2019年7月22—26日,南极研究科学委员会(SCAR)在韩国仁川举办了“第十三届南极地球科学国际会议”(the XIII International Symposium on Antarctic Earth Sciences,ISAES 2019)。SCAR的“南极地球科学国际会议”每两年举办1次,是南极...2019年7月22—26日,南极研究科学委员会(SCAR)在韩国仁川举办了“第十三届南极地球科学国际会议”(the XIII International Symposium on Antarctic Earth Sciences,ISAES 2019)。SCAR的“南极地球科学国际会议”每两年举办1次,是南极地球科学研究的重要国际学术会议。本次会议由韩国极地研究所承办,围绕南极地球科学设置了10大主题、24个分组以及12个边会。来自32个国家的超过450名南极地球科学研究学者参加了本次会议,通过将近430个不同类型的报告分享了各自的研究成果和进展。展开更多
2021年12月,韩国极地研究所极地生命科学部在国际植物学期刊《The Plant Cell》上在线发表了题为"The two clock proteins CCA1 and LHY activate VIN3 transcription during vernalization through the vernalization-responsive ...2021年12月,韩国极地研究所极地生命科学部在国际植物学期刊《The Plant Cell》上在线发表了题为"The two clock proteins CCA1 and LHY activate VIN3 transcription during vernalization through the vernalization-responsive cis-element"的研究论文,研究发现CCA1和LHY与VIN3启动子中的VREVIN3结合,在春化过程中诱导其转录。展开更多
The European Centre for Medium-Range Weather Forecasts Reanalysis ERA40,National Centers for Environmental Prediction(NCEP) 20th-century reanalysis,and three station observations along an Antarctic traverse from Zhong...The European Centre for Medium-Range Weather Forecasts Reanalysis ERA40,National Centers for Environmental Prediction(NCEP) 20th-century reanalysis,and three station observations along an Antarctic traverse from Zhongshan to Dome-A stations are used to assess 2-m temperature simulation skill of a regional climate model.This model(HIRHAM) is from the Alfred Wegener Institute for Polar and Marine Research in Germany.Results show:(1) The simulated multiyear averaged 2-m temperature field pattern is close to that of ERA40 and NCEP;(2) the cold bias relative to ERA40 over all of Antarctic regions is 1.8℃,and that to NCEP reaches 5.1℃;(3) bias of HIRHAM relative to ERA40 has seasonal variation,with a cold bias mainly in the summer,as much as 3.4℃.There is a small inland warm bias in autumn of 0.3℃.Further analysis reveals that the reason for the cold bias of 2-m temperature is that physical conditions of the near-surface boundary layer simulated by HIRHAM are different from observations:(1) During the summer,observations show that near-surface atmospheric stability conditions have both inversions and non-inversions,which is due to the existence of both positive and negative sensible heat fluxes,but HIRHAM almost always simulates a situation of inversion and negative sensible heat flux;(2) during autumn and winter,observed near-surface stability is almost always that of inversions,consistent with HIRHAM simulations.This partially explains the small bias during autumn and winter.展开更多
文摘2019年7月22—26日,南极研究科学委员会(SCAR)在韩国仁川举办了“第十三届南极地球科学国际会议”(the XIII International Symposium on Antarctic Earth Sciences,ISAES 2019)。SCAR的“南极地球科学国际会议”每两年举办1次,是南极地球科学研究的重要国际学术会议。本次会议由韩国极地研究所承办,围绕南极地球科学设置了10大主题、24个分组以及12个边会。来自32个国家的超过450名南极地球科学研究学者参加了本次会议,通过将近430个不同类型的报告分享了各自的研究成果和进展。
文摘2021年12月,韩国极地研究所极地生命科学部在国际植物学期刊《The Plant Cell》上在线发表了题为"The two clock proteins CCA1 and LHY activate VIN3 transcription during vernalization through the vernalization-responsive cis-element"的研究论文,研究发现CCA1和LHY与VIN3启动子中的VREVIN3结合,在春化过程中诱导其转录。
基金supported by the Program of China Polar Environment Investigation and Assessment(2011–2015)the Basic Scientific Special Project "Climate System Model" of Chinese Academy of Meteorological Science(Grant No.2012Z001)the National Natural Science Foundation of China(Grant Nos.41005045 and 41206179)
文摘The European Centre for Medium-Range Weather Forecasts Reanalysis ERA40,National Centers for Environmental Prediction(NCEP) 20th-century reanalysis,and three station observations along an Antarctic traverse from Zhongshan to Dome-A stations are used to assess 2-m temperature simulation skill of a regional climate model.This model(HIRHAM) is from the Alfred Wegener Institute for Polar and Marine Research in Germany.Results show:(1) The simulated multiyear averaged 2-m temperature field pattern is close to that of ERA40 and NCEP;(2) the cold bias relative to ERA40 over all of Antarctic regions is 1.8℃,and that to NCEP reaches 5.1℃;(3) bias of HIRHAM relative to ERA40 has seasonal variation,with a cold bias mainly in the summer,as much as 3.4℃.There is a small inland warm bias in autumn of 0.3℃.Further analysis reveals that the reason for the cold bias of 2-m temperature is that physical conditions of the near-surface boundary layer simulated by HIRHAM are different from observations:(1) During the summer,observations show that near-surface atmospheric stability conditions have both inversions and non-inversions,which is due to the existence of both positive and negative sensible heat fluxes,but HIRHAM almost always simulates a situation of inversion and negative sensible heat flux;(2) during autumn and winter,observed near-surface stability is almost always that of inversions,consistent with HIRHAM simulations.This partially explains the small bias during autumn and winter.
