Rapid change of the Arctic climate system and its global influences - Overview of GRENE Arctic climate change research project (2011–2016)

Yamanouchi, Takashi; Takata, Kumiko

doi:10.1016/j.polar.2020.100548

Cited by 31 publications

(12 citation statements)

References 190 publications

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“…The first falls on the period 1950 -1962, the second, more prolonged, -starting from the 1980s of the 20th century. In July 2020, the value of the average annual air temperature anomaly in the Arctic region reached its maximum for the entire history of observations -2.45 ° C, which confirms the factual data on the unprecedented acceleration of the Arctic climate warming in recent years [9]. It is important to note that warming in the Arctic occurs against the background of a predominantly positive phase of fluctuations in the index NAO (warm Arctic) (Figure 1, b) [10].…”

Section: Introductionsupporting

confidence: 81%

Application of wavelet analysis methods to study the climate of the Arctic region

Solovyev

Nefedova²

2022

IOP Conf. Ser.: Earth Environ. Sci.

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This paper provides an assessment of the possibilities and advantages of using wavelet analysis methods in the study of regional mechanisms of climate formation in the Arctic region by analyzing the relationship between the values of the air temperature anomalies at the Earth's surface and the North Atlantic Oscillation index. It is shown that the methods of wavelet analysis of climatic indices have certain advantages for identifying cyclical changes in climatic characteristics on local time scales and allow an in-depth spectral assessment. The conducted wavelet analysis of the NAO and SAT index (1950-2020) made it possible to estimate the previously known natural quasi-cyclic oscillations with a typical period of 7-15 years and other dominant components of their spectrum.

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Section: Introductionsupporting

confidence: 81%

Application of wavelet analysis methods to study the climate of the Arctic region

Solovyev

Nefedova²

2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…The relationships and interactions found here between sea ice, the atmosphere, and SMB are similar to findings from the Arctic. Studies using observational (Yu et al., 2019), modelled (Yamanouchi & Takata, 2020), and reanalysis data (Stroeve et al., 2017) found that low SIC triggers an enhanced flux of heat and moisture into the atmosphere, which triggers increased downward LW radiation in the Arctic. These results coincide with what we found using observational data in the CEN, that SIC, the atmosphere, and adjacent SMB are connected through water vapor fluxes and associated variables.…”

Section: Discussionmentioning

confidence: 99%

“…The influence of sea ice variability on AIS SMB has been evaluated by models (Ayres et al., 2022; Wang et al., 2020), however there is a key lack of research utilizing observational data sets to explore potential impacts. Underscoring the importance of filling this knowledge gap, recent research in the Arctic has revealed important impacts of sea ice retreat on the surface energy and mass balances of Greenland ice sheet (Stroeve & Notz, 2018), with decreased Arctic sea ice correlated with increased melt, snowfall, and low‐level clouds over the Greenland ice sheet (e.g., Stroeve et al., 2017; Trusel et al., 2018; Vavrus et al., 2010; Yamanouchi & Takata, 2020; Yu et al., 2019). However, the nature behind the drivers of these connections is still relatively unknown.…”

Section: Introductionmentioning

confidence: 99%

Identifying the Impacts of Sea Ice Variability on the Climate and Surface Mass Balance of West Antarctica

Kromer,

Trusel

2023

Geophysical Research Letters

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The Antarctic ice sheet (AIS) is the largest freshwater body on Earth and a major component of the sea level budget. Over the satellite era, the AIS has experienced ∼130 Gt/year of mass loss. Net losses are partially mitigated by snow accumulation that varies ∼100–130 Gt/yr, underscoring a need to understand the drivers of snowfall variability. Here, we evaluate impacts of decreased sea ice in the Amundsen Sea region of West Antarctica on the overlying atmosphere and surface mass balance of the adjacent AIS using composites, spatial correlations, and a causal effect network method. Importantly, our findings show sea ice declines in the Amundsen Sea lead to enhanced integrated water vapor that is subsequently transported to the AIS resulting in positive anomalies in West Antarctic ice sheet snowfall. Our results suggest future decreases in sea ice may likely enhance ice sheet snowfall, thus partially offsetting Antarctic sea level contributions.

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“…The Arctic’s vast expanses of ocean and land remain a difficult region to obtain field data due to logistics and cost. There are already many international cooperative Arctic research projects, while the research topic is still not a top priority (Yamanouchi & Takata, 2020). In the Arctic regions, people are aware and conscious of the rapid climate change from landscape changes and infrastructure damages (Kaltenborn et al., 2020).…”

Section: Call To Actionmentioning

confidence: 99%

Coupled Changes in the Arctic Carbon Cycle Between the Land, Marine, and Social Domains

Wu,

Macdonald,

2023

Earth's Future

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The Arctic has experienced rapid change associated with warming since the 1970s. The rapid retreat of the terrestrial cryosphere can release a large amount greenhouse gas from the permafrost regions into the air, and the sea ice decline will affect the CO2 and CH4 balance in the ocean. Changes in the Arctic provide feedback mechanisms that can also impinge on the global ocean’s thermohaline circulation. During the past years, the overall natural processes in the Arctic have been studied although the magnitude and timing of carbon release from the cryosphere changes require further investigation. However, few studies have been conducted to link the natural and social systems in the Arctic. Scientists and policymakers must consider the coupled Arctic land, ocean, and social systems in their decisions for coping with climate change.

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Rapid change of the Arctic climate system and its global influences - Overview of GRENE Arctic climate change research project (2011–2016)

Cited by 31 publications

References 190 publications

Application of wavelet analysis methods to study the climate of the Arctic region

Application of wavelet analysis methods to study the climate of the Arctic region

Identifying the Impacts of Sea Ice Variability on the Climate and Surface Mass Balance of West Antarctica

Coupled Changes in the Arctic Carbon Cycle Between the Land, Marine, and Social Domains

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