Articles | Volume 10, issue 7
Research article
06 Jul 2017
Research article |  | 06 Jul 2017

Background CO2 levels and error analysis from ground-based solar absorption IR measurements in central Mexico

Jorge L. Baylon, Wolfgang Stremme, Michel Grutter, Frank Hase, and Thomas Blumenstock


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jorge L. Baylon on behalf of the Authors (24 Mar 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (19 Apr 2017) by Hal Maring
RR by Paul O. Wennberg (08 May 2017)
ED: Publish subject to minor revisions (Editor review) (20 May 2017) by Hal Maring
AR by Jorge L. Baylon on behalf of the Authors (28 May 2017)  Author's response    Manuscript
ED: Publish as is (30 May 2017) by Hal Maring
Short summary
In this investigation we analyze two common optical configurations to retrieve CO2 total column amounts from solar absorption infrared spectra. The noise errors using either a KBr or CaF2 beam splitter, a main component of a Fourier transform infrared spectrometer, are quantified in order to assess the relative precisions of the measurements. A 3-year XCO2 time series at the high-altitude site of Altzomoni in central Mexico presents clear annual and diurnal cycles and a trend of +2.2 ppm yr-1.