2017
DOI: 10.5194/amt-2017-375
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Atmospheric CO2, CH4, and CO with CRDS technique at the Izaña Global GAW station: instrumental tests, developments and first measurement results

Abstract: Abstract. At the end of 2015, a CO2/CH4/CO Cavity Ring-Down Spectrometer (CRDS) was installed at the Izaña Global Atmosphere Watch station (Tenerife, Spain) to improve the Izaña Greenhouse gases GAW measurement programme, and to 10 guarantee the renewal of the instrumentation and the long-term maintenance of this programme. We present the results of the CRDS acceptance tests, the processing of raw data applied through novel numerical codes, and the response functions used.Also, the calibration results, the imp… Show more

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Cited by 3 publications
(4 citation statements)
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“…The values v amp,i and σ cl,i are oriented to the typical covariances of in situ observations made from the ground (e.g. González et al, 2016;Gomez-Pelaez et al, 2019), aircraft (e.g. Wofsy, 2011;Dyroff et al, 2015), or balloons (e.g.…”
Section: A Priori Covariances and Constraintsmentioning
confidence: 99%
“…The values v amp,i and σ cl,i are oriented to the typical covariances of in situ observations made from the ground (e.g. González et al, 2016;Gomez-Pelaez et al, 2019), aircraft (e.g. Wofsy, 2011;Dyroff et al, 2015), or balloons (e.g.…”
Section: A Priori Covariances and Constraintsmentioning
confidence: 99%
“…Waliguan (100.9°E, 36.3°N)) and three regional stations (Lin'an (119.7°E,30.3°N),Longfengshan (127.6°E,44.7°N),and Shangdianzi (117.2°E,40.7°N)) within China (Fang et al, 2014;Fang et al, 2015a;Fang et al, 2015b;Fang et al, 2016). Most GAW ground-based and tower-based stations use commercially available cavity ring-down spectroscopic (CRDS) instruments to achieve highprecision measurements of GHGs (Gomez-Pelaez et al, 2019). Furthermore, GAW also operates many airborne in situ monitoring instrumentations for atmospheric GHGs monitoring around the globe (Fig.…”
Section: History Of Ghgs Monitoring Around the Globementioning
confidence: 99%
“…In addition to the network-based routine observations, there are also many research-oriented GHGs campaigns around the globe, and these uncoordinated behaviors are too numerous to count accurately (Gerbig et al, 2003;Lin et al, 2006;Zellweger et al, 2016;Gomez-Pelaez et al, 2019;Liu et al, 2021a;Liu et al, 2021b).…”
Section: History Of Ghgs Monitoring Around the Globementioning
confidence: 99%
“…Moreover, it is easily influenced by the presence of other gases. Cavity-ring down spectroscopy (CRDS) and off-axis integrated cavity output spectroscopy (OA-ICOS) have also been increasingly applied for the continuous monitoring of atmospheric CO 2 , CH 4 , and H 2 O [ 8 , 9 , 10 , 11 , 12 , 13 ]. Although CRDS and OA-ICOS sensors have high sensitivity, they require relatively complex setups with laser frequency locking to longitudinal cavity resonances [ 14 ].…”
Section: Introductionmentioning
confidence: 99%