Temporal and spatial variations of extremely high temperature in China under different emission scenarios of CMIP5
XU Xinchuang1， YAN Junhui2， LIU Guangxu3， ZHONG Xuebin4
1.The School of Resources Environment Science and Technology， Hubei University of Science and Technology， Xianning， Hubei 437100；2.College of Urban and Environmental Sciences， Xinyan Normal University， Xinyang， Henan 464000； 3. Gannan Normal University， Ganzhou， Jiangxi 341000；4.The School of Resources Environment Science and Technology， Land and Water Resources Research Center of the Middle Changjiang River， Xianning， Hubei 437100
Abstract：Based on the scenarios data of five climate modes by the Coupled Model Intercomparison Project Phase 5， this paper analyzes the temporal and spatial variation of extreme temperature indexes， including the number of high temperature days， strong hazard high temperature days， heat waves days and the maximum temperature under the Representative Concentration Pathway 2.6， 4.5， 6.0 and 8.5 during the year from 2011 to 2099. Results show that： 1) as the increase of emission concentration the four high temperature index value are elevated， in which RCP8.5 scenario changed most. 2) From the near (2011－2040)， the mid (2041－2070) to long term (2071－2099)， the values of high temperature various are increased， and the values in the RCP2.6 and RCP4.5 increase higher in the mid period than other two terms， while in the RCP6.0 and RCP8.5 the values increase highest in the long term. 3) The increment of the four various values is great difference in different regions under four scenarios concentrations. The number of high temperature days and heatwave days has highest increment in the southeast， the next turn is the middle and lower reaches of the Yangtze River， the North， Northwest， Southwest and Northeast of China， while the strong hazard high temperature days and the maximum temperature are the highest increments in the middle and lower reaches of the Yangtze River， and the next turn is the northwest， the North， the southeast， the southwest and the northeast.
徐新创,闫军辉,刘光旭,钟学斌. CMIP5不同典型浓度情景下中国极端高温的时空变化[J]. 华中师范大学学报(自然科学版), 2017, 51(4): 548-554.
XU Xinchuang,YAN Junhui,LIU Guangxu,ZHONG Xuebin. Temporal and spatial variations of extremely high temperature in China under different emission scenarios of CMIP5. journal1, 2017, 51(4): 548-554.
2017, Vol. 51 
