DECOMMISSIONED – 24 Sept 2019
Latitude: 39.9201 N
Longitude: 86.0280 W
Castlegate Dr., Indianapolis, IN
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Elevation: 251 m ASL
Installation Date: 15 July 2013
Sampling Height: 39 m AGL
In-situ GHG Instrument: CKADS2025 (CO2/CO) (26 April 2017 – 24 Sept 2019)
CKADS2024 (CO2/CO) (Nov 2014 – 26 April 2017)
CADS10 (CO2) (July 2013 – Nov 2014)
NOAA Flasks (Nov 2014 – current)
| Reference Tank | CO2 (ppm) | CO (ppb) | CH4 (ppb) | Pressure (psi)/ Date |
| CAO6292 | 394.50 | 1350 July 2013; 1300 Sept 2013; 1250 Nov 2013; 1150 May 2014; 1050 Nov 2014; (tank removed) | ||
| CC336638 | 395.32 | 148.60 | 650 Nov 2014; 550 Apr 2015; 300 Sept 2015 (tank removed) | |
| CA08074 | 378.36 | 138.3** | 1809.1 | 1750 Oct 2015;1490 psi Sept 2016; 1450 psi March 2017; 1350 psi April 2017; 900 psi July 2017; low/empty Jan2018; not currently being sampled (tank removed) |
| LL120787 | 424.06 | 174.4 | 2025.1 | 1500 April 2018; 1400 May 2018; 500 Feb 2019; 275 Apr 2019; not currently being sampled (tank removed) |
| CB11320 | 425.07 | 149.4 | 1988.6 | 1400 Apr 2019 (WET) (tank removed) |
* measured 392.4 ppm at installation
** measured with 4 NOAA round-robin tanks
