Coastal ocean observing and modeling systems in Brazil: initiatives and future perspectives

G Franz, CAE Garcia, J Pereira… - Frontiers in Marine …, 2021 - frontiersin.org
Coastal ocean observing and modeling systems (coastal observatories), connected with
regional and global ocean systems, improve the quality of information and forecasts for …

Analog ensemble data assimilation and a method for constructing analogs with variational autoencoders

I Grooms - Quarterly Journal of the Royal Meteorological …, 2021 - Wiley Online Library
It is proposed to use analogs of the forecast mean to generate an ensemble of perturbations
for use in ensemble optimal interpolation (EnOI) or ensemble variational (EnVar) methods. A …

Ensemble-based assimilation of wave model predictions: Contrasting the impact of assimilation in nearshore and offshore forecasting at different distances from …

J Liu, B Xu, J Wang - Applied Ocean Research, 2023 - Elsevier
Accurate wave predictions are crucial for many marine-related activities, including offshore
operations, navigation, and marine renewable energy. To improve the forecast performance …

Persistency and surface convergence evidenced by two maker buoys in the great pacific garbage patch

B Sainte-Rose, Y Pham, W Pavalko - Journal of Marine Science and …, 2023 - mdpi.com
The accumulation of plastic debris on land and coastlines and in waterways and garbage
patches is one of the greatest ecological concerns of the 21st century. In that context, the …

Impact of satellite thickness data assimilation on bias reduction in Arctic sea ice concentration

JG Lee, YG Ham - npj Climate and Atmospheric Science, 2023 - nature.com
The impact of assimilating satellite-retrieved Arctic sea ice thickness (SIT) on simulating sea
ice concentration (SIC) climatology in CICE5 is examined using a data assimilation (DA) …

Alleviating the bias induced by the linear analysis update with an isopycnal ocean model

Y Wang, F Counillon, L Bertino - Quarterly Journal of the Royal …, 2016 - Wiley Online Library
This work is based on the Norwegian Climate Prediction Model (NorCPM), which applies the
ensemble Kalman filter (EnKF) to a fully coupled Earth System Model (NorESM) with an …

Benefit of vertical localization for sea surface temperature assimilation in isopycnal coordinate model

Y Wang, F Counillon, S Barthélémy, A Barth - Frontiers in Climate, 2022 - frontiersin.org
Sea surface temperature (SST) observations are a critical data set for long-term climate
reconstruction. However, their assimilation with an ensemble-based data assimilation …

Analog ensemble data assimilation in a quasigeostrophic coupled model

I Grooms, C Renaud, Z Stanley… - Quarterly Journal of the …, 2023 - Wiley Online Library
The ensemble forecast dominates the computational cost of many data assimilation
methods, especially for high‐resolution and coupled models. In situations where the cost is …

Study on the tropical cyclone-generated waves after ensemble-based assimilation of multi-mission satellite altimeters

J Liu, B Xu, L Zhang, J Wang - Ocean Engineering, 2024 - Elsevier
The third-generation wave model, WAVEWATCH III, is adopted for numerical simulation
during the 2020 Atlantic Hurricane Season (AHS). This study examines the effects of data …

Observing system experiments over the Atlantic Ocean with the REMO ocean data assimilation system (RODAS) into HYCOM

CAS Tanajura, D Mignac, AN de Santana, FB Costa… - Ocean Dynamics, 2020 - Springer
Abstract The Oceanographic Modeling and Observation Network (REMO) focuses on
scientific and technological development of operational oceanography in Brazil considering …