Absorption of solar radiation by water vapor in the atmosphere. Part II: sensitivity tests with a general circulation model

Souza, Ênio Pereira de; Dias, Pedro Leite da Silva; Plana-Fattori, Artemio; Chagas, J. C. S.

doi:10.1590/s0102-261x1997000300007

Cited by 3 publications

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“…2f-j). The positive bias in cloud cover exceeds 20%, while the negative bias is in the range of 6-8%, indicating still the presence of shortcomings in the representation of cloud processes in climate models (De Souza et al 1997;Solomon et al 2009). The simulated TAS shows a prevailing warm bias across the continent in the range of 0.4-1 °C.…”

Section: Model Evaluationmentioning

confidence: 99%

Current and future potential of solar and wind energy over Africa using the RegCM4 CORDEX-CORE ensemble

et al. 2020

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Renewable energy is key for the development of African countries, and knowing the best location for the implementation of solar and wind energy projects is important within this context. The purpose of this study is to assess the impact of climate change on solar and wind energy potential over Africa under low end (RCP2.6) and high end (RCP8.5) emission scenarios using a set of new high resolution (25 km) simulations with the Regional Climate Model version 4 (RegCM4) produced as part of the CORDEX-CORE initiative. The projections focus on two periods: (i) the near future (2021-2040) and ii) the mid-century future (2041)(2042)(2043)(2044)(2045)(2046)(2047)(2048)(2049)(2050)(2051)(2052)(2053)(2054)(2055)(2056)(2057)(2058)(2059)(2060). The performance of the RegCM4 ensemble mean (Rmean) in simulating relevant present climate variables (1995)(1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014) is first evaluated with respect to the ERA5 reanalysis and satellite-based data. The Rmean reproduces reasonably well the observed spatial patterns of solar irradiance, air temperature, total cloud cover, wind speed at 100 m above the ground level, photovoltaic power potential (PVP), concentrated solar power output (CSPOUT) and wind power density (WPD) over Africa, though some biases are still evident, especially for cloud-related variables. For the future climate, the sign of the changes is consistent in both scenarios but with more intense magnitude in the middle of the century RCP8.5 scenario. Considering the energy variables, the Rmean projects a general decrease in PVP, which is more pronounced in the mid-century future and under RCP8.5 (up to 2%). Similarly, a general increase in CSPOUT (up to 2%) is projected over the continent under both the RCP2.6 and RCP8.5 scenarios. The projection in WPD shows a similar change (predominant increase) in the near and mid-century future slices under both RCPs with a maximum increase of 20%. The present study suggests that the RCP2.6 emission scenario, in general, favours the implementation of renewable energy in Africa compared to the RCP8.5.

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Section: Model Evaluationmentioning

confidence: 99%

Current and future potential of solar and wind energy over Africa using the RegCM4 CORDEX-CORE ensemble

et al. 2020

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Interpretable deep learning models for hourly solar radiation prediction based on graph neural network and attention

2022

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Impacts of a New Solar Radiation Parameterization on the CPTEC AGCM Climatological Features

Barbosa

Тарасова

Cavalcanti

2008

Journal of Applied Meteorology and Climatology

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We investigate the impacts of an improved atmospheric absorption on radiative fluxes, atmospheric circulation and hydrological cycle for long-term GCM integrations. For these runs we use the operational version of the CPTEC AGCM and its enhanced version with a new solar radiation scheme. There is an 8% increase in the annual mean global average atmospheric absorption in the enhanced integration as compared with the operational model integration. The extra absorption is due to gases (0.5%), water vapor continuum (1.5%) and background aerosols (6%), which were not considered in the operational solar radiation scheme. The model overestimation of DJF precipitation over the SPCZ and SACZ regions is reduced by 0.5-1.0 mm day −1 and over the northern hemisphere storm tracks region by 0.5 mm day −1 . In the monthly time scale, the changes on the precipitation distribution over the SACZ region are found to be much larger ± 2-3mm day −1 . INPE ePrint: sid.inpe.br/mtc-m17@80/2007/11.26.12.45 v1 2007 1

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Absorption of solar radiation by water vapor in the atmosphere. Part II: sensitivity tests with a general circulation model

Cited by 3 publications

References 0 publications

Current and future potential of solar and wind energy over Africa using the RegCM4 CORDEX-CORE ensemble

Current and future potential of solar and wind energy over Africa using the RegCM4 CORDEX-CORE ensemble

Interpretable deep learning models for hourly solar radiation prediction based on graph neural network and attention

Impacts of a New Solar Radiation Parameterization on the CPTEC AGCM Climatological Features

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