As an important link in the development of modern quality education,art education is one of the methods to guide students to have a diversified vision.Under the background of multiculturalism,we need to explore the co...As an important link in the development of modern quality education,art education is one of the methods to guide students to have a diversified vision.Under the background of multiculturalism,we need to explore the connotation and value of art education with the concept of“three highs and four new,”so that students can realize interdisciplinary and cross-cultural cognition through an immersive experience and practical operation in a wide range of multicultural situations,and to develop the knowledge of art education with the concept of“three highs and four new.”Based on the multicultural background,this paper focuses on the integration of multiculturalism into the reform practice of“student-centered”in colleges and universities,so as to cultivate art talents adapted to the multicultural background,in order to achieve the great mission of“three highs and four new”and better lead the innovative development of art education in colleges and universities.展开更多
Based on the reanalysis data of global 500hPa geopotential height (NCEP NCAR CDAS-1) and tropical Pacific SSTs, the characteristics of global subtropical highs and their response to tropical eastern Pacific SST are i...Based on the reanalysis data of global 500hPa geopotential height (NCEP NCAR CDAS-1) and tropical Pacific SSTs, the characteristics of global subtropical highs and their response to tropical eastern Pacific SST are investigated. Results show that global subtropical highs respond to SST consistently. Subtropical high intensity correlates to the 3 months leading SST maximally. The relationship between SST and 500hPa height stands out in low latitudes. The time for 500hPa height reaching maximuxn correlation to SST is 2 months later in latitude of 10 degree and 9 months in latitude of 30 degree than equatorial zone. And the response of atmospheric circulation over extratropic performs as wave train, and the response is more significant in the condition of warmer SST. Persistence of SSTs and subtropical highs changes obviously from season to season. Minimum persistence of subtropical highs in September and October may relate to the low persistence of SSTs in August and September.展开更多
Gravity modelling was carried out along five profiles that traverse the Eastern Cape Province of South Africa in order to determine the depositional surface and isochore thickness of the Ecca sediments.Gravity models ...Gravity modelling was carried out along five profiles that traverse the Eastern Cape Province of South Africa in order to determine the depositional surface and isochore thickness of the Ecca sediments.Gravity models of the subsurface rock density reveal that the Ecca Group has a maximum vertical thickness of about 3215 ± 160 m.The maximum depositional surface（elevation）above sea level for the Ecca sediments is about 500 m,whilst the depth below sea level reaches about10000 m.Correlation of the isochore thickness maps with the depositional surfaces shows that the sediments in the basement highs were subsided,deformed,eroded and deposited in the basement lows.The basement highs served as the source area（s） for the sediments in the basement lows,thus basement highs are characterized with thin sediment cover whilst the lows have thick sediment cover.展开更多
Using reanalysis data provided by the U.S. National Centers for Environmental Prediction/National Center for Atmospheric Research, the potential relationship between the E1 Nifio-Southern Oscillation （ENSO） cycle an...Using reanalysis data provided by the U.S. National Centers for Environmental Prediction/National Center for Atmospheric Research, the potential relationship between the E1 Nifio-Southern Oscillation （ENSO） cycle and blocking highs in three key regions of Eurasia （Ural, Baikal, and Okhotsk） from 1950 to 2008 is analyzed. Composite analysis of 500 hPa geopotential height field during different stages of ENSO reveals that in the winters of E1 Nifio （EN） years, there is significant negative anomaly of geopotential height in the three key regions. In the winters of La Nifia （LN） years, on the other hand, significant positive anomaly of geopotential height is observed in Eastern Ural, Baikal, and Okhotsk. In summer, Okhotsk exhibits positive anomaly, which is significant at a confidence level of 90% by Student＇s t-test during the developing stage of an LN year. In the developing stage of an EN year, geopotential height field at 500 hPa manifests positive （negative） anomaly in Baikal （Ural and Okhotsk）, while the geopotential height field at 500 hPa exhibits positive （negative） anomaly in Ural and Okhotsk （Baikal） during the decaying stage of both EN and LN years. However, these abnormities are insignificant in a developing EN year, decaying EN year, and the summer of a decaying LN year. By analyzing 500 hPa geopotential height field during different phases of the ENSO cycle, it is observed that results of the case study are consistent with those of composite analysis. Annual average blocking is likewise examined during the different stages of ENSO from 1950 to 2008. Combined with composite analysis and case study, results indicate that blockings in the three key regions are suppressed （enhanced） during the winters of EN （LN） years. In summer, the influence of ENSO on the blockings in the three key regions is not as significant as that in winter. Evidently, developing LN may enhance blockings in Okhotsk. Influence factors on blockings are various and complex. This paper indic展开更多
An enhanced Warm Arctic-Cold Eurasia(WACE)pattern has been a notable feature in recent winters of the Northern Hemisphere.However,divergent results between model and observational studies of the WACE still remain.This...An enhanced Warm Arctic-Cold Eurasia(WACE)pattern has been a notable feature in recent winters of the Northern Hemisphere.However,divergent results between model and observational studies of the WACE still remain.This study evaluates the performance of 39 climate models participating in the Coupled Model Intercomparison Project Phase 6(CMIP6)in simulating the WACE pattern in winter of 1980-2014 and explores the key factors causing the differences in the simulation capability among the models.The results show that the multimodel ensemble(MME)can better simulate the spatial distribution of the WACE pattern than most single models.Models that can/cannot simulate both the climatology and the standard deviation of the Eurasian winter surface air temperature well,especially the latter,usually can/cannot simulate the WACE pattern well.This mainly results from the different abilities of the models to simulate the range and intensity of the warm anomaly in the Barents Sea-Kara seas(BKS)region.Further analysis shows that a good performance of the models in the BKS area is usually related to their ability to simulate location and persistence of Ural blocking(UB),which can transport heat to the BKS region,causing the warm Arctic,and strengthen the westerly trough downstream,cooling central Eurasia.Therefore,simulation of UB is key and significantly affects the model’s performance in simulating the WACE.展开更多
Based on the daily Japanese 55-yr reanalysis data,this study analyzes the maintenance mechanism for 53 boreal winter blocking highs around the Ural Mountains(UBHs)during 1958-2018 based on the atmospheric energy budge...Based on the daily Japanese 55-yr reanalysis data,this study analyzes the maintenance mechanism for 53 boreal winter blocking highs around the Ural Mountains(UBHs)during 1958-2018 based on the atmospheric energy budget equations.After decomposing the circulation into background flow,low-frequency anomalies,and high-frequency eddies,it was found that the interaction between the background flow and low-frequency anomalies is conducive to the maintenance of the UBHs.Due to the southwestward gradient in the climatological mean air temperature over the Eurasian continent,it is easy for the air temperature anomalies as well as the wind velocity anomalies in the middle and lower troposphere induced by the UBHs to facilitate the positive conversion of baroclinic energy associated with the background flow into the UBHs.Likewise,the conversion of barotropic energy associated with the background flow is also evident in the upper troposphere,in which the climatological mean westerlies have evident southward gradient to the northwest of Lake Baikal and southwestward gradient over Barents Sea.Note that the conversion of baroclinic energy associated with the background flow is dominant throughout the lifecycle of UBHs,acting as the major contributor to the maintenance of the UBHs.Although transient eddies facilitate maintenance of the UBHs via positive conversion of barotropic energy in the middle and upper troposphere,they hinder the maintenance of UBHs via negative conversion of baroclinic energy in the lower troposphere.The diabatic heating anomalies tend to counteract the local air temperature anomalies in the middle and lower troposphere,which damps the available potential energy of UBHs and acts as a negative contributor to the UBHs.展开更多
In this paper,using a nonlinear low-order barotropic system with orography and momentum forcing as well as dissipation,we have theoretically calculated the two kinds of curves for the seasonal northward movement of su...In this paper,using a nonlinear low-order barotropic system with orography and momentum forcing as well as dissipation,we have theoretically calculated the two kinds of curves for the seasonal northward movement of subtropical highs.It has been shown that the theoretical results resemble basically with the analysed results of wave spectrum data.展开更多
The auto market had a better year as a whole in 2006, thanks to forces of locally-owned brands and economical cars. And the market is expected to maintain its soaring momentum, with the
The effect of local basic flow structure pattern(BFSP)on a blocking high formation is investigated within the framework of forced dissipation KDV dynamics.The zonal and meridional positions of the high's center ex...The effect of local basic flow structure pattern(BFSP)on a blocking high formation is investigated within the framework of forced dissipation KDV dynamics.The zonal and meridional positions of the high's center excited by a heat source depend on the BFSP selected.展开更多
Money flowing into commodities-one analyst called it a "commodity pandemonium" - powered cotton futures to new rally highs last week in holiday-shortened trading.
基金2022 Hunan Provincial General Higher Education School Teaching Reform Research Key Project“Research and Practice of Innovative Art Talent Cultivation Mode in Local Comprehensive Colleges and Universities Under the Strategy of‘Three Highs and Four New’”(Project number:HNJG-2022-0108)。
文摘As an important link in the development of modern quality education,art education is one of the methods to guide students to have a diversified vision.Under the background of multiculturalism,we need to explore the connotation and value of art education with the concept of“three highs and four new,”so that students can realize interdisciplinary and cross-cultural cognition through an immersive experience and practical operation in a wide range of multicultural situations,and to develop the knowledge of art education with the concept of“three highs and four new.”Based on the multicultural background,this paper focuses on the integration of multiculturalism into the reform practice of“student-centered”in colleges and universities,so as to cultivate art talents adapted to the multicultural background,in order to achieve the great mission of“three highs and four new”and better lead the innovative development of art education in colleges and universities.
基金supported by National Natural Science Foundation of China (49635190).
文摘Based on the reanalysis data of global 500hPa geopotential height (NCEP NCAR CDAS-1) and tropical Pacific SSTs, the characteristics of global subtropical highs and their response to tropical eastern Pacific SST are investigated. Results show that global subtropical highs respond to SST consistently. Subtropical high intensity correlates to the 3 months leading SST maximally. The relationship between SST and 500hPa height stands out in low latitudes. The time for 500hPa height reaching maximuxn correlation to SST is 2 months later in latitude of 10 degree and 9 months in latitude of 30 degree than equatorial zone. And the response of atmospheric circulation over extratropic performs as wave train, and the response is more significant in the condition of warmer SST. Persistence of SSTs and subtropical highs changes obviously from season to season. Minimum persistence of subtropical highs in September and October may relate to the low persistence of SSTs in August and September.
基金the National Research Foundation(NRF)(Grant UID:101980)Govan Mbeki Research and Development Centre(GMRDC),University of Fort Hare for financial support
文摘Gravity modelling was carried out along five profiles that traverse the Eastern Cape Province of South Africa in order to determine the depositional surface and isochore thickness of the Ecca sediments.Gravity models of the subsurface rock density reveal that the Ecca Group has a maximum vertical thickness of about 3215 ± 160 m.The maximum depositional surface（elevation）above sea level for the Ecca sediments is about 500 m,whilst the depth below sea level reaches about10000 m.Correlation of the isochore thickness maps with the depositional surfaces shows that the sediments in the basement highs were subsided,deformed,eroded and deposited in the basement lows.The basement highs served as the source area（s） for the sediments in the basement lows,thus basement highs are characterized with thin sediment cover whilst the lows have thick sediment cover.
基金Key project of the medium-range forecasting technology of the destructive weather (freezing temperatures, rains, snows and cold damages) from China Meteorological Administration (CMATG20092D02)Key Project of National Science and Technology Support Program (2007BAC29B03)
文摘Using reanalysis data provided by the U.S. National Centers for Environmental Prediction/National Center for Atmospheric Research, the potential relationship between the E1 Nifio-Southern Oscillation （ENSO） cycle and blocking highs in three key regions of Eurasia （Ural, Baikal, and Okhotsk） from 1950 to 2008 is analyzed. Composite analysis of 500 hPa geopotential height field during different stages of ENSO reveals that in the winters of E1 Nifio （EN） years, there is significant negative anomaly of geopotential height in the three key regions. In the winters of La Nifia （LN） years, on the other hand, significant positive anomaly of geopotential height is observed in Eastern Ural, Baikal, and Okhotsk. In summer, Okhotsk exhibits positive anomaly, which is significant at a confidence level of 90% by Student＇s t-test during the developing stage of an LN year. In the developing stage of an EN year, geopotential height field at 500 hPa manifests positive （negative） anomaly in Baikal （Ural and Okhotsk）, while the geopotential height field at 500 hPa exhibits positive （negative） anomaly in Ural and Okhotsk （Baikal） during the decaying stage of both EN and LN years. However, these abnormities are insignificant in a developing EN year, decaying EN year, and the summer of a decaying LN year. By analyzing 500 hPa geopotential height field during different phases of the ENSO cycle, it is observed that results of the case study are consistent with those of composite analysis. Annual average blocking is likewise examined during the different stages of ENSO from 1950 to 2008. Combined with composite analysis and case study, results indicate that blockings in the three key regions are suppressed （enhanced） during the winters of EN （LN） years. In summer, the influence of ENSO on the blockings in the three key regions is not as significant as that in winter. Evidently, developing LN may enhance blockings in Okhotsk. Influence factors on blockings are various and complex. This paper indic
基金the National Natural Science Foundation of China(Grant Nos.41790471,42075040,and U1902209)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA20100304)the National Key Research and Development Program of China(2018YFA0606203,2019YFC1510400).
文摘An enhanced Warm Arctic-Cold Eurasia(WACE)pattern has been a notable feature in recent winters of the Northern Hemisphere.However,divergent results between model and observational studies of the WACE still remain.This study evaluates the performance of 39 climate models participating in the Coupled Model Intercomparison Project Phase 6(CMIP6)in simulating the WACE pattern in winter of 1980-2014 and explores the key factors causing the differences in the simulation capability among the models.The results show that the multimodel ensemble(MME)can better simulate the spatial distribution of the WACE pattern than most single models.Models that can/cannot simulate both the climatology and the standard deviation of the Eurasian winter surface air temperature well,especially the latter,usually can/cannot simulate the WACE pattern well.This mainly results from the different abilities of the models to simulate the range and intensity of the warm anomaly in the Barents Sea-Kara seas(BKS)region.Further analysis shows that a good performance of the models in the BKS area is usually related to their ability to simulate location and persistence of Ural blocking(UB),which can transport heat to the BKS region,causing the warm Arctic,and strengthen the westerly trough downstream,cooling central Eurasia.Therefore,simulation of UB is key and significantly affects the model’s performance in simulating the WACE.
基金Supported by the National Natural Science Foundation of China(42088101,42025502,41575057,and 41975063)Qing Lan Project of Jiangsu Province,China。
文摘Based on the daily Japanese 55-yr reanalysis data,this study analyzes the maintenance mechanism for 53 boreal winter blocking highs around the Ural Mountains(UBHs)during 1958-2018 based on the atmospheric energy budget equations.After decomposing the circulation into background flow,low-frequency anomalies,and high-frequency eddies,it was found that the interaction between the background flow and low-frequency anomalies is conducive to the maintenance of the UBHs.Due to the southwestward gradient in the climatological mean air temperature over the Eurasian continent,it is easy for the air temperature anomalies as well as the wind velocity anomalies in the middle and lower troposphere induced by the UBHs to facilitate the positive conversion of baroclinic energy associated with the background flow into the UBHs.Likewise,the conversion of barotropic energy associated with the background flow is also evident in the upper troposphere,in which the climatological mean westerlies have evident southward gradient to the northwest of Lake Baikal and southwestward gradient over Barents Sea.Note that the conversion of baroclinic energy associated with the background flow is dominant throughout the lifecycle of UBHs,acting as the major contributor to the maintenance of the UBHs.Although transient eddies facilitate maintenance of the UBHs via positive conversion of barotropic energy in the middle and upper troposphere,they hinder the maintenance of UBHs via negative conversion of baroclinic energy in the lower troposphere.The diabatic heating anomalies tend to counteract the local air temperature anomalies in the middle and lower troposphere,which damps the available potential energy of UBHs and acts as a negative contributor to the UBHs.
文摘In this paper,using a nonlinear low-order barotropic system with orography and momentum forcing as well as dissipation,we have theoretically calculated the two kinds of curves for the seasonal northward movement of subtropical highs.It has been shown that the theoretical results resemble basically with the analysed results of wave spectrum data.
文摘The auto market had a better year as a whole in 2006, thanks to forces of locally-owned brands and economical cars. And the market is expected to maintain its soaring momentum, with the
基金This study is financially supported partly by the Laboratory of Numerical Modelling for Atmospheric SciencesGeophysical Fluid Dynamics(LASG),Academia Sinicapartly by State Meteorological Administration Climate Research Funds
文摘The effect of local basic flow structure pattern(BFSP)on a blocking high formation is investigated within the framework of forced dissipation KDV dynamics.The zonal and meridional positions of the high's center excited by a heat source depend on the BFSP selected.
文摘Money flowing into commodities-one analyst called it a "commodity pandemonium" - powered cotton futures to new rally highs last week in holiday-shortened trading.
