Alice Dalphinet
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View article: Investigating metamodeling capability to predict sea levels and marine flooding maps for early-warning systems: application on the Arcachon Lagoon (France)
Investigating metamodeling capability to predict sea levels and marine flooding maps for early-warning systems: application on the Arcachon Lagoon (France) Open
Marine flooding events during storms are expected to occur more frequently due to sea level rise. Hence, early warning systems (EWS) dedicated to marine flooding are expected to develop in the coming years. In this study, we compare three …
View article: Enhancing wave and ocean forecasts with Artificial Intelligence in the North-East Atlantic and Shelf Region – The Copernicus Marine Service Evolution CERAINE project
Enhancing wave and ocean forecasts with Artificial Intelligence in the North-East Atlantic and Shelf Region – The Copernicus Marine Service Evolution CERAINE project Open
Copernicus Marine Service Monitoring and Forecasting Centres (MFCs) are improving their models to resolve finer-scale oceanographic features, driven by a growing need for high-resolution, short-term ocean forecasts. A key limitation to for…
View article: Enhancing coastal winds and surface ocean currents with deep learning for short-term wave forecasting
Enhancing coastal winds and surface ocean currents with deep learning for short-term wave forecasting Open
Accurate short-term wave forecasts are crucial for numerous maritime activities. Wind and surface currents, the primary forcings for spectral wave models, directly influence forecast accuracy. While remote sensing technologies like Satelli…
View article: Ocean-wave-atmosphere-coupling in the AROBASE modelling system for coastal wave warning and sensitivity to momentum flux parametrisation
Ocean-wave-atmosphere-coupling in the AROBASE modelling system for coastal wave warning and sensitivity to momentum flux parametrisation Open
The AROBASE (AROme-BAsed coupled SystEm) project aims to develop a coupled kilometre-scale numerical forecasting system incorporating ocean, waves, aerosols/chemistry and land surface models around the fine-scale AROME (Application of Rese…
View article: Ensemble forecasts of marine flood maps assisted by probabilistic machine learning techniques: Application at Arcachon Lagoon (France)
Ensemble forecasts of marine flood maps assisted by probabilistic machine learning techniques: Application at Arcachon Lagoon (France) Open
Recent advances in high performance computing have enabled numerical weather prediction systems to move from deterministic to probabilistic forecasting using Ensemble Prediction Systems (EPS). While EPS are increasingly used to predict riv…
View article: Progresses in assessing the quality of the Copernicus Marine near real time Northeast Atlantic and Shelf Seas models application.
Progresses in assessing the quality of the Copernicus Marine near real time Northeast Atlantic and Shelf Seas models application. Open
Qualification and validation of operational ocean products are fundamental processes and vital part of the Copernicus Marine Service for evaluating added value of any new or upgraded release and for monitoring forecasting systems skills in…
View article: Enhancement of coastal winds and surface ocean currents with deep learning – The Copernicus Marine Service Evolution KAILANI project
Enhancement of coastal winds and surface ocean currents with deep learning – The Copernicus Marine Service Evolution KAILANI project Open
Coastal stakeholders are adding ocean forecasts in their daily operations. The Copernicus Marine Service - Monitoring and Forecasting Centres (CMS - MFCs) are evolving to meet these user new demands. For instance, the wave forecast service…
View article: Statistical analysis of global ocean significant wave heights from satellite altimetry over the past two decades
Statistical analysis of global ocean significant wave heights from satellite altimetry over the past two decades Open
The analysis of global ocean surface waves and of long-term changes is important to climate research and to ocean and coastal applications. Indeed, waves contribute to flooding, coastal erosion, extreme sea level events and ocean circulati…
View article: The AROBASE project: Development of a kilometre-scale multi-coupled modelling and forecasting system and first results
The AROBASE project: Development of a kilometre-scale multi-coupled modelling and forecasting system and first results Open
The AROBASE project aims to assemble a kilometre-scale limited-area multi-coupled modelling system of the physico-chemical atmosphere, the ocean (including sea-ice and marine biogeochemistry), waves and land surfaces (soil, vegetation, cit…
View article: Enhancing coastal wave forecasts by improving forcings with deep learning – The Copernicus Marine Service Evolution KAILANI project
Enhancing coastal wave forecasts by improving forcings with deep learning – The Copernicus Marine Service Evolution KAILANI project Open
Ocean wave forecasting is highly demanded by end-users. There is a pressing need for reliable forecasts, to be applied in emergency services, harbour logistics, search-and-rescue operations, renewable energy or pollutant transport. In addi…
View article: CFOSAT: Latest Improvements in the Swim Products and Contributions in Oceanography
CFOSAT: Latest Improvements in the Swim Products and Contributions in Oceanography Open
For the first time, co-located wind vectors and wave spectral characteristics are available thanks to the French/Chinese CFOSAT mission, which includes a wind scatterometer SCAT and a wave scatterometer SWIM. Three years after its launch, …
View article: Impacts of an Altimetric Wave Data Assimilation Scheme and Currents-Wave Coupling in an Operational Wave System: The New Copernicus Marine IBI Wave Forecast Service
Impacts of an Altimetric Wave Data Assimilation Scheme and Currents-Wave Coupling in an Operational Wave System: The New Copernicus Marine IBI Wave Forecast Service Open
The Copernicus Marine IBI-MFC (Iberia–Biscay–Ireland Monitoring and Forecasting Centre) has delivered operational wave forecasts since 2017. The operational application is based on a MFWAM model (Meteo-France WAve Model) set-up, running at…
View article: Evolutions and Improvements in CFOSAT SWIM Products
Evolutions and Improvements in CFOSAT SWIM Products Open
International audience
View article: Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements
Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements Open
The “China France Oceanography Satellite” (CFOSAT) launched in 2018 now routinely provides directional ocean wave spectra at the global scale. It consists of analyzing the normalized radar cross‐section measured by the near‐nadir pointing …
View article: Acquisition of the Significant Wave Height From CFOSAT SWIM Spectra Through a Deep Neural Network and Its Impact on Wave Model Assimilation
Acquisition of the Significant Wave Height From CFOSAT SWIM Spectra Through a Deep Neural Network and Its Impact on Wave Model Assimilation Open
The wave numerical simulation accuracy can be improved by assimilating remotely sensed wave observations. In addition to the nadir, significant wave height (SWH), the Surface Waves Investigation and Monitoring (SWIM) onboard Chinese‐French…
View article: THE OPERATIONAL CMEMS IBI-MFC SERVICE TODAY: REVIEW OF MAJOR ACHIEVEMENTS ALONG THE COPERNICUS-1 SERVICE PHASE (2015-2021)
THE OPERATIONAL CMEMS IBI-MFC SERVICE TODAY: REVIEW OF MAJOR ACHIEVEMENTS ALONG THE COPERNICUS-1 SERVICE PHASE (2015-2021) Open
International audience
View article: The Wide Swath Significant Wave Height: An Innovative Reconstruction of Significant Wave Heights From CFOSAT’s SWIM and Scatterometer Using Deep Learning
The Wide Swath Significant Wave Height: An Innovative Reconstruction of Significant Wave Heights From CFOSAT’s SWIM and Scatterometer Using Deep Learning Open
The accuracy of a wave model can be improved by assimilating an adequate number of remotely sensed wave heights. The Surface Waves Investigation and Monitoring (SWIM) and Scatterometer (SCAT) instruments onboard China‐France Oceanic SATell…
View article: New directional wave observations from CFOSAT : impact on ocean/wave coupling in the Southern Ocean
New directional wave observations from CFOSAT : impact on ocean/wave coupling in the Southern Ocean Open
<p>The Southern ocean is a complex ocean region with uncertainties related to surface wind forcing and fluxes exchanges at the air/sea interface. The improvement of wind wave generation in this ocean region is crucial for climate stu…
View article: CAL/VAL Phase for the Swim Instrument Onboard cFOSAT
CAL/VAL Phase for the Swim Instrument Onboard cFOSAT Open
International audience
View article: New Observations From the SWIM Radar On-Board CFOSAT: Instrument Validation and Ocean Wave Measurement Assessment
New Observations From the SWIM Radar On-Board CFOSAT: Instrument Validation and Ocean Wave Measurement Assessment Open
This article describes the first results obtained from the Surface Waves Investigation and Monitoring (SWIM) instrument carried by the China France Oceanography Satellite (CFOSAT), which was launched on October 29, 2018. SWIM is a Ku-band …
View article: Validation of the CMEMS-IBI wave model with data assimilation in a high resolution regional configuration.
Validation of the CMEMS-IBI wave model with data assimilation in a high resolution regional configuration. Open
<p>One of the challenges of the Iberia-Biscay-Ireland (IBI) Monitoring Forecasting Centre in CMEMS phase 2 is the implementation of the assimilation of altimeter wave data in the wave forecast system. &#160;In this work we explor…
View article: WAVERYS : A CMEMS global wave reanalysis during the altimetry period
WAVERYS : A CMEMS global wave reanalysis during the altimetry period Open
<p><strong>As part of the Copernicus Marine Core service, WAVERYS is the multi-year wave reanalysis that aims to provide global wave data with a grid resolution of 1/5&#176;. The wave reanalysis covers the period of 1993-20…
View article: On the use of deep learning for the improvement of swh and wave spectra from CFOSAT
On the use of deep learning for the improvement of swh and wave spectra from CFOSAT Open
<p>The SWIM (Surface Waves Investigation and Monitoring) carried by the CFOSAT (Chinese-French Oceanography Satellite) is designed to obtain the nadir wave height and directional spectrum. This work first introduces the efficiency of…
View article: HIGH RESOLUTION WAVE FORECASTING MODELS AND WAVE TURBULENCE THEORY
HIGH RESOLUTION WAVE FORECASTING MODELS AND WAVE TURBULENCE THEORY Open
Results of high resolution sea wave modeling are treated within the theory of wave (weak) turbulence. Spatial resolution 1 km is shown likely to be excessive and lead to appearance of artificial structures in fields of wave periods and ste…
View article: The impact of wave physics in the CMEMS-IBI ocean system Part A: Wave forcing validation
The impact of wave physics in the CMEMS-IBI ocean system Part A: Wave forcing validation Open
The Iberian Biscay Ireland (IBI) wave system has the challenge to improve wave forecast and the coupling with ocean circulation model dedicated to western european coast. The momentum and heat fluxes at the sea surface are strongly control…
View article: Impact of wave physics on ocean–wave coupling in CMEMS-IBI Part B: Validation study
Impact of wave physics on ocean–wave coupling in CMEMS-IBI Part B: Validation study Open
This work aims to evaluate the ocean/waves coupling based on input from the wave modelMFWAM. 1-year coupled runs including seasonal variability has been performed for the IberianBiscay and Ireland domain. We investigated the consequences o…
View article: Estimation of the hundred year return level of the significant wave height for the French Guiana coast
Estimation of the hundred year return level of the significant wave height for the French Guiana coast Open
International audience
View article: Mud and sand effects on wave propagation over the French Guiana coasts
Mud and sand effects on wave propagation over the French Guiana coasts Open
International audience
View article: Extreme Wave Height Events in NW Spain: A Combined Multi-Sensor and Model Approach
Extreme Wave Height Events in NW Spain: A Combined Multi-Sensor and Model Approach Open
The Galician coast (NW Spain) is a region that is strongly influenced by the presence of low pressure systems in the mid-Atlantic Ocean and the periodic passage of storms that give rise to severe sea states. Since its wave climate is one o…