Improving weather forecast skill through reduced precision data assimilation

Improving weather forecast skill through reduced precision data assimilation

A new approach for improving the accuracy of data assimilation, by trading numerical precision for ensemble size, is introduced. Data assimilation is inherently uncertain due to the use of noisy observations and imperfect models. Thus, the larger rounding errors incurred from reducing precision may...

書誌詳細
主要な著者:	Hatfield, S, Subramanian, A, Palmer, T, Düben, P
フォーマット:	Journal article
出版事項:	American Meteorological Society 2017

類似資料

Reduced-precision arithmetic in numerical weather prediction with an emphasis on data assimilation
著者:: Hatfield, S
出版事項: (2019)

Choosing the optimal numerical precision for data assimilation in the presence of model error
著者:: Hatfield, SE, 等
出版事項: (2018)

Scale-selective precision for weather and climate forecasting
著者:: Chantry, M, 等
出版事項: (2019)

Single precision in weather forecasting models: An evaluation with the IFS
著者:: Váňa, F, 等
出版事項: (2017)

Reduced-precision parametrization: lessons from an intermediate-complexity atmospheric model
著者:: Saffin, L, 等
出版事項: (2020)

Accelerating high-resolution weather models with deep-learning hardware
著者:: Hatfield, S, 等
出版事項: (2019)

A study of reduced numerical precision to make superparameterization more competitive using a hardware emulator in the OpenIFS model
著者:: Düben, P, 等
出版事項: (2017)

Single-precision in the tangent-linear and adjoint models of incremental 4D-VAr
著者:: Hatfield, S, 等
出版事項: (2020)

A power law for reduced precision at small spatial scales: Experiments with an SQG model
著者:: Thornes, T, 等
出版事項: (2018)

The use of imprecise processing to improve accuracy in weather and climate prediction
著者:: Düben, P, 等
出版事項: (2014)

Can reducing precision improve accuracy in weather and climate models?
著者:: Thornes, T
出版事項: (2016)

Machine learning emulation of gravity wave drag in numerical weather forecasting
著者:: Chantry, M, 等
出版事項: (2021)

On the use of programmable hardware and reduced numerical precision in earth-system modeling
著者:: Düben, P, 等
出版事項: (2015)

Posits as an alternative to floats for weather and climate models
著者:: Klöwer, M, 等
出版事項: (2019)

Predicting uncertainty in forecasts of weather and climate
著者:: Palmer, T
出版事項: (2000)

Investigating the potential for improving the accuracy of weather and climate forecasts by varying numerical precision in computer models
著者:: Thornes, T
出版事項: (2018)

Assessing atmospheric predictability on Mars using numerical weather prediction and data assimilation
著者:: Rogberg, P, 等
出版事項: (2010)

On the use of scale-dependent precision in Earth System modelling
著者:: Thornes, T, 等
出版事項: (2017)

Model error in weather forecasting
著者:: Orrell, D, 等
出版事項: (2001)

More reliable forecasts with less precise computations: a fast-track route to cloud-resolved weather and climate simulators?
著者:: Palmer, T
出版事項: (2014)

Stochastic modelling and energy-efficient computing for weather and climate prediction.
著者:: Palmer, T, 等
出版事項: (2014)

Improvements to ensemble methods for data assimilation in the geosciences
著者:: Raanes, P
出版事項: (2015)

ON THE PREDICTION OF FORECAST SKILL
著者:: Palmer, T, 等
出版事項: (1988)

Benchmark Tests for Numerical Weather Forecasts on Inexact Hardware
著者:: Dueben, P, 等
出版事項: (2014)

A big data prediction framework for weather forecast using MapReduce algorithm
著者:: Khalid, Adam, 等
出版事項: (2017)

Reliable low precision simulations in land surface models
著者:: Dawson, A, 等
出版事項: (2017)

Singular vectors, predictability and ensemble forecasting for weather and climate
著者:: Palmer, T, 等
出版事項: (2013)

Number formats, error mitigation, and scope for 16‐bit arithmetics in weather and climate modeling analyzed with a shallow water model
著者:: Düben, PD, 等
出版事項: (2020)

Practical weather forecasting/
著者:: 418012 Mitchell-Christie, Frank
出版事項: (1978)

Forecasting weather by computer /
著者:: Mason, B. J. (Basil John)

Weather forecasting by computer /
著者:: Mason, B. J. (Basil John)

Weather radar and flood forecasting /
著者:: Collinge, V. K. (Vince K.), 等
出版事項: (1987)

Computer weather forecasting in Canada /
著者:: 429524 Kwizak, M.

The characteristics of Hessian singular vectors using an advanced data assimilation scheme
著者:: Lawrence, A, 等
出版事項: (2009)

Heatwave attribution based on reliable operational weather forecasts
著者:: Leach, NJ, 等
出版事項: (2024)

Forecasting Weather Variable Densities for Weather Derivatives and Energy Prices.
著者:: Taylor, J
出版事項: (2004)

Reduced Order Modeling for Stochastic Prediction and Data Assimilation Onboard Autonomous Platforms At Sea
著者:: Heuss, Jacob Peter
出版事項: (2022)

Weather forecasting as an early warning system: pattern of weather forecast usage among coastal communities in Malaysia
著者:: Omar, Siti Zobidah, 等
出版事項: (2013)

Density forecasting for weather derivative pricing.
著者:: Taylor, J, 等
出版事項: (2006)

Density Forecasting for Weather Derivative Pricing
著者:: Taylor, J, 等
出版事項: (2006)