Single-precision in the tangent-linear and adjoint models of incremental 4D-VAr

Single-precision in the tangent-linear and adjoint models of incremental 4D-VAr

The use of single-precision arithmetic in ECMWF’s forecasting model gave a 40% reduction in wall-clock time over double-precision, with no decrease in forecast quality. However, using reduced-precision in 4D-Var data assimilation is relatively unexplored and there are potential issues with using sin...

书目详细资料
Main Authors:	Hatfield, S, McRae, A, Palmer, T, Düben, P
格式:	Journal article
语言:	English
出版:	American Meteorological Society 2020

相似书籍

The Tangent-Linear and Adjoint Models of the NEPTUNE Dynamical Core
由: Edward D. Zaron, et al.
出版: (2022-11-01)

Development of the tangent linear and adjoint models of the MPAS-Atmosphere dynamic core and applications in adjoint relative sensitivity studies
由: Xiaoxu Tian, et al.
出版: (2020-01-01)

Reduced-precision parametrization: lessons from an intermediate-complexity atmospheric model
由: Saffin, L, et al.
出版: (2020)

Improving weather forecast skill through reduced precision data assimilation
由: Hatfield, S, et al.
出版: (2017)

Dual number-based variational data assimilation: Constructing exact tangent linear and adjoint code from nonlinear model evaluations
出版: (2021)

Dual number-based variational data assimilation: Constructing exact tangent linear and adjoint code from nonlinear model evaluations
由: Mattern, Jann Paul, et al.
出版: (2022)

Choosing the optimal numerical precision for data assimilation in the presence of model error
由: Hatfield, SE, et al.
出版: (2018)

Development of the tangent linear and adjoint models of the global online chemical transport model MPAS-CO<sub>2</sub> v7.3
由: T. Zheng, et al.
出版: (2024-02-01)

On the use of scale-dependent precision in Earth System modelling
由: Thornes, T, et al.
出版: (2017)

Single precision in weather forecasting models: An evaluation with the IFS
由: Váňa, F, et al.
出版: (2017)

Online Model Error Correction With Neural Networks in the Incremental 4D‐Var Framework
由: Alban Farchi, et al.
出版: (2023-09-01)

On the Stability of Self-Adjointness of Linear Relations
由: Yan Liu
出版: (2019-01-01)

A power law for reduced precision at small spatial scales: Experiments with an SQG model
由: Thornes, T, et al.
出版: (2018)

Scale-selective precision for weather and climate forecasting
由: Chantry, M, et al.
出版: (2019)

Accelerating high-resolution weather models with deep-learning hardware
由: Hatfield, S, et al.
出版: (2019)

Linear local tangent space alignment with autoencoder
由: Ruisheng Ran, et al.
出版: (2023-04-01)

A 4D-Var inversion system based on the icosahedral grid model (NICAM-TM 4D-Var v1.0) – Part 1: Offline forward and adjoint transport models
由: Y. Niwa, et al.
出版: (2017-03-01)

Fluid simulations accelerated with 16 bits: Approaching 4x speedup on A64FX by squeezing ShallowWaters.jl into Float16
由: Klöwer, M, et al.
出版: (2022)

Reliable low precision simulations in land surface models
由: Dawson, A, et al.
出版: (2017)

Convergence of linearized and adjoint approximations for discontinuous solutions of conservation laws. Part 2: adjoint approximations and extensions
由: Giles, M, et al.
出版: (2010)

Convergence of linearized and adjoint approximations for discontinuous solutions of conservation laws. Part 2: Adjoint approximations and extensions
由: Giles, M, et al.
出版: (2010)

Fourth-Order Comprehensive Adjoint Sensitivity Analysis (4th-CASAM) of Response-Coupled Linear Forward/Adjoint Systems: I. Theoretical Framework
由: Dan Gabriel Cacuci
出版: (2021-06-01)

Asymptotic approximations of complex order tangent, Tangent-Bernoulli and Tangent-Genocchi polynomials
由: Cristina B. Corcino, et al.
出版: (2024-12-01)

Approximations of Tangent Polynomials, Tangent –Bernoulli and Tangent – Genocchi Polynomials in terms of Hyperbolic Functions
由: Cristina B. Corcino, et al.
出版: (2021-01-01)

Fourier Series for the Tangent Polynomials, Tangent–Bernoulli and Tangent–Genocchi Polynomials of Higher Order
由: Cristina Bordaje Corcino, et al.
出版: (2022-02-01)

Fluid Simulations Accelerated With 16 Bits: Approaching 4x Speedup on A64FX by Squeezing ShallowWaters.jl Into Float16
由: Milan Klöwer, et al.
出版: (2022-02-01)

On the use of programmable hardware and reduced numerical precision in earth-system modeling
由: Düben, P, et al.
出版: (2015)

Radar radial wind data assimilation using the time-incremental 4D-Var method implemented to the WRFDA system
由: Yonghan Choi, et al.
出版: (2013-09-01)

A study of reduced numerical precision to make superparameterization more competitive using a hardware emulator in the OpenIFS model
由: Düben, P, et al.
出版: (2017)

Remarks on QCD4 with fundamental and adjoint matter
由: Mohamed M. Anber, et al.
出版: (2023-12-01)

Relatively Bounded Perturbations of a Closed Linear Relation and Its Adjoint
由: Guixin Xu
出版: (2022-01-01)

Quantum tangent kernel
由: Norihito Shirai, et al.
出版: (2024-08-01)

Asymptotic Expansions for Large Degree Tangent and Apostol-Tangent Polynomials of Complex Order
由: Cristina B. Corcino, et al.
出版: (2023-01-01)

Well-separated soliton-antisoliton pairs with an adjoint Higgs field in 4D space
由: Liang Gong, et al.
出版: (2024-05-01)

A study of reduced numerical precision to make superparameterization more competitive using a hardware emulator in the OpenIFS model
由: Peter D. Düben, et al.
出版: (2017-03-01)

J-Self-Adjoint Extensions for a Class of Discrete Linear Hamiltonian Systems
由: Guojing Ren, et al.
出版: (2013-01-01)

Convergence of linearized and adjoint approximations for discontinuous solutions of conservation laws. Part 1: Linearized approximations and linearized output functionals
由: Giles, M, et al.
出版: (2010)

Convergence of linearized and adjoint approximations for discontinuous solutions of conservation laws. Part 1: linearized approximations and linearized output functionals
由: Giles, M, et al.
出版: (2010)

The nth-order features adjoint sensitivity analysis methodology for response-coupled forward/adjoint linear systems (nth-FASAM-L): I. mathematical framework
由: Dan Gabriel Cacuci
出版: (2024-08-01)

Optimization of Airfoils Using the Adjoint Approach and the Influence of Adjoint Turbulent Viscosity
由: Matthias Schramm, et al.
出版: (2018-01-01)