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Author |
Bonnefond P., M. Calzas & C. Brachet. |
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Mission FOAM 2018, janvier 2018 |
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2018 |
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yes |
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7625 |
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Report |
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2019 |
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688 |
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Bachelor's thesis |
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7740 |
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Book Chapter |
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2019 |
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688 |
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Bachelor's thesis |
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7741 |
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Author |
Téchiné P., G. Alory, L. Testut, L'us-imago Brest &Amp; Nouméa Et La Dt/insu Brest. |
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Title |
ROSAME / SSS – Gestion d'observations océanographiques |
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Peer-reviewed symposium |
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2020 |
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yes |
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7746 |
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Author |
Téchiné P., L. Testut. |
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Title |
Préparation HCERES Groupe numérique liée à la donnée scientifique |
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Report |
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Year |
2019 |
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688 |
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yes |
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7760 |
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Author |
Calzas M., C. Brachet, C. Drezen, L. Fichen, A. Guillot, P. Téchiné, L. Testut, P. Bonnefond, O. Laurain, V. Ballu, E. Poirier, N. Picot. |
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Title |
Mesure du geoïde marin avec le système CalNaGEO (GNSS) |
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Peer-reviewed symposium |
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Year |
2019 |
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688 |
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yes |
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Serial |
7764 |
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Author |
André F., P. Téchiné, G. Alory, J. Llido. |
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Title |
Bilan d'activités et prospectives du CDS-IS OMP |
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Non peer-reviewed symposium |
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Year |
2019 |
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688 |
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yes |
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7798 |
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Title |
Coastal Sea Level and Related Fields from Existing Observing Systems |
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Journal |
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Year |
2019 |
Publication |
Surveys in Geophysics |
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Volume |
40 |
Issue |
6 |
Pages |
1293-1317 |
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Abstract |
We review the status of current sea-level observing systems with a focus on the coastal zone. Tide gauges are the major source of coastal sea-level observations monitoring most of the world coastlines, although with limited extent in Africa and part of South America. The longest tide gauge records, however, are unevenly distributed and mostly concentrated along the European and North American coasts. Tide gauges measure relative sea level but the monitoring of vertical land motion through high-precision GNSS, despite being essential to disentangle land and ocean contributions in tide gauge records, is only available in a limited number of stations. (25% of tide gauges have a GNSS station at less than 10 km.) Other data sources are new in situ observing systems fostered by recent progress in GNSS data processing (e.g., GPS reflectometry, GNSS-towed platforms) and coastal altimetry currently measuring sea level as close as 5 km from the coastline. Understanding observed coastal sea level also requires information on various contributing processes, and we provide an overview of some other relevant observing systems, including those on (offshore and coastal) wind waves and water density and mass changes. |
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688 |
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1573-0956 |
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yes |
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7954 |
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Author |
Adam T. Devlin, Jiayi Pan, Hui Lin |
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Title |
Multi-Timescale Analysis of Tidal Variability in the Indian Ocean Using Ensemble Empirical Mode Decomposition |
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Journal |
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Year |
2020 |
Publication |
Journal of Geophysical Research: Oceans |
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Volume |
125 |
Issue |
12 |
Pages |
e2020JC016604 |
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Keywords |
Coastal risks Ensemble Empirical Mode Decomposition Indian Ocean Sea level variability Tidal evolution Tidal variability |
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Abstract |
Ocean tides have been observed to be changing worldwide for nonastronomical reasons, which can combine with rising mean sea level (MSL) to increase the long-term impact to coastal regions. Tides can also exhibit variability at shorter timescales, which may be correlated with short-term variability in MSL. This short-term coupling may yield higher peak water levels and increased impacts of exceedance events that may be equally significant as long-term sea level rise. Previous studies employed the tidal anomaly correlation (TAC) method to quantify the sensitivity of tides to MSL fluctuations at long-period (>20 years) tide gauges in basin-scale surveys of the Pacific and Atlantic Ocean, finding that TACs exist at most locations. The Indian Ocean also experiences significant sea level rise and tidal variability yet has been less studied due to a sparse network of tide gauges. However, since the beginning of the 21st century, more tide gauges have been established in a wider geographical range, bringing the possibility of better estimates of tidal and MSL variability. Here, we improve the TAC approach, using the ensemble empirical mode decomposition (EEMD) method to analyze tidal amplitudes and sea level at multiple frequency bands, allowing a more effective use of shorter record tide gauges and better understanding of multiple timescales of tidal variability. We apply this approach to 73 tide gauges in the Indian Ocean to better quantify tidal variability in these under-studied regions, finding that the majority of locations exhibit significant correlations of tides and MSL. |
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2169-9291 |
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7956 |
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Author |
Sanne Muis, Maialen Irazoqui Apecechea, Job Dullaart, Joao de Lima Rego, Kristine Skovgaard Madsen, Jian Su, Kun Yan, Martin Verlaan |
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Title |
A High-Resolution Global Dataset of Extreme Sea Levels, Tides, and Storm Surges, Including Future Projections |
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Year |
2020 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
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Volume |
7 |
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Pages |
263 |
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2296-7745 |
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8031 |
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