Data assimilation in the geosciences: An overview of methods, issues, and perspectives
We commonly refer to state estimation theory in geosciences as data assimilation (DA). This
term encompasses the entire sequence of operations that, starting from the observations of a …
term encompasses the entire sequence of operations that, starting from the observations of a …
Global observations of fine-scale ocean surface topography with the surface water and ocean topography (SWOT) mission
The future international Surface Water and Ocean Topography (SWOT) Mission, planned for
launch in 2021, will make high-resolution 2D observations of sea-surface height using SAR …
launch in 2021, will make high-resolution 2D observations of sea-surface height using SAR …
Synchronization to big data: Nudging the Navier-Stokes equations for data assimilation of turbulent flows
Nudging is an important data assimilation technique where partial field measurements are
used to control the evolution of a dynamical system and/or to reconstruct the entire phase …
used to control the evolution of a dynamical system and/or to reconstruct the entire phase …
[HTML][HTML] Long short-term memory embedded nudging schemes for nonlinear data assimilation of geophysical flows
Reduced rank nonlinear filters are increasingly utilized in data assimilation of geophysical
flows but often require a set of ensemble forward simulations to estimate forecast …
flows but often require a set of ensemble forward simulations to estimate forecast …
Recovering the initial state of an infinite-dimensional system using observers
Let A be the generator of a strongly continuous semigroup T on the Hilbert space X, and let
C be a linear operator from D (A) to another Hilbert space Y (possibly unbounded with …
C be a linear operator from D (A) to another Hilbert space Y (possibly unbounded with …
Evaluation and integration of reanalysis rainfall products under contrasting climatic conditions in India
Advancements in science and technology lead to the development of different sensors that
measure precipitation, an intrinsic component of the hydrological cycle. As conventional …
measure precipitation, an intrinsic component of the hydrological cycle. As conventional …
Data assimilation for geophysical fluids
The ultimate purpose of environmental studies is the forecast of its natural evolution. A
prerequisite before a prediction is to retrieve at best the state of the environment. Data …
prerequisite before a prediction is to retrieve at best the state of the environment. Data …
Mapping altimetry in the forthcoming swot era by back-and-forth nudging a one-layer quasigeostrophic model
F Le Guillou, S Metref, E Cosme… - … of Atmospheric and …, 2021 - journals.ametsoc.org
During the past 25 years, altimetric observations of the ocean surface from space have been
mapped to provide two dimensional sea surface height (SSH) fields that are crucial for …
mapped to provide two dimensional sea surface height (SSH) fields that are crucial for …
Sequential identification of boundary support parameters in a fluid-structure vascular model using patient image data
Viscoelastic support has been previously established as a valuable modeling ingredient to
represent the effect of surrounding tissues and organs in a fluid-structure vascular model. In …
represent the effect of surrounding tissues and organs in a fluid-structure vascular model. In …
Downscaling data assimilation algorithm with applications to statistical solutions of the Navier–Stokes equations
A Biswas, C Foias, CF Mondaini, ES Titi - … de l'Institut Henri Poincaré C …, 2019 - Elsevier
Based on a previously introduced downscaling data assimilation algorithm, which employs a
nudging term to synchronize the coarse mesh spatial scales, we construct a determining …
nudging term to synchronize the coarse mesh spatial scales, we construct a determining …