Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties
Usually the Arctic is relatively free of anthropogenic influence in summer, which means that particles from natural sources can be the most significant nuclei for cloud droplets. However, this is not the case during anomalously warm-air intrusions when the air origin comes from lower latitudes. In t...
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ftnkunivathens:oai:lib.uoa.gr:uoadl:3068463 2024-02-11T10:01:03+01:00 Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties Bossioli, E. Sotiropoulou, G. Methymaki, G. Tombrou, M. 2021-01-01 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3068463 Αγγλικά English eng uoadl:3068463 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3068463 scientific_publication_article Επιστημονική δημοσίευση - Άρθρο Περιοδικού Scientific publication - Journal Article 2021 ftnkunivathens 2024-01-18T19:01:32Z Usually the Arctic is relatively free of anthropogenic influence in summer, which means that particles from natural sources can be the most significant nuclei for cloud droplets. However, this is not the case during anomalously warm-air intrusions when the air origin comes from lower latitudes. In this modeling study, we investigate the effect of mid-latitude pollution inflow (anthropogenic and biomass burning [BB]) on the aerosol-cloud-radiation interactions during an episode of extreme warm-air advection. This particular episode resulted in anomalously high air temperatures over the East Siberian Sea and has accelerated sea-ice melting. The impact of different emission sources on aerosol vertical distribution, chemical composition, cloud formation, and radiation budget is examined using the Weather Research and Forecasting model, fully coupled with chemistry. Elevated turbulent clouds that occurred at the beginning of the episode are found to be more sensitive to aerosol variations and their negative feedback on supersaturation, compared to stably stratified fog layers that were dominant during the core period. Omission of either anthropogenic or BB source results in decreased cloud liquid water and cloud droplet concentrations; however, these changes are not substantially large to significantly modify the net surface radiation budget. Significant reduction of the net surface radiation is only observed if both anthropogenic and BB transported pollution reaches the area of interest. © 2021. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper Arctic East Siberian Sea Sea ice Pergamos - Library and Information Center of National and Kapodistrian University of Athens Arctic East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) |
institution |
Open Polar |
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Pergamos - Library and Information Center of National and Kapodistrian University of Athens |
op_collection_id |
ftnkunivathens |
language |
English |
description |
Usually the Arctic is relatively free of anthropogenic influence in summer, which means that particles from natural sources can be the most significant nuclei for cloud droplets. However, this is not the case during anomalously warm-air intrusions when the air origin comes from lower latitudes. In this modeling study, we investigate the effect of mid-latitude pollution inflow (anthropogenic and biomass burning [BB]) on the aerosol-cloud-radiation interactions during an episode of extreme warm-air advection. This particular episode resulted in anomalously high air temperatures over the East Siberian Sea and has accelerated sea-ice melting. The impact of different emission sources on aerosol vertical distribution, chemical composition, cloud formation, and radiation budget is examined using the Weather Research and Forecasting model, fully coupled with chemistry. Elevated turbulent clouds that occurred at the beginning of the episode are found to be more sensitive to aerosol variations and their negative feedback on supersaturation, compared to stably stratified fog layers that were dominant during the core period. Omission of either anthropogenic or BB source results in decreased cloud liquid water and cloud droplet concentrations; however, these changes are not substantially large to significantly modify the net surface radiation budget. Significant reduction of the net surface radiation is only observed if both anthropogenic and BB transported pollution reaches the area of interest. © 2021. American Geophysical Union. All Rights Reserved. |
format |
Article in Journal/Newspaper |
author |
Bossioli, E. Sotiropoulou, G. Methymaki, G. Tombrou, M. |
spellingShingle |
Bossioli, E. Sotiropoulou, G. Methymaki, G. Tombrou, M. Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
author_facet |
Bossioli, E. Sotiropoulou, G. Methymaki, G. Tombrou, M. |
author_sort |
Bossioli, E. |
title |
Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
title_short |
Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
title_full |
Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
title_fullStr |
Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
title_full_unstemmed |
Modeling Extreme Warm-Air Advection in the Arctic During Summer: The Effect of Mid-Latitude Pollution Inflow on Cloud Properties |
title_sort |
modeling extreme warm-air advection in the arctic during summer: the effect of mid-latitude pollution inflow on cloud properties |
publishDate |
2021 |
url |
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3068463 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic East Siberian Sea |
geographic_facet |
Arctic East Siberian Sea |
genre |
Arctic East Siberian Sea Sea ice |
genre_facet |
Arctic East Siberian Sea Sea ice |
op_relation |
uoadl:3068463 https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3068463 |
_version_ |
1790596775718944768 |