The Total Carbon Column Observing Network site description for Lauder, New Zealand

oleh: D. F. Pollard, V. Sherlock, J. Robinson, N. M. Deutscher, B. Connor, H. Shiona

Format: Article
Diterbitkan: Copernicus Publications 2017-12-01

Deskripsi

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. <br><br> 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 CO<sub>2</sub>. Since measurements using the IFS 125HR began, the SD about the hourly mean has been better than 0.1 % for 96.81 % of CO<sub>2</sub> column retrievals. <br><br> 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 CO<sub>2</sub>. <br><br> The Lauder TCCON time series of retrieved dry-air mole fractions of CO<sub>2</sub>, CH<sub>4</sub>, N<sub>2</sub>O, HF, H<sub>2</sub>O, HDO and CO are available from the TCCON data archive. <br><br> The DOIs are<br><br><a href="https://doi.org/10.14291/tccon.ggg2014.lauder01.R0/1149293" target="_blank">https://doi.org/10.14291/tccon.ggg2014.lauder01.R0/1149293</a> for the IFS 120HR data<br><br><a href="https://doi.org/10.14291/tccon.ggg2014.lauder02.R0/1149298" target="_blank">https://doi.org/10.14291/tccon.ggg2014.lauder02.R0/1149298</a> for the IFS 125HR data.