scholarly journals Summertime carbonaceous aerosols collected in the marine boundary layer of the Arctic Ocean

2007 ◽  
Vol 112 (D2) ◽  
Author(s):  
Zhouqing Xie ◽  
Joel D. Blum ◽  
Satoshi Utsunomiya ◽  
R. C. Ewing ◽  
Xinming Wang ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Arctic Ocean ◽  
Marine Boundary Layer ◽  
The Arctic ◽  
Carbonaceous Aerosols ◽  
The Arctic Ocean

Atmospheric HCH Concentrations over the Marine Boundary Layer from Shanghai, China to the Arctic Ocean: Role of Human Activity and Climate Change

2010 ◽  
Vol 44 (22) ◽  
pp. 8422-8428 ◽  
Author(s):  
Xiaoguo Wu ◽  
James C. W. Lam ◽  
Chonghuan Xia ◽  
Hui Kang ◽  
Liguang Sun ◽  
...  
Keyword(s):  
Climate Change ◽  
Boundary Layer ◽  
Arctic Ocean ◽  
Human Activity ◽  
Marine Boundary Layer ◽  
The Arctic ◽  
The Arctic Ocean

scholarly journals Summertime aerosol chemical components in the marine boundary layer of the Arctic Ocean

2006 ◽  
Vol 111 (D10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Zhouqing Xie ◽  
Liguang Sun ◽  
Joel D. Blum ◽  
Yuying Huang ◽  
Wei He
Keyword(s):  
Boundary Layer ◽  
Arctic Ocean ◽  
Marine Boundary Layer ◽  
The Arctic ◽  
Chemical Components ◽  
The Arctic Ocean

Observation of surface ozone in the marine boundary layer along a cruise through the Arctic Ocean: From offshore to remote

2016 ◽  
Vol 169 ◽  
pp. 191-198 ◽  
Author(s):  
Pengzhen He ◽  
Lingen Bian ◽  
Xiangdong Zheng ◽  
Juan Yu ◽  
Chen Sun ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Arctic Ocean ◽  
Marine Boundary Layer ◽  
Surface Ozone ◽  
The Arctic ◽  
The Arctic Ocean

scholarly journals Ozone in the Boundary Layer air over the Arctic Ocean – measurements during the TARA expedition

2009 ◽  
Vol 9 (2) ◽  
pp. 8561-8586
Author(s):  
J. W. Bottenheim ◽  
S. Netcheva ◽  
S. Morin ◽  
S. V. Nghiem
Keyword(s):  
Boundary Layer ◽  
Arctic Ocean ◽  
Ozone Depletion ◽  
Surface Ozone ◽  
The Arctic ◽  
Total Absence ◽  
Trajectory Calculations ◽  
The Arctic Ocean ◽  
Ocean Measurements ◽  
Siberian Coast

Abstract. A full year of measurements of surface ozone over the Arctic Ocean far removed from land is presented (81° N – 88° N latitude). The data were obtained during the drift of the French schooner TARA between September 2006 and January 2008, while frozen in the Arctic Ocean. The data confirm that long periods of virtually total absence of ozone occur in the spring (mid March to mid June) after Polar sunrise. At other times of the year ozone concentrations are comparable to other oceanic observations with winter mole fractions of ca. 30–40 nmol mol−1 and summer minima of ca. 20 nmol mol−1. Contrary to earlier observations from ozone sonde data obtained at Arctic coastal observatories, the ambient temperature was well above −20°C during most ODEs (ozone depletion episodes). Backwards trajectory calculations suggest that during these ODEs the air had previously been in contact with the frozen ocean surface for several days and originated largely from the Siberian coast where several large open flaw leads developed in the spring of 2007.

scholarly journals Bromine measurements in ozone depleted air over the Arctic Ocean

2010 ◽  
Vol 10 (2) ◽  
pp. 3827-3860 ◽  
Author(s):  
J. A. Neuman ◽  
J. B. Nowak ◽  
L. G. Huey ◽  
J. B. Burkholder ◽  
J. E. Dibb ◽  
...  
Keyword(s):  
Arctic Ocean ◽  
Ozone Depletion ◽  
Marine Boundary Layer ◽  
Temperature Inversion ◽  
The Arctic ◽  
Ionization Mass ◽  
The Arctic Ocean ◽  
Mist Chamber ◽  
Active Bromine

Abstract. In situ measurements of ozone, photochemically active bromine compounds, and other trace gases over the Arctic Ocean in April 2008 are used to examine the chemistry and geographical extent of ozone depletion in the arctic marine boundary layer (MBL). Data were obtained from the NOAA WP-3D aircraft during the Aerosol, Radiation, and Cloud Processes affecting Arctic Climate (ARCPAC) study and the NASA DC-8 aircraft during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) study. Fast (1 s) and sensitive (detection limits at the low pptv level) measurements of BrCl and BrO were obtained from three different chemical ionization mass spectrometer (CIMS) instruments, and soluble bromide was measured with a mist chamber. The CIMS instruments also detected Br2. Subsequent laboratory studies showed that HOBr rapidly converts to Br2 on the Teflon instrument inlets. This detected Br2 is identified as active bromine and represents a lower limit of the sum HOBr+Br2. The measured active bromine is shown to likely be HOBr during daytime flights in the arctic. In the MBL over the Arctic Ocean, soluble bromide and active bromine were consistently elevated and ozone was depleted. Ozone depletion and active bromine enhancement were confined to the MBL that was capped by a temperature inversion at 200–500 m altitude. In ozone-depleted air, BrO rarely exceeded 10 pptv and was always substantially lower than soluble bromide that was as high as 40 pptv. BrCl was rarely enhanced above the 2-pptv detection limit, either in the MBL, over Alaska, or in the arctic free troposphere.

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