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Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime

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Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime. / Liu, Dantong; Zhao, Delong; Xie, Zhenzhen et al.
In: Environmental Research Letters, Vol. 14, No. 12, 124003, 18.11.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Liu, D, Zhao, D, Xie, Z, Yu, C, Chen, Y, Tian, P, Ding, S, Hu, K, Lowe, D, Liu, Q, Zhou, W, Wang, F, Sheng, J, Kong, S, Hu, D, Wang, Z & Ding, D 2019, 'Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime', Environmental Research Letters, vol. 14, no. 12, 124003. https://doi.org/10.1088/1748-9326/ab4872

APA

Liu, D., Zhao, D., Xie, Z., Yu, C., Chen, Y., Tian, P., Ding, S., Hu, K., Lowe, D., Liu, Q., Zhou, W., Wang, F., Sheng, J., Kong, S., Hu, D., Wang, Z., & Ding, D. (2019). Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime. Environmental Research Letters, 14(12), Article 124003. https://doi.org/10.1088/1748-9326/ab4872

Vancouver

Liu D, Zhao D, Xie Z, Yu C, Chen Y, Tian P et al. Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime. Environmental Research Letters. 2019 Nov 18;14(12):124003. Epub 2019 Sept 26. doi: 10.1088/1748-9326/ab4872

Author

Liu, Dantong ; Zhao, Delong ; Xie, Zhenzhen et al. / Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime. In: Environmental Research Letters. 2019 ; Vol. 14, No. 12.

Bibtex

@article{37017fa101a24238990e6f33d2800675,
title = "Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime",
abstract = "The fast development of a secondary aerosol layer was observed over megacities in eastern Asia during summertime. Within three hours, from midday to early afternoon, the contribution of secondary aerosols above the planetary boundary layer (PBL) increased by a factor of 3-5, and the coatings on the black carbon (BC) also increased and enhanced its absorption efficiency by 50%. This tended to result from the intensive actinic flux received above the PBL which promoted the photochemical reactions. The absorption of BC could be further amplified by the strong reflection of solar radiation over the cloud top across the PBL. This enhanced heating effect of BC introduced by combined processes (intensive solar radiation, secondary formation and cloud reflection) may considerably increase the temperature inversion above the PBL. This mechanism should be considered when evaluating the radiative impact of BC, especially for the polluted regions receiving strong solar radiation.",
author = "Dantong Liu and Delong Zhao and Zhenzhen Xie and Chenjie Yu and Ying Chen and Ping Tian and Shuo Ding and Kang Hu and Douglas Lowe and Quan Liu and Wei Zhou and Fei Wang and Jiujiang Sheng and Shaofei Kong and Dawei Hu and Zhenzhu Wang and Deping Ding",
year = "2019",
month = nov,
day = "18",
doi = "10.1088/1748-9326/ab4872",
language = "English",
volume = "14",
journal = "Environmental Research Letters",
issn = "1748-9326",
publisher = "IOP Publishing Ltd",
number = "12",

}

RIS

TY - JOUR

T1 - Enhanced heating rate of black carbon above planetary boundary layer over megacities in summertime

AU - Liu, Dantong

AU - Zhao, Delong

AU - Xie, Zhenzhen

AU - Yu, Chenjie

AU - Chen, Ying

AU - Tian, Ping

AU - Ding, Shuo

AU - Hu, Kang

AU - Lowe, Douglas

AU - Liu, Quan

AU - Zhou, Wei

AU - Wang, Fei

AU - Sheng, Jiujiang

AU - Kong, Shaofei

AU - Hu, Dawei

AU - Wang, Zhenzhu

AU - Ding, Deping

PY - 2019/11/18

Y1 - 2019/11/18

N2 - The fast development of a secondary aerosol layer was observed over megacities in eastern Asia during summertime. Within three hours, from midday to early afternoon, the contribution of secondary aerosols above the planetary boundary layer (PBL) increased by a factor of 3-5, and the coatings on the black carbon (BC) also increased and enhanced its absorption efficiency by 50%. This tended to result from the intensive actinic flux received above the PBL which promoted the photochemical reactions. The absorption of BC could be further amplified by the strong reflection of solar radiation over the cloud top across the PBL. This enhanced heating effect of BC introduced by combined processes (intensive solar radiation, secondary formation and cloud reflection) may considerably increase the temperature inversion above the PBL. This mechanism should be considered when evaluating the radiative impact of BC, especially for the polluted regions receiving strong solar radiation.

AB - The fast development of a secondary aerosol layer was observed over megacities in eastern Asia during summertime. Within three hours, from midday to early afternoon, the contribution of secondary aerosols above the planetary boundary layer (PBL) increased by a factor of 3-5, and the coatings on the black carbon (BC) also increased and enhanced its absorption efficiency by 50%. This tended to result from the intensive actinic flux received above the PBL which promoted the photochemical reactions. The absorption of BC could be further amplified by the strong reflection of solar radiation over the cloud top across the PBL. This enhanced heating effect of BC introduced by combined processes (intensive solar radiation, secondary formation and cloud reflection) may considerably increase the temperature inversion above the PBL. This mechanism should be considered when evaluating the radiative impact of BC, especially for the polluted regions receiving strong solar radiation.

U2 - 10.1088/1748-9326/ab4872

DO - 10.1088/1748-9326/ab4872

M3 - Journal article

VL - 14

JO - Environmental Research Letters

JF - Environmental Research Letters

SN - 1748-9326

IS - 12

M1 - 124003

ER -