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Boike, Julia; Cable, William L; Banaskiewicz, Benjamin; Jentzsch, Katharina; Lapham, Laura (2024): Fluxes of CH4 and CO2 concentrations in surface water of Swiss Cheese Lake, Mackenzie Delta, Northwest Territories, Canada on 2021-09-16 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965909, In: Boike, Julia; Banaskiewicz, Benjamin; Cable, William L; Erkens, Ephraim; Haberland, Christian; Miesner, Frederieke; Overduin, Pier Paul; Ryberg, Trond (2022): Permafrost related measurements in the Mackenzie Delta, Northwest Territories, Canada, from the MOSES field campaign in September 2021 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.949183

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Abstract:
This dataset contains calculated fluxes of CH4 and CO2 from surface waters in September 2021 in Swiss Cheese Lake in the Mackenzie Delta, Northwest Territories, Canada. We measured surface water gas concentrations from a small boat using a closed loop chamber and a Microportable Greenhouse Gas Analyzer (Los Gatos Research). The measurements were part of the "Mackenzie Delta Permafrost Field Campaign" (mCan2021) within the "Modular Observation solutions for Earth Systems" (MOSES) program.
Keyword(s):
CO2 fluxes; degrading Permafrost; greenhouse gas analyzer; Mackenzie Delta; spatial CH4
Related to:
Boike, Julia; Cable, William L; Banaskiewicz, Benjamin; Jentzsch, Katharina; Lapham, Laura (2024): Floating chamber concentration measurements of CH4 and CO2 at Swiss Cheese Lake, Mackenzie Delta, Northwest Territories, Canada on 2021-09-16 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965512
Data processing report:
README - Surface water CH4 and CO2 fluxes, Swiss Cheese Lake, MOSES 2021
Project(s):
Modular Observation Solutions for Earth Systems (MOSES)
Permafrost Research (AWI_Perma)
Coverage:
Latitude: 69.232000 * Longitude: -135.251300
Date/Time Start: 2021-09-13T00:00:00 * Date/Time End: 2021-09-16T00:00:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 0 m
Event(s):
CA-Land_2021_NWCanada_SwissCheeseLake * Latitude: 69.232000 * Longitude: -135.251300 * Date/Time Start: 2021-09-13T00:00:00 * Date/Time End: 2021-09-16T00:00:00 * Location: Swiss Cheese Lake * Campaign: CA-Land_2021_NWCanada (MOSES 2021, mCan2021) * Basis: AWI Arctic Land Expedition * Method/Device: Multiple measurements from boat (MULT_Boat)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Date/time start, experimentDate/time start expBoike, Julia
2 Date/time end, experimentDate/time end expBoike, Julia
3 SiteSiteBoike, Julia
4 DEPTH, waterDepth watermBoike, JuliaGeocode
5 Temperature, airTTT°CBoike, Juliaoutside of the chamber
6 Coefficient of determinationR**2Boike, JuliaCO2
7 SlopeSlopeBoike, JuliaCO2
8 Carbon dioxide, fluxCO2 fluxµmol/m2/sBoike, Julia
9 Carbon dioxide, fluxCO2 fluxµmol/m2/hBoike, Julia
10 Carbon dioxide, flux, in mass CO2 carbon per areaCO2-C fluxmg/m2/hBoike, Julia
11 Coefficient of determinationR**2Boike, JuliaCH4
12 SlopeSlopeBoike, JuliaCH4
13 Methane, fluxCH4 fluxµmol/m2/sBoike, Juliatotal
14 Methane, fluxCH4 fluxµmol/m2/sBoike, Juliadiffusive
15 Methane, fluxCH4 fluxµmol/m2/hBoike, Juliaflux rate from conc. gradient
16 Methane, fluxCH4 fluxµmol/m2/sBoike, Juliaebullition flux rate
17 Methane, flux, in mass CH4 carbon per areaC-CH4 fluxmg/m2/hBoike, Juliaflux rate from conc. gradient
18 Methane, fluxCH4 fluxµmol/m2/hBoike, Juliatotal
19 Methane, fluxCH4 fluxµmol/m2/hBoike, Juliadiffusive
20 Methane, fluxCH4 fluxµmol/m2/hBoike, Juliaebullition flux rate
21 Methane, flux, in mass CH4 carbon per areaC-CH4 fluxmg/m2/hBoike, Juliatotal
22 Methane, flux, in mass CH4 carbon per areaC-CH4 fluxmg/m2/hBoike, Juliadiffusive
23 Methane, flux, in mass CH4 carbon per areaC-CH4 fluxmg/m2/hBoike, Juliaebullition flux rate
24 LATITUDELatitudeBoike, JuliaGeocode – Coordinates of closest water concentration
25 LONGITUDELongitudeBoike, JuliaGeocode – Coordinates of closest water concentration
26 LATITUDELatitudeBoike, JuliaGeocode
27 LONGITUDELongitudeBoike, JuliaGeocode
28 CommentCommentBoike, Julia
29 Transfer velocity, scaledk600cm/hBoike, Julia
30 Schmidt numberScBoike, Julia
31 MethaneCH4µmol/lBoike, JuliaCH4 conc. in water at closest location to CH4 air conc. Measurement
32 IdentificationIDBoike, Juliaid of CH4 conc. in water in file with GHG conc. measured in water
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
192 data points

Data

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

1 
Date/time start exp		2 
Date/time end exp		3 
Site		4 
Depth water [m]		5 
TTT [°C]
(outside of the chamber)		6 
R**2
(CO2)		7 
Slope
(CO2)		8 
CO2 flux [µmol/m2/s]		9 
CO2 flux [µmol/m2/h]		10 
CO2-C flux [mg/m2/h]		11 
R**2
(CH4)		12 
Slope
(CH4)		13 
CH4 flux [µmol/m2/s]
(total)		14 
CH4 flux [µmol/m2/s]
(diffusive)		15 
CH4 flux [µmol/m2/h]
(flux rate from conc. gradient)		16 
CH4 flux [µmol/m2/s]
(ebullition flux rate)		17 
C-CH4 flux [mg/m2/h]
(flux rate from conc. gradient)		18 
CH4 flux [µmol/m2/h]
(total)		19 
CH4 flux [µmol/m2/h]
(diffusive)		20 
CH4 flux [µmol/m2/h]
(ebullition flux rate)		21 
C-CH4 flux [mg/m2/h]
(total)		22 
C-CH4 flux [mg/m2/h]
(diffusive)		23 
C-CH4 flux [mg/m2/h]
(ebullition flux rate)		24 
Latitude
(Coordinates of closest water ...)		25 
Longitude
(Coordinates of closest water ...)		26 
Latitude		27 
Longitude		28 
Comment		29 
k600 [cm/h]		30 
Sc		31 
CH4 [µmol/l]
(CH4 conc. in water at closest...)		32 
ID
(id of CH4 conc. in water in f...)
2021-09-16T21:07:322021-09-16T21:09:321015.30.53-0.021320194-0.141508292-509.4298508-6.1131582101.000.0084463922.0851287910.05606114634.214033242.0290676450.4105683997506.463647201.82012527304.64352290.077563762.42184150387.6557222669.23265483-135.251244769.23268090-135.2509378"not over a seep; but in area where there are lots of bubbles visible (windstill)"3.248163589781.67524821.2063066364769
2021-09-16T21:21:452021-09-16T21:23:442015.30.73-0.012934934-0.085852900-309.0704400-3.7088452800.500.0042625597.0847110040.02829183934.214033247.0564191650.41056839925504.959620101.850620025403.109000306.059515401.222207440304.8373079069.23265483-135.251244769.23268185-135.2509092"Over seep/catching bubbles; trying to catch bubbles"3.248163589781.67524821.2063066364769
2021-09-16T22:02:092021-09-16T22:04:093012.00.91-0.016365879-0.109881952-395.5750258-4.7469003091.000.0049591300.03329603729.620884270.355450611119.86573181.43838878169.23166417-135.253547569.23166815-135.2535993"Over the area where Scott marked seeps; but not over a bubble area; not directly over bubbles"3.248163589932.83273471.1414209303620
2021-09-16T22:13:002021-09-16T22:14:594012.70.97-0.034586953-0.231651282-833.9446159-10.0073353901.000.0095837212.4075336970.06418840230.046046462.3433452940.3605525578667.121309231.07824868436.043060104.005455702.772938984101.2325167069.23165083-135.253558269.23166102-135.2536851very small waves3.248163589897.79152371.1357990243621
2021-09-16T22:20:462021-09-16T22:22:465013.40.98-0.054004268-0.360818216-1298.9455790-15.5873469500.980.0173223821.5907602470.11573587333.412584771.4750243750.4009510175726.736890416.64914175310.08774868.720842684.99978970163.7210529869.23243233-135.252585069.23239816-135.2527400"Fluxes collected over track across lake; travel back to shore/helicopter"3.248163589864.43821651.2389166543429
2021-09-16T22:35:302021-09-16T22:37:296013.40.73-0.021453028-0.143333918-516.0021062-6.1920252751.000.0047935700.03202723538.589259700.463071116115.29804641.38357655669.23310183-135.251472869.23317984-135.2501942Fluxes collected right at shore (close to helicopter parking spot)3.248163589864.43821651.4302119784797
2021-09-16T22:59:032021-09-16T23:01:027013.40.95-0.030827781-0.205969368-741.4897248-8.8978766980.330.0120476490.08049384929.502502580.354030031289.77785643.47733427769.23247950-135.251155769.23247020-135.2511777"Tedlar bag 129; conc 784 ppm"3.248163589864.43821651.0944261364758
2021-09-16T23:11:442021-09-16T23:13:438013.60.99-0.053337597-0.356115482-1282.0157340-15.3841888101.000.0184919540.12346396426.981521500.323778258444.47026905.33364322869.23235550-135.251057769.23230524-135.2514496"Tedlar bag 99; conc. 7.3 ppm"3.248163589855.20531070.9959089214750