Journal cover Journal topic
Earth System Science Data The Data Publishing Journal
Earth Syst. Sci. Data, 9, 977-992, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
07 Dec 2017
The Total Carbon Column Observing Network site description for Lauder, New Zealand
David F. Pollard1, Vanessa Sherlock1, John Robinson1, Nicholas M. Deutscher2, Brian Connor3, and Hisako Shiona1 1National Institute of Water and Atmospheric Research Ltd (NIWA), Lauder, New Zealand
2School of Chemistry, University of Wollongong, Northfields Ave, Wollongong, NSW, 2522, Australia
3BC Consulting Limited, Martinborough, New Zealand
Abstract. In this paper we describe the retrievals of atmospheric trace gases from near-infrared, high-resolution solar absorption spectroscopy measurements at the Lauder atmospheric research station in New Zealand and submitted to the Total Carbon Column Observing Network (TCCON) archive.

The Lauder site (45.034° S, 169.68° E, 370 m a.s.l.) is located within a sparsely populated region of the South Island of New Zealand and is sheltered from the prevailing wind direction by the Southern Alps, which gives the site a high number of clear-sky days and an air mass that is largely unmodified by regional anthropogenic sources. The Lauder TCCON archive consists of data from two instruments: a Bruker IFS 120HR from June 2004 to February 2010 and a Bruker IFS 125HR from February 2010 to present. The bias between the two instruments is assessed to be 0.068 % for CO2. Since measurements using the IFS 125HR began, the SD about the hourly mean has been better than 0.1 % for 96.81 % of CO2 column retrievals.

The retrievals have been calibrated against in situ airborne measurements to correct for biases and provide traceability to the World Meteorological Organization (WMO) scales with an accuracy of 0.1 % for CO2.

The Lauder TCCON time series of retrieved dry-air mole fractions of CO2, CH4, N2O, HF, H2O, HDO and CO are available from the TCCON data archive.

The DOIs are for the IFS 120HR data for the IFS 125HR data.

Citation: Pollard, D. F., Sherlock, V., Robinson, J., Deutscher, N. M., Connor, B., and Shiona, H.: The Total Carbon Column Observing Network site description for Lauder, New Zealand, Earth Syst. Sci. Data, 9, 977-992,, 2017.