A new pattern of the moisture transport for precipitation related to the drastic decline in Arctic sea ice extent

Gimeno‐Sotelo, Luis; Nieto, Raquel; Vázquez, M.

doi:10.5194/esd-9-611-2018

Cited by 26 publications

(44 citation statements)

References 48 publications

(62 reference statements)

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“…Earlier this was noted in the paper (Dufour et al , ) for the whole year. Recently Gimeno‐Sotelo et al () found a general decrease in moisture transport in summer and enhanced moisture transport in autumn and early winter, with different contributions depending on the moisture source and ocean subregion.…”

Section: Resultsmentioning

confidence: 98%

Impact of atmospheric heat and moisture transport on the Arctic warming

Алексеев

Kuzmina

Bobylev

et al. 2019

Intl Journal of Climatology

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The effect of the meridional atmospheric heat and moisture transport on the Arctic warming is estimated using the ERA‐Interim reanalysis over 1979–2015. Major influx of sensible and latent heat into the Arctic occurs through the Atlantic sector 0°–80°E between the surface and the 750 hPa level. This influx explains more than 50% of the average temperature variability in the area 70°–90°N in winter with almost equal contribution of both fluxes. Calculations using MPI‐ESM‐MR Earth System model from the Coupled Model Intercomparison Project Phase 5 (CMIP5) ensemble showed the similar effect of the meridional atmospheric heat and moisture transport and its increase by the end of the century. Mean summer transport in the low troposphere is directed from the Arctic and transfers out the moisture produced by summer melting of sea ice. The major drivers of summer warming are the radiation processes especially downwards longwave radiation.

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Section: Resultsmentioning

confidence: 98%

Impact of atmospheric heat and moisture transport on the Arctic warming

Алексеев

Kuzmina

Bobylev

et al. 2019

Intl Journal of Climatology

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“…Together with horizontal moisture convergence, anomalous intrusions of moisture may lead to anomalous precipitation, especially if forcing conditions favor enhanced condensation. Likewise the greenhouse effect or even cloud formation, the relationship between precipitation and ice melting is still unclear, and the effects of Arctic precipitation depend on the type of the precipitation and the season (e.g., Gimeno‐Sotelo et al, , ; Vihma et al, and references therein). In general terms, major flooding will favor the formation of superimposed ice, which will result in a increased ice thickness over the sea.…”

Section: Effects Of Moisture Gain On the Arctic Ice Floementioning

confidence: 99%

“…Firstly, for example, some evidence is apparent of an increase in moisture transported from the extratropics to polar regions during the spring, with a consequent increase in the radiative forcing of water vapor contributing to melting (Kapsch, Graversen, & Tjernström, ); secondly, there has been an apparent increase in moisture transport in winter, related to an increase in precipitation in catchments that drain into the Arctic, which subsequently produces an increase in summer discharge and contributes to Arctic Ice Melting (Zhang et al, ). The implications of moisture transport for precipitation on the Arctic SIE are diverse and difficult to quantify, because the changes in precipitation are associated with opposing mechanisms, depending on the form of precipitation (rain or snow), as well as its intensity and seasonality (Gimeno‐Sotelo, Nieto, Vázquez, & Gimeno, , ; Vihma et al, ).…”

Section: Introductionmentioning

confidence: 99%

Atmospheric moisture transport and the decline in Arctic Sea ice

Gimeno

Vázquez

Eiras‐Barca

et al. 2019

WIREs Climate Change

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This article contains a review of the transport of moisture to the Arctic and its effect on Arctic Sea Ice Extent (SIE). The review includes a synthesis of our knowledge regarding the main sources supplying moisture to the Arctic, the changes experienced over the last few decades due to variations in the transport of moisture, the factors that control interannual variability, and the inherent contrast in the mechanisms related to the effect of changes in moisture transport on SIE in the Arctic. We note that the precise identification of the moisture sources for the Arctic depends both on the definition of the Arctic region itself and on the approach used to identify the sources, with the remote regions over the extratropical Atlantic and Pacific Oceans being universally important, as are some continental areas over Siberia and North America. This review also reaffirms the absence of any clear agreement regarding the trends in atmospheric moisture transport to the Arctic, and highlights discrepancies between different data sets and approaches in the quantification of moisture transport, implying that its long‐term impact on the intensification of the hydrological cycle in the Arctic remains unclear. We confirm the influence of the major modes of climate variability, planetary circulation patterns, and the changes in cyclonic activity in the variability of moisture transport to the Arctic. We reaffirm that the effect of moisture transport on the Arctic SIE through changes in humidity, cloud cover, and precipitation over the Arctic is a complex scientific problem that requires further detailed study over the decades to come, and we propose some important challenges for future research. This article is categorized under: Paleoclimates and Current Trends > Modern Climate Change

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“…Although the Lagrangian techniques are based on the estimation of the E − P budget, they have been also used extensively in dozens of papers with great success for the precipitation estimation through the humidity coming from the source to the target regions for global [50,51] or regional studies [45,52,53].…”

Section: Lagrangian Approach For Moisture Transport Identificationmentioning

confidence: 99%

Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration

et al. 2019

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In this study, the moisture sources acting over each sea (Weddell, King Haakon VII, East Antarctic, Amundsen-Bellingshausen, and Ross-Amundsen) of the Southern Ocean during 1980-2015 are identified with the FLEXPART Lagrangian model and by using two approaches: backward and forward analyses. Backward analysis provides the moisture sources (positive values of Evaporation minus Precipitation, E − P > 0), while forward analysis identifies the moisture sinks (E − P < 0). The most important moisture sources for the austral seas come from midlatitude storm tracks, reaching a maximum between austral winter and spring. The maximum in moisture sinks, in general, occurs in austral end-summer/autumn. There is a negative correlation (higher with 2-months lagged) between moisture sink and sea ice concentration (SIC), indicating that an increase in the moisture sink can be associated with the decrease in the SIC. This correlation is investigated by focusing on extremes (high and low) of the moisture sink over the Weddell Sea. Periods of high (low) moisture sinks show changes in the atmospheric circulation with a consequent positive (negative) temperature anomaly contributing to decreasing (increasing) the SIC over the Weddell Sea. This study also suggests possible relationships between the positive (negative) phase of the Southern Annular Mode with the increase (decrease) in the moisture that travels from the midlatitude sources to the Weddell Sea.

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A new pattern of the moisture transport for precipitation related to the drastic decline in Arctic sea ice extent

Cited by 26 publications

References 48 publications

Impact of atmospheric heat and moisture transport on the Arctic warming

Impact of atmospheric heat and moisture transport on the Arctic warming

Atmospheric moisture transport and the decline in Arctic Sea ice

Characterization of Moisture Sources for Austral Seas and Relationship with Sea Ice Concentration

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