Results 21 to 30 of about 16,215 (263)

The Impacts of the Application of the Ensemble Optimal Interpolation Method in Global Ocean Wave Data Assimilation

Atmosphere, 2023
The ensemble optimal interpolation method was used in this study to conduct an examination of the assimilations of significant wave height (SWH) data from HY-2A satellite altimeter based on the WAVEWATCH III global ocean wave model. The results suggested
Mengmeng Wu, Hui Wang, Liying Wan, Juanjuan Wang, Yi Wang, Jiuke Wang   +5 more
doaj   +1 more source

Assessing the Impact of the Assimilation of SWOT Observations in a Global High-Resolution Analysis and Forecasting System Part 1: Methods

Frontiers in Marine Science, 2021
The future Surface Water Ocean Topography (SWOT) mission due to be launched in 2022 will extend the capability of existing nadir altimeters to enable two-dimensional mapping at a much higher effective resolution.
Mounir Benkiran, Giovanni Ruggiero, Eric Greiner, Pierre-Yves Le Traon, Pierre-Yves Le Traon, Elisabeth Rémy, Jean Michel Lellouche, Romain Bourdallé-Badie, Yann Drillet, Babette Tchonang   +9 more
doaj   +1 more source

An Efficient Method for Nested High-Resolution Ocean Modelling Incorporating a Data Assimilation Technique

Journal of Marine Science and Engineering, 2022
A simple and computationally efficient method is presented for creating a high-resolution regional (child) model nested within a coarse-resolution, good-quality data-assimilating (parent) model.
Georgy I. Shapiro, Jose M. Gonzalez-Ondina   +1 more
doaj   +1 more source

Exploring strategies for coupled 4D-Var data assimilation using an idealised atmosphere–ocean model [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2015
Operational forecasting centres are currently developing data assimilation systems for coupled atmosphere–ocean models. Strongly coupled assimilation, in which a single assimilation system is applied to a coupled model, presents significant technical and
Polly J. Smith, Alison M. Fowler, Amos S. Lawless   +2 more
doaj   +1 more source

Toward a multivariate reanalysis of the North Atlantic Ocean biogeochemistry during 1998–2006 based on the assimilation of SeaWiFS chlorophyll data [PDF]

Ocean Science, 2013
Today, the routine assimilation of satellite data into operational models of ocean circulation is mature enough to enable the production of global reanalyses describing the ocean circulation variability during the past decades.
J.-M. Brankart, P. Brasseur, C. Fontana
doaj   +1 more source

Observation Impact Assessment on the Prediction of the Earth System Dynamics Using the Adjoint-Based Method

Труды СПИИРАН, 2018
Mathematical models of the Earth system and its components represent one of the most powerful and effective instruments applied to explore the Earth system's behaviour in the past and present, and to predict its future state considering external ...
Peter Steinle, Chris Tingwell, Sergei Anatolievich Soldatenko   +2 more
doaj   +1 more source

A Nowcast/Forecast System for Japan’s Coasts Using Daily Assimilation of Remote Sensing and In Situ Data

Remote Sensing, 2021
We have developed an ocean state nowcast/forecast system (JCOPE-T DA) that targets the coastal waters around Japan and assimilates daily remote sensing and in situ data.
Yasumasa Miyazawa, Sergey M. Varlamov, Toru Miyama, Yukio Kurihara, Hiroshi Murakami, Misako Kachi   +5 more
doaj   +1 more source

Synthesis of Ocean Observations Using Data Assimilation for Operational, Real-Time and Reanalysis Systems: A More Complete Picture of the State of the Ocean

Frontiers in Marine Science, 2019
Ocean data assimilation is increasingly recognized as crucial for the accuracy of real-time ocean prediction systems and historical re-analyses. The current status of ocean data assimilation in support of the operational demands of analysis, forecasting ...
Andrew M. Moore, Matthew J. Martin, Santha Akella, Hernan G. Arango, Magdalena Balmaseda, Laurent Bertino, Stefano Ciavatta, Bruce Cornuelle, Jim Cummings, Sergey Frolov, Pierre Lermusiaux, Paolo Oddo, Peter R. Oke, Andrea Storto, Anna Teruzzi, Arthur Vidard, Anthony T. Weaver   +16 more
doaj   +1 more source

A Global-Ocean-Data Assimilation for Operational Oceanography

Journal of Marine Science and Engineering, 2023
In this study, a global-ocean-data-assimilation system based on the three-dimensional variational (3DVAR) scheme is built for operational oceanography. The available observations include satellite altimetry; the satellite-measured sea-surface temperature
Yinghao Qin, Qinglong Yu, Liying Wan, Yang Liu, Huier Mo, Yi Wang, Sujing Meng, Xiangyu Wu, Dandan Sui, Jiping Xie   +9 more
doaj   +1 more source

Additives Enhancing Biodegradability in Plastics and Potential Implications for Textiles: A Mechanistic Review

Journal of Applied Polymer Science, EarlyView.
Mechanistic insights from additive‐assisted plastic degradation guide the design of environmentally adaptive textile fibers. Functional additives enhance oxidative, hydrolytic, enzymatic, and microbial degradation pathways. Translating these strategies requires control of fiber architecture, additive distribution, and environmental interactions ...
Julia Cunniffe, Joel Pawlak, Richard Venditti   +2 more
wiley   +1 more source