Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study
A regional ocean reanalysis system of China coastal waters and adjacent seas, called CORA (China ocean reanalysis), has been recently developed at the National Marine Data and Information Service (NMDIS). In this study, based on CORA, the impact of Argo profiles on the regional reanalysis is evaluat...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2015/793825 |
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| author | Caixia Shao Lili Xuan Yingzhi Cao Xiaojian Cui Siyu Gao |
| author_facet | Caixia Shao Lili Xuan Yingzhi Cao Xiaojian Cui Siyu Gao |
| author_sort | Caixia Shao |
| collection | DOAJ |
| description | A regional ocean reanalysis system of China coastal waters and adjacent seas, called CORA (China ocean reanalysis), has been recently developed at the National Marine Data and Information Service (NMDIS). In this study, based on CORA, the impact of Argo profiles on the regional reanalysis is evaluated using a twin-experiment approach. It is found that, by assimilating Argo observations, the reanalysis quality is much improved: the root mean square (RMS) error of temperature and salinity can be further reduced by about 10% and the RMS error of current can be further reduced by 18%, compared to the case only assimilating conventional in situ temperature and salinity observations. Consistent with the unique feature of Argo observations, the temperature is improved in all levels and the largest improvement of salinity happens in the deep ocean. Argo profile data have a significant impact on the regional ocean reanalysis through improvements of both hydrographic and dynamic fields. |
| format | Article |
| id | doaj-art-6fbabf0bc0f246b58bac335e6ef86113 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-6fbabf0bc0f246b58bac335e6ef861132025-08-20T03:34:04ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/793825793825Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment StudyCaixia Shao0Lili Xuan1Yingzhi Cao2Xiaojian Cui3Siyu Gao4National University of Defense Technology, Hunan, Changsha 410073, ChinaKey Laboratory of Marine Environmental Information Technology, SOA, National Marine Data and Information Service, Tianjin 300171, ChinaKey Laboratory of Marine Environmental Information Technology, SOA, National Marine Data and Information Service, Tianjin 300171, ChinaKey Laboratory of Marine Environmental Information Technology, SOA, National Marine Data and Information Service, Tianjin 300171, ChinaKey Laboratory of Marine Environmental Information Technology, SOA, National Marine Data and Information Service, Tianjin 300171, ChinaA regional ocean reanalysis system of China coastal waters and adjacent seas, called CORA (China ocean reanalysis), has been recently developed at the National Marine Data and Information Service (NMDIS). In this study, based on CORA, the impact of Argo profiles on the regional reanalysis is evaluated using a twin-experiment approach. It is found that, by assimilating Argo observations, the reanalysis quality is much improved: the root mean square (RMS) error of temperature and salinity can be further reduced by about 10% and the RMS error of current can be further reduced by 18%, compared to the case only assimilating conventional in situ temperature and salinity observations. Consistent with the unique feature of Argo observations, the temperature is improved in all levels and the largest improvement of salinity happens in the deep ocean. Argo profile data have a significant impact on the regional ocean reanalysis through improvements of both hydrographic and dynamic fields.http://dx.doi.org/10.1155/2015/793825 |
| spellingShingle | Caixia Shao Lili Xuan Yingzhi Cao Xiaojian Cui Siyu Gao Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study Advances in Meteorology |
| title | Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study |
| title_full | Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study |
| title_fullStr | Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study |
| title_full_unstemmed | Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study |
| title_short | Impact of Argo Observation on the Regional Ocean Reanalysis of China Coastal Waters and Adjacent Seas: A Twin-Experiment Study |
| title_sort | impact of argo observation on the regional ocean reanalysis of china coastal waters and adjacent seas a twin experiment study |
| url | http://dx.doi.org/10.1155/2015/793825 |
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