Meteorological conditions during the MOSAiC expedition

This article sets the near-surface meteorological conditions during the Multidisciplinary drifting Observatory for the Study of Arctic Climate expedition in the context of the interannual variability and extremes within the past 4 decades. Hourly ERA5 reanalysis data for the Polarstern trajectory fo...

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Published in:Elementa: Science of the Anthropocene
Main Authors: Rinke, Annette, Cassano, John J., Cassano, Elizabeth N., Jaiser, Ralf, Handorf, Dörthe
Format: Article in Journal/Newspaper
Language:unknown
Published: 2021
Subjects:
Online Access:https://epic.awi.de/id/eprint/54648/
https://doi.org/10.1525/elementa.2021.00023
https://hdl.handle.net/10013/epic.1c440785-2263-4780-9747-a37097c9f5cc
id ftawi:oai:epic.awi.de:54648
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spelling ftawi:oai:epic.awi.de:54648 2024-09-15T18:23:49+00:00 Meteorological conditions during the MOSAiC expedition Rinke, Annette Cassano, John J. Cassano, Elizabeth N. Jaiser, Ralf Handorf, Dörthe 2021 https://epic.awi.de/id/eprint/54648/ https://doi.org/10.1525/elementa.2021.00023 https://hdl.handle.net/10013/epic.1c440785-2263-4780-9747-a37097c9f5cc unknown Rinke, A. orcid:0000-0002-6685-9219 , Cassano, J. J. , Cassano, E. N. , Jaiser, R. orcid:0000-0002-5685-9637 and Handorf, D. orcid:0000-0002-3305-6882 (2021) Meteorological conditions during the MOSAiC expedition , Elementa: Science of the Anthropocene, 9 , p. 1 . doi:10.1525/elementa.2021.00023 <https://doi.org/10.1525/elementa.2021.00023> , hdl:10013/epic.1c440785-2263-4780-9747-a37097c9f5cc EPIC3Elementa: Science of the Anthropocene, 9, pp. 1, ISSN: 2325-1026 Article isiRev 2021 ftawi https://doi.org/10.1525/elementa.2021.00023 2024-06-24T04:27:29Z This article sets the near-surface meteorological conditions during the Multidisciplinary drifting Observatory for the Study of Arctic Climate expedition in the context of the interannual variability and extremes within the past 4 decades. Hourly ERA5 reanalysis data for the Polarstern trajectory for 1979-2020 are analyzed. The conditions were relatively normal given that they were mostly within the interquartile range of the preceding 4 decades. Nevertheless, some anomalous and even record-breaking conditions did occur, particularly during synoptic events. Extreme cases of warm, moist air transported from the northern North Atlantic or northwestern Siberia into the Arctic were identified from late fall until early spring. Daily temperature and total column water vapor were classified as being among the top-ranking warmest/wettest days or even record-breaking based on the full record. Associated with this, the longwave radiative fluxes at the surface were extremely anomalous for these winter cases. The winter and spring period was characterized by more frequent storm events and median cyclone intensity ranking in the top 25th percentile of the full record. During summer, near melting point conditions were more than a month longer than usual, and the July and August 2020 mean conditions were the all-time warmest and wettest. These record conditions near the Polarstern were embedded in large positive temperature and moisture anomalies over the whole central Arctic. In contrast, unusually cold conditions occurred during the beginning of November 2019 and in early March 2020, related to the Arctic Oscillation. In March, this was linked with anomalously strong and persistent northerly winds associated with frequent cyclone occurrence to the southeast of the Polarstern. Article in Journal/Newspaper North Atlantic Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Elementa: Science of the Anthropocene 9 1
institution Open Polar
collection Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
op_collection_id ftawi
language unknown
description This article sets the near-surface meteorological conditions during the Multidisciplinary drifting Observatory for the Study of Arctic Climate expedition in the context of the interannual variability and extremes within the past 4 decades. Hourly ERA5 reanalysis data for the Polarstern trajectory for 1979-2020 are analyzed. The conditions were relatively normal given that they were mostly within the interquartile range of the preceding 4 decades. Nevertheless, some anomalous and even record-breaking conditions did occur, particularly during synoptic events. Extreme cases of warm, moist air transported from the northern North Atlantic or northwestern Siberia into the Arctic were identified from late fall until early spring. Daily temperature and total column water vapor were classified as being among the top-ranking warmest/wettest days or even record-breaking based on the full record. Associated with this, the longwave radiative fluxes at the surface were extremely anomalous for these winter cases. The winter and spring period was characterized by more frequent storm events and median cyclone intensity ranking in the top 25th percentile of the full record. During summer, near melting point conditions were more than a month longer than usual, and the July and August 2020 mean conditions were the all-time warmest and wettest. These record conditions near the Polarstern were embedded in large positive temperature and moisture anomalies over the whole central Arctic. In contrast, unusually cold conditions occurred during the beginning of November 2019 and in early March 2020, related to the Arctic Oscillation. In March, this was linked with anomalously strong and persistent northerly winds associated with frequent cyclone occurrence to the southeast of the Polarstern.
format Article in Journal/Newspaper
author Rinke, Annette
Cassano, John J.
Cassano, Elizabeth N.
Jaiser, Ralf
Handorf, Dörthe
spellingShingle Rinke, Annette
Cassano, John J.
Cassano, Elizabeth N.
Jaiser, Ralf
Handorf, Dörthe
Meteorological conditions during the MOSAiC expedition
author_facet Rinke, Annette
Cassano, John J.
Cassano, Elizabeth N.
Jaiser, Ralf
Handorf, Dörthe
author_sort Rinke, Annette
title Meteorological conditions during the MOSAiC expedition
title_short Meteorological conditions during the MOSAiC expedition
title_full Meteorological conditions during the MOSAiC expedition
title_fullStr Meteorological conditions during the MOSAiC expedition
title_full_unstemmed Meteorological conditions during the MOSAiC expedition
title_sort meteorological conditions during the mosaic expedition
publishDate 2021
url https://epic.awi.de/id/eprint/54648/
https://doi.org/10.1525/elementa.2021.00023
https://hdl.handle.net/10013/epic.1c440785-2263-4780-9747-a37097c9f5cc
genre North Atlantic
Siberia
genre_facet North Atlantic
Siberia
op_source EPIC3Elementa: Science of the Anthropocene, 9, pp. 1, ISSN: 2325-1026
op_relation Rinke, A. orcid:0000-0002-6685-9219 , Cassano, J. J. , Cassano, E. N. , Jaiser, R. orcid:0000-0002-5685-9637 and Handorf, D. orcid:0000-0002-3305-6882 (2021) Meteorological conditions during the MOSAiC expedition , Elementa: Science of the Anthropocene, 9 , p. 1 . doi:10.1525/elementa.2021.00023 <https://doi.org/10.1525/elementa.2021.00023> , hdl:10013/epic.1c440785-2263-4780-9747-a37097c9f5cc
op_doi https://doi.org/10.1525/elementa.2021.00023
container_title Elementa: Science of the Anthropocene
container_volume 9
container_issue 1
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