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100 _a20170531a2017 k y0engy50 ba
101 0 _aeng
_deng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSiberian Arctic black carbon sources constrained by model and observation
_fP. Winiger [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aBlack carbon (BC) in haze and deposited on snow and ice can have strong effects on the radiative balance of the Arctic. There is a geographic bias in Arctic BC studies toward the Atlantic sector, with lack of observational constraints for the extensive Russian Siberian Arctic, spanning nearly half of the circum-Arctic. Here, 2 y of observations at Tiksi (East Siberian Arctic) establish a strong seasonality in both BC concentrations (8 ng·m-3 to 302 ng·m-3) and dual-isotope–constrained sources (19 to 73% contribution from biomass burning). Comparisons between observations and a dispersion model, coupled to an anthropogenic emissions inventory and a fire emissions inventory, give mixed results. In the European Arctic, this model has proven to simulate BC concentrations and source contributions well. However, the model is less successful in reproducing BC concentrations and sources for the Russian Arctic. Using a Bayesian approach, we show that, in contrast to earlier studies, contributions from gas flaring (6%), power plants (9%), and open fires (12%) are relatively small, with the major sources instead being domestic (35%) and transport (38%). The observation-based evaluation of reported emissions identifies errors in spatial allocation of BC sources in the inventory and highlights the importance of improving emission distribution and source attribution, to develop reliable mitigation strategies for efficient reduction of BC impact on the Russian Arctic, one of the fastest-warming regions on Earth.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tProceedings of the National Academy of Sciences of the United States of America
463 _tVol. 114, № 7
_v[P. 1054-1061]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aАрктика
610 1 _aрадиационный баланс
701 1 _aWiniger
_bP.
_gPatrik
701 1 _aAndersson
_bA.
_gAugust
701 1 _aEckhardt
_bS.
_gSabine
701 1 _aStohl
_bA.
_gAndreas
701 1 _aSemiletov
_bI. P.
_cgeographer
_cProfessor of Tomsk Polytechnic University, doctor of geographical Sciences
_f1955-
_gIgor Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\34220
701 1 _aDudarev
_bO. V.
_cgeologist
_cresearcher of Tomsk Polytechnic University, candidate of geological and mineralogical Sciences
_f1955-
_gOleg Viktorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\35379
701 1 _aCharkin
_bA.
_gAlexander
701 1 _aShakhova
_bN. E.
_cgeologist
_cProfessor of Tomsk Polytechnic University, doctor of geological-mineralogical Sciences
_f1959-
_gNataljya Evgenjevna
_2stltpush
_3(RuTPU)RU\TPU\pers\35374
701 1 _aKlimont
_bZ.
_gZbigniew
701 1 _aHeyes
_bC.
_gChris
701 1 _aGustafsson
_bO.
_gOrjan
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра геологии и разведки полезных ископаемых (ГРПИ)
_bМеждународная научно-образовательная лаборатория изучения углерода арктических морей (МНОЛ ИУАМ)
_h7398
_2stltpush
_3(RuTPU)RU\TPU\col\20711
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут неразрушающего контроля (ИНК)
_bМеждународная научно-образовательная лаборатория неразрушающего контроля (МНОЛ НК)
_h6776
_2stltpush
_3(RuTPU)RU\TPU\col\19961
801 2 _aRU
_b63413507
_c20170531
_gRCR
856 4 _uhttp://dx.doi.org/10.1073/pnas.1613401114
942 _cCF