The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records
We decompose the monthly global ocean bottom pressure (OBP) from GRACE(-FO) mass concentration solutions, with trends and seasonal harmonics removed from the signal, to extract 23 significant regional modes of variability. The 23 modes are analyzed and discussed considering sea-level anomalies (SLA)...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/8/1861 |
| _version_ | 1827626876567289856 |
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| author | Damien Delforge Olivier de Viron Fabien Durand Véronique Dehant |
| author_facet | Damien Delforge Olivier de Viron Fabien Durand Véronique Dehant |
| author_sort | Damien Delforge |
| collection | DOAJ |
| description | We decompose the monthly global ocean bottom pressure (OBP) from GRACE(-FO) mass concentration solutions, with trends and seasonal harmonics removed from the signal, to extract 23 significant regional modes of variability. The 23 modes are analyzed and discussed considering sea-level anomalies (SLA), wind stress curl (WSC), and major climate indices. A total of two-thirds of the patterns correspond to extratropical regions and are substantially documented in other global or regional studies. Over the equatorial band, the identified modes are unprecedented, with an amplitude ranging between 0.5 and 1 cm. With smaller amplitude than extratropical patterns, they appear to be less correlated with the local SLA or WSC; yet they present significantly coherent dynamics. The Pacific Ocean modes show significant correlations with the Pacific decadal oscillation (PDO) and El Niño southern oscillation (ENSO). |
| first_indexed | 2024-03-09T13:03:41Z |
| format | Article |
| id | doaj.art-54e79433f4e74ba0b07a33fc87ed3b76 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T13:03:41Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-54e79433f4e74ba0b07a33fc87ed3b762023-11-30T21:50:51ZengMDPI AGRemote Sensing2072-42922022-04-01148186110.3390/rs14081861The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On RecordsDamien Delforge0Olivier de Viron1Fabien Durand2Véronique Dehant3Littoral, Environnement et Sociétés, Université de La Rochelle and CNRS (UMR7266), 17000 La Rochelle, FranceLittoral, Environnement et Sociétés, Université de La Rochelle and CNRS (UMR7266), 17000 La Rochelle, FranceLEGOS (UMR5566), CNRS/CNES/IRD/UPS, 31400 Toulouse, FranceRoyal Observatory of Belgium, 1180 Brussels, BelgiumWe decompose the monthly global ocean bottom pressure (OBP) from GRACE(-FO) mass concentration solutions, with trends and seasonal harmonics removed from the signal, to extract 23 significant regional modes of variability. The 23 modes are analyzed and discussed considering sea-level anomalies (SLA), wind stress curl (WSC), and major climate indices. A total of two-thirds of the patterns correspond to extratropical regions and are substantially documented in other global or regional studies. Over the equatorial band, the identified modes are unprecedented, with an amplitude ranging between 0.5 and 1 cm. With smaller amplitude than extratropical patterns, they appear to be less correlated with the local SLA or WSC; yet they present significantly coherent dynamics. The Pacific Ocean modes show significant correlations with the Pacific decadal oscillation (PDO) and El Niño southern oscillation (ENSO).https://www.mdpi.com/2072-4292/14/8/1861GRACEoceanprincipal component analysiscorrelation analysissea level anomalywind stress curl |
| spellingShingle | Damien Delforge Olivier de Viron Fabien Durand Véronique Dehant The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records Remote Sensing GRACE ocean principal component analysis correlation analysis sea level anomaly wind stress curl |
| title | The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records |
| title_full | The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records |
| title_fullStr | The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records |
| title_full_unstemmed | The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records |
| title_short | The Global Patterns of Interannual and Intraseasonal Mass Variations in the Oceans from GRACE and GRACE Follow-On Records |
| title_sort | global patterns of interannual and intraseasonal mass variations in the oceans from grace and grace follow on records |
| topic | GRACE ocean principal component analysis correlation analysis sea level anomaly wind stress curl |
| url | https://www.mdpi.com/2072-4292/14/8/1861 |
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