The efficiency of data assimilation

G Nearing, S Yatheendradas, W Crow… - Water resources …, 2018 - Wiley Online Library
Data assimilation is the application of Bayes' theorem to … , we cannot expect that data
assimilation will preserve all of the … , observations, and evaluation data in a way that allows us to …

Efficient data assimilation for spatiotemporal chaos: A local ensemble transform Kalman filter

BR Hunt, EJ Kostelich, I Szunyogh - Physica D: Nonlinear Phenomena, 2007 - Elsevier
… The main purpose of this article is to describe a practical framework for data assimilation
that is both relatively easy to implement and computationally efficient, even for large, …

Weight interpolation for efficient data assimilation with the local ensemble transform Kalman filter

SC Yang, E Kalnay, B Hunt… - Quarterly Journal of the …, 2009 - Wiley Online Library
… of other grid points, becomes more efficient as the number of processors grows. We briefly
discuss the LETKF scheme, where the data assimilation is performed at the central grid point …

An efficient data assimilation algorithm using the Allen–Cahn equation

B Xia, R Yu, X Song, X Zhang, J Kim - Engineering Analysis with Boundary …, 2023 - Elsevier
… In this study, our aim is to introduce an efficient data assimilation method using the AC
equation with an additional term. The AC equation has been extensively used in various fields …

Nonlinear data assimilation in geosciences: an extremely efficient particle filter

PJ Van Leeuwen - … Journal of the Royal Meteorological Society, 2010 - Wiley Online Library
Almost all research fields in geosciences use numerical models and observations and
combine these using dataassimilation techniques. With ever‐increasing resolution and …

Evolutionary deep learning with extended Kalman filter for effective prediction modeling and efficient data assimilation

Q Li, ZY Wu, A Rahman - Journal of Computing in Civil Engineering, 2019 - ascelibrary.org
… modeling and efficient data assimilation. The … data assimilation. The comparison results
showed that the EKF-DBN outperforms BP-DBN and RNN in both computational efficiency and …

Data assimilation in the geosciences: An overview of methods, issues, and perspectives

A Carrassi, M Bocquet, L Bertino… - Wiley Interdisciplinary …, 2018 - Wiley Online Library
… Thus, DA methods are designed to achieve the best possible use of a never sufficient (albeit
constantly growing) amount of data, and to attain an efficient data-model fusion, in a short …

[图书][B] A strategy for data assimilation

M Bonavita, Y Trémolet, E Holm, STK Lang, M Chrust… - 2017 - ecmwf.int
data assimilation, coupled data assimilation, the 4D-Var algorithm itself, an improved
framework for the assimilation code, algorithmic efficiency… of the data assimilation algorithms, …

Data assimilation: making sense of Earth Observation

WA Lahoz, P Schneider - Frontiers in Environmental Science, 2014 - frontiersin.org
data assimilation methodology in section Data Assimilation Methodology. In section Applications
of Data Assimilation … We then discuss the outlook and challenges for data assimilation

[HTML][HTML] Efficient deep data assimilation with sparse observations and time-varying sensors

S Cheng, C Liu, Y Guo, R Arcucci - Journal of Computational Physics, 2024 - Elsevier
… Variational Data Assimilation (DA) has been broadly used in … data. In recent years, the
integration of deep learning (DL) techniques in DA has shown promise in improving the efficiency