CARVE atmospheric gas concentrations, airborne spectrometer, Alaska, 2012-2015

Budney, J.W; Chang, R.Y-W.; Commane, R.; Daube, B.C.; Dayalu, A.; Dinardo, S.J.; Gottlieb, E.W.; Karion, A.; Lindaas, J.O.W.; Miller, C.E.; Miller, J.B.; Miller, S.; Pender, M.; Pittman, J.V.; Samra, J.; Sweeney, C.; Wofsy, S.C.; Xiang, B.

This data set provides atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), ozone (O3), and water vapor (H2O) concentrations from airborne campaigns over the Alaskan and Canadian arctic for the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE). These data are merged and gap-filled outputs from two different cavity ring-down spectrometers (CRDS; Picarro Inc.) flown aboard the CARVE aircraft and are presented at 5-second intervals throughout each flight. Aircraft latitude, longitude, and altitude are also provided. Flight campaigns took place from 2012 to 2015 between the months of March and November to enable investigation of both seasonal and inter-annual variability in atmospheric gas content. The measurements included in this data set are crucial for understanding changes in Arctic carbon cycling and the potential threats posed by thawing of Arctic permafrost.

Citation

In order to use these data, you must cite this data set with the following citation:

Budney, J.W., R.Y-W. Chang, R. Commane, B.C. Daube, A. Dayalu, S.J. Dinardo, E.W. Gottlieb, A. Karion, J.O.W. Lindaas, C.E. Miller, J.B. Miller, S. Miller, M. Pender, J.V. Pittman, J. Samra, C. Sweeney, S.C. Wofsy, and B. Xiang. 2016. CARVE: L2 Merged Atmospheric CO2, CO, O3 and CH4 Concentrations, Alaska, 2012-2015. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1402

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy.

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Svæði Gildi
Identifier DOI: 10.3334/ORNLDAAC/1402
Project(s) CARVE
Institute Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
Heimild https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1402
Publication Date 2016-07-28
Útgáfa 1.0
Product Atmospheric CO2, CO, O3 and CH4 Concentrations
Sensor Picarro cavity ring-down spectrometer
Files
  1. carve_AtmosISGA_L2_Merge_2012_20160722.csv
  2. carve_AtmosISGA_L2_Merge_2013_20160722.csv
  3. carve_AtmosISGA_L2_Merge_2014_20160722.csv
Variables [Units]
  1. SOY: Seconds of year from midnight on Jan 1
  2. JD: Fractional Julian Day of year
  3. UTC: Seconds since the start of day (midnight)
  4. YYYYMMDD: Date (UTC time) [YYYYMMDD]
  5. Lat: Decimal degrees North reported by aircraft [decimal degrees]
  6. Long: Decimal degrees East reported by aircraft [decimal degrees]
  7. GPS_Alt: Aircraft altitude [meters]
  8. CO2.X: Merged CO2 product [ppm]
  9. CH4.X: Merged CH4 product [ppb]
  10. CO.X: Merged CO product [ppb]
  11. H2O.X: Merged H2O product [percent]
  12. O3.X: Merged O3 product [ppb]
  13. NOAA.CO2.ppm: CO2 data from NOAA Picarro instrument [ppm]
  14. NOAA.CH4.ppb: CH4 data from NOAA Picarro instrument [ppb]
  15. NOAA.CO.ppb: CO data from NOAA Picarro instrument [ppb]
  16. NOAA.CO2.QC: NOAA CO2 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  17. NOAA.CH4.QC: NOAA CH4 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  18. NOAA.CO.QC: NOAA CO quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  19. HU.CO2: CO2 data from Harvard Picarro instrument [ppm]
  20. HU.CH4: CH4 data from Harvard Picarro instrument [ppb]
  21. HU.CO: CO data from Harvard Picarro instrument [ppb]
  22. CO2.HU.flag: Harvard CO2 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  23. CH4.HU.flag: Harvard CH4 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.Harvard CH4 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  24. CO.HU.flag: Harvard CO quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  25. O3.ppb: JPL O3 data from DADS file [ppb]
  26. H2O.pct: Water vapor percentage from NOAA Picarro instrument [percent]
  27. H2O.QC : NOAA H20 quality flag. 0 = Valid data, 1 = Data out of calibration range, 2 = Cavity anomaly, 3 = System leak or calibration problem, Do not use.
  28. H2O.corr: H2O data corrected for pressure [percent]
  29. Tcorr: Processed air temperature [degrees C]
  30. Pcorr: Processed air pressure [mbar]
  31. AmbientPress.mb: Raw ambient air pressure [mbar]
Region Alaskan and Canadian Arctic
Spatial Reference
Spatial Resolution Point measurements
Spatial Coverage Latitude 60.21 to 71.50, Longitude -131.75 to -168.11
Temporal Coverage Flights took place during the growing season, 2012 - 2015 (approx. March – November)
Temporal Resolution 5 second intervals throughout flights.
Skráasnið CSV
Is Supplement To

Miller, S.M., C.E. Miller, R. Commane, R.Y.W. Chang, S.J. Dinardo, J.M. Henderson, A. Karion, J. Lindaas, J.R. Melton, J.B. Miller, C. Sweeney, S.C. Wofsy, and A.M. Michalak. 2016. A multiyear estimate of methane fluxes in Alaska from CARVE atmospheric observations. Global Biogeochemical Cycles. 30(10):1441-1453. https://doi.org/10.1002/2016GB005419
Related to

Randazzo, N.A., A.M. Michalak, C.E. Miller, S.M. Miller, Y.P. Shiga, and Y. Fang. 2021. Higher Autumn Temperatures Lead to Contrasting CO 2 Flux Responses in Boreal Forests Versus Tundra and Shrubland . Geophysical Research Letters. 48(18): https://doi.org/10.1029/2021GL093843

Hartery, S., R. Commane, J. Lindaas, C. Sweeney, J. Henderson, M. Mountain, N. Steiner, K. McDonald, S.J. Dinardo, C.E. Miller, S.C. Wofsy, and R.Y.W. Chang. 2018. Estimating regional-scale methane flux and budgets using CARVE aircraft measurements over Alaska. Atmospheric Chemistry and Physics. 18(1):185-202. https://doi.org/10.5194/acp-18-185-2018

Yurganov, L.N., I. Leifer, and S. Vadakkepuliyambatta. 2017. Evidences of accelerating the increase in the concentration of methane in the atmosphere after 2014: satellite data for the Arctic. Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa. 14(5):248-258. https://doi.org/10.21046/2070-7401-2017-14-5-248-258

Dataset extent