 170° E–130° W and 82° N–86° N, 130° W–80° W, respectively) on the interannual timescale. …”
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Delay in Arctic Sea Ice Freeze-Up Linked to Early Summer Sea Ice Loss: Evidence from Satellite Observations by Lei Zheng, Xiao Cheng, Zhuoqi Chen, Qi Liang

“…Sea ice loss would be the key reason for the delay in autumn freeze-up, especially in the Laptev, East-Siberian, Chukchi and Beaufort Seas, where sea ice has significantly declined throughout the summer, and strong correlations were found between the freeze-up onset and the solar radiation budget since early summer. …”
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Summer net community production in the northern Chukchi Sea: Comparison between 2017 and 2020 by Soyeon Kwon, Soyeon Kwon, Inhee Lee, Keyhong Park, Kyoung-Ho Cho, Jinyoung Jung, Taewook Park, Youngju Lee, Chanhyung Jeon, Chanhyung Jeon, Seongbong Seo, Doshik Hahm, Doshik Hahm

“…The net community production (NCP) estimates that we derived from O2/Ar measurements were largely in the range of 1 – 11 mmol O2 m-2 d-1 in the northern Chukchi and Beaufort Seas, close to the lower bounds of the values in the global oceans. …”
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Surface and Interior Dynamics of Arctic Seas Using Surface Quasi-Geostrophic Approach by Marta Umbert, Eva De-Andrés, Rafael Gonçalves-Araujo, Marina Gutiérrez, Roshin Raj, Laurent Bertino, Carolina Gabarró, Jordi Isern-Fontanet

“…This study assesses the capability of Surface Quasi-Geostrophy (SQG) to reconstruct the three-dimensional (3D) dynamics in four critical areas of the Arctic Ocean: the Nordic, Barents, East Siberian, and Beaufort Seas. We first reconstruct the upper ocean dynamics from TOPAZ4 reanalysis of sea surface height (SSH), surface buoyancy (SSB), and surface velocities (SSV) and validate the results with the geostrophic and total TOPAZ4 velocities. …”
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Changes in the Arctic Ocean CO by Menemenlis, D., Key, R. M., Manizza, Manfredi, Follows, Michael J, Dutkiewicz, Stephanie, Hill, Christopher N.

“…A regional analysis suggests that during the 1996-2007 period, the shelf regions of the Laptev, East Siberian, Chukchi, and Beaufort Seas experienced an increase in the efficiency of their biological pump due to decreased sea ice area, especially during the 2004-2007 period, consistent with independently published estimates of primary production. …”
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Determination of polar bear (Ursus maritimus) individual genotype and sex based on DNA extracted from paw-prints in snow by Andrew L. Von Duyke, Justin A. Crawford, Lori Quakenbush, Jennifer R. Adams, Lisette P. Waits

“…Snow was sampled from 13 polar bear trails (10 paw-prints per trail) on the sea ice in the Chukchi and Beaufort seas along the North Slope of Alaska. Species verification was based on a mt-DNA PCR fragment analysis test. …”
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