elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

A campaign for investigating aerosol optical properties during winter hazes over Shijiazhuang, China

Qin, Kai and Wang, Luyao and Wu, Lixin and Xu, Jian and Rao, Lanlan and Letu, Husi and Shi, Tiewei and Wang, Runfeng (2017) A campaign for investigating aerosol optical properties during winter hazes over Shijiazhuang, China. Atmospheric Research, 198, pp. 113-122. Elsevier. DOI: 10.1016/j.atmosres.2017.08.018 ISSN 0169-8095

[img] PDF - Registered users only
3MB

Official URL: http://www.sciencedirect.com/science/article/pii/S0169809516306755

Abstract

As the capital of the most air-polluted Hebei province in China, Shijiazhuang has been suffering serious haze pollutions especially during wintertime. An integrated campaign for investigating aerosol optical properties under haze conditions over Shijiazhuang were carried out using a sunphotometer, an aethalometer and a lidar in the winter from late 2013 to early 2014. The results indicated that the haze episodes during the measurement period were severer and more frequent over Shijiazhuang than Beijing. Under heavy pollution conditions (PM2.5 > 150 μg/m3) over Shijiazhuang, fine-mode fractions of AOD500nm were larger than 0.80 with more dispersive angstrom exponent due to hygroscopic growth. The mean values of SSA over Shijiazhuang were smaller than those over Beijing both in this study and the severe haze episodes in January 2013, suggesting that there were more fine-mode absorbing particles over Shijiazhuang. More significant spectrally-dependence of imaginary part of refractive index over Shijiazhuang implies larger relative magnitude of brown carbon (BrC) as compared to Beijing. The black carbon (BC) measurement displayed extremely high records with a larger ratio of BC to PM2.5 (12.11% in average) comparing with other cities in China. The high carbonaceous aerosols (BC and BrC) should be attributed to large amounts of coal consumption. During the hazes with high BC concentrations, the daily maximal planetary boundary layer (PBL) heights were consistently lower than 500 m, implying the impacts of BC aerosols on the PBL development and hence enhance the surface haze pollution.

Item URL in elib:https://elib.dlr.de/113768/
Document Type:Article
Title:A campaign for investigating aerosol optical properties during winter hazes over Shijiazhuang, China
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Qin, KaiSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, ChinaUNSPECIFIED
Wang, LuyaoSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, ChinaUNSPECIFIED
Wu, LixinSchool of Geoscience and Info-Physics, Central South University, Changsha, ChinaUNSPECIFIED
Xu, Jianjian.xu (at) dlr.deUNSPECIFIED
Rao, LanlanSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, ChinaUNSPECIFIED
Letu, HusiInstitute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, ChinaUNSPECIFIED
Shi, TieweiSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, ChinaUNSPECIFIED
Wang, RunfengThe 2nd Institute of Surveying and Mapping of Hebei Province, Shijiazhuang, ChinaUNSPECIFIED
Date:1 December 2017
Journal or Publication Title:Atmospheric Research
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:198
DOI :10.1016/j.atmosres.2017.08.018
Page Range:pp. 113-122
Editors:
EditorsEmail
Sanchez, José LuisUniversidad de León, Spain
Publisher:Elsevier
ISSN:0169-8095
Status:Published
Keywords:Haze; Shijiazhuang; China; Aerosol optical property; Black carbon; Planetary boundary layer
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds, R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Xu, Dr.-Ing. Jian
Deposited On:07 Sep 2017 13:16
Last Modified:14 Sep 2017 12:12

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.