【摘 要】
:
根据FGOALS-s2模式CMIP5有代表性浓度路径(RCP)试验数据,对二十一世纪中国东部六城市极端高温和热舒适度预估进行了研究.这里定义极端高温为最高温度超过目前的气候下,当地城市最热夏天的90%(TX90).这里描述的热舒适度指数是结合了空气温度和相对湿度的指数,可以理解为大类感知温度,即感觉有多热.
【出 处】
:
中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室2013年度LASG年会
论文部分内容阅读
根据FGOALS-s2模式CMIP5有代表性浓度路径(RCP)试验数据,对二十一世纪中国东部六城市极端高温和热舒适度预估进行了研究.这里定义极端高温为最高温度超过目前的气候下,当地城市最热夏天的90%(TX90).这里描述的热舒适度指数是结合了空气温度和相对湿度的指数,可以理解为大类感知温度,即感觉有多热.
其他文献
中尺度涡在中国南海海域广泛分布,研究南海中尺度涡有助于更好地了解中尺度涡对大洋环流以及对中国气候所带来的影响.本文首先针对南海海域中尺度涡的自动识别方法开展研究,进而获取南海海域中尺度涡的时空分布与演变等特征.
The highest concentration of ozone exists in the tropical stratosphere, thus, the tropical total column ozone (TCO) change would affect global ozone distribution through dynamic transport.
We investigated temporal and vertical structure variations in the capacity of the low-level Somalia Jet (SMJ) to transport moisture from the Southern to the Northern hemisphere in boreal summer during
Observational studies have pointed out that the extreme winter storms of 2007/2008 in China were most closely associated with the third leading mode (LM3) of the East Asia Winter Monsoon (EAWM).We inv
In recent decades, recurrent autumn droughts happen over southern China,especially for the severe droughts in autumn of 2009, which created serious drinking water problems for millions of people and d
This study demonstrates a robust relationship between Indo-Pacific warm pool and North Pacific Ocean Dipole (IPOD) and East Asian summer monsoon (EASM) using observational datasets and NCAR Community
Composite analysis from NCEP-NCAR reanalysis datasets over the period 1948-2007 indicates that stronger East Asian winter monsoons (EAWM) and stronger Australian summer monsoons (ASM) generally co-exi
厄尔尼诺-南方涛动现象与东亚水汽环流密切相关.它与夏季东亚水汽环流的两个主要模态存在准4年的耦合循环.在厄尔尼诺向拉尼娜转换的夏季,西太副高位置偏西南,赤道-副热带西北太平洋反气旋式水汽环流异常控制东亚地区;在厄尔尼诺维持的夏季,西太副高位置维持在气候态,强度偏强,气旋-反气旋-气旋的"三极"结构的水汽环流异常控制东亚地区.反之,则相反.
基于观测资料和CMIP5的NCAR CCSM4模式结果,我们利用扩展经验正交函数(EEOF)分析了全球海面温度异常(SSTA)的时空变化结构.在全球变暖背景下的SST变率主要由一个驻波型的ENSO全球模态以及分别代表其增长和衰减相位的两个模态组成.驻波型模态显示强烈的变冷趋势,但对全球平均温度变化几乎没有贡献;然而其增长和衰减模态却显示变暖的趋势,能在很大程度上反映全球平均温度的增高.
Previous studies suggest that North Pacific extratropical atmospheric variability influences ENSO via the seasonal footprinting mechanism (SFM).This study confirms that quadrapole sea surface temperat