ASSESSMENT OF URBANIZATION EFFECTS IN TIME-SERIES OF SURFACE AIR-TEMPERATURE OVER LAND
ASSESSMENT OF URBANIZATION EFFECTS IN TIME-SERIES OF SURFACE AIR-TEMPERATURE OVER LAND
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DOI：
10.1038/347169a0
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发表时间：
1990-09-13
期刊：
影响因子：
64.8
通讯作者：
KARL, TR
中科院分区：
文献类型：
--
作者：
JONES, PD;GROISMAN, PY;KARL, TR
过去100年陆地半球平均温度的记录为全球变暖的争论提供了重要的资料1 - 4。尽管在一些半球温度汇编中谨慎地使用了基本站的数据1,2,4 - 6，但仍有人建议7,8，在一个世纪的时间尺度上看到的0.5°C变暖的一部分可能与城市化影响有关，即由城市发展的影响引起的局部变暖。我们在这里研究了世界上三个地区的大量农村站温度数据：苏联的欧洲部分、澳大利亚东部和中国东部。当与美国相邻地区的类似分析相结合时，结果代表了北半球陆地面积的20%和南半球陆地面积的10%。结果表明，在两个最广泛使用的半球数据集1、2、4中，城市化的影响最多比一个世纪时间尺度上看到的变暖少一个数量级。
RECORDS of hemispheric average temperatures from land regions for the past 100 years provide crucial input to the debate over global warming1–4. Despite careful use of the basic station data in some of these compilations of hemispheric temperature1,2,4–6, there have been suggestions7,8that a proportion of the 0.5 °C warming seen on a century timescale may be related to urbanization influences—local warming caused by the effects of urban development. We examine here an extensive set of rural-station temperature data for three regions of the world: European parts of the Soviet Union, eastern Australia and eastern China. When combined with similar analyses for the contiguous United States9,10, the results are representative of 20% of the land area of the Northern Hemisphere and 10% of the Southern Hemisphere. The results show that the urbanization influence in two of the most widely used hemispheric data sets1,2,4is, at most, an order of magnitude less than the warming seen on a century timescale.