Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W)
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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ftunivtasmania:oai:eprints.utas.edu.au:40622 2023-05-15T18:07:33+02:00 Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) Wang, H Klekociuk, AR French, WJR Alexander, SP Warner, TA 2020 application/pdf https://eprints.utas.edu.au/40622/ https://eprints.utas.edu.au/40622/1/142726%20-%20Measurements%20of%20cloud%20radiative%20effect%20across%20the%20Southern%20Ocean.pdf en eng MDPIAG https://eprints.utas.edu.au/40622/1/142726%20-%20Measurements%20of%20cloud%20radiative%20effect%20across%20the%20Southern%20Ocean.pdf Wang, H, Klekociuk, AR, French, WJR, Alexander, SP and Warner, TA 2020 , 'Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W)' , Atmosphere, vol. 11, no. 9 , pp. 1-22 , doi:10.3390/atmos11090949 <http://dx.doi.org/10.3390/atmos11090949>. clouds cloud radiative effect Southern Ocean Ross Sea shortwave radiation longwave radiation Article PeerReviewed 2020 ftunivtasmania https://doi.org/10.3390/atmos11090949 2022-01-24T23:18:21Z 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 University of Tasmania: UTas ePrints Austral Ross Sea Southern Ocean Atmosphere 11 9 949 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
clouds cloud radiative effect Southern Ocean Ross Sea shortwave radiation longwave radiation |
spellingShingle |
clouds cloud radiative effect Southern Ocean Ross Sea shortwave radiation longwave radiation Wang, H Klekociuk, AR French, WJR Alexander, SP Warner, TA Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
topic_facet |
clouds cloud radiative effect Southern Ocean Ross Sea shortwave radiation longwave radiation |
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 |
Wang, H Klekociuk, AR French, WJR Alexander, SP Warner, TA |
author_facet |
Wang, H Klekociuk, AR French, WJR Alexander, SP Warner, TA |
author_sort |
Wang, H |
title |
Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
title_short |
Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
title_full |
Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
title_fullStr |
Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
title_full_unstemmed |
Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W) |
title_sort |
measurements of cloud radiative effect across the southern ocean (43° s–79° s, 63° e–158° w) |
publisher |
MDPIAG |
publishDate |
2020 |
url |
https://eprints.utas.edu.au/40622/ https://eprints.utas.edu.au/40622/1/142726%20-%20Measurements%20of%20cloud%20radiative%20effect%20across%20the%20Southern%20Ocean.pdf |
geographic |
Austral Ross Sea Southern Ocean |
geographic_facet |
Austral Ross Sea Southern Ocean |
genre |
Ross Sea Sea ice Southern Ocean |
genre_facet |
Ross Sea Sea ice Southern Ocean |
op_relation |
https://eprints.utas.edu.au/40622/1/142726%20-%20Measurements%20of%20cloud%20radiative%20effect%20across%20the%20Southern%20Ocean.pdf Wang, H, Klekociuk, AR, French, WJR, Alexander, SP and Warner, TA 2020 , 'Measurements of cloud radiative effect across the Southern Ocean (43° S–79° S, 63° E–158° W)' , Atmosphere, vol. 11, no. 9 , pp. 1-22 , doi:10.3390/atmos11090949 <http://dx.doi.org/10.3390/atmos11090949>. |
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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1766179760266805248 |