Citation:

PANGAEA.944291

Name: Methane dry air mole fractions measured during MOSAiC 2019/2020 (merged dataset)
Published: 2022-05-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: central Arctic Ocean; Methane concentration; MOSAiC20192020; MOSAiC_ATMOS; Polarstern

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Abstract:

This dataset contains hourly-averaged methane dry air mole fractions measured during the year-long Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition from October 2019 to September 2020. This is a merged dataset that combines cross-evaluated measurements performed in the University of Colorado (CU) and Swiss containers on Research Vessel Polarstern, along with cross-evaluated measurements performed on sea ice at Met City, and discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory (GML). The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of the Research Vessel Polarstern, the methane dry air mole fraction in nmol/mol, and the sampling location.

Keyword(s):

central Arctic Ocean; Methane concentration; MOSAiC20192020; MOSAiC_ATMOS; Polarstern

Related to:

Angot, Hélène; Blomquist, Byron; Howard, Dean; Archer, Stephen; Bariteau, Ludovic; Beck, Ivo; Boyer, Matthew; Crotwell, Molly; Helmig, Detlev; Hueber, Jacques; Jacobi, Hans-Werner; Jokinen, Tuija; Kulmala, Markku; Lan, Xin; Laurila, Tiia; Madronich, Monica; Neff, Donald; Petäjä, Tuukka; Posman, Kevin; Quéléver, Lauriane; Shupe, Matthew D; Vimont, Isaac; Schmale, Julia (2022): Year-round trace gas measurements in the central Arctic during the MOSAiC expedition. Scientific Data, 9(1), 723, https://doi.org/10.1038/s41597-022-01769-6

Source:

Angot, Hélène; Beck, Ivo; Jokinen, Tuija; Laurila, Tiia; Quéléver, Lauriane; Schmale, Julia (2022): Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020. PANGAEA, https://doi.org/10.1594/PANGAEA.944258

Blomquist, Byron; Angot, Hélène; Archer, Stephen; Bariteau, Ludovic; Howard, Dean; Jacobi, Hans-Werner; Posman, Kevin (2022): Minute-averaged methane dry air mole fractions measured at Met City during the 2019-2020 MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition. NSF Arctic Data Center, https://doi.org/10.18739/A20G3H05R

Blomquist, Byron; Angot, Hélène; Archer, Stephen; Bariteau, Ludovic; Howard, Dean; Jacobi, Hans-Werner; Posman, Kevin (2022): Minute-averaged methane dry air mole fractions measured in the University of Colorado container during the 2019-2020 MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition. NSF Arctic Data Center, https://doi.org/10.18739/A2GF0MX7X

Dlugokencky, Edward J; Lan, Xin; Michel, S; Petron, G; Vimont, I; Crotwell, Molly; Madronich, Monica; Crotwell, Andy; Neff, D; Wolter, S; Moglia, E; Mund, John (2022): NOAA GML & INSTAAR SIL measurements of Greenhouse Gases and Related Tracers from the MOSAiC project. NOAA Global Monitoring Laboratory, & University Of Colorado Institute Of Arctic And Alpine Research (INSTAAR); Version 2022.05.23, https://doi.org/10.25925/AYBV-YZ43

Haas, Christian (2020): Master track of POLARSTERN cruise PS122/2 in 1 sec resolution (zipped, 36.7 MB). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.924672

Kanzow, Torsten (2020): Master track of POLARSTERN cruise PS122/3 in 1 sec resolution (zipped, 52 MB). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.924678

Rex, Markus (2020): Master track of POLARSTERN cruise PS122/1 in 1 sec resolution (zipped, 43.3 MB). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.924669

Rex, Markus (2021): Master track of POLARSTERN cruise PS122/4 in 1 sec resolution (zipped, 36 MB). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.926830

Rex, Markus (2021): Master track of POLARSTERN cruise PS122/5 in 1 sec resolution (zipped, 34 MB). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.926911

Project(s):

Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)

Funding:

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC

National Science Foundation (NSF), grant/award no. 1807496 : Collaborative Research: Surface Exchange of Climate-Active Trace Gases in a Sea Ice Environment During MOSAiC

Swiss National Science Foundation (SNF), grant/award no. 188478 : Measurement-Based understanding of the aeRosol budget in the Arctic and its Climate Effects (MBRACE)

Swiss Polar Institute (SPI), grant/award no. DIRCR-2018-004

Coverage:

Median Latitude: 85.172250 * Median Longitude: 58.420460 * South-bound Latitude: 78.129978 * West-bound Longitude: -145.021823 * North-bound Latitude: 89.999552 * East-bound Longitude: 147.669059

Date/Time Start: 2019-10-07T06:00:00 * Date/Time End: 2020-09-30T23:00:00

Minimum Elevation: -4413.0 m * Maximum Elevation: -214.0 m

Event(s):

PS122/1_1-70 * Latitude Start: 84.860310 * Longitude Start: 135.117890 * Latitude End: 86.593190 * Longitude End: 119.241500 * Date/Time Start: 2019-10-13T02:00:00 * Date/Time End: 2019-12-13T09:04:45 * Elevation: -4270.1 m * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Cavity ring-down greenhouse gas flux analyzer (CRDGFA)

PS122/1_1-75 * Latitude Start: 82.063496 * Longitude Start: 119.285024 * Latitude End: 86.593190 * Longitude End: 119.241500 * Date/Time Start: 2019-09-26T20:00:00 * Date/Time End: 2019-12-13T09:04:45 * Elevation: -4187.4 m * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: (TGM)

PS122/1_1-299 * Latitude: 86.094717 * Longitude: 118.129865 * Date/Time: 2019-12-04T06:00:00 * Sensor URI: sensor.awi.de * Campaign: (MOSAiC20192020) * Basis: * Method/Device: Flux tower (FLUX_TOWER)

Comment:

This merged dataset was created using the following datasets: Blomquist et al. (in review, a, b), Angot et al (in review), Dlugokencky et al. (2021).

We used 1 sec time resolution positional data from the following datasets: PS122/1: Rex, M (2020), PS122/2: Haas, C (2020), PS122/3: Kanzow, T (2020), PS122/4: Rex, M (2021a), PS122/5: Rex, M (2021b)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	DATE/TIME	Date/Time		Schmale, Julia	Geocode – UTC
2	LATITUDE	Latitude		Schmale, Julia	Geocode
3	LONGITUDE	Longitude		Schmale, Julia	Geocode
4	Methane, dry-air mole fraction	CH4	nmol/mol	Schmale, Julia	Merged
5	Location	Location		Schmale, Julia	sampling location

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)

Size:

16170 data points

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