Hybrid forecasting: blending climate predictions with AI models

<p>Hybrid hydroclimatic forecasting systems employ data-driven (statistical or machine learning) methods to harness and integrate a broad variety of predictions from dynamical, physics-based models – such as numerical weather prediction, climate, land, hydrology, and Earth system models – into...

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Main Authors: L. J. Slater, L. Arnal, M.-A. Boucher, A. Y.-Y. Chang, S. Moulds, C. Murphy, G. Nearing, G. Shalev, C. Shen, L. Speight, G. Villarini, R. L. Wilby, A. Wood, M. Zappa
Format: Article
Language:English
Published: Copernicus Publications 2023-05-01
Series:Hydrology and Earth System Sciences
Online Access:https://hess.copernicus.org/articles/27/1865/2023/hess-27-1865-2023.pdf
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author L. J. Slater
L. Arnal
M.-A. Boucher
A. Y.-Y. Chang
A. Y.-Y. Chang
S. Moulds
C. Murphy
G. Nearing
G. Shalev
C. Shen
L. Speight
G. Villarini
R. L. Wilby
A. Wood
M. Zappa
author_facet L. J. Slater
L. Arnal
M.-A. Boucher
A. Y.-Y. Chang
A. Y.-Y. Chang
S. Moulds
C. Murphy
G. Nearing
G. Shalev
C. Shen
L. Speight
G. Villarini
R. L. Wilby
A. Wood
M. Zappa
author_sort L. J. Slater
collection DOAJ
description <p>Hybrid hydroclimatic forecasting systems employ data-driven (statistical or machine learning) methods to harness and integrate a broad variety of predictions from dynamical, physics-based models – such as numerical weather prediction, climate, land, hydrology, and Earth system models – into a final prediction product. They are recognized as a promising way of enhancing the prediction skill of meteorological and hydroclimatic variables and events, including rainfall, temperature, streamflow, floods, droughts, tropical cyclones, or atmospheric rivers. Hybrid forecasting methods are now receiving growing attention due to advances in weather and climate prediction systems at subseasonal to decadal scales, a better appreciation of the strengths of AI, and expanding access to computational resources and methods. Such systems are attractive because they may avoid the need to run a computationally expensive offline land model, can minimize the effect of biases that exist within dynamical outputs, benefit from the strengths of machine learning, and can learn from large datasets, while combining different sources of predictability with varying time horizons. Here we review recent developments in hybrid hydroclimatic forecasting and outline key challenges and opportunities for further research. These include obtaining physically explainable results, assimilating human influences from novel data sources, integrating new ensemble techniques to improve predictive skill, creating seamless prediction schemes that merge short to long lead times, incorporating initial land surface and ocean/ice conditions, acknowledging spatial variability in landscape and atmospheric forcing, and increasing the operational uptake of hybrid prediction schemes.</p>
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spelling doaj.art-a3319d8c27b9466ea2e0d6a22320a8922023-05-15T07:41:12ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382023-05-01271865188910.5194/hess-27-1865-2023Hybrid forecasting: blending climate predictions with AI modelsL. J. Slater0L. Arnal1M.-A. Boucher2A. Y.-Y. Chang3A. Y.-Y. Chang4S. Moulds5C. Murphy6G. Nearing7G. Shalev8C. Shen9L. Speight10G. Villarini11R. L. Wilby12A. Wood13M. Zappa14School of Geography and the Environment, University of Oxford, Oxford, UKCentre for Hydrology, University of Saskatchewan, Canmore, CanadaDepartment of Civil Engineering, Université de Sherbrooke, Sherbrooke, CanadaSwiss Federal Research Institute WSL, Birmensdorf, SwitzerlandInstitute for Atmospheric and Climate Science, ETH Zürich, Zurich, SwitzerlandSchool of Geography and the Environment, University of Oxford, Oxford, UKIrish Climate Analysis and Research Units, Department of Geography, Maynooth University, Kildare, IrelandGoogle Research, Mountain View, CA, USAGoogle Research, Tel Aviv, IsraelCivil and Environmental Engineering, Pennsylvania State University, State College, PA 16801, USASchool of Geography and the Environment, University of Oxford, Oxford, UKIIHR – Hydroscience and Engineering, University of Iowa, IA, USAGeography and Environment, Loughborough University, Loughborough, UKNational Center for Atmospheric Research, Climate and Global Dynamics, Boulder, CO, USASwiss Federal Research Institute WSL, Birmensdorf, Switzerland<p>Hybrid hydroclimatic forecasting systems employ data-driven (statistical or machine learning) methods to harness and integrate a broad variety of predictions from dynamical, physics-based models – such as numerical weather prediction, climate, land, hydrology, and Earth system models – into a final prediction product. They are recognized as a promising way of enhancing the prediction skill of meteorological and hydroclimatic variables and events, including rainfall, temperature, streamflow, floods, droughts, tropical cyclones, or atmospheric rivers. Hybrid forecasting methods are now receiving growing attention due to advances in weather and climate prediction systems at subseasonal to decadal scales, a better appreciation of the strengths of AI, and expanding access to computational resources and methods. Such systems are attractive because they may avoid the need to run a computationally expensive offline land model, can minimize the effect of biases that exist within dynamical outputs, benefit from the strengths of machine learning, and can learn from large datasets, while combining different sources of predictability with varying time horizons. Here we review recent developments in hybrid hydroclimatic forecasting and outline key challenges and opportunities for further research. These include obtaining physically explainable results, assimilating human influences from novel data sources, integrating new ensemble techniques to improve predictive skill, creating seamless prediction schemes that merge short to long lead times, incorporating initial land surface and ocean/ice conditions, acknowledging spatial variability in landscape and atmospheric forcing, and increasing the operational uptake of hybrid prediction schemes.</p>https://hess.copernicus.org/articles/27/1865/2023/hess-27-1865-2023.pdf
spellingShingle L. J. Slater
L. Arnal
M.-A. Boucher
A. Y.-Y. Chang
A. Y.-Y. Chang
S. Moulds
C. Murphy
G. Nearing
G. Shalev
C. Shen
L. Speight
G. Villarini
R. L. Wilby
A. Wood
M. Zappa
Hybrid forecasting: blending climate predictions with AI models
Hydrology and Earth System Sciences
title Hybrid forecasting: blending climate predictions with AI models
title_full Hybrid forecasting: blending climate predictions with AI models
title_fullStr Hybrid forecasting: blending climate predictions with AI models
title_full_unstemmed Hybrid forecasting: blending climate predictions with AI models
title_short Hybrid forecasting: blending climate predictions with AI models
title_sort hybrid forecasting blending climate predictions with ai models
url https://hess.copernicus.org/articles/27/1865/2023/hess-27-1865-2023.pdf
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