Future projections of wind and solar energy resources over China from regional climate models based on bias correction

In this study, the wind and solar energy resources over China are projected during 2031–2060 under the Representative Concentration Pathway (RCP) 8.5 scenario with the Weather Research and Forecasting (WRF) model and Regional Climate Model version 4 (RegCM4). The bias correction method based on prob...

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Main Authors: Tongxin Li, Pinhong Hui, Jianping Tang, Juan Fang
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:Environmental Research Communications
Subjects:
Online Access:https://doi.org/10.1088/2515-7620/acddbb
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author Tongxin Li
Pinhong Hui
Jianping Tang
Juan Fang
author_facet Tongxin Li
Pinhong Hui
Jianping Tang
Juan Fang
author_sort Tongxin Li
collection DOAJ
description In this study, the wind and solar energy resources over China are projected during 2031–2060 under the Representative Concentration Pathway (RCP) 8.5 scenario with the Weather Research and Forecasting (WRF) model and Regional Climate Model version 4 (RegCM4). The bias correction method based on probability distribution is applied to correct the simulated 100-m wind speed and surface down-welling shortwave radiation. The results show that the bias correction method can remarkably improve the skill of the individual simulations and the ensemble mean in capturing the features of wind speed and shortwave radiation from the aspects of spatial distribution, annual cycle, quantile distribution, probability distribution and cumulative probability distribution. The future projections from the bias-corrected ensemble show that both the wind and solar energy resources are abundant over northwestern China, with higher wind power density reaching up to 130 W m ^−2 in winter and richer surface down-welling shortwave radiation above 240 W m ^−2 in summer. Generally, the wind and solar energy resources will decrease in the future, by around 6% over the western regions and 4% over southeastern China in winter, respectively. The interannual variability of the two resources is projected to increase over most areas of northern China, indicating a decrease in the stability of resources, while tends to decrease over Southeastern China.
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spelling doaj.art-ea5c223b94c94602855ea9aaf54b4e012023-06-21T12:14:38ZengIOP PublishingEnvironmental Research Communications2515-76202023-01-015606100410.1088/2515-7620/acddbbFuture projections of wind and solar energy resources over China from regional climate models based on bias correctionTongxin Li0Pinhong Hui1Jianping Tang2https://orcid.org/0000-0002-1098-2656Juan Fang3School of Atmospheric Sciences, Nanjing University , Nanjing, 210023, People’s Republic of China; Key Laboratory of Meteorology and Ecological Environment of Hebei Province, Hebei Provincial Institute of Meteorological Sciences, Shijiazhuang, 050021, People’s Republic of ChinaJiangsu Climate Center, Jiangsu Provincial Meteorological Bureau, Nanjing, 210019, People’s Republic of ChinaSchool of Atmospheric Sciences, Nanjing University , Nanjing, 210023, People’s Republic of ChinaSchool of Atmospheric Sciences, Nanjing University , Nanjing, 210023, People’s Republic of ChinaIn this study, the wind and solar energy resources over China are projected during 2031–2060 under the Representative Concentration Pathway (RCP) 8.5 scenario with the Weather Research and Forecasting (WRF) model and Regional Climate Model version 4 (RegCM4). The bias correction method based on probability distribution is applied to correct the simulated 100-m wind speed and surface down-welling shortwave radiation. The results show that the bias correction method can remarkably improve the skill of the individual simulations and the ensemble mean in capturing the features of wind speed and shortwave radiation from the aspects of spatial distribution, annual cycle, quantile distribution, probability distribution and cumulative probability distribution. The future projections from the bias-corrected ensemble show that both the wind and solar energy resources are abundant over northwestern China, with higher wind power density reaching up to 130 W m ^−2 in winter and richer surface down-welling shortwave radiation above 240 W m ^−2 in summer. Generally, the wind and solar energy resources will decrease in the future, by around 6% over the western regions and 4% over southeastern China in winter, respectively. The interannual variability of the two resources is projected to increase over most areas of northern China, indicating a decrease in the stability of resources, while tends to decrease over Southeastern China.https://doi.org/10.1088/2515-7620/acddbbregional climate modelbias correction methodwind energy resourcesolar energy resourcefuture projections
spellingShingle Tongxin Li
Pinhong Hui
Jianping Tang
Juan Fang
Future projections of wind and solar energy resources over China from regional climate models based on bias correction
Environmental Research Communications
regional climate model
bias correction method
wind energy resource
solar energy resource
future projections
title Future projections of wind and solar energy resources over China from regional climate models based on bias correction
title_full Future projections of wind and solar energy resources over China from regional climate models based on bias correction
title_fullStr Future projections of wind and solar energy resources over China from regional climate models based on bias correction
title_full_unstemmed Future projections of wind and solar energy resources over China from regional climate models based on bias correction
title_short Future projections of wind and solar energy resources over China from regional climate models based on bias correction
title_sort future projections of wind and solar energy resources over china from regional climate models based on bias correction
topic regional climate model
bias correction method
wind energy resource
solar energy resource
future projections
url https://doi.org/10.1088/2515-7620/acddbb
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