长江三角洲城市带扩展对区域温度变化的影响(英文)

编号 zgly0001586662

文献类型 期刊论文

文献题名 长江三角洲城市带扩展对区域温度变化的影响(英文)

作者 杜银  谢志清  曾燕  施雅风  武金岗 

作者单位 DepartmentofAtmosphericSciencesNanjingUniversity  JiangsuInstituteofMeteorologicalSciences  NanjingInstituteofGeographyandLimnologyCAS  DepartmentofAtmosphericSciencesNanjingUniversity  Nanjing210093China  Nanjing210008China  Nanji 

母体文献 Journal of Geographical Sciences 

年卷期 2007年04期

年份 2007 

分类号 P463.3  P423.3 

关键词 YangtzeRiverDelta  urbanheatisland  megacity  urbanizationprocess 

文摘内容 Based on non-radiance-calibrated DMSP/OLS nighttime light imagery from 1992 to 2003, urban land area statistical data, meteorological data and land surface temperature data retrieved by MODIS and NOAA/AVHRR data, the influence of urbanization on regional cli- matic trend of temperature in the Yangtze River Delta (YRD) was analyzed. Conclusions are as follows: 1) There is a significant urbanization process from 1992 to 2003 in the YRD. Four city clusters of Nanjing–Zhenjiang–Yangzhou, Suzhou–Wuxi–Changzhou, Shanghai and Hangzhou Bay form a zigzag city belt. The increase rate of annual mean air temperature in city-belt is 0.28–0.44℃/10a from 1991 to 2005, which is far larger than that of non-city-belt. 2) The urban heat island (UHI) effect on regional mean air temperature in different seasons is summer>autumn>spring>winter. 3) The UHI intensity and the urban total population logarithm are creditably correlated. 4) The UHI effect made the regional annual mean air temperature increased 0.072℃ from 1961 to 2005, of which 0.047℃ from 1991 to 2005, and the annual maximum air temperature increased 0.162℃, of which 0.083℃ from 1991 to 2005. All these indicating that the urban expansion in the YRD from 1991 to 2005 may be regarded as a serious climate signal.