In this paper, we use a spectral model for the medium-range numerical weather forecast to discuss the impact of the diurnal variation of solar radiation on the medium-range weather processes. Under the tests of two ty...In this paper, we use a spectral model for the medium-range numerical weather forecast to discuss the impact of the diurnal variation of solar radiation on the medium-range weather processes. Under the tests of two typical winter and summer cases, we find that the influences of the diurnal variation of solar radiation on summer weather are really important, especially on its rainfall, surface heat transport and 500 hPa height field. On winter weather, however, the influences are very weak.展开更多
Purpose:Despite the global shutdown of universities and research laboratories in 2020 due to the COVID-19 pandemic,a significant and unexpected increase in scientific production was observed during 2020 and especially...Purpose:Despite the global shutdown of universities and research laboratories in 2020 due to the COVID-19 pandemic,a significant and unexpected increase in scientific production was observed during 2020 and especially in 2021(Rousseau et al.,2023).A plausible explanation is that researchers took advantage of the lockdown period to write and develop pre-existing ideas.But what happened once that stockpile of ideas was exhausted?Design/methodology/approach:This study aims to address that question by analyzing the scientific output of fourteen highly productive countries using data from three databases:WoS,Scopus,and OpenAlex.Findings:Our analysis shows that,following the production peak in 2021,there was a general decline over the next two years(2022 and 2023)across most Western countries,including Japan and Brazil.However,this trend was not observed in China or India,which have maintained sustained growth since 2021.Russia,by contrast,has shown a continuous decline since 2021,likely related to its involvement in armed conflicts.Notably,this pattern of decline persists even when excluding the broad category of Life Sciences and Biomedicine.Research limitation:The observed phenomenon cannot be fully explained.A broader understanding would require the wide distribution of a questionnaire among researchers and institutions.Practical implications:This study provides insight into how the scientific system responded through its publication output to the temporary suspension of research institutions’activities during the COVID-19 lockdown.Originality/value:Our analysis contributes to understanding the unusual trends in research publications due to the pandemic’s influence.It can be seen as a discussion of a natural experiment in the science of science.展开更多
文摘In this paper, we use a spectral model for the medium-range numerical weather forecast to discuss the impact of the diurnal variation of solar radiation on the medium-range weather processes. Under the tests of two typical winter and summer cases, we find that the influences of the diurnal variation of solar radiation on summer weather are really important, especially on its rainfall, surface heat transport and 500 hPa height field. On winter weather, however, the influences are very weak.
文摘Purpose:Despite the global shutdown of universities and research laboratories in 2020 due to the COVID-19 pandemic,a significant and unexpected increase in scientific production was observed during 2020 and especially in 2021(Rousseau et al.,2023).A plausible explanation is that researchers took advantage of the lockdown period to write and develop pre-existing ideas.But what happened once that stockpile of ideas was exhausted?Design/methodology/approach:This study aims to address that question by analyzing the scientific output of fourteen highly productive countries using data from three databases:WoS,Scopus,and OpenAlex.Findings:Our analysis shows that,following the production peak in 2021,there was a general decline over the next two years(2022 and 2023)across most Western countries,including Japan and Brazil.However,this trend was not observed in China or India,which have maintained sustained growth since 2021.Russia,by contrast,has shown a continuous decline since 2021,likely related to its involvement in armed conflicts.Notably,this pattern of decline persists even when excluding the broad category of Life Sciences and Biomedicine.Research limitation:The observed phenomenon cannot be fully explained.A broader understanding would require the wide distribution of a questionnaire among researchers and institutions.Practical implications:This study provides insight into how the scientific system responded through its publication output to the temporary suspension of research institutions’activities during the COVID-19 lockdown.Originality/value:Our analysis contributes to understanding the unusual trends in research publications due to the pandemic’s influence.It can be seen as a discussion of a natural experiment in the science of science.
