Climate State Dependence of Arctic Precipitation Variability
Arctic precipitation is projected to increase more rapidly than the global mean in warming climates. However, warming-induced changes in the variability of Arctic precipitation, which are related to surface evaporation and poleward moisture transport (PMT), are currently largely unknown. This study...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://research.wur.nl/en/publications/climate-state-dependence-of-arctic-precipitation-variability https://doi.org/10.1029/2019JD031772 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/564311 2024-02-11T09:59:16+01:00 Climate State Dependence of Arctic Precipitation Variability Bogerd, L. van der Linden, E.C. Krikken, F. Bintanja, R. 2020 application/pdf https://research.wur.nl/en/publications/climate-state-dependence-of-arctic-precipitation-variability https://doi.org/10.1029/2019JD031772 en eng https://edepot.wur.nl/521974 https://research.wur.nl/en/publications/climate-state-dependence-of-arctic-precipitation-variability doi:10.1029/2019JD031772 https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research Journal of Geophysical Research: Atmospheres 125 (2020) 8 ISSN: 2169-897X Arctic climate variability hydrological cycle precipitation Article/Letter to editor 2020 ftunivwagenin https://doi.org/10.1029/2019JD031772 2024-01-24T23:15:42Z Arctic precipitation is projected to increase more rapidly than the global mean in warming climates. However, warming-induced changes in the variability of Arctic precipitation, which are related to surface evaporation and poleward moisture transport (PMT), are currently largely unknown. This study compares the precipitation variability in different quasi-equilibrium climates simulated by a global climate model (EC-Earth) and studies the underlying mechanisms. Five quasi-equilibrium simulations of 400 years length forced with a broad range of CO2 concentrations (0.25, 0.5, 1, 2, and 4 times the current global mean) were analyzed. PMT is the dominant source of Arctic precipitation variability in colder climates when the ocean in the Arctic basin is completely covered by sea ice year-round. Arctic precipitation variability increases from colder to warmer climates, primarily in summer. In summer, the increasingly stronger relation between Arctic sea level pressure variability and precipitation variability toward warmer climates enhances variability. In winter, the severe increase in mean precipitation (due to enhanced evaporation) exerts a comparatively small increase in variability, and precipitation variability is modulated by both PMT and evaporation, which oppose each other as they both affect the vertical and meridional moisture gradients. Article in Journal/Newspaper Arctic Arctic Basin Arctic Sea ice Wageningen UR (University & Research Centre): Digital Library Arctic Journal of Geophysical Research: Atmospheres 125 8 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Arctic climate variability hydrological cycle precipitation |
spellingShingle |
Arctic climate variability hydrological cycle precipitation Bogerd, L. van der Linden, E.C. Krikken, F. Bintanja, R. Climate State Dependence of Arctic Precipitation Variability |
topic_facet |
Arctic climate variability hydrological cycle precipitation |
description |
Arctic precipitation is projected to increase more rapidly than the global mean in warming climates. However, warming-induced changes in the variability of Arctic precipitation, which are related to surface evaporation and poleward moisture transport (PMT), are currently largely unknown. This study compares the precipitation variability in different quasi-equilibrium climates simulated by a global climate model (EC-Earth) and studies the underlying mechanisms. Five quasi-equilibrium simulations of 400 years length forced with a broad range of CO2 concentrations (0.25, 0.5, 1, 2, and 4 times the current global mean) were analyzed. PMT is the dominant source of Arctic precipitation variability in colder climates when the ocean in the Arctic basin is completely covered by sea ice year-round. Arctic precipitation variability increases from colder to warmer climates, primarily in summer. In summer, the increasingly stronger relation between Arctic sea level pressure variability and precipitation variability toward warmer climates enhances variability. In winter, the severe increase in mean precipitation (due to enhanced evaporation) exerts a comparatively small increase in variability, and precipitation variability is modulated by both PMT and evaporation, which oppose each other as they both affect the vertical and meridional moisture gradients. |
format |
Article in Journal/Newspaper |
author |
Bogerd, L. van der Linden, E.C. Krikken, F. Bintanja, R. |
author_facet |
Bogerd, L. van der Linden, E.C. Krikken, F. Bintanja, R. |
author_sort |
Bogerd, L. |
title |
Climate State Dependence of Arctic Precipitation Variability |
title_short |
Climate State Dependence of Arctic Precipitation Variability |
title_full |
Climate State Dependence of Arctic Precipitation Variability |
title_fullStr |
Climate State Dependence of Arctic Precipitation Variability |
title_full_unstemmed |
Climate State Dependence of Arctic Precipitation Variability |
title_sort |
climate state dependence of arctic precipitation variability |
publishDate |
2020 |
url |
https://research.wur.nl/en/publications/climate-state-dependence-of-arctic-precipitation-variability https://doi.org/10.1029/2019JD031772 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Basin Arctic Sea ice |
genre_facet |
Arctic Arctic Basin Arctic Sea ice |
op_source |
Journal of Geophysical Research: Atmospheres 125 (2020) 8 ISSN: 2169-897X |
op_relation |
https://edepot.wur.nl/521974 https://research.wur.nl/en/publications/climate-state-dependence-of-arctic-precipitation-variability doi:10.1029/2019JD031772 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research |
op_doi |
https://doi.org/10.1029/2019JD031772 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
125 |
container_issue |
8 |
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1790595220793982976 |