Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study)
The impact of aerosol spatio-temporal variability on the Arctic radiative budget is not fully constrained. This case study focuses on the intra-Arctic modification of long-range transported aerosol and its direct aerosol radiative effect (ARE). Different types of air-borne and ground-based remote se...
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ftmdpi:oai:mdpi.com:/2072-4292/12/13/2112/ 2023-08-20T03:59:17+02:00 Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) Konstantina Nakoudi Christoph Ritter Christine Böckmann Daniel Kunkel Oliver Eppers Vladimir Rozanov Linlu Mei Vasileios Pefanis Evelyn Jäkel Andreas Herber Marion Maturilli Roland Neuber agris 2020-07-01 application/pdf https://doi.org/10.3390/rs12132112 EN eng Multidisciplinary Digital Publishing Institute Remote Sensing and Geo-Spatial Science https://dx.doi.org/10.3390/rs12132112 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 12; Issue 13; Pages: 2112 Arctic aerosol aerosol transport aged aerosol aerosol modification aerosol optical properties aerosol microphysical properties aerosol remote sensing microphysical inversion aerosol radiative effect Arctic radiative budget Text 2020 ftmdpi https://doi.org/10.3390/rs12132112 2023-07-31T23:43:09Z The impact of aerosol spatio-temporal variability on the Arctic radiative budget is not fully constrained. This case study focuses on the intra-Arctic modification of long-range transported aerosol and its direct aerosol radiative effect (ARE). Different types of air-borne and ground-based remote sensing observations (from Lidar and sun-photometer) revealed a high tropospheric aerosol transport episode over two parts of the European Arctic in April 2018. By incorporating the derived aerosol optical and microphysical properties into a radiative transfer model, we assessed the ARE over the two locations. Our study displayed that even in neighboring Arctic upper tropospheric levels, aged aerosol was transformed due to the interplay of removal processes (nucleation scavenging and dry deposition) and alteration of the aerosol source regions (northeast Asia and north Europe). Along the intra-Arctic transport, the coarse aerosol mode was depleted and the visible wavelength Lidar ratio (LR) increased significantly (from 15 to 64–82 sr). However, the aerosol modifications were not reflected on the ARE. More specifically, the short-wave (SW) atmospheric column ARE amounted to +4.4 - +4.9 W m−2 over the ice-covered Fram Strait and +4.5 W m−2 over the snow-covered Ny-Ålesund. Over both locations, top-of-atmosphere (TOA) warming was accompanied by surface cooling. These similarities can be attributed to the predominant accumulation mode, which drives the SW radiative budget, as well as to the similar layer altitude, solar geometry, and surface albedo conditions over both locations. However, in the context of retreating sea ice, the ARE may change even along individual transport episodes due to the ice albedo feedback. Text albedo Arctic Fram Strait Ny Ålesund Ny-Ålesund Sea ice MDPI Open Access Publishing Arctic Ny-Ålesund Remote Sensing 12 13 2112 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Arctic aerosol aerosol transport aged aerosol aerosol modification aerosol optical properties aerosol microphysical properties aerosol remote sensing microphysical inversion aerosol radiative effect Arctic radiative budget |
spellingShingle |
Arctic aerosol aerosol transport aged aerosol aerosol modification aerosol optical properties aerosol microphysical properties aerosol remote sensing microphysical inversion aerosol radiative effect Arctic radiative budget Konstantina Nakoudi Christoph Ritter Christine Böckmann Daniel Kunkel Oliver Eppers Vladimir Rozanov Linlu Mei Vasileios Pefanis Evelyn Jäkel Andreas Herber Marion Maturilli Roland Neuber Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
topic_facet |
Arctic aerosol aerosol transport aged aerosol aerosol modification aerosol optical properties aerosol microphysical properties aerosol remote sensing microphysical inversion aerosol radiative effect Arctic radiative budget |
description |
The impact of aerosol spatio-temporal variability on the Arctic radiative budget is not fully constrained. This case study focuses on the intra-Arctic modification of long-range transported aerosol and its direct aerosol radiative effect (ARE). Different types of air-borne and ground-based remote sensing observations (from Lidar and sun-photometer) revealed a high tropospheric aerosol transport episode over two parts of the European Arctic in April 2018. By incorporating the derived aerosol optical and microphysical properties into a radiative transfer model, we assessed the ARE over the two locations. Our study displayed that even in neighboring Arctic upper tropospheric levels, aged aerosol was transformed due to the interplay of removal processes (nucleation scavenging and dry deposition) and alteration of the aerosol source regions (northeast Asia and north Europe). Along the intra-Arctic transport, the coarse aerosol mode was depleted and the visible wavelength Lidar ratio (LR) increased significantly (from 15 to 64–82 sr). However, the aerosol modifications were not reflected on the ARE. More specifically, the short-wave (SW) atmospheric column ARE amounted to +4.4 - +4.9 W m−2 over the ice-covered Fram Strait and +4.5 W m−2 over the snow-covered Ny-Ålesund. Over both locations, top-of-atmosphere (TOA) warming was accompanied by surface cooling. These similarities can be attributed to the predominant accumulation mode, which drives the SW radiative budget, as well as to the similar layer altitude, solar geometry, and surface albedo conditions over both locations. However, in the context of retreating sea ice, the ARE may change even along individual transport episodes due to the ice albedo feedback. |
format |
Text |
author |
Konstantina Nakoudi Christoph Ritter Christine Böckmann Daniel Kunkel Oliver Eppers Vladimir Rozanov Linlu Mei Vasileios Pefanis Evelyn Jäkel Andreas Herber Marion Maturilli Roland Neuber |
author_facet |
Konstantina Nakoudi Christoph Ritter Christine Böckmann Daniel Kunkel Oliver Eppers Vladimir Rozanov Linlu Mei Vasileios Pefanis Evelyn Jäkel Andreas Herber Marion Maturilli Roland Neuber |
author_sort |
Konstantina Nakoudi |
title |
Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
title_short |
Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
title_full |
Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
title_fullStr |
Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
title_full_unstemmed |
Does the Intra-Arctic Modification of Long-Range Transported Aerosol Affect the Local Radiative Budget? (A Case Study) |
title_sort |
does the intra-arctic modification of long-range transported aerosol affect the local radiative budget? (a case study) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12132112 |
op_coverage |
agris |
geographic |
Arctic Ny-Ålesund |
geographic_facet |
Arctic Ny-Ålesund |
genre |
albedo Arctic Fram Strait Ny Ålesund Ny-Ålesund Sea ice |
genre_facet |
albedo Arctic Fram Strait Ny Ålesund Ny-Ålesund Sea ice |
op_source |
Remote Sensing; Volume 12; Issue 13; Pages: 2112 |
op_relation |
Remote Sensing and Geo-Spatial Science https://dx.doi.org/10.3390/rs12132112 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs12132112 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
13 |
container_start_page |
2112 |
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1774724933843156992 |