刘舸,赵平,南素兰,陈军明,王慧美. 2018. 第三次青藏高原大气科学试验气象学报专刊------夏季青藏高原上空热力异常与其上下游大气环流联系的研究进展[J]. 气象学报, (0):-, doi:10.11676/qxxb2018.058
第三次青藏高原大气科学试验气象学报专刊------夏季青藏高原上空热力异常与其上下游大气环流联系的研究进展
Advances in the link between the Tibetan Plateau thermal anomaly and atmospheric circulations over its upstream and downstream regions
投稿时间:2018-06-06  修订日期:2018-09-14
DOI:10.11676/qxxb2018.058
中文关键词:  亚洲—太平洋涛动,青藏高原,数值模拟,萨赫勒,西非季风降水
英文关键词:Asian-Pacific Oscillation (APO), Tibetan Plateau , numerical simulation, Sahel, West African monsoon precipitation
基金项目:国家自然科学基金(91437218、41775084和91637312)、公益性行业(气象)科研专项(GYHY201406001)、气科院基本科研业务费(2017Z013)
作者单位E-mail
刘舸 中国气象科学研究院灾害天气国家重点实验室 liuge@cma.gov.cn 
赵平 中国气象科学研究院灾害天气国家重点实验室 zhaop@cma.gov.cn 
南素兰 中国气象科学研究院灾害天气国家重点实验室 nansl@cma.gov.cn 
陈军明 中国气象科学研究院灾害天气国家重点实验室 chenjm@cma.gov.cn 
王慧美 中国气象科学研究院灾害天气国家重点实验室 hui_meiw@163.com 
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中文摘要:
      围绕夏季青藏高原热力异常与其上下游大气环流在年际尺度变化上的联系,对最新的研究成果做了简要介绍。通过观测资料分析与数值试验,指出在年际尺度上夏季青藏高原热力异常与同期亚洲—太平洋涛动(APO)具有显著且稳定的联系,前者可能通过调节亚洲和中东太平洋热带外大尺度垂直环流异常影响后者。另外,夏季青藏高原热力异常对高原上空及更大范围上对流层温度的年际变化也有一定贡献,进而通过对上游大尺度环流的调节作用影响到同期西非萨赫勒地区的降水。夏季青藏高原热力异常只是导致其上下游大气环流年际变化的一个原因,其他影响效应尚需今后进一步探讨。
英文摘要:
      With respect to the relationship between the thermal anomaly over the Tibetan Plateau (TP) and atmospheric circulations over the TP’s upstream and downstream regions on interannual timescale, the present paper briefly summarizes latest research, which reveals that on the interannual timescale, the TP thermal anomaly is significantly and stably correlated with the Asian-Pacific Oscillation (APO) during summer. This relationship is likely due to the impact of the former on the latter through regulating anomalous vertical circulation cell over the extratropical Asia and eastern-central Pacific sector. In addition, during summer, the TP thermal anomaly may contribute to the interannual variability of tropospheric temperature over the TP and its adjacent larger area and associated upstream large-scale circulation, and accordingly affects precipitation over Sahel, West African monsoon region. The TP thermal anomaly is only one of the factors affecting the interannual variations of the TP upstream and downstream atmospheric circulations, and the other influences need further investigation in the future.
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