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首页> 外文期刊>Environmental Science & Technology >Spatial and Temporal Patterns in Black Carbon Deposition to Dated Fennoscandian Arctic Lake Sediments from 1830 to 2010
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Spatial and Temporal Patterns in Black Carbon Deposition to Dated Fennoscandian Arctic Lake Sediments from 1830 to 2010

机译：1830年至2010年过时的芬诺斯堪的亚北极湖沉积物中黑碳沉积的时空格局

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摘要

Black carbon (BC) is fine paniculate matter produced by the incomplete combustion of biomass and fossil fuels. It has a strong climate warming effect that is amplified in the Arctic. Long-term trends of BC play an important role in assessing the climatic effects of BC and in model validation. However, few historical BC records exist from high latitudes. We present five lake-sediment soot-BC (SBC) records from the Fennoscandian Arctic and compare them with records of spheroidal carbonaceous fly-ash particles (SCPs), another BC component, for ca. the last 120 years. The records show spatial and temporal variation in SBC fluxes. Two northernmost lakes indicate declining values from 1960 to the present, which is consistent with modeled BC deposition and atmospheric measurements in the area. However, two lakes located closer to the Kola Peninsula (Russia) have recorded increasing SBC fluxes from 1970 to the present, which is likely caused by regional industrial emissions. The increasing trend is in agreement with a Svalbard ice-core-BC record. The results suggest that BC deposition in parts of the European Arctic may have increased over the last few decades, and further studies are needed to clarify the spatial extent of the increasing BC values and to ascertain the climatic implications.
机译：炭黑（BC）是由于生物质和化石燃料不完全燃烧而产生的细颗粒物质。它具有很强的气候变暖作用，在北极被放大。 BC的长期趋势在评估BC的气候影响和模型验证中起着重要作用。但是，高纬度地区几乎没有BC历史记录。我们提供了五份来自芬诺斯堪迪亚北极地区的湖泊沉积物烟灰BC（SBC）记录，并将它们与球状碳质粉煤灰颗粒（SCP）的记录进行了比较，后者是另一种BC成分，大约为。最近的120年。记录显示了SBC通量的时空变化。最北端的两个湖泊表示从1960年到现在的下降值，这与该地区的模拟BC沉积和大气测量值一致。然而，从1970年到现在，靠近科拉半岛（俄罗斯）的两个湖泊记录的SBC通量增加，这很可能是由区域工业排放引起的。增长的趋势与斯瓦尔巴群岛冰芯-卑诗省的记录一致。结果表明，在过去的几十年中，欧洲北极地区部分地区的BC沉积量可能有所增加，需要进一步研究以阐明BC值增加的空间范围并确定气候影响。

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  • 来源
    《Environmental Science & Technology》 |2015年第24期|13954-13963|共10页
  • 作者

    Meri M. Ruppel; OErjan Gustafsson; Neil L. Rose; Antto Pesonen; Handong Yang; Jan Weckstroem; Vesa Palonen; Markku J. Oinonen; Atte Korhola;

  • 作者单位

    Department of Environmental Sciences, University of Helsinki, 00790 Helsinki, Finland;

    Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, 106 91 Stockholm, Sweden,Bolin Centre for Climate Research, Stockholm University, 106 91 Stockholm, Sweden;

    Environmental Change Research Centre, Department of Geography, University College London, London, WC1E 6BT United Kingdom;

    Laboratory of Chronology, Finnish Museum of Natural History - LUOMUS, 00560 Helsinki, Finland;

    Environmental Change Research Centre, Department of Geography, University College London, London, WC1E 6BT United Kingdom;

    Department of Environmental Sciences, University of Helsinki, 00790 Helsinki, Finland;

    Department of Physics, University of Helsinki, 00560 Helsinki, Finland;

    Laboratory of Chronology, Finnish Museum of Natural History - LUOMUS, 00560 Helsinki, Finland;

    Department of Environmental Sciences, University of Helsinki, 00790 Helsinki, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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