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Satellite-Based Detection and Characterization of Industrial Heat Sources in China

机译:基于卫星的中国工业热源检测与表征

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摘要

Despite their important contribution to the economic domain, active heat-releasing industrial plants have significant implications for human health and climate change. However, a spatially detailed dataset of various heat-releasing industrial sectors and large-scale characterization of heat emissions from industrial sources have not been reported yet. In this study, a dataset of heat-releasing industries was established using a national detection map of thermal anomalies produced by a novel and more accurate method employing daily nighttime visible infrared imaging radiometer suite thermal infrared images corresponding to 1 year. Subsequently, we quantified the dimensional features of heat radiation fluxes of China's industrial plants. A total of 12 114 industrial objects were structured in a two-level hierarchical dataset of heat-releasing industries, representing a magnitude of at least 1 order higher than the number enumerated in the state-of-the-art inventory of industrial heat sources across China. The satellite observations helped more completely characterize industrial heat plumes, which represent the industrial heat radiation fluxes with higher levels of densities that prevail in the central-eastern part of China having spatial clustering islands. Our results could be used to inform policy and environmental management in relation to meaningful dynamic industrial supervision, targeting extreme polluters and differentiated emission mitigation measurements.
机译:尽管它们对经济领域做出了重要贡献,但活跃的热力释放工厂对人类健康和气候变化具有重大影响。然而,尚未报道各种放热工业部门的空间详细数据集以及工业来源的热排放的大规模表征。在这项研究中,使用全国性热异常检测图建立了放热行业的数据集,该图由一种新颖且更准确的方法产生,该方法采用了每日夜间可见红外成像辐射计套件对应于1年的红外热图像。随后,我们量化了中国工厂的热辐射通量的尺寸特征。在两个级别的热释放行业分层数据集中构造了总共12 114个工业对象,其数量级比最新的工业热源清单中列举的数量高至少1个数量级。中国。卫星观测结果有助于更全面地表征工业热羽流,这些热羽流代表具有较高密度水平的工业热辐射通量,在中国中东部具有空间聚集岛的地区普遍存在。我们的结果可用于为与有意义的动态工业监管有关的政策和环境管理提供信息,针对极端污染者和有区别的减排指标。

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