Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling
This study investigates the effects of atmosphere-ocean coupling for medium-range forecasts by using coupled numerical weather prediction (NWP) experiments based on the unified model (UM) on a case study of the 2016 heatwave over the Korean Peninsula. Atmospheric nudging experiments were carried out...
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ftdoajarticles:oai:doaj.org/article:e64ed2be26824a6ca02518450cc6fd3b 2023-05-15T16:59:20+02:00 Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling Eun-Jung Kim Charline Marzin Sean F. Milton Kyung-On Boo Yoonjae Kim Jiyoung Oh Hyun-Suk Kang 2020-11-01T00:00:00Z https://doi.org/10.3390/atmos11121275 https://doaj.org/article/e64ed2be26824a6ca02518450cc6fd3b EN eng MDPI AG https://www.mdpi.com/2073-4433/11/12/1275 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11121275 2073-4433 https://doaj.org/article/e64ed2be26824a6ca02518450cc6fd3b Atmosphere, Vol 11, Iss 1275, p 1275 (2020) atmosphere-ocean coupling heat wave nudged simulation Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.3390/atmos11121275 2022-12-31T10:32:45Z This study investigates the effects of atmosphere-ocean coupling for medium-range forecasts by using coupled numerical weather prediction (NWP) experiments based on the unified model (UM) on a case study of the 2016 heatwave over the Korean Peninsula. Atmospheric nudging experiments were carried out to determine the key regions which may have large impacts on the forecasts of the heat wave. The results of the nudging experiments suggest that key forcing from the Mongolia region gives the largest impact to this case by causing a transport of warm air from the northwest part of Korea. Moreover, the Pacific region shows an important role in the global circulation in nudging experiments. Results from the atmosphere-ocean coupled model show no clear benefit for the extreme heat wave temperatures in this case. In addition, more model development seems to be needed to improve the representation of sea surface temperature (SST) in some key areas. Nevertheless, it is confirmed that the atmosphere-ocean coupled simulation produces a better representation of aspects of the large-scale flow such as the blocking high over the Kamchatka Peninsula, the high pressure system in the northwest Pacific and Hadley circulation. The results presented in this study show that atmosphere-ocean coupling can be an important way to improve the deterministic model forecasts as the lead time increases beyond a few days . Article in Journal/Newspaper Kamchatka Kamchatka Peninsula Directory of Open Access Journals: DOAJ Articles Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Pacific Atmosphere 11 12 1275 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmosphere-ocean coupling heat wave nudged simulation Meteorology. Climatology QC851-999 |
spellingShingle |
atmosphere-ocean coupling heat wave nudged simulation Meteorology. Climatology QC851-999 Eun-Jung Kim Charline Marzin Sean F. Milton Kyung-On Boo Yoonjae Kim Jiyoung Oh Hyun-Suk Kang Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
topic_facet |
atmosphere-ocean coupling heat wave nudged simulation Meteorology. Climatology QC851-999 |
description |
This study investigates the effects of atmosphere-ocean coupling for medium-range forecasts by using coupled numerical weather prediction (NWP) experiments based on the unified model (UM) on a case study of the 2016 heatwave over the Korean Peninsula. Atmospheric nudging experiments were carried out to determine the key regions which may have large impacts on the forecasts of the heat wave. The results of the nudging experiments suggest that key forcing from the Mongolia region gives the largest impact to this case by causing a transport of warm air from the northwest part of Korea. Moreover, the Pacific region shows an important role in the global circulation in nudging experiments. Results from the atmosphere-ocean coupled model show no clear benefit for the extreme heat wave temperatures in this case. In addition, more model development seems to be needed to improve the representation of sea surface temperature (SST) in some key areas. Nevertheless, it is confirmed that the atmosphere-ocean coupled simulation produces a better representation of aspects of the large-scale flow such as the blocking high over the Kamchatka Peninsula, the high pressure system in the northwest Pacific and Hadley circulation. The results presented in this study show that atmosphere-ocean coupling can be an important way to improve the deterministic model forecasts as the lead time increases beyond a few days . |
format |
Article in Journal/Newspaper |
author |
Eun-Jung Kim Charline Marzin Sean F. Milton Kyung-On Boo Yoonjae Kim Jiyoung Oh Hyun-Suk Kang |
author_facet |
Eun-Jung Kim Charline Marzin Sean F. Milton Kyung-On Boo Yoonjae Kim Jiyoung Oh Hyun-Suk Kang |
author_sort |
Eun-Jung Kim |
title |
Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
title_short |
Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
title_full |
Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
title_fullStr |
Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
title_full_unstemmed |
Representation of the 2016 Korean Heatwave in the Unified Model Global NWP Forecasts: The Impact of Remotely Forced Model Errors and Atmosphere-Ocean Coupling |
title_sort |
representation of the 2016 korean heatwave in the unified model global nwp forecasts: the impact of remotely forced model errors and atmosphere-ocean coupling |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11121275 https://doaj.org/article/e64ed2be26824a6ca02518450cc6fd3b |
long_lat |
ENVELOPE(160.000,160.000,56.000,56.000) |
geographic |
Kamchatka Peninsula Pacific |
geographic_facet |
Kamchatka Peninsula Pacific |
genre |
Kamchatka Kamchatka Peninsula |
genre_facet |
Kamchatka Kamchatka Peninsula |
op_source |
Atmosphere, Vol 11, Iss 1275, p 1275 (2020) |
op_relation |
https://www.mdpi.com/2073-4433/11/12/1275 https://doaj.org/toc/2073-4433 doi:10.3390/atmos11121275 2073-4433 https://doaj.org/article/e64ed2be26824a6ca02518450cc6fd3b |
op_doi |
https://doi.org/10.3390/atmos11121275 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
12 |
container_start_page |
1275 |
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1766051576611340288 |