Role of Intense Arctic Storm in Accelerating Summer Sea Ice Melt: An In Situ Observational Study

Peng, L.; Zhang, Xiangdong; Kim, Joo-Hong; Cho, Kyoung‐Ho; Kim, Baek-Min; Wang, Zhaomin; Tang, Han

doi:10.1029/2021gl092714

Cited by 22 publications

(10 citation statements)

References 49 publications

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“…Under the background of global climate change, extreme Arctic storms have occurred in summer (Peng et al, 2021;Simmonds & Rudeva, 2012;Vüllers et al, 2021;Zhang et al, 2013). Consequently, these extreme Arctic storms has not only accelerated sea ice loss but also contributed to sea ice drift, further influencing the dynamics of Arctic climate (Peng et al, 2021;Figure 8. Evolution of (a) center sea level pressure (black, unit: hPa) and the distance between cyclone center and tropopause polar vortice (TPV) (red, unit: km) for TPV-matched cyclones in AR.…”

Section: Discussionmentioning

confidence: 99%

“…Arctic cyclones have large impacts on Arctic weather and climate. Under the background of global climate change, extreme Arctic storms have occurred in summer (Peng et al., 2021; Simmonds & Rudeva, 2012; Vüllers et al., 2021; Zhang et al., 2013). Consequently, these extreme Arctic storms has not only accelerated sea ice loss but also contributed to sea ice drift, further influencing the dynamics of Arctic climate (Peng et al., 2021; Simmonds & Rudeva, 2012; Vüllers et al., 2021; Zhang et al., 2013).…”

Section: Discussionmentioning

confidence: 99%

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Comparison of Intense Summer Arctic Cyclones Between the Marginal Ice Zone and Central Arctic

Kong,

Lu,

Guan

et al. 2024

JGR Atmospheres

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Arctic cyclone activity is an important component of the local climate, and the frequent occurrence of extreme summer storms has raised widespread scientific interest. In this paper, we investigated the distinctive structural characteristics of intense summer Arctic cyclones by utilizing ERA‐Interim reanalysis data and employing a deep learning algorithm for cyclone detection. We found that the northern edge of Eurasia (i.e., the marginal ice zone (MIZ)) and the Alpha Ridge of Arctic Ocean (AR, i.e. central Arctic) are the two most active regions for intense Arctic cyclone activities in summer (from June to September). However, the surface conditions and coupling frequency between surface cyclone and tropopause polar vortices (TPVs) are distinct over these two regions. By further analysis of 100 intense cyclone activities in these two areas, respectively, we found that cyclones in MIZ are often smaller in size but higher in intensity at their maximum intensity, and their life cycles are generally shorter. MIZ cyclones are typically accompanied by a large Eady growth rate and frontal structure in the lower troposphere and their intensification primarily attributed to the thermal‐baroclinic process. In contrast, cyclones in AR are more frequently associated with higher potential vorticity (PV) values and pronounced PV downward intrusion from the stratosphere, as well as notable “upper warm‐lower cold” structures. The downward intrusion of TPVs and stratosphere vortices contribute to a decrease in the upper and column air mass deficit, leading to the intensification of surface Arctic cyclones in these regions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Comparison of Intense Summer Arctic Cyclones Between the Marginal Ice Zone and Central Arctic

Kong,

Lu,

Guan

et al. 2024

JGR Atmospheres

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“…This suggests that since 2007, fresh water has increased sooner in the year (April) relative to before this transition year. This may be tied to earlier sea ice retreat and melting (Bliss et al., 2019; Peng et al., 2021) or increased precipitation in the Arctic (Vihma et al., 2016). Precipitation in the Arctic has been favoring rain rather than snow (Ahmed et al., 2020) which does not require melt time that snow needs to become liquid fresh water.…”

Section: Discussionmentioning

confidence: 99%

The Role of the Russian Shelf in Seasonal and Interannual Variability of Arctic Sea Surface Salinity and Freshwater Content

2023

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Fresh water plays a pivotal role in the Arctic Ocean's climate, as salinity governs upper ocean stratification, convection, and the promotion of seasonal sea ice growth or melt. The Beaufort Gyre (BG) contains a significant amount of fresh water; however, there is limited understanding of the role that the Russian Arctic Shelf plays in the Arctic Ocean's freshwater content (FWC). Here, we use salinity from the European Centre for Medium‐Range Weather Forecasts' Ocean Reanalysis System 5 product to first compare with in situ and satellite observations. We then conduct analyses over the years 1979–2018 to examine FWC and salinity on the Russian Shelf (30°E−180°E; shallower than 200 m depth), in the BG (130°W–170°W, 70.5°N–80.5°N), and over the Arctic Ocean as a whole (northward of 66°N). Our results indicate that the Russian Shelf consists of ∼16% of the total freshwater volume (FWV) in the Arctic Ocean (80,7623 km3) and has a negative trend (−15.63 km3/yr), primarily influenced by negative trends in the Kara and Laptev Seas. We also find a notable regime shift during the summer of 2007 for both the BG (increased FWV) and Russian Shelf (decreased FWV). When computing Arctic FWV changes before and after this 2007 regime shift, there is up to a 25% error if the Russian Shelf's FWV is omitted.

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“…4a) reaches its maximum/minimum. An intensification of the summer Arctic storm activity is also likely to happen as the land-sea thermal contrast increases under global warming [62][63][64], which can increase the WV both in the ocean and atmosphere.…”

Section: Increased Irregularity Of Arctic Sea Ice Covermentioning

confidence: 99%

Dynamic Arctic weather variability and connectivity

Meng¹,

Fan²,

Bhatt³

et al. 2023

Preprint

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The rapidly shrinking Arctic sea ice is changing weather patterns and disrupting the balance of nature.Dynamics of Arctic weather variability (WV) plays a crucial role in weather forecasting and is closely related to extreme weather events. Yet, assessing and quantifying the WV for both local Arctic regions and its planetary impacts under anthropogenic climate change is still unknown. Here, we develop a complexitybased approach to systematically evaluate and analyze the dynamic behaviour of WV. We reveal that the WV within and around the Arctic is statistically correlated to the Arctic Oscillation at the intraseasonal time scale. We further find that the variability of the daily Arctic sea ice is increasing due to its dramatic decline under a warming climate. Unstable Arctic weather conditions can disturb regional weather patterns through atmospheric teleconnection pathways, resulting in higher risk to human activities and greater weather forecast uncertainty. A multivariate climate network analysis reveals the existence of such teleconnections and implies a positive feedback loop between the Arctic and global weather instabilities. This enhances the mechanistic understanding of the influence of Arctic amplification on mid-latitude severe weather. Our framework provides a fresh perspective on the linkage of complexity science, WV and the Arctic.

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Role of Intense Arctic Storm in Accelerating Summer Sea Ice Melt: An In Situ Observational Study

Abstract: Synoptic-scale storms play important roles in modulating turbulent heat, moisture, and momentum exchanges between the atmosphere, sea ice, and ocean, and driving transient energy and water transport (e.g.,

Cited by 22 publications

References 49 publications

Comparison of Intense Summer Arctic Cyclones Between the Marginal Ice Zone and Central Arctic

Comparison of Intense Summer Arctic Cyclones Between the Marginal Ice Zone and Central Arctic

The Role of the Russian Shelf in Seasonal and Interannual Variability of Arctic Sea Surface Salinity and Freshwater Content

Dynamic Arctic weather variability and connectivity

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