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Annual measurements of atmospheric methane concentrations and isotopic ratios from Arrival Heights, Ross Island

Entry ID: K087_1989_2012_NZ_1

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Summary

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 ...

Related URL

Link: GET DATA

Description: The data is publically available at the Global Atmospheric Watch, World Data Centre for Greenhouse Gases (WDCGG)

Geographic Coverage

(Click for Interactive Map)

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

Location Keywords

CONTINENT > ANTARCTICA

CONTINENT > ANTARCTICA > ARRIVAL HEIGHTS

GEOGRAPHIC REGION > POLAR

Science Keywords

ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE

ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

GROUND-BASED OBSERVATIONS

Instrument

GAS CHROMATOGRAPHS

GC-MS > Gas Chromatograph/Mass Spectrometry

Project

UNFCCC > United Nations Framework Convention on Climate Change

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

IN WORK

Data Center

Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand

Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: CAROLINE MACLAURIN Phone: (03) 358 0200 Fax: (03) 358 0211 Email: c.maclaurin at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch 8140 Country: New Zealand

Personnel

GORDON BRAILSFORD

Role: TECHNICAL CONTACT

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

Publications/References

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, ... Auckland, March 25-30, 1990.Gibson P. (ed) Auckland: Clean Air Society of Australia and New Zealand. 1990. pp.125-132 ISBN 0473008718

Lowe, D.C. Brenninkmeijer, C.A.M. Brailsford, G.W. Lassey, K.R. Gomez, A.J. Nisbet, E.G. Concentration and 13C records of atmospheric methane in New Zealand and Antarctica: evidence for changes in methane sources. Journal of geophysical research 99(D8): 16,913-16,925, 1994.

Brenninkmeijer, C.A. Lowe, D.C. Manning, M.R. Sparks, R.J. van Velthoven, P.F. The 13C, 14C and 18O isotopic composition of CO, CH4 and CO2 in the higher southern latitudes lower stratosphere. Journal of geophysical research 100(D12): 26,163-26,172, 1995.

Lassey, K.R. Lowe, D. Brailsford, G.W. Gomez, A.J. Brenninkmeijer, C.A.M. Manning, M.R. Nisbet, E.G. Atmospheric methane in the Southern Hemisphere: the recent decline in source strengths inferred from concentration and isotope data. in: Local climate change science, policy and mitigation strategies; proceedings of Air & Waste Management Association International Speciality Conference, April 1994, Phoenix, AZ.Mathai C.V. Stensland G. (eds) Phoenix: Air and Waste Management Association. 1994. pp.233-248

Brailsford, G.W., Lowe, D.C., Roberts, P.A., Bromley, A.M., Moss, R.C. and Ussler, W. 1995. Interannual variability of 13C in Atmospheric Methane in the Antarctic. EOS, Transactions American Geophysical Union (Abstracts Fall 1995 meeting paper A31D-11) 76(46): 100.

Manning, M.R. Pearman, G.I. Etheridge, D.M. Fraser, P.J. Lowe, D.C. Steele, L.P. Changing composition of the atmosphere. in: Greenhouse: coping with climate change.Bouma W.J. Pearman G.I. Manning M.R. (eds) Collingwood: CSIRO Australia. 1996. pp.3-26 ISBN 0643056882

Lowe, D.C. Manning, M.R. Brailsford, G.W. Bromley, A.M. 1991-1992 atmospheric methane anomaly: Southern Hemisphere 13C decrease and growth rate fluctuations. Geophysical research letters 24(8): 857-860, 1997.

Mak, J.E., Manning, M.R. and Lowe, D.C. 2000. Aircraft observations of δ13C of atmospheric methane over the Pacific in August 1991 and 1993: Evidence of an enrichment in 13CH4 in the Southern Hemisphere. Journal of Geophysical Research 105: 1329.

Lowe, D.C., Allan, W., Manning, M.R., Bromley, T., Brailsford, G., Ferretti, D., Gomes, A., Knobben, R., Martin, R., Mei,Z., Moss, R., Koshy, K. and Maata, M. 1999. Shipboard determinations of the distributions of 13C in atmospheric methane in the Pacific. Journal of Geophysical Research 104: 26, 125-126, 135.

Allan, W. Lowe, D.C. Gomez, A.J. Struthers, H. Brailsford, G.W. Interannual variation of 13C in tropospheric methane: implications for possible atomic chlorine sink in the marine boundary layer. Journal of geophysical research 110: D11306, 2005.

Brailsford, G.W. Interannual variability of 13C in atmospheric methane in the Antarctic. Eos 76(46): 100, 1995.

Creation and Review Dates

DIF Creation Date: 2009-04-22

Last DIF Revision Date: 2012-06-15

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