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The abnormal change of air quality and air pollutants induced by the forest fire in Sumatra and Borneo in 2015

机译:2015年苏门答腊和婆罗洲森林火灾诱导的空气质量和空气污染物的异常变化

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摘要

We comprehensively integrated various remote sensing, modeling and meteorological datasets to assess and quantify the effects of Indonesia's forest fires in 2015 on the ambient atmosphere. When the forest fires occurred, the fire spots in Sumatra and Borneo increased sharply to 78,055 and fire radiative power (FRP) rose to 4.05 x 10(6) MW in September-October 2015. The Aerosol Optical Depth (AOD) and the retrieved concentration of PM2.5 around these two islands also peaked during this period. With the remote sensing data from 2016 and 2017 as the background, we found that the carbon monoxide (CO) anomalies along the equatorial Indian and Pacific Oceans (25 degrees S to 25 degrees N and 40 degrees E to 160 degrees E) reached 10.32 +/- 0.58 ML and 25.05 1.35 ML in September and October 2015, respectively. Meanwhile, the nitrogen dioxide (NO2) changes were not so obvious; the NO2 anomalies within Sumatra and Borneo were only 0.46 +/- 0.14 Kt and 0.49 +/- 0.17 Kt, respectively. All the four indicators (AOD, PM2 5 concentration, CO and NO2 anomalies) revealed that the ambient air quality in October 2015 was even worse than that in September. The precipitation anomaly (PA) of these two islands decreased to -1.89 mm/day in September 2015, which is assumed to be the main meteorological factor to induce the forest fires. During the 1997/1998 El Nino event, the PA decreased to -3.04 mm/day on October 1997 and temperature anomaly (TA) increased to 1.52 degrees C on March 1998, the variation of which is more significant than other two El Nino events in 1982/1983 and 2015/2016.
机译:我们全面综合综合各种遥感,建模和气象数据集,以评估和量化2015年印度尼西亚森林火灾对环境氛围的影响。当森林火灾发生时,苏门答腊和婆罗洲的火灾斑点急剧增加至78,055升,火灾辐射电力(FRP)升至2015年9月至10月4.05 x 10(6)兆瓦。气溶胶光学深度(AOD)和检索浓度在这两个岛屿周围的PM2.5也在此期间达到顶峰。通过2016年和2017年的遥感数据作为背景,我们发现赤道印度和太平洋的一氧化碳(CO)异常(25摄氏度为25度N和40°E至160度)达到10.32 + / - 2015年9月和10月的0.58毫升和25.05 1.35毫升。同时,二氧化氮(NO2)的变化不是那么明显;苏门答腊州和婆罗洲内的No2异常仅为0.46 +/- 0.14 kt和0.49 +/- 0.17 kt。所有四个指标(AOD,PM2 5浓度,CO和NO2异常)透露,2015年10月的环境空气质量甚至比9月更糟糕。这两个岛屿的降水异常(PA)在2015年9月下降至-1.89毫米/天,这被认为是诱导森林火灾的主要气象因素。在1997/1998 El Nino活动期间,1997年10月的PA减少到-3.04毫米/天,1998年3月温度异常(TA)增加到1.52摄氏度,其变异比其他两个EL Nino事件更重要1982/1983和2016年。

著录项

  • 来源
    《Atmospheric research》 |2020年第10期|105027.1-105027.13|共13页
  • 作者单位

    Natl Inst Environm Studies Ctr Global Environm Res Tsukuba Ibaraki 3058506 Japan;

    Hokkaido Univ Res Fac Agr Sapporo Hokkaido 0608589 Japan;

    Northeast Normal Univ Sch Geog Sci Changchun 130024 Peoples R China;

    Indonesian Oil Palm Res Inst Soil Sci & Agron Res Grp Medan 20158 North Sumatra Indonesia;

    Southwest Univ Coll Resources & Environm Chongqing 400716 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Aerosol; MODIS; MOPITT; OMI; Peatland; Total column;

    机译:气溶胶;mopitt;mopitt;omi;泥炭地;全柱;

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