Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Catena, Alexandra; Smith, Mackenzie: Emission Rate Estimates of Methane and Carbon Dioxide at Several Sectors in New York State in 2021 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979843 (dataset in review)

ShareShow MapGoogle Earth 12 2 2

Abstract:
Aircraft measurements of methane and carbon dioxide mixing ratios were carried out by Champion X at several facilities in New York State in 2021. This dataset includes the calculated emission rates and uncertainties from each of the sampled facilites. The emission rate data includes all estimated CH4 and CO2 emission rates calculated by Champion X using a mass balance approach. It also includes the number of laps, wind direction (deg) and speed (m/s), start and end time, lowest and highest altitude measured (m), surface fraction, mean radius of the loop around the facility (m), temperature (C), and latitude and longitude coordinates.
Measurements were made using a single-engine Mooney aircraft where ambient air was drawn in through the rearward-facing inlets mounted on the wing of the aircraft. In situ methane, carbon dioxide, and water vapor were recorded using a Picarro G2401 cavity ring down spectrometer at 1 Hz with calibrations done in-flight. Horizontal wind speed and direction are calculated following the method outlined in Conley et al. (2014), which combines pitot-static pressure airspeed measurement with GPS-calculated aircraft heading and ground speed. Meteorological parameters were measured using a Vaisala HMP60 probe and geographical coordinates recorded through a Hemisphere high-precision differential GPS. Further descriptions of the aircraft, analyzer precision and accuracy, and met data can be found elsewhere (Conley et al., 2017; Karion et al., 2015; Peischl et al., 2016; Ravikumar et al., 2024; Smith et al., 2015).
Keyword(s):
aircraft; carbon dioxide; Emissions; mass balance; Methane
References:
Conley, Stephen; Faloona, Ian; Lenschow, Donald H; Karion, Anna; Sweeney, Colm (2014): A Low-Cost System for Measuring Horizontal Winds from Single-Engine Aircraft. Journal of Atmospheric and Oceanic Technology, 31(6), 1312-1320, https://doi.org/10.1175/JTECH-D-13-00143.1
Conley, Stephen; Faloona, Ian; Mehrotra, Shobhit; Suard, Maxime; Lenschow, Donald H; Sweeney, Colm; Herndon, Scott; Schwietzke, Stefan; Pétron, Gabrielle; Pifer, Justin; Kort, Eric A; Schnell, Russell (2017): Application of Gauss's theorem to quantify localized surface emissions from airborne measurements of wind and trace gases. Atmospheric Measurement Techniques, 10(9), 3345-3358, https://doi.org/10.5194/amt-10-3345-2017
Crosson, E R (2008): A cavity ring-down analyzer for measuring atmospheric levels of methane, carbon dioxide, and water vapor. Applied Physics B-Lasers and Optics, 92(3), 403-408, https://doi.org/10.1007/s00340-008-3135-y
Karion, Anna; Sweeney, Colm; Kort, Eric A; Shepson, P B; Brewer, Alan; Cambaliza, Maria; Conley, Stephen A; Davis, Kent J; Deng, Aijun; Hardesty, Mike; Herndon, Scott C; Lauvaux, Thomas; Lavoie, Tegan; Lyon, David; Newberger, Timothy; Pétron, Gabrielle; Rella, Chris; Smith, Mackenzie; Wolter, S; Yacovitch, Tara I; Tans, Pieter P (2015): Aircraft-Based Estimate of Total Methane Emissions from the Barnett Shale Region. Environmental Science & Technology, 49(13), 8124-8131, https://doi.org/10.1021/acs.est.5b00217
Peischl, J; Karion, Anna; Sweeney, Colm; Kort, Eric A; Smith, M L; Brandt, A R; Yeskoo, T; Aikin, K C; Conley, Stephen A; Gvakharia, A; Trainer, M; Wolter, S; Ryerson, T B (2016): Quantifying atmospheric methane emissions from oil and natural gas production in the Bakken shale region of North Dakota. Journal of Geophysical Research: Atmospheres, 121(10), 6101-6111, https://doi.org/10.1002/2015JD024631
Ravikumar, Arvind; Li, Zhongju; Yang, Shuting; Smith, Mackenzie (preprint): Developing Measurement-Informed Methane Emissions Inventory Estimates at Midstream Compressor Stations. https://doi.org/10.26434/chemrxiv-2024-8jmtn
Coverage:
Median Latitude: 43.058752 * Median Longitude: -77.081448 * South-bound Latitude: 42.284000 * West-bound Longitude: -79.008000 * North-bound Latitude: 43.891000 * East-bound Longitude: -73.400000
Date/Time Start: 2021-06-15T16:39:47 * Date/Time End: 2021-12-07T20:41:20
Event(s):
NewYork_state * Latitude Start: 42.284000 * Longitude Start: -79.008000 * Latitude End: 43.891000 * Longitude End: -73.400000
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SiteSiteSmith, Mackenzie
2DATE/TIMEDate/TimeSmith, MackenzieGeocode – start
3DATE/TIMEDate/TimeSmith, MackenzieGeocode – end
4Methane, emissionCH4 emissionkg/hSmith, MackenzieCalculated
5Methane, emission, uncertaintyCH4 emission unc±Smith, MackenzieCalculated
6Carbon dioxide, emissionCO2 emissionkg/hSmith, MackenzieCalculated
7Carbon dioxide, emission, uncertaintyCO2 emission unc±Smith, MackenzieCalculated
8Number of lapsLaps#Smith, Mackenzie
9Wind directiondddegSmith, Mackenzie
10Wind speedffm/sSmith, Mackenzie
11Time in secondsTimesSmith, Mackenziestart, UTC
12Time in secondsTimesSmith, Mackenzieend, UTC
13Altitude, minimumAlt minmSmith, Mackenzie
14Altitude, maximumAlt maxmSmith, Mackenzie
15Surface fractionSurf fractSmith, Mackenzie
16RadiusRadiusmSmith, Mackenziemean radius of the loop
17Temperature, airT airKSmith, Mackenzie
18LATITUDELatitudeSmith, MackenzieGeocode
19LONGITUDELongitudeSmith, MackenzieGeocode
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
539 data points

Download Data (login required; moratorium until 2025-09-21)

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML