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Annual measurements of atmospheric methane concentrations and isotopic ratios from Arrival Heights, Ross Island since November 1989
Entry ID: K087_1989_2008_NZ_1

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Abstract: The atmospheric trace gas, methane (CH4), affects the radiative heat balance of the earth. The sources of atmospheric methane are not well understood. Large air samples (1000-1400 litres) of methane are collected from a compressor system at Arrival Heights annually (since 1989) and samples are analysed for methane concentrations, the isotopic ratios of 14C/ 13C and 13C/12C and the characteristics and fluxes of sources and sinks are assessed. Sample collection is aimed at the clean sector of the sky from the West through North to East, throughout the year. Measurements of methane carbon isotopes and its concentration in the atmosphere in Antarctica will help to determine the geographic variation, transport and the type and distribution of the sources of methane from the northern hemisphere.
Related URL
Description: The data is publically available at the Global Atmospheric Watch, World Data Centre for Greenhouse Gases (WDCGG)

Description: NIWA's atmospheric homepage with links to ftp sites with data
Geographic Coverage
Spatial coordinates   
  N: -77.82   S: -77.82   E: 166.65   W: 166.65
Min Altitude: 0 Max Altitude: 200

Temporal Coverage
Start Date: 1989-11-01
start here with 1 in span in link Ancillary Description
Quality All of the data is held by NIWA Ltd., New Zealand and is available via the ftp site listed on this page. The data is also available via the Global Atmospheric Watch, World Data Centre for Greenhouse Gases (WDCGG). Please contact Dr Gordon Brailsford for more information.
Data Set Progress
Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand Supplemental Info
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand
Phone: +64 4 386 0300
Fax: +64 3 386 0574
Email: g.brailsford at niwa.co.nz
Contact Address:
National Institute of Water and Atmospheric Research Ltd. (NIWA)
PO BOX 14901
City: Wellington
Country: New Zealand
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Lowe, D.C., Brenninkmeijer, C.A.M., Manning, M.R., Typer, S.C., Dlugokencky, E. and Steele, P. 1989. Carbon Isotopic composition of Atmospheric Methane. Transaction American Geophysical Union 70(43): 1017.

Lowe, D.C. Manning, M.R. Brenninkmeijer, C.A.M. Lassey, K.R. Carbon isotopic composition of atmospheric methane. in: Proceedings of the 12th International Clean Air Conference, ... View entire text
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Creation and Review Dates
DIF Creation Date: 2009-04-22
Last DIF Revision Date: 2017-08-23

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