Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2026, V. 23, No. 1, pp. 333-348
Extreme moisture transport to the Pacific Arctic on November 26–27, 2019, from ERA5 reanalysis dataset and microwave satellite measurements
I.A. Gurvich 1 , M.K. Pichugin 1 , A.V. Baranyuk 1 1 V.I. Il'ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
Accepted: 01.12.2025
DOI: 10.21046/2070-7401-2026-23-1-333-348
The paper examines the influence of the southern synoptic process on the extreme water vapor transport to the Pacific Arctic and ice conditions of the Chukchi Sea using the ERA5 high-resolution reanalysis dataset, microwave satellite measurements and the OISST (Optimum Interpolation Sea Surface Temperature) dataset version 2.1. On the basis of the threshold criterion, the event was classified as extreme with duration of 30 hours and contribution of 30.1 % to the total monthly moisture transport in November 2019 through 67° N in the 180–210° E sector. Statistical analysis for 2001–2020 revealed 11 such extreme events of water vapor transfer to the Chukchi Sea, with 72.7 % of them occurring in the past decade, which may indicate an acceleration of climatic changes in moisture transport to the Arctic. The event occurred against the background of stable positive sea surface temperature anomalies in the North Pacific and excess in the duration of ice-free period in the Chukchi Sea by more than a month, which is associated with the residual effects of the marine heat wave. A significant sea ice reduction in the northern part of the Chukchi Sea was accompanied by a combination of dynamic factors (winds >25 m/s, storm waves), thermal processes (heat advection) and radiation effects (an expected increase in descending long-wave radiation due to an increase in atmospheric moisture content). At the same time, the revealed underestimation of wind speed by ERA5 data compared with satellite measurements may lead to an underestimation of the intensity of ocean–atmosphere heat exchange. The study shows that such events can have cascading effects on the Pacific Arctic climate system, affecting hydrological processes, sea ice conditions and regional thermal balance.
Keywords: Arctic, Chukchi Sea, moisture transport, southern cyclone, sea heat wave, ice conditions, climate change, microwave satellite measurements, reanalysis
Full textReferences:
- Alekseev G. V., Kuzmina S. I., Urazgildeeva A. V., Bobylev L. P., Impact of atmospheric heat and moisture transport on Arctic warming in winter, Fundamental and Applied Climatology, 2016, No. 1, pp. 43–63 (in Russian), DOI: 10.21513/2410-8758-2016-1-43-63.
- Zimich P. I., Atmosfernye protsessy i pogoda Vostochnoi Arktiki (Atmospheric processes and weather in the Eastern Arctic), Vladivostok: Dal’nauka, 1998, 236 p. (in Russian).
- Zuenko Yu. I., Savin A. B., Basyuk E. O., Impacts of extreme warming in 2016–2019 on the stock of pacific cod Gadus macrocephalus (Gadidae) in the Russian waters of northwestern Bering Sea, Izvestiya TINRO, 2025, V. 205, No. 2, pp. 366–388 (in Russian), DOI: 10.26428/1606-9919-2025-205-366-388.
- Amaya D. J., Miller A. J., Xie S. P., Kosaka Y., Physical drivers of the summer 2019 North Pacific marine heatwave, Nature Communications, 2020, V. 11, No. 1, Article 1903, DOI: 10.1038/s41467-020-15820-w.
- Belkin I. M., Short J. W., Echoes of the 2013–2015 marine heat wave in the eastern Bering Sea and consequent biological responses, J. Marine Science and Engineering, 2023, V. 11, No. 5, Article 958, https://doi.org/10.3390/jmse11050958.
- Bresson H., Rinke A., Mech M. et al., Case study of a moisture intrusion over the Arctic with the ICOsahedral Non-hydrostatic (ICON) model: resolution dependence of its representation, Atmospheric Chemistry and Physics, 2022, V. 22, pp. 173–196, https://doi.org/10.5194/acp-22-173-2022.
- Brunello C. F., Gebhardt F., Rinke A. et al., Moisture transformation in warm air intrusions into the Arctic: Process attribution with stable water isotopes, Geophysical Research Letters, 2024, V. 51, Iss. 21, Article e2024GL111013, DOI: 10.1029/2024GL111013.
- Carvalho K. S., Smith T. E., Wang S., Bering Sea marine heatwaves: Patterns, trends and connections with the Arctic, J. Hydrology, 2021, V. 600, Article 126462, DOI: 10.1016/J.JHYDROL.2021.126462.
- Cavallo S. M., Frank M. C., Bitz C. M., Sea ice loss in association with Arctic cyclones, Communications Earth and Environment, 2025, V. 6, Article 44, https://doi.org/10.1038/s43247-025-02022-9.
- Chen Z., Shi J., Liu Q. et al., A persistent and intense marine heatwave in the Northeast Pacific during 2019–2020, Geophysical Research Letters, 2021, V. 48, Iss. 13, Article e2021GL093239, https://doi.org/10.1029/2021GL093239.
- Dethloff K., Maslowski W., Hendricks S. et al., Arctic sea ice anomalies during the MOSAiC winter 2019/20, The Cryosphere, 2022, V. 16, No. 3, pp. 981–1005, https://doi.org/10.5194/tc-16-981-2022.
- Dufour A., Zolina O., Gulev S. K., Atmospheric moisture transport to the Arctic: Assessment of reanalyses and analysis of transport components, J. Climate, 2016, V. 29, No. 14, pp. 5061–5081, DOI: 10.1175/JCLI-D-15-0559.1.
- Eiras-Barca J., Ramos A. M., Pinto J. G. et al., The concurrence of atmospheric rivers and explosive cyclogenesis in the North Atlantic and North Pacific basins, Earth System Dynamics, 2018, V. 9, No. 1, pp. 91–102, DOI: 10.5194/esd-9-91-2018.
- Fearon M. G., Doyle J. D., Finocchio P. M., Soil moisture influences on summer Arctic cyclones and their associated poleward moisture transport, Monthly Weather Review, 2023, V. 151, No. 7, pp. 1699–1716, DOI: 10.1175/MWR-D-22-0264.1.
- Gimeno-Sotelo L., Nieto R., Vázquez M., Gimeno L., A new pattern of the moisture transport for precipitation related to the drastic decline in Arctic sea ice extent, Earth System Dynamics, 2018, V. 9, No. 2, pp. 611–625, DOI: 10.5194/esd-9-611-2018.
- Groves D. G., Francis J. A., Moisture budget of the Arctic atmosphere from TOVS satellite data, J. Geophysical Research: Atmospheres, 2002, V. 107, No. D19, Article 4391, DOI: 10.1029/2001JD001191.
- Hao M., Luo Y., Lin Y. et al., Contribution of atmospheric moisture transport to winter Arctic warming, Intern. J. Climatology, 2019, V. 39, No. 5, pp. 2697–2710, DOI: 10.1002/joc.5982.
- Hersbach H., Bell B., Berrisford P. et al., The ERA5 global reanalysis, Quarterly J. Royal Meteorological Soc., 2020, V. 146, No. 730, pp. 1999–2049, DOI: 10.1002/qj.3803.
- Huang B., Chunying L., Banzon V., Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) version 2.1, J. Climate, 2021, V. 34, No. 8, pp. 2923–2939, DOI: 10.1175/JCLI-D-20-0166.1.
- Kirbus B., Tiedeck S., Camplani A. et al., Surface impacts and associated mechanisms of a moisture intrusion into the Arctic observed in mid-April 2020 during MOSAiC, Frontiers in Earth Science, 2023, V. 11, Article 1147848, DOI: 10.3389/feart.2023.1147848.
- Kong B., Liu N., Fan L et al., Evaluation of surface meteorology parameters and heat fluxes from CFSR and ERA5 over the Pacific Arctic Region, Quarterly J. Royal Meteorological Soc., 2022, V. 148, No. 747, pp. 2973–2990, https://doi.org/10.1002/qj.4346.
- Koyama T., Stroeve J., Cassano J., Crawford A., Sea ice loss and Arctic cyclone activity from 1979 to 2014, J. Climate, 2017, V. 30, No. 12, pp. 4735–4754, DOI: 10.1175/JCLI-D-16-0542.1.
- Liu C., Barnes E. A., Extreme moisture transport into the Arctic linked to Rossby wave breaking, J. Geophysical Research: Atmospheres, 2015, V. 120, No. 9, pp. 3774–3788, DOI: 10.1002/2014JD022796.
- Lubin D., Zou X., Mülmenstädt J. et al., Surface radiation trends at north slope of Alaska influenced by large-scale circulation and atmospheric rivers, 2025, EGUsphere [preprint], 2025, 24 p., https://doi.org/10.5194/egusphere-2025-2768.
- Ma W., Wang H., Chen G. et al., Wintertime extreme warming events in the high Arctic: characteristics, drivers, trends, and the role of atmospheric rivers, Atmospheric Chemistry and Physics, 2024, V. 24, No. 7, pp. 4451–4472, https://doi.org/10.5194/acp-24-4451-2024.
- Naakka T., Nygård T., Vihma T. et al., Atmospheric moisture transport between mid-latitudes and the Arctic: Regional, seasonal and vertical distributions, Intern. J. Climatology, 2019, V. 39, No. 6, pp. 2862–2879, DOI: 10.1002/joc.5988.
- Newman M., Kiladis G. N., Weickmann K. M. et al., Relative contributions of synoptic and low-frequency eddies to time-mean atmospheric moisture transport, including the role of atmospheric rivers, J. Climate, 2012, V. 25, No. 21, pp. 7341–7361, DOI: 10.1175/JCLI-D-11-00665.1.
- Papritz L., Dunn‐Sigouin E., What configuration of the atmospheric circulation drives extreme net and total moisture transport into the Arctic, Geophysical Research Letters, 2020, V. 47, No. 17, Article e2020GL089769, DOI: 10.1029/2020GL089769.
- Papritz L., Hauswirth D., Hartmuth K., Moisture origin, transport pathways, and driving processes of intense wintertime moisture transport into the Arctic, Weather and Climate Dynamics, 2022, V. 3, No. 1, pp. 1–20, DOI: 10.5194/wcd-3-1-2022.
- Park H.-S., Lee S., Son S.-W. et al., The impact of poleward moisture and sensible heat flux on Arctic winter sea ice variability, J. Climate, 2015, V. 28, No. 13, pp. 5030–5040, DOI: 10.1175/JCLI-D-15-0074.1.
- Qin T., Ren H.-L., Zhao S. et al., Climatic characteristics and interannual influencing factors of extreme cyclones in the arctic cold season, Climate Dynamics, 2025, V. 63, No. 7, Article 283, 14 p., DOI: 10.1007/s00382-025-07762-0.
- Reynolds R. W., Smith T. V., Liu C. H. et al., Daily high-resolution-blended analyses for sea surface temperature, J. Climate, 2007, V. 20, No. 22, pp. 5473–5496, DOI: 10.1175/2007JCLI1824.1.
- Schreiber E. A. P., Serreze M. C., Impacts of synoptic-scale cyclones on Arctic sea-ice concentration: a systematic analysis, Annals of Glaciology, 2020, V. 61, Iss. 82, pp. 139–163, https://doi.org/10.1017/aog.2020.23.
- Sun W., Liang Y., Bi H. et al., Insight on poleward moisture and energy transport into the Arctic from ERA5, Atmosphere, 2022, V. 13, No. 4, Article 616, DOI: 10.3390/atmos13040616.
- Tachibana Y., Komatsu K. K., Alexeev V. A. et al., Warm hole in Pacific Arctic sea ice cover forced mid-latitude Northern Hemisphere cooling during winter 2017–18, Scientific Reports, 2019, V. 9, No. 1, Article 5567, 12 p., DOI: 10.1038/s41598-019-41682-4.
- The Arctic: State of the Climate in 2019, Bull. American Meteorological Soc., 2020, V. 101, No. 8, pp. S243–S286, https://doi.org/10.1175/BAMS-D-20-0086.1.
- Uhlíková T., Vihma T., Karpechko A. Yu., Uotila P., Effects of Arctic sea-ice concentration on turbulent surface fluxes in four atmospheric reanalyses, The Cryosphere, 2024, V. 18, No. 2, pp. 957–976, https://doi.org/10.5194/tc-18-957-2024.
- Vihma T., Screen J., Tjernström M. et al., The atmospheric role in the Arctic water cycle: A review on processes, past and future changes, and their impacts, J. Geophysical Research: Biogeosciences, 2015, V. 121, pp. 586–620, DOI: 10.1002/2015JG003132.
- Villamil-Otero G. A., Zhang J., He J., Zhang X., Role of extratropical cyclones in the recently observed increase in poleward moisture transport into the Arctic Ocean, Advances in Atmospheric Sciences, 2018, V. 35, pp. 85–94, DOI: 10.1007/s00376-017-7116-0.
- Walsh J. E., Intensified warming of the Arctic: Causes and impacts on middle latitudes, Global and Planetary Change, 2014, V. 117, pp. 52–63, DOI: 10.1016/j.gloplacha.2014.03.003.
- Wang W., Wang Y., Zhang J. et al., Assessment of the impact of Pacific inflow on sea surface temperature prior to the freeze-up period over the Bering Sea, Remote Sensing, 2024, V. 16, No. 1, Article 113, https://doi.org/10.3390/rs16010113.
- Wang Z., Ding Q., Wu R. et al., Role of atmospheric rivers in shaping long term Arctic moisture variability, Nature Communications, 2024, V. 15, Article 5505, https://doi.org/10.1038/s41467-024-49857-y.
- White D., Hinzman L., Alessaet L. et al., The Arctic freshwater system: Changes and impacts, J. Geophysical Research: Biogeosciences, 2007, V. 112, Article G04S54, DOI: 10.1029/2006JG000353.
- Woods C., Caballero R., The role of moist intrusions in winter Arctic warming and sea ice decline, J. Climate, 2016, V. 29, No. 12, pp. 4473–4485, DOI: 10.1175/JCLI-D-15-0773.1.
- Woods C., Caballero R., Svensson G., Large-scale circulation associated with moisture intrusions into the Arctic during winter, Geophysical Research Letters, 2013, V. 40, No. 17, pp. 4717–4721, DOI: 10.1002/grl.50912.
- Yang W., Magnusdottir G., Springtime extreme moisture transport into the Arctic and its impact on sea ice concentration, J. Geophysical Research: Atmospheres, 2017, V. 122, No. 10, pp. 5316–5329, DOI: 10.1002/2016JD026324.
- Ye K., Cohen J., Chen H. W. et al., Attributing climate and weather extremes to Northern Hemisphere sea ice and terrestrial snow: Progress, challenges and ways forward, npj Climate and Atmospheric Science, 2025, V. 8, No. 1, Article 166, https://doi.org/10.1038/s41612-025-01012-0.
- You C., Tjernström M., Devasthale A., Warm and moist air intrusions into the winter Arctic: a Lagrangian view on the near-surface energy budgets, Atmospheric Chemistry and Physics, 2022, V. 22, No. 12, pp. 8037–8057, DOI: 10.5194/acp-22-8037-2022.