Alkenes in the Arctic boundary layer at Alert, Nunavut, Canada

Jan W. Bottenheim; Hacene Boudries; Peter C. Brickell; Elliot Atlas

doi:10.1016/S1352-2310(02)00113-9

Alkenes in the Arctic boundary layer at Alert, Nunavut, Canada

Jan W. Bottenheim, Hacene Boudries, Peter C. Brickell, Elliot Atlas

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Measurements of ethene and other non-methane hydrocarbons are reported from intensive measurements campaigns in spring 1998 and 2000. It is argued that the observed levels and the scatter in the data records that have been seen before, are real and not due to canister or other sampling related artifacts. It is then shown that these observations imply that there are local sources for alkenes in the Arctic. Gradient and flux measurements are reported that suggest that this source is in the snow-pack. The flux of ethene out of the snow-pack is estimated to be of the order of 1×10⁷moleculescm^-2s¹ and may be photochemically induced. While small, it is shown that this rate could explain a significant fraction of the observed ethene levels during a typical O₃ depletion episode at Alert. Crown

Original language	English (US)
Pages (from-to)	2585-2594
Number of pages	10
Journal	Atmospheric Environment
Volume	36
Issue number	15-16
DOIs	https://doi.org/10.1016/S1352-2310(02)00113-9
State	Published - 2002
Externally published	Yes

Keywords

ALERT2000
Ethene
NMHCs
Snow chemistry

ASJC Scopus subject areas

Environmental Science(all)
Atmospheric Science

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title = "Alkenes in the Arctic boundary layer at Alert, Nunavut, Canada",

abstract = "Measurements of ethene and other non-methane hydrocarbons are reported from intensive measurements campaigns in spring 1998 and 2000. It is argued that the observed levels and the scatter in the data records that have been seen before, are real and not due to canister or other sampling related artifacts. It is then shown that these observations imply that there are local sources for alkenes in the Arctic. Gradient and flux measurements are reported that suggest that this source is in the snow-pack. The flux of ethene out of the snow-pack is estimated to be of the order of 1×107moleculescm-2s1 and may be photochemically induced. While small, it is shown that this rate could explain a significant fraction of the observed ethene levels during a typical O3 depletion episode at Alert. Crown",

keywords = "ALERT2000, Ethene, NMHCs, Snow chemistry",

author = "Bottenheim, {Jan W.} and Hacene Boudries and Brickell, {Peter C.} and Elliot Atlas",

note = "Funding Information: We thank Alan Gallant for his tireless logistical support for these experiments and Verity Stroud for technical support in the gas chromatographic analysis at NCAR. The NCAR contribution was supported by the National Science Foundation. ",

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doi = "10.1016/S1352-2310(02)00113-9",

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AU - Bottenheim, Jan W.

AU - Boudries, Hacene

AU - Brickell, Peter C.

AU - Atlas, Elliot

N1 - Funding Information: We thank Alan Gallant for his tireless logistical support for these experiments and Verity Stroud for technical support in the gas chromatographic analysis at NCAR. The NCAR contribution was supported by the National Science Foundation.

PY - 2002

Y1 - 2002

N2 - Measurements of ethene and other non-methane hydrocarbons are reported from intensive measurements campaigns in spring 1998 and 2000. It is argued that the observed levels and the scatter in the data records that have been seen before, are real and not due to canister or other sampling related artifacts. It is then shown that these observations imply that there are local sources for alkenes in the Arctic. Gradient and flux measurements are reported that suggest that this source is in the snow-pack. The flux of ethene out of the snow-pack is estimated to be of the order of 1×107moleculescm-2s1 and may be photochemically induced. While small, it is shown that this rate could explain a significant fraction of the observed ethene levels during a typical O3 depletion episode at Alert. Crown

AB - Measurements of ethene and other non-methane hydrocarbons are reported from intensive measurements campaigns in spring 1998 and 2000. It is argued that the observed levels and the scatter in the data records that have been seen before, are real and not due to canister or other sampling related artifacts. It is then shown that these observations imply that there are local sources for alkenes in the Arctic. Gradient and flux measurements are reported that suggest that this source is in the snow-pack. The flux of ethene out of the snow-pack is estimated to be of the order of 1×107moleculescm-2s1 and may be photochemically induced. While small, it is shown that this rate could explain a significant fraction of the observed ethene levels during a typical O3 depletion episode at Alert. Crown

KW - ALERT2000

KW - Ethene

KW - NMHCs

KW - Snow chemistry

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JO - Atmospheric Environment

JF - Atmospheric Environment

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ER -

Alkenes in the Arctic boundary layer at Alert, Nunavut, Canada

Abstract

Keywords

ASJC Scopus subject areas

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