中文摘要：

基于1960～2013年中国沿海110个地面气象站资料，分析了中国沿海极端气温事件的变化特征。结果表明：中国近54a来月最高气温极小值（TXn）、极端最高温（Txx）、极端最低温（TNn）和月最低气温极大值（TNx）都呈上升趋势，其中极端最低气温上升幅度最大，升幅为0．40℃／10a。日较差（DTR）、冷昼日数（TXlop）和冷夜日数（TNlop）呈下降趋势，降幅分别为-0．12℃／10a、-0．7d／10a和-2．19d／10a，暖昼日数（TX90p）和暖夜日数（TN90p）呈显著上升趋势，升幅分别为1．31d／10a和2．24d／10a。SU25和TR20近30a上升幅度分别为6．35d／10a和5．28d／10a。从空间变化来看TXn、TXx、TNn和TNx分别有97％、71％、97％和97％气象站呈上升趋势，大部分都通过了O．01水平的显著性检验。TXlop、TNlop和DTR分别有90％、99％和81％的气象站呈下降趋势。大部分极端气温指数变化趋势与纬度、经度和海拔有显著的相关性。极端气温指数在气候变暖突变前后也存在明显差异，TXlop、TNlop和DTR在气候变暖后明显减少，而其他指数则明显上升。

英文摘要：

Based on the data of 110 meteorological stations in coastal region of China in 1960-2013, the variation of extreme temperature indices was analyzed. The result showed that in the last 54 years the absolute indices, i.e., coldest day （TXn）, warmest day （TXx）, coldest night （TNn） and warmest night （TNx）, have increased significantly, and TNn showed an increasing rate of 0.40℃ per decade. The diurnal temperature range （DTR）, cool days （TX10p） and cool nights （TN10p） have decreased significantly by-0.12℃,-0.7 days and-2.19 days per decade, respectively. The percentile indices, including warm days （TX90p） and warm night （TN90p）, have increased by 1.31 days and 2.24 days per decade, respectively. In the recent 30 years, summer days （SU25） and tropical nights （TR20） have increased by 6.35 days and 5.28 days per decade, respectively. For the spatial dis- tribution of TXn, TXx, TNn and TNx, 97%, 71%, 97% and 97% of meteorological stations showed increasing trends during 1960-2013, respectively, and most stations are statistically significant at the 0.01 level. For TX10p, TN10p and DTR, the proportions of meteorological stations with decreasing trends are up to 90%, 99% and 81%, respectively. Most extreme temperature indices show a good correlation with latitude, longitude, and altitude. After the detected climate abrupt changes, TX10p, TN10p and DTR decreased, and the other indices increased significantly.