CDSD-296, The High-Precision Carbon Dioxide Spectroscopic Databank: Version for Atmospheric Applications

2007 ◽  
pp. 161-169 ◽  
Author(s):  
S. A. Tashkun ◽  
V. I. Perevalov ◽  
J. -L. Teffo
Keyword(s):  
Carbon Dioxide ◽  
High Precision

An improved CeO2 method for high-precision measurements of 17 O/16 O ratios for atmospheric carbon dioxide

2012 ◽  
Vol 26 (17) ◽  
pp. 1909-1922 ◽  
Author(s):  
Sasadhar Mahata ◽  
Sourandra K. Bhattacharya ◽  
Chung-Ho Wang ◽  
Mao-Chang Liang
Keyword(s):  
Carbon Dioxide ◽  
High Precision ◽  
Atmospheric Carbon Dioxide ◽  
Precision Measurements ◽  
Atmospheric Carbon

High-Precision Measurements of Condensation Coefficients. Results for Carbon Dioxide and Water Molecules

1972 ◽  
Vol 9 (1) ◽  
pp. 557-560 ◽  
Author(s):  
C. E. Bryson ◽  
V. Cazcarra ◽  
M. Chouarain ◽  
L. L. Levenson
Keyword(s):  
Carbon Dioxide ◽  
High Precision ◽  
Precision Measurements ◽  
Water Molecules

A high precision pulsed quantum cascade laser spectrometer for measurements of stable isotopes of carbon dioxide

2005 ◽  
Vol 52 (16) ◽  
pp. 2309-2321 ◽  
Author(s):  
J. B. McManus ◽  
D. D. Nelson ◽  
J. H. Shorter ◽  
R. Jimenez ◽  
S. Herndon ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Stable Isotopes ◽  
High Precision ◽  
Quantum Cascade Laser ◽  
Laser Spectrometer ◽  
Quantum Cascade

scholarly journals High Precision Carbon Dioxide and Oxygen Measurements Onboard of a Passenger Airplane

2006 ◽  
Vol 60 (11) ◽  
pp. 817-817
Author(s):  
Markus Leuenberger ◽  
Luca Valentino ◽  
Peter Nyfeler ◽  
Hans-peter Moret ◽  
Keyword(s):  
Carbon Dioxide ◽  
High Precision ◽  
Oxygen Measurements ◽  
Passenger Airplane

High-precision virial coefficients of argon and carbon dioxide from integration of speed of sound data in the pressure–temperature domain

2012 ◽  
Vol 110 (11-12) ◽  
pp. 1349-1358 ◽  
Author(s):  
Andrés F. Estrada-Alexanders ◽  
Orlando Guzmán ◽  
Brenda Pérez-Vidal
Keyword(s):  
Carbon Dioxide ◽  
High Precision ◽  
Speed Of Sound ◽  
Virial Coefficients ◽  
Sound Data

scholarly journals The Macquarie Island [LoFlo2G] high-precision continuous atmospheric carbon dioxide record

2018 ◽  
Author(s):  
Ann R. Stavert ◽  
Rachel M. Law ◽  
Marcel van der Schoot ◽  
Ray L. Langenfelds ◽  
Darren A. Spencer ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Southern Ocean ◽  
High Precision ◽  
New Record ◽  
Large Scale ◽  
Atmospheric Co2 ◽  
Spatial And Temporal Variability ◽  
Co2 Fluxes ◽  
Macquarie Island ◽  
Uncertainty Estimates

Abstract. The Southern Ocean (south of 30° S) is a key global scale sink of carbon dioxide (CO2). However, the isolated and inhospitable nature of this environment has restricted the number of oceanic and atmospheric CO2 measurements in this region. This has limited the scientific community’s ability to investigate trends and seasonal variability of the sink. Compared to regions further north, the near-absence of terrestrial CO2 exchange and strong large-scale zonal mixing demands unusual inter-site measurement precision to help distinguish the presence of mid-to-high latitude ocean exchange from large CO2 fluxes transported southwards in the atmosphere. Here we describe a continuous, in-situ, ultra-high-precision, Southern Ocean region CO2 record, which ran at Macquarie Island (54°37’ S, 158°52’ E) from 2005–2016 using a LoFlo2 instrument, along with its calibration strategy, uncertainty analysis and baseline filtering procedures. Uncertainty estimates calculated for minute and hourly frequency data range from 0.01 to 0.05 μmol mol−1 depending on averaging period and application. Higher precisions are applicable when comparing MQA LoFlo measurements to those of similar instruments on the same internal laboratory calibration scale and more uncertain values are applicable when comparing to other networks. Baseline selection is designed to remove measurements that are influenced by local, Macquarie Island, CO2 sources, with effective removal achieved using a within-minute CO2 standard deviation metric. Additionally, measurements that are influenced by CO2 fluxes from Australia or other southern hemisphere land masses are effectively removed using model-simulated radon concentration. A comparison with flask records of atmospheric CO2 at Macquarie Island highlights the limitation of the flask record (due to corrections for storage time and limited temporal coverage) when compared to the new high-precision, continuous record; the new record shows much less noisy seasonal variations than the flask record. As such this new record is ideal for improving our understanding of the spatial and temporal variability of the Southern Ocean CO2 flux particularly when combined with data from similar instruments at other Southern Hemispheric locations.

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