Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E)
The surface radiation environment over the Southern Ocean within the region bound by 42.8° S to 78.7° S and 62.6° E to 157.7° W is summarised for three austral summers. This is done using ship-based measurements with the combination of downwelling radiation sensors and a cloud imager. We focus on ch...
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ftdoajarticles:oai:doaj.org/article:f5a1451584824038b176f1bbe34f9736 2023-05-15T18:07:33+02:00 Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) Haoran Wang Andrew R. Klekociuk W. John R. French Simon P. Alexander Tom A. Warner 2020-09-01T00:00:00Z https://doi.org/10.3390/atmos11090949 https://doaj.org/article/f5a1451584824038b176f1bbe34f9736 EN eng MDPI AG https://www.mdpi.com/2073-4433/11/9/949 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11090949 2073-4433 https://doaj.org/article/f5a1451584824038b176f1bbe34f9736 Atmosphere, Vol 11, Iss 949, p 949 (2020) Southern Ocean Ross Sea cloud shortwave radiation longwave radiation cloud radiative effect Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.3390/atmos11090949 2022-12-31T00:49:44Z The surface radiation environment over the Southern Ocean within the region bound by 42.8° S to 78.7° S and 62.6° E to 157.7° W is summarised for three austral summers. This is done using ship-based measurements with the combination of downwelling radiation sensors and a cloud imager. We focus on characterising the cloud radiative effect (CRE) under a variety of conditions, comparing observations in the open ocean with those in the sea ice zone. For comparison with our observed data, we obtained surface data from the European Centre for Medium-Range Weather Forecasts fifth reanalysis (ERA5). We found that the daily average cloud fraction was slightly lower in ERA5 compared with the observations (0.71 and 0.75, respectively). ERA5 also showed positive biases in the shortwave radiation effect and a negative bias in the longwave radiation effect. The observed mean surface CRE of −164 ± 100 Wm −2 was more negative than the mean surface CRE for ERA5 of −101 W m −2 . Article in Journal/Newspaper Ross Sea Sea ice Southern Ocean Directory of Open Access Journals: DOAJ Articles Southern Ocean Austral Ross Sea Atmosphere 11 9 949 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Southern Ocean Ross Sea cloud shortwave radiation longwave radiation cloud radiative effect Meteorology. Climatology QC851-999 |
spellingShingle |
Southern Ocean Ross Sea cloud shortwave radiation longwave radiation cloud radiative effect Meteorology. Climatology QC851-999 Haoran Wang Andrew R. Klekociuk W. John R. French Simon P. Alexander Tom A. Warner Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
topic_facet |
Southern Ocean Ross Sea cloud shortwave radiation longwave radiation cloud radiative effect Meteorology. Climatology QC851-999 |
description |
The surface radiation environment over the Southern Ocean within the region bound by 42.8° S to 78.7° S and 62.6° E to 157.7° W is summarised for three austral summers. This is done using ship-based measurements with the combination of downwelling radiation sensors and a cloud imager. We focus on characterising the cloud radiative effect (CRE) under a variety of conditions, comparing observations in the open ocean with those in the sea ice zone. For comparison with our observed data, we obtained surface data from the European Centre for Medium-Range Weather Forecasts fifth reanalysis (ERA5). We found that the daily average cloud fraction was slightly lower in ERA5 compared with the observations (0.71 and 0.75, respectively). ERA5 also showed positive biases in the shortwave radiation effect and a negative bias in the longwave radiation effect. The observed mean surface CRE of −164 ± 100 Wm −2 was more negative than the mean surface CRE for ERA5 of −101 W m −2 . |
format |
Article in Journal/Newspaper |
author |
Haoran Wang Andrew R. Klekociuk W. John R. French Simon P. Alexander Tom A. Warner |
author_facet |
Haoran Wang Andrew R. Klekociuk W. John R. French Simon P. Alexander Tom A. Warner |
author_sort |
Haoran Wang |
title |
Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
title_short |
Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
title_full |
Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
title_fullStr |
Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
title_full_unstemmed |
Measurements of Cloud Radiative Effect across the Southern Ocean (43° S–79° S, 63° E–158° E) |
title_sort |
measurements of cloud radiative effect across the southern ocean (43° s–79° s, 63° e–158° e) |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11090949 https://doaj.org/article/f5a1451584824038b176f1bbe34f9736 |
geographic |
Southern Ocean Austral Ross Sea |
geographic_facet |
Southern Ocean Austral Ross Sea |
genre |
Ross Sea Sea ice Southern Ocean |
genre_facet |
Ross Sea Sea ice Southern Ocean |
op_source |
Atmosphere, Vol 11, Iss 949, p 949 (2020) |
op_relation |
https://www.mdpi.com/2073-4433/11/9/949 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11090949 2073-4433 https://doaj.org/article/f5a1451584824038b176f1bbe34f9736 |
op_doi |
https://doi.org/10.3390/atmos11090949 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
9 |
container_start_page |
949 |
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1766179762445746176 |