大气和海洋科学快报（英文版）2018，Vol.11Issue(3)：246-254,9.
1960年以来雄安新区平均和极端气温变化
Linear trends in mean and extreme temperature in Xiongan New Area, China
摘要
Abstract
On 1 April 2017 China established Xiongan New Area in Hebei Province,which was described as 'a strategy crucial for a millennium to come'.A point of interest for the public is to be aware of the historical climate change in this new area;however,results from previous global-scale or larger-regional-scale averages provide relatively limited information because of the distinct regional differences in climate change.This study analyzes the changes in mean and extreme temperature in this area,based on homogenized daily temperature data for the period 1960-2016.The results show a significant warming in the indices of annual,summer,and winter mean temperature (Tmean),maximum temperature (Tmax),and minimum temperature (Trnin).The linear rate of annual Tnean is 0.34 ℃/decade.Temperatures on the hottest day,the warmest night,the coldest day,and the coldest night,every year,all show increasing trends,with the trends in the two nighttime-related indices being significant.An increasing occurrence of warm days,warm nights,hot days,and tropical nights,but a decreasing occurrence of cold days,cold nights,icing days,and frost days,are found,all of which are significant,except for the occurrences of hot days and icing days.A significant extension of the length of the thermal growing season is also found.The magnitudes of change in most of the temperature indices in Xiongan New Area are larger than those of the adjacent Jing-Jin-Ji and North China regional mean.These results could provide valuable information for policymakers,city planners,engineers,and migrants to this new area.关键词
雄安新区/气候变化/线性趋势/平均气温/极端气温Key words
Xiongan New Area/climate change/linear trend/mean temperature/extreme temperature引用本文复制引用
QIAN Cheng,CAO Li-Juan..1960年以来雄安新区平均和极端气温变化[J].大气和海洋科学快报（英文版）,2018,11(3):246-254,9.基金项目
This study was sponsored by the National Key R&D Program of China (grant number 2016YFA0600404),Key Technology of Integration of Meteorological and Application Projects (grant number CMAGJ2015Z16),the Youth Innovation Promotion Association of CAS (grant number 2016075),and the Jiangsu Collaborative Innovation Center for Climate Change. （grant number 2016YFA0600404）
