Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020
This dataset contains minute-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. The measurements were performed in the Swiss container on the D-deck of R...
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Format: | Dataset |
Language: | English |
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PANGAEA
2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.944258 https://doi.org/10.1594/PANGAEA.944258 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.944258 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean Cavity ring down spectrometer G2401 Picarro Inc. Central Arctic Ocean DATE/TIME Event label Flag pollution LATITUDE LONGITUDE Methane dry-air mole fraction methane concentrations MOSAiC MOSAiC_ATMOS MOSAiC20192020 Multidisciplinary drifting Observatory for the Study of Arctic Climate North Greenland Sea Polarstern PS122/1 PS122/1_1-75 PS122/2 PS122/2_14-256 PS122/3 PS122/3_28-38 PS122/4 PS122/4_43-30 PS122/5 PS122/5_58-29 TGM Trace gas monitor |
spellingShingle |
Arctic Ocean Cavity ring down spectrometer G2401 Picarro Inc. Central Arctic Ocean DATE/TIME Event label Flag pollution LATITUDE LONGITUDE Methane dry-air mole fraction methane concentrations MOSAiC MOSAiC_ATMOS MOSAiC20192020 Multidisciplinary drifting Observatory for the Study of Arctic Climate North Greenland Sea Polarstern PS122/1 PS122/1_1-75 PS122/2 PS122/2_14-256 PS122/3 PS122/3_28-38 PS122/4 PS122/4_43-30 PS122/5 PS122/5_58-29 TGM Trace gas monitor Angot, Hélène Beck, Ivo Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Schmale, Julia Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
topic_facet |
Arctic Ocean Cavity ring down spectrometer G2401 Picarro Inc. Central Arctic Ocean DATE/TIME Event label Flag pollution LATITUDE LONGITUDE Methane dry-air mole fraction methane concentrations MOSAiC MOSAiC_ATMOS MOSAiC20192020 Multidisciplinary drifting Observatory for the Study of Arctic Climate North Greenland Sea Polarstern PS122/1 PS122/1_1-75 PS122/2 PS122/2_14-256 PS122/3 PS122/3_28-38 PS122/4 PS122/4_43-30 PS122/5 PS122/5_58-29 TGM Trace gas monitor |
description |
This dataset contains minute-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. The measurements were performed in the Swiss container on the D-deck of Research Vessel Polarstern. Data were collected by cavity ring-down spectroscopy using a commercial Picarro instrument (model G2401). The minute-averaged dry air mole fractions were adjusted after cross-evaluation against discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory. Pollution spikes due to local anthropogenic pollution sources (e.g., exhaust by the vessel's engine and vents, skidoos, helicopters, on-ice diesel generators) were identified and flagged as follows. For each data point, the gradient (time derivative) was calculated (Beck et al., 2022). Data points corresponding to an abnormally high gradient (> 1.5 times the interquartile range) and neighboring points were discarded. The function “despike” from R package oce (version 1.3-0) was then applied to the time-series to remove any remaining local pollution spikes. Briefly, this function first linearly interpolates across any gaps (missing values). Then, it calculates a running median spanning k elements. The result of these two steps is the “reference” time-series. The standard deviation of the difference between values and the reference is then calculated. Values that differ from the reference by more than n times this standard deviation are considered to be spikes and eliminated. The function was applied once with n = 1 and k = 61 (~ 1 hour). The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of Research Vessel Polarstern, the MOSAiC event label, the original methane dry air mole fraction in nmol/mol, the adjusted methane dry air mole fraction in nmol/mol after cross-evaluation, and a pollution ... |
format |
Dataset |
author |
Angot, Hélène Beck, Ivo Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Schmale, Julia |
author_facet |
Angot, Hélène Beck, Ivo Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Schmale, Julia |
author_sort |
Angot, Hélène |
title |
Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
title_short |
Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
title_full |
Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
title_fullStr |
Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
title_full_unstemmed |
Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 |
title_sort |
methane dry air mole fractions measured in the swiss container during mosaic 2019/2020 |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.944258 https://doi.org/10.1594/PANGAEA.944258 |
op_coverage |
MEDIAN LATITUDE: 85.069314 * MEDIAN LONGITUDE: 56.640103 * SOUTH-BOUND LATITUDE: 78.130100 * WEST-BOUND LONGITUDE: -40.924590 * NORTH-BOUND LATITUDE: 89.999830 * EAST-BOUND LONGITUDE: 147.901200 * DATE/TIME START: 2019-10-07T06:01:00 * DATE/TIME END: 2020-09-30T23:59:00 * MINIMUM ELEVATION: -4412.4 m * MAXIMUM ELEVATION: -214.0 m |
long_lat |
ENVELOPE(-40.924590,147.901200,89.999830,78.130100) |
genre |
Arctic Arctic Ocean Greenland Greenland Sea North Greenland |
genre_facet |
Arctic Arctic Ocean Greenland Greenland Sea North Greenland |
op_relation |
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 Beck, Ivo; Angot, Hélène; Baccarini, Andrea; Dada, Lubna; Quéléver, Lauriane; Jokinen, Tuija; Laurila, Tiia; Lampimäki, Markus; Bukowiecki, Nicolas; Boyer, Matthew; Gong, Xianda; Gysel-Beer, Martin; Petäjä, Tuukka; Wang, Jian; Schmale, Julia (2022): Automated identification of local contamination in remote atmospheric composition time series. Atmospheric Measurement Techniques, 15(14), 4195-4224, https://doi.org/10.5194/amt-15-4195-2022 Haas, Christian (2020): Master track of POLARSTERN cruise PS122/2 in 1 sec resolution (zipped, 36.7 MB) [dataset]. 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) [dataset]. 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) [dataset]. 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) [dataset]. 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) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.926911 Kelley, Dan; Richards, Clark (2022): oce: Analysis of Oceanographic Data. R package. https://dankelley.github.io/oce/ https://doi.pangaea.de/10.1594/PANGAEA.944258 https://doi.org/10.1594/PANGAEA.944258 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.94425810.1038/s41597-022-01769-610.5194/amt-15-4195-202210.1594/PANGAEA.92467210.1594/PANGAEA.92467810.1594/PANGAEA.92466910.1594/PANGAEA.92683010.1594/PANGAEA.926911 |
_version_ |
1810294107189280768 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.944258 2024-09-15T17:52:02+00:00 Methane dry air mole fractions measured in the Swiss container during MOSAiC 2019/2020 Angot, Hélène Beck, Ivo Jokinen, Tuija Laurila, Tiia Quéléver, Lauriane Schmale, Julia MEDIAN LATITUDE: 85.069314 * MEDIAN LONGITUDE: 56.640103 * SOUTH-BOUND LATITUDE: 78.130100 * WEST-BOUND LONGITUDE: -40.924590 * NORTH-BOUND LATITUDE: 89.999830 * EAST-BOUND LONGITUDE: 147.901200 * DATE/TIME START: 2019-10-07T06:01:00 * DATE/TIME END: 2020-09-30T23:59:00 * MINIMUM ELEVATION: -4412.4 m * MAXIMUM ELEVATION: -214.0 m 2022 text/tab-separated-values, 1052082 data points https://doi.pangaea.de/10.1594/PANGAEA.944258 https://doi.org/10.1594/PANGAEA.944258 en eng PANGAEA 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 Beck, Ivo; Angot, Hélène; Baccarini, Andrea; Dada, Lubna; Quéléver, Lauriane; Jokinen, Tuija; Laurila, Tiia; Lampimäki, Markus; Bukowiecki, Nicolas; Boyer, Matthew; Gong, Xianda; Gysel-Beer, Martin; Petäjä, Tuukka; Wang, Jian; Schmale, Julia (2022): Automated identification of local contamination in remote atmospheric composition time series. Atmospheric Measurement Techniques, 15(14), 4195-4224, https://doi.org/10.5194/amt-15-4195-2022 Haas, Christian (2020): Master track of POLARSTERN cruise PS122/2 in 1 sec resolution (zipped, 36.7 MB) [dataset]. 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) [dataset]. 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) [dataset]. 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) [dataset]. 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) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.926911 Kelley, Dan; Richards, Clark (2022): oce: Analysis of Oceanographic Data. R package. https://dankelley.github.io/oce/ https://doi.pangaea.de/10.1594/PANGAEA.944258 https://doi.org/10.1594/PANGAEA.944258 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Arctic Ocean Cavity ring down spectrometer G2401 Picarro Inc. Central Arctic Ocean DATE/TIME Event label Flag pollution LATITUDE LONGITUDE Methane dry-air mole fraction methane concentrations MOSAiC MOSAiC_ATMOS MOSAiC20192020 Multidisciplinary drifting Observatory for the Study of Arctic Climate North Greenland Sea Polarstern PS122/1 PS122/1_1-75 PS122/2 PS122/2_14-256 PS122/3 PS122/3_28-38 PS122/4 PS122/4_43-30 PS122/5 PS122/5_58-29 TGM Trace gas monitor dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.94425810.1038/s41597-022-01769-610.5194/amt-15-4195-202210.1594/PANGAEA.92467210.1594/PANGAEA.92467810.1594/PANGAEA.92466910.1594/PANGAEA.92683010.1594/PANGAEA.926911 2024-07-30T23:42:28Z This dataset contains minute-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. The measurements were performed in the Swiss container on the D-deck of Research Vessel Polarstern. Data were collected by cavity ring-down spectroscopy using a commercial Picarro instrument (model G2401). The minute-averaged dry air mole fractions were adjusted after cross-evaluation against discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory. Pollution spikes due to local anthropogenic pollution sources (e.g., exhaust by the vessel's engine and vents, skidoos, helicopters, on-ice diesel generators) were identified and flagged as follows. For each data point, the gradient (time derivative) was calculated (Beck et al., 2022). Data points corresponding to an abnormally high gradient (> 1.5 times the interquartile range) and neighboring points were discarded. The function “despike” from R package oce (version 1.3-0) was then applied to the time-series to remove any remaining local pollution spikes. Briefly, this function first linearly interpolates across any gaps (missing values). Then, it calculates a running median spanning k elements. The result of these two steps is the “reference” time-series. The standard deviation of the difference between values and the reference is then calculated. Values that differ from the reference by more than n times this standard deviation are considered to be spikes and eliminated. The function was applied once with n = 1 and k = 61 (~ 1 hour). The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of Research Vessel Polarstern, the MOSAiC event label, the original methane dry air mole fraction in nmol/mol, the adjusted methane dry air mole fraction in nmol/mol after cross-evaluation, and a pollution ... Dataset Arctic Arctic Ocean Greenland Greenland Sea North Greenland PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-40.924590,147.901200,89.999830,78.130100) |