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f | 1 | { | f | 1 | { |
2 | "Creator": "Hadley A. McIntosh Marcek, Lance F. W. Lesack, Beth N. | 2 | "Creator": "Hadley A. McIntosh Marcek, Lance F. W. Lesack, Beth N. | ||
3 | Orcutt, C. Geoff Wheat, Scott R. Dallimore, Kimberley Geeves, Laura L. | 3 | Orcutt, C. Geoff Wheat, Scott R. Dallimore, Kimberley Geeves, Laura L. | ||
4 | Lapham", | 4 | Lapham", | ||
5 | "author": null, | 5 | "author": null, | ||
6 | "author_email": null, | 6 | "author_email": null, | ||
7 | "creator_user_id": "3d05e0de-1423-4655-b300-645717582c74", | 7 | "creator_user_id": "3d05e0de-1423-4655-b300-645717582c74", | ||
8 | "description": "", | 8 | "description": "", | ||
9 | "funding_program": "", | 9 | "funding_program": "", | ||
10 | "geographic_range": [ | 10 | "geographic_range": [ | ||
11 | "Beaufort Delta" | 11 | "Beaufort Delta" | ||
12 | ], | 12 | ], | ||
13 | "groups": [], | 13 | "groups": [], | ||
14 | "id": "43f17cd1-5ef3-4432-83ee-a8b8cd6f0455", | 14 | "id": "43f17cd1-5ef3-4432-83ee-a8b8cd6f0455", | ||
15 | "isopen": false, | 15 | "isopen": false, | ||
16 | "license_id": "notspecified", | 16 | "license_id": "notspecified", | ||
17 | "license_title": "License Not Specified", | 17 | "license_title": "License Not Specified", | ||
18 | "local_relevance": "This study investigates methane dynamics of a | 18 | "local_relevance": "This study investigates methane dynamics of a | ||
19 | small lake in the Mackenzie River Delta of the NWT.", | 19 | small lake in the Mackenzie River Delta of the NWT.", | ||
20 | "maintainer": null, | 20 | "maintainer": null, | ||
21 | "maintainer_email": null, | 21 | "maintainer_email": null, | ||
22 | "metadata_created": "2023-12-06T22:41:39.094959", | 22 | "metadata_created": "2023-12-06T22:41:39.094959", | ||
n | 23 | "metadata_modified": "2023-12-06T22:42:00.799831", | n | 23 | "metadata_modified": "2023-12-06T22:42:00.945918", |
24 | "metatags": "Methane,Lake,Freshwater,Research", | 24 | "metatags": "Methane,Lake,Freshwater,Research", | ||
25 | "modified_date": "2021-02-08", | 25 | "modified_date": "2021-02-08", | ||
26 | "name": "continuous-dynamics-of-dissolved-methane-over-2-years", | 26 | "name": "continuous-dynamics-of-dissolved-methane-over-2-years", | ||
27 | "notes": "We studied dissolved methane dynamics within a small | 27 | "notes": "We studied dissolved methane dynamics within a small | ||
28 | Mackenzie River Delta lake, autonomously and continuously collecting | 28 | Mackenzie River Delta lake, autonomously and continuously collecting | ||
29 | water samples for two years at various depths.", | 29 | water samples for two years at various depths.", | ||
30 | "num_resources": 1, | 30 | "num_resources": 1, | ||
31 | "num_tags": 4, | 31 | "num_tags": 4, | ||
32 | "organization": { | 32 | "organization": { | ||
33 | "approval_status": "approved", | 33 | "approval_status": "approved", | ||
34 | "created": "2023-11-27T15:29:16.450990", | 34 | "created": "2023-11-27T15:29:16.450990", | ||
35 | "description": "", | 35 | "description": "", | ||
36 | "id": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | 36 | "id": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | ||
37 | "image_url": "", | 37 | "image_url": "", | ||
38 | "is_organization": true, | 38 | "is_organization": true, | ||
39 | "name": "academic-journal", | 39 | "name": "academic-journal", | ||
40 | "state": "active", | 40 | "state": "active", | ||
41 | "title": "Academic Journal", | 41 | "title": "Academic Journal", | ||
42 | "type": "organization" | 42 | "type": "organization" | ||
43 | }, | 43 | }, | ||
44 | "owner_org": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | 44 | "owner_org": "76bec39b-e0d4-4f47-8eb8-0a7e4a6698f3", | ||
45 | "private": false, | 45 | "private": false, | ||
46 | "relationships_as_object": [], | 46 | "relationships_as_object": [], | ||
47 | "relationships_as_subject": [], | 47 | "relationships_as_subject": [], | ||
48 | "release_date": "2021-02-08", | 48 | "release_date": "2021-02-08", | ||
49 | "resources": [ | 49 | "resources": [ | ||
50 | { | 50 | { | ||
51 | "cache_last_updated": null, | 51 | "cache_last_updated": null, | ||
52 | "cache_url": null, | 52 | "cache_url": null, | ||
53 | "created": "2023-12-06T22:42:00.818019", | 53 | "created": "2023-12-06T22:42:00.818019", | ||
54 | "datastore_active": false, | 54 | "datastore_active": false, | ||
55 | "datastore_contains_all_records_of_source_file": false, | 55 | "datastore_contains_all_records_of_source_file": false, | ||
56 | "description": null, | 56 | "description": null, | ||
57 | "format": "", | 57 | "format": "", | ||
58 | "hash": "", | 58 | "hash": "", | ||
59 | "id": "4540ee17-f0ed-43c3-b7b2-e5140cef987d", | 59 | "id": "4540ee17-f0ed-43c3-b7b2-e5140cef987d", | ||
60 | "last_modified": null, | 60 | "last_modified": null, | ||
n | 61 | "metadata_modified": "2023-12-06T22:42:00.808015", | n | 61 | "metadata_modified": "2023-12-06T22:42:00.952201", |
62 | "mimetype": null, | 62 | "mimetype": null, | ||
63 | "mimetype_inner": null, | 63 | "mimetype_inner": null, | ||
64 | "name": "Continuous Dynamics of Dissolved Methane Over 2 Years | 64 | "name": "Continuous Dynamics of Dissolved Methane Over 2 Years | ||
65 | and its Carbon Isotopes (\u03b413C, \u039414C) in a Small Arctic Lake | 65 | and its Carbon Isotopes (\u03b413C, \u039414C) in a Small Arctic Lake | ||
66 | in the Mackenzie Delta", | 66 | in the Mackenzie Delta", | ||
67 | "package_id": "43f17cd1-5ef3-4432-83ee-a8b8cd6f0455", | 67 | "package_id": "43f17cd1-5ef3-4432-83ee-a8b8cd6f0455", | ||
68 | "position": 0, | 68 | "position": 0, | ||
69 | "resource_type": null, | 69 | "resource_type": null, | ||
70 | "size": null, | 70 | "size": null, | ||
71 | "state": "active", | 71 | "state": "active", | ||
72 | "url": | 72 | "url": | ||
73 | "https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JG006038", | 73 | "https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JG006038", | ||
74 | "url_type": null | 74 | "url_type": null | ||
75 | } | 75 | } | ||
76 | ], | 76 | ], | ||
t | 77 | "state": "draft", | t | 77 | "state": "active", |
78 | "summary": "Seasonally ice-covered permafrost lakes in the Arctic | 78 | "summary": "Seasonally ice-covered permafrost lakes in the Arctic | ||
79 | emit methane to the atmosphere during periods of open-water. However, | 79 | emit methane to the atmosphere during periods of open-water. However, | ||
80 | processes contributing to methane cycling under-ice have not been | 80 | processes contributing to methane cycling under-ice have not been | ||
81 | thoroughly addressed despite the potential for significant methane | 81 | thoroughly addressed despite the potential for significant methane | ||
82 | emission to the atmosphere at ice-out. We studied annual dissolved | 82 | emission to the atmosphere at ice-out. We studied annual dissolved | ||
83 | methane dynamics within a small (0.2 ha) Mackenzie River Delta lake | 83 | methane dynamics within a small (0.2 ha) Mackenzie River Delta lake | ||
84 | using sensor and water sampling packages that autonomously and | 84 | using sensor and water sampling packages that autonomously and | ||
85 | continuously collected lake water samples, respectively, for two years | 85 | continuously collected lake water samples, respectively, for two years | ||
86 | at multiple water column depths. Lake physical and biogeochemical | 86 | at multiple water column depths. Lake physical and biogeochemical | ||
87 | properties (temperature; light; concentrations of dissolved oxygen, | 87 | properties (temperature; light; concentrations of dissolved oxygen, | ||
88 | manganese, iron, and dissolved methane, including stable carbon, and | 88 | manganese, iron, and dissolved methane, including stable carbon, and | ||
89 | radiocarbon isotopes) revealed annual patterns. Dissolved methane | 89 | radiocarbon isotopes) revealed annual patterns. Dissolved methane | ||
90 | concentrations increase under-ice after electron acceptors (oxygen, | 90 | concentrations increase under-ice after electron acceptors (oxygen, | ||
91 | manganese, and iron oxides) are depleted or inaccessible from the | 91 | manganese, and iron oxides) are depleted or inaccessible from the | ||
92 | water column. The radiocarbon age of dissolved methane suggests a | 92 | water column. The radiocarbon age of dissolved methane suggests a | ||
93 | source from recently decomposed carbon as opposed to thawed ancient | 93 | source from recently decomposed carbon as opposed to thawed ancient | ||
94 | permafrost. Sources of dissolved methane under-ice include a diffusive | 94 | permafrost. Sources of dissolved methane under-ice include a diffusive | ||
95 | flux from the sediments and may include water column methanogenesis | 95 | flux from the sediments and may include water column methanogenesis | ||
96 | and/or under-ice hydrodynamic controls. Following ice-out, the water | 96 | and/or under-ice hydrodynamic controls. Following ice-out, the water | ||
97 | column only partially mixes allowing half of the winter-derived | 97 | column only partially mixes allowing half of the winter-derived | ||
98 | dissolved methane to be microbially oxidized. Despite oxidation at | 98 | dissolved methane to be microbially oxidized. Despite oxidation at | ||
99 | depth, surface water was a source of methane to the atmosphere. The | 99 | depth, surface water was a source of methane to the atmosphere. The | ||
100 | greatest diffusive fluxes to the atmosphere occurred following ice-out | 100 | greatest diffusive fluxes to the atmosphere occurred following ice-out | ||
101 | (75 mmol CH4 m\u22122 d\u22121) and during a mixing episode in | 101 | (75 mmol CH4 m\u22122 d\u22121) and during a mixing episode in | ||
102 | mid-July, likely driven by a storm event. This study demonstrates the | 102 | mid-July, likely driven by a storm event. This study demonstrates the | ||
103 | importance of fine-scale temporal sampling to understand dissolved | 103 | importance of fine-scale temporal sampling to understand dissolved | ||
104 | methane processes in seasonally ice-covered lakes.", | 104 | methane processes in seasonally ice-covered lakes.", | ||
105 | "tags": [ | 105 | "tags": [ | ||
106 | { | 106 | { | ||
107 | "display_name": "Freshwater", | 107 | "display_name": "Freshwater", | ||
108 | "id": "26735fe8-c8b3-40a2-9fe0-53d82634c10e", | 108 | "id": "26735fe8-c8b3-40a2-9fe0-53d82634c10e", | ||
109 | "name": "Freshwater", | 109 | "name": "Freshwater", | ||
110 | "state": "active", | 110 | "state": "active", | ||
111 | "vocabulary_id": null | 111 | "vocabulary_id": null | ||
112 | }, | 112 | }, | ||
113 | { | 113 | { | ||
114 | "display_name": "Lake", | 114 | "display_name": "Lake", | ||
115 | "id": "7396036b-24e9-4f28-a79d-9169488e1c4e", | 115 | "id": "7396036b-24e9-4f28-a79d-9169488e1c4e", | ||
116 | "name": "Lake", | 116 | "name": "Lake", | ||
117 | "state": "active", | 117 | "state": "active", | ||
118 | "vocabulary_id": null | 118 | "vocabulary_id": null | ||
119 | }, | 119 | }, | ||
120 | { | 120 | { | ||
121 | "display_name": "Methane", | 121 | "display_name": "Methane", | ||
122 | "id": "6b8e4190-5f77-4e74-92fc-afc9a0790f64", | 122 | "id": "6b8e4190-5f77-4e74-92fc-afc9a0790f64", | ||
123 | "name": "Methane", | 123 | "name": "Methane", | ||
124 | "state": "active", | 124 | "state": "active", | ||
125 | "vocabulary_id": null | 125 | "vocabulary_id": null | ||
126 | }, | 126 | }, | ||
127 | { | 127 | { | ||
128 | "display_name": "Research", | 128 | "display_name": "Research", | ||
129 | "id": "9ce08dce-f710-4692-8be5-23a0beedaf90", | 129 | "id": "9ce08dce-f710-4692-8be5-23a0beedaf90", | ||
130 | "name": "Research", | 130 | "name": "Research", | ||
131 | "state": "active", | 131 | "state": "active", | ||
132 | "vocabulary_id": null | 132 | "vocabulary_id": null | ||
133 | } | 133 | } | ||
134 | ], | 134 | ], | ||
135 | "title": "Continuous Dynamics of Dissolved Methane Over 2 Years and | 135 | "title": "Continuous Dynamics of Dissolved Methane Over 2 Years and | ||
136 | its Carbon Isotopes (\u03b413C, \u039414C) in a Small Arctic Lake in | 136 | its Carbon Isotopes (\u03b413C, \u039414C) in a Small Arctic Lake in | ||
137 | the Mackenzie Delta", | 137 | the Mackenzie Delta", | ||
138 | "type": "dataset", | 138 | "type": "dataset", | ||
139 | "url": null, | 139 | "url": null, | ||
140 | "version": null | 140 | "version": null | ||
141 | } | 141 | } |