Knapp, Marvin; Kleinschek, Ralph; Butz, André (2020): Column-averaged dry-air mole fractions of CO2, CH4, and CO from direct sunlight measurements above the Pacific during the MORE-2 campaign 2019 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.917240
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Abstract:
Measurements of atmospheric column-averaged dry-air mole fractions of carbon dioxide (XCO2), methane (XCH4), and carbon monoxide (XCO) have been collected across the Pacific ocean during the Measuring Ocean REferences 2 (MORE-2) campaign in June 2019. We deployed a ship-going variant of the EM27/SUN Fourier Transform Spectrometer (FTS) on board the German research vessel 'Sonne' which, during MORE-2, crossed the Pacific ocean from Vancouver, Canada, to Singapore. Equipped with a custom-built fast solar tracker, the FTS operated in direct-sun view during the ship cruise reliably delivering solar absorption spectra in the shortwave infrared spectral range 4000 to 11000 1/cm. After filtering and bias correcting the dataset, we report on XCO2, XCH4, and XCO measurements for 19 days along a trajectory that largely aligns with 30° N of latitude between 140° W and 120° E of longitude. The dataset has been adjusted to the TCCON (Total Carbon Column Observing Network) station in Karlsruhe, Germany, before and after the MORE-2 campaign through side-by-side measurements. During the campaign the precision for hourly means is found 0.24 ppm, 1.1 ppb, and 0.75 ppb for XCO2, XCH4, and XCO, respectively.
Supplement to:
Knapp, Marvin; Kleinschek, Ralph; Hase, Frank; Agusti-Panareda, Anna; Inness, Antje; Barre, Jerome; Butz, André; Landgraf, Jochen; Borsdorff, Tobias (in prep.): Ship-borne measurements of XCO2, XCH4, and XCO above the Pacific Ocean and comparison to CAMS and S5P/TROPOMI. Earth System Science Data
Coverage:
Median Latitude: 27.969620 * Median Longitude: 163.485436 * South-bound Latitude: 19.900000 * West-bound Longitude: 119.956000 * North-bound Latitude: 33.920000 * East-bound Longitude: -141.735000
Date/Time Start: 2019-06-04T17:33:00 * Date/Time End: 2019-06-29T05:20:00
Event(s):
SO268/3_0_Underway-2 (MORE-2) * Latitude Start: 19.050000 * Longitude Start: -104.330000 * Latitude End: 1.264000 * Longitude End: 103.840000 * Date/Time Start: 2019-05-25T00:00:00 * Date/Time End: 2019-07-05T00:00:00 * Location: Pacific Oean * Campaign: SO268/3 * Basis: Sonne_2 * Method/Device: Underway atmosphere observatory (UWAOBS) * Comment: MORE-2 - Measuring Ocean REeferences (of aerosol, clouds and trace-gases for evaluations of satellite
retrievals and model simulations)
retrievals and model simulations)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Knapp, Marvin | Geocode | ||
| 2 | LONGITUDE | Longitude | Knapp, Marvin | Geocode | ||
| 3 | LATITUDE | Latitude | Knapp, Marvin | Geocode | ||
| 4 | Dry air column-averaged mixing ratio of carbon dioxide | XCO2 | ppmv | Knapp, Marvin | EM27/SUN - Fourier Transform Spectrometer | |
| 5 | Dry air column-averaged mixing ratio of carbon dioxide, error | XCO2 err | ± | Knapp, Marvin | EM27/SUN - Fourier Transform Spectrometer | |
| 6 | Dry air column-averaged mixing ratio of methane | XCH4 | ppmv | Knapp, Marvin | EM27/SUN - Fourier Transform Spectrometer | |
| 7 | Dry air column-averaged mixing ratio of carbon monoxide | XCO | ppbv | Knapp, Marvin | EM27/SUN - Fourier Transform Spectrometer | |
| 8 | Dry air column-averaged mixing ratio of carbon monoxide, error | XCO err | ± | Knapp, Marvin | EM27/SUN - Fourier Transform Spectrometer |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
164241 data points
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