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Part 1: Document Description
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Citation |
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Title: |
Replication Data for: Reduced methane seepage from Arctic sediments during cold bottom-water conditions |
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Identification Number: |
doi:10.18710/EIFZ2J |
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Distributor: |
DataverseNO |
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Date of Distribution: |
2019-09-30 |
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Version: |
3 |
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Bibliographic Citation: |
Ferré, Bénédicte; Jansson, Pär; Moser, Manuel; Serov, Pavel; Portnov, Alexei; Graves, Carolyn; Panieri, Giuliana; Gründger, Friederike; Berndt, Christian; Lehmann, Moritz F; Niemann, Helge, 2019, "Replication Data for: Reduced methane seepage from Arctic sediments during cold bottom-water conditions", https://doi.org/10.18710/EIFZ2J, DataverseNO, V3, UNF:6:tZnvI4jmCq7dHtQ/8XFbww== [fileUNF] |
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Citation |
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Title: |
Replication Data for: Reduced methane seepage from Arctic sediments during cold bottom-water conditions |
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Identification Number: |
doi:10.18710/EIFZ2J |
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Authoring Entity: |
Ferré, Bénédicte (UiT The Arctic University of Norway) |
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Jansson, Pär (UiT The Arctic University of Norway) |
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Moser, Manuel (UiT The Arctic University of Norway) |
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Serov, Pavel (UiT The Arctic University of Norway) |
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Portnov, Alexei (The Ohio State University) |
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Graves, Carolyn (Baltic Sea Research Institute, IOW, Germany) |
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Panieri, Giuliana (UiT The Arctic University of Norway) |
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Gründger, Friederike (UiT The Arctic University of Norway) |
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Berndt, Christian (GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany) |
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Lehmann, Moritz F (University of Basel) |
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Niemann, Helge (University of Basel) |
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Producer: |
UiT The Arctic University of Norway |
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Date of Production: |
2016-05-08 |
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Grant Number: |
223259 |
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Distributor: |
DataverseNO |
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Distributor: |
UiT The Arctic University of Norway |
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Access Authority: |
Ferré, Bénédicte |
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Depositor: |
Jansson, Pär |
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Date of Deposit: |
2019-09-23 |
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Holdings Information: |
https://doi.org/10.18710/EIFZ2J |
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Study Scope |
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Keywords: |
Earth and Environmental Sciences, Methane, Cold seep, Variability, Arctic, Microbial oxidation, Flare, Backscatter, Ocean, Seasonal |
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Abstract: |
This dataset contains all the necessary data for reproducing the results in the article. "Reduced methane seepage from Arctic sediments during cold bottom-water conditions" |
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<p/> Abstract: Large amounts of methane are trapped within sub-seabed sediments in the Arctic ocean. Seasonal bottom water warming may induce the release of methane from the seafloor, yet methane seepage surveys mainly occur in summer. Here, we compare the seepage activity along the gas hydrate stability limit offshore Svalbard between cold and warm seasons. Hydro-acoustic surveys revealed decreased seepage activity during cold bottom water conditions, with 43 % fewer flares and methane release rates than under warmer conditions. For the first time, we demonstrate that cold seeps “hibernate” during cold seasons when more free methane gas becomes trapped in the sub-seabed sediments. Such a greenhouse gas capacitor increases the potential for methane release during summer months. Seasonal bottom water temperature variations are common in the Arctic continental shelves, and thus methane-seep hibernation is likely a widespread phenomenon underappreciated in previous global methane budgets. |
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Time Period: |
2016-05-06-2016-05-08 |
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Date of Collection: |
2016-05-06-2016-05-08 |
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Country: |
Svalbard and Jan Mayen |
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Geographic Bounding Box: |
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Kind of Data: |
Water temperature |
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Kind of Data: |
Salinity |
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Kind of Data: |
Pressure/ Depth |
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Kind of Data: |
Methane free gas flow rate |
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Kind of Data: |
Methane concentration |
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Kind of Data: |
Methane oxidation rates |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Other Study Description Materials |
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Related Publications |
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Citation |
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Title: |
Ferré, B., Jansson, P.G., Moser, M. et al. (2020) Reduced methane seepage from Arctic sediments during cold bottom-water conditions. Nature Geoscience 13, 144–148 (2020). |
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Identification Number: |
10.1038/s41561-019-0515-3 |
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Bibliographic Citation: |
Ferré, B., Jansson, P.G., Moser, M. et al. (2020) Reduced methane seepage from Arctic sediments during cold bottom-water conditions. Nature Geoscience 13, 144–148 (2020). |
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File Description--f10550 |
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File: CH4_concentration.tab |
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Notes: |
UNF:6:C2v1FvNfqnzsds45vD9Hsw== |
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File Description--f10552 |
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File: Depth_list.tab |
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Notes: |
UNF:6:1mt0I/eZ9g3LP/cMSqgEdw== |
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File Description--f10554 |
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File: Free_gas_flow_rates.tab |
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Notes: |
UNF:6:16rBDKlfeI84mMzlkbVRsA== |
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File Description--f10556 |
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File: Methane_oxidation_rates.tab |
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Notes: |
UNF:6:6mLoLxZIabXhtBZWtI3eaw== |
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List of Variables: |
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Variables |
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f10550 Location: |
Summary Statistics: Min. 674.0; Mean 679.9; Valid 120.0; StDev 3.4916466944201914; Max. 685.0 Variable Format: numeric Notes: UNF:6:+NxtHrGsEX/lM89C+Xm6IQ== |
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f10550 Location: |
Summary Statistics: Valid 120.0; Mean 42497.0; Max. 42498.0; Min. 42496.0; StDev 1.0041928905068676; Variable Format: numeric Notes: UNF:6:eYo8Rhz41d7pJrNJiwQ8EA== |
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f10550 Location: |
Summary Statistics: Max. 9.518; Mean 9.4756; Valid 120.0; Min. 9.433; StDev 0.02397561786692556 Variable Format: numeric Notes: UNF:6:JCP7ohmEF/VeMhOzXMnnyA== |
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f10550 Location: |
Summary Statistics: Mean 78.5546; Min. 78.551; Valid 120.0; Max. 78.557; StDev 0.0016922959393133924 Variable Format: numeric Notes: UNF:6:W04kWwbsWCMR+H6TBGlSng== |
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f10550 Location: |
Summary Statistics: Max. 418.0; Mean 211.525; Valid 120.0; Min. 4.0; StDev 138.54247065961616; Variable Format: numeric Notes: UNF:6:h72Xk5tBjaxqz+fmEI4AEA== |
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f10550 Location: |
Summary Statistics: Min. 1.5; Max. 4.7; StDev 1.1336661234913128; Valid 120.0; Mean 2.8466666666666667 Variable Format: numeric Notes: UNF:6:ivyzOFOZQGhS/z1uGea7Lw== |
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f10550 Location: |
Summary Statistics: Valid 120.0; Max. 35.11; Min. 34.86; Mean 34.977833333333336; StDev 0.09351388099301308 Variable Format: numeric Notes: UNF:6:0K7DZXD751tnTk4PNVxkZg== |
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f10550 Location: |
Summary Statistics: Max. 111.0; StDev 11.121411769358529; Mean 4.7394957983193295; Valid 119.0; Min. 1.0; Variable Format: numeric Notes: UNF:6:FbGNe/MhaPqrLr4VAgJDrg== |
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f10552 Location: |
Summary Statistics: Mean -380.12725794590114; StDev 18.77126191814832; Valid 344.0; Min. -414.44390869; Max. -271.4364624; Variable Format: numeric Notes: UNF:6:d5A6yIEUoMP/7iWLgLBuhA== |
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f10552 Location: |
Summary Statistics: Min. -416.25; Valid 196.0; StDev 17.389538978609902; Max. -261.559997558593; Mean -384.2858676521141; Variable Format: numeric Notes: UNF:6:zQDf2JqCCpYbRYVKn4UrcQ== |
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f10554 Location: |
Summary Statistics: Valid 196.0; Max. 9.5365; Min. 9.37829999999999; Mean 9.445753061224488; StDev 0.03619673651271067 Variable Format: numeric Notes: UNF:6:Ssrdp96JjVMIV77wkepMkg== |
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f10554 Location: |
Summary Statistics: Min. 78.5378999999999; Mean 78.58759846938771; Max. 78.6363999999999; Valid 196.0; StDev 0.028462845735951144 Variable Format: numeric Notes: UNF:6:1jFLMW23+oZyo4JcOJOo6A== |
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f10554 Location: |
Summary Statistics: Max. 398.3315; StDev 17.619668265904195; Mean 366.36288335204046; Valid 196.0; Min. 247.0687 Variable Format: numeric Notes: UNF:6:40Ep4SsxCrSHz4EDG6If9w== |
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f10554 Location: |
Summary Statistics: Valid 196.0; Max. 1852.350975; Mean 94.46470080867334; Min. 2.2646; StDev 242.69929978254652; Variable Format: numeric Notes: UNF:6:ZkGy3GaZHNAFiIVhl/E7ZQ== |
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f10556 Location: |
Summary Statistics: Mean -227.27272727272728; Min. -400.0; Max. 0.0; Valid 11.0; StDev 148.93561757289015 Variable Format: numeric Notes: UNF:6:IjDgUllqmh6RTN68bcdhaA== |
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f10556 Location: |
Summary Statistics: Min. 0.0; StDev 4.3009376005729254E-4; Max. 0.0011890534003572224; Valid 11.0; Mean 3.4712821123081137E-4; Variable Format: numeric Notes: UNF:6:ups0yFziQLJGwS19GCfrOA== |
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f10556 Location: |
Summary Statistics: Max. 0.0016446160095141876; Min. 0.0; Mean 3.924372753084215E-4; StDev 5.640867685336107E-4; Valid 11.0 Variable Format: numeric Notes: UNF:6:9Y34nfaV+83Ly0loIvJF6A== |
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Label: |
00_ReadMe.txt |
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Notes: |
text/plain |
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Label: |
CH4_concentration.txt |
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Notes: |
text/plain |
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Label: |
Depth_list.txt |
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Notes: |
text/plain |
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Label: |
Free_gas_flow_rates.txt |
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Notes: |
text/plain |
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Label: |
Methane_oxidation_rates.txt |
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Notes: |
text/plain |