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Bussmann, Ingeborg; Fedorova, Irina V (2019): Dissolved methane concentrations under ice cover in the Lena Delta area [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.905776

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Abstract:
In spring 2017 and 2018 holes were drilled through the ice cover of Tiksi Bay, Lake Golzovoye and the Lena River, Russia, Siberia. The sample water was processed in two ways:
#1: The water was transferred to glass bottles (120 ml) and poisoned with 0.2 ml of 25% H2SO4. In the home laboratory a 20 ml head space was created and analyzed via gas chromatography. Magen et al. (2014).
#2: The water was transferred to two times 60-ml syringes, 20 ml of ambient air was added to 40 ml of sample. After shaking for 2 min the combined gas phase was transferred into a glas bottle filled with saturated NaCl solution. In the home laboratory this gas phase was analyzed via gas chromatopgraphy. Ricão Canelhas et al. (2016).
Keyword(s):
dissolved methane concentration; lake ice; under-ice
Further details:
Magen, Cédric; Lapham, Laura; Pohlman, John W; Marshall, K; Bosman, Samantha; Casso, Michael; Chanton, Jeffrey P (2014): A simple headspace equilibration method for measuring dissolved methane. Limnology and Oceanography-Methods, 12(9), 637-650, https://doi.org/10.4319/lom.2014.12.637
Ricão Canelhas, Moinica; Denfeld, Blaize A; Weyhenmeyer, Gesa A; Bastviken, David; Bertilsson, Stefan (2016): Methane oxidation at the water-ice interface of an ice-covered lake. Limnology and Oceanography, 61(S1), S78-S90, https://doi.org/10.1002/lno.10288
Coverage:
Median Latitude: 72.140000 * Median Longitude: 127.763496 * South-bound Latitude: 71.726100 * West-bound Longitude: 126.745900 * North-bound Latitude: 72.413300 * East-bound Longitude: 129.345300
Date/Time Start: 2017-04-07T00:00:00 * Date/Time End: 2018-04-21T00:00:00
Minimum DEPTH, water: 1 m * Maximum DEPTH, water: 28 m
Event(s):
BYK17_ICE20 (BK17-LK-2)  * Latitude: 71.745300 * Longitude: 129.302200 * Date/Time: 2017-04-07T00:00:00 * Elevation: 5.0 m * Recovery: 1.9 m * Location: Goltsovoye Lake, Siberia, Russia * Campaign: RU-Land_2017_Lena_Bykovsky (Bykovsky_2017_spring) * Basis: AWI Arctic Land Expedition * Method/Device: Ice drill (ICEDRILL)
BYK17_ICE22 (BK17-LK-4)  * Latitude: 71.745300 * Longitude: 129.306500 * Date/Time: 2017-04-08T00:00:00 * Elevation: 5.0 m * Recovery: 1.33 m * Location: Goltsovoye Lake, Siberia, Russia * Campaign: RU-Land_2017_Lena_Bykovsky (Bykovsky_2017_spring) * Basis: AWI Arctic Land Expedition * Method/Device: Ice drill (ICEDRILL)
BYK17_ICE23 (BK17-LK-5)  * Latitude: 71.745300 * Longitude: 129.310600 * Date/Time: 2017-04-08T00:00:00 * Elevation: 5.0 m * Recovery: 1.68 m * Location: Goltsovoye Lake, Siberia, Russia * Campaign: RU-Land_2017_Lena_Bykovsky (Bykovsky_2017_spring) * Basis: AWI Arctic Land Expedition * Method/Device: Ice drill (ICEDRILL)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventBussmann, Ingeborg
2 DATE/TIMEDate/TimeBussmann, IngeborgGeocode
3 LATITUDELatitudeBussmann, IngeborgGeocode
4 LONGITUDELongitudeBussmann, IngeborgGeocode
5 Area/localityAreaBussmann, Ingeborg
6 Sample commentSample commentBussmann, Ingeborgsample 1
7 Sample commentSample commentBussmann, Ingeborgsurf/bottom
8 DEPTH, waterDepth watermBussmann, IngeborgGeocode
9 MethaneCH4nmol/lBussmann, Ingeborg
10 AnalysisAnalysisBussmann, Ingeborg
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
130 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Date/Time		3 
Latitude		4 
Longitude		5 
Area		6 
Sample comment
(sample 1)		7 
Sample comment
(surf/bottom)		8 
Depth water [m]		9 
CH4 [nmol/l]		10 
Analysis
Lena_Vert2 2017-04-1972.3748126.7520Lena RiverMain Channel Vert 2surface110#1
Lena_Vert22017-04-1972.3748126.7520Lena RiverMain Channel Vert 2bottom158#1
Lena_Vert4 2017-04-2072.3734126.7459Lena RiverMain Channel Vert 4surface9#1
Lena_Vert42017-04-2072.3734126.7459Lena RiverMain Channel Vert 4bottom169#1
Bykovskaya_Vert1 2017-04-2272.4133126.8673Lena RiverBykovskaya Channel Vert 1surface110#1
Bykovskaya_Vert12017-04-2272.4133126.8673Lena RiverBykovskaya Channel Vert 1bottom99#1
BYK17_ICE20 2017-04-0771.7453129.3022Goltsovoye LakeBYK17- ICE 20surface12522#2
BYK17_ICE202017-04-0771.7453129.3022Goltsovoye LakeBYK17- ICE 20bottom52242#2
BYK17_ICE22 2017-04-0871.7453129.3065Goltsovoye LakeBYK17- ICE 22bottom8124#2
BYK17_ICE222017-04-0871.7453129.3065Goltsovoye LakeBYK17- ICE 22bottom8136#2
BYK17_ICE23 2017-04-0871.7453129.3106Goltsovoye LakeBYK17- ICE 23surface11672#2
BYK17_ICE232017-04-0871.7453129.3106Goltsovoye LakeBYK17- ICE 23bottom6305#2
BYK17_ICE24 2017-04-0871.7453129.3046Goltsovoye LakeBYK17- ICE 24surface16964#2
BYK17_ICE242017-04-0871.7453129.3046Goltsovoye LakeBYK17- ICE 24bottom66619#2
BYK17_ICE29 2017-04-1071.7261129.3453Tiksi BayBYK17- ICE 29surface151#2
BYK17_ICE30 2017-04-1071.7305129.3432Tiksi BayBYK17- ICE 30surface1154#2
Bykovskaya_Vert12018-04-1872.4123126.8673Lena RiverBykovskaya Channel, Vert. 1surface114#1
Bykovskaya_Vert12018-04-1872.4123126.8673Lena RiverBykovskaya Channel, Vert. 1surface111#1
Bykovskaya_Vert12018-04-1872.4123126.8673Lena RiverBykovskaya Channel, Vert. 1bottom1510#1
Bykovskaya_Vert12018-04-1872.4123126.8673Lena RiverBykovskaya Channel, Vert. 1bottom159#1
Lena_Vert22018-04-2172.3748126.7525Lena RiverMain Channel, Vert.2surface15#1
Lena_Vert22018-04-2172.3748126.7525Lena RiverMain Channel, Vert.2surface118#1
Lena_Vert22018-04-2172.3748126.7525Lena RiverMain Channel, Vert.2bottom227#1
Lena_Vert22018-04-2172.3748126.7525Lena RiverMain Channel, Vert.2bottom224#1
Lena_Vert3 2018-04-2172.3748126.7525Lena RiverMain Channel, Vert.3bottom2811#1
Lena_Vert32018-04-2172.3748126.7525Lena RiverMain Channel, Vert.3bottom2812#1