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1/4 to 1/3 of observed warming trends in China from 1980 to 2015 are attributed to land use changes

Climatic change, 2021-02, Vol.164 (3-4), Article 59 [Peer Reviewed Journal]

The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature 2021 ;The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature 2021. ;ISSN: 0165-0009 ;EISSN: 1573-1480 ;DOI: 10.1007/s10584-021-03045-9

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  • Title:
    1/4 to 1/3 of observed warming trends in China from 1980 to 2015 are attributed to land use changes
  • Author: Shen, Pengke ; Zhao, Shuqing
  • Subjects: Atmospheric Sciences ; Climate ; Climate change ; Climate Change/Climate Change Impacts ; Climate effects ; Earth and Environmental Science ; Earth Sciences ; Earth surface ; Global warming ; Heterogeneity ; Land use ; Local climates ; Minimum temperatures ; Plant cover ; Rivers ; Spatial distribution ; Temperature ; Temperature changes ; Trends ; Urbanization ; Vegetation cover ; Weather stations
  • Is Part Of: Climatic change, 2021-02, Vol.164 (3-4), Article 59
  • Description: Changes in land use, especially urbanization, alter the biophysical properties of Earth’s surface, which in turn affects local climate and even contributes to global warming. The observation minus reanalysis (OMR) approach has been widely applied to isolate the signal of surface forcing from observed temperature changes (which reflect all the sources of climate forcings, including surface effects), but bias in warming trends induced by surface change and estimation uncertainties still remain. Using the ensemble mean of eight temperature reanalysis datasets as background climate, along with in situ observations from 2353 meteorological stations, here we analyze the warming effects of land use changes in China between 1980 and 2015. Results show that OMR trends from land use changes collectively reached +0.100, +0.098, and +0.146 °C/decade for annual mean, maximum, and minimum temperature, contributing approximately 1/4 to 1/3 of overall observed warming trends, and stronger contributions were observed in the three largest urban agglomerations (i.e., Jing-Jin-Ji, the Yangtze River Delta, and the Pearl River Delta). The spatial distribution of OMR trends shows a great deal of heterogeneity that is closely related to impervious surface (positively) and vegetation cover (negatively). Warming trends induced by land use changes (including urbanization) present evident diurnal asymmetry (stronger for minimum than maximum) and vary with season (greater in winter/spring than in summer/autumn) and generally increase over time. Our results highlight that observed warming trends in China were likely influenced substantially by land use changes, especially in highly urbanized areas.
  • Publisher: Dordrecht: Springer Netherlands
  • Language: English
  • Identifier: ISSN: 0165-0009
    EISSN: 1573-1480
    DOI: 10.1007/s10584-021-03045-9
  • Source: AUTh Library subscriptions: ProQuest Central
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