Grünberg, Inge; Anders, Katharina; Marx, Sabrina; Lange, Stephan; Boike, Julia (2020): Topsoil temperature data below different vegetation types at Trail Valley Creek, Canada, 2016-2018: metadata overview [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.918614, In: Grünberg, I et al. (2020): Topsoil temperature data below different vegetation types at Trail Valley Creek, Canada, 2016-2018 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.918615
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Abstract:
The datasets were acquired at the Arctic tundra site of Trail Valley Creek (TVC), Northwest Territories, Canada, which is underlain by continuous permafrost. With the objective to quantify thaw/freeze dynamics of the ground over time, the two study sites (about 50x50 m each) were repeatedly captured in June 2015, August 2015, and August 2016 by terrestrial laser scanning (TLS) and by Real-Time Kinematic (RTK) Global Navigation Satellite System (GNSS) measurements. Additionally, 24 fiberglass poles were anchored deep in the permafrost and, therefore, assumed to be motionless. With these poles, surface displacement was estimated by measuring repeatedly the distance between ground surface and the top of the poles in June 2015, August 2015, July 2016, August 2016 and June 2017. Furthermore, thaw depths were measured around each fiberglass pole. Additionally, one-time GNSS measurements of the ground surface elevation were acquired at a number of points outside of the two study sites.
Related to:
Grünberg, Inge; Wilcox, Evan James; Zwieback, Simon; Marsh, Philip; Boike, Julia (2020): Linking tundra vegetation, snow, soil temperature, and permafrost. Biogeosciences, 17(16), 4261-4279, https://doi.org/10.5194/bg-17-4261-2020
Further details:
Anders, Katharina; Antonova, Sofia; Beck, Inga; Boike, Julia; Höfle, Bernhard; Langer, Moritz; Marsh, Philip; Marx, Sabrina (2018): Multisensor ground-based measurements of the permafrost thaw subsidence in the Trail Valley Creek, NWT, Canada, 2015-2016. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.888566
Maxim Integrated Products, Inc (2015): DS1922L/DS1922T iButton Temperature Loggers with 8KB Datalog Memory, datasheet. available at: https://datasheets.maximintegrated.com/en/ds/DS1922L-DS1922T.pdf (last access: 30 March 2020)
Walker, Donald A; Raynolds, Martha K; Daniëls, Fred J A; Einarsson, Eythor; Elvebakk, Arve; Gould, William A; Katenin, Adrian E; Kholod, Sergei S; Markon, Carl J; Melnikov, Evgeny S; Moskalenko, Natalia G; Talbot, Stephen S; Yurtsev, Boris A; CAVM Team (2005): The Circumpolar Arctic vegetation map. Journal of Vegetation Science, 16(3), 267-282, https://doi.org/10.1111/j.1654-1103.2005.tb02365.x
Project(s):
Coverage:
Median Latitude: 68.745778 * Median Longitude: -133.498464 * South-bound Latitude: 68.739750 * West-bound Longitude: -133.506180 * North-bound Latitude: 68.750160 * East-bound Longitude: -133.486630
Date/Time Start: 2016-08-28T00:00:00 * Date/Time End: 2018-08-22T00:00:00
Minimum ELEVATION: 55.6 m a.s.l. * Maximum ELEVATION: 89.9 m a.s.l.
Event(s):
TrailValleyCreek-iButton021 (T_21) * Latitude: 68.739750 * Longitude: -133.492350 * Date/Time Start: 2016-08-28T00:00:00 * Date/Time End: 2018-08-22T00:00:00 * Elevation: 71.9 m * Location: Northwest Territories, Canada * Campaign: CA-Land_2018_TrailValleyCreek (MOSES, mCan2018) * Basis: AWI Arctic Land Expedition * Method/Device: Temperature recorder (TEMP-R)
TrailValleyCreek-iButton022 (T_22) * Latitude: 68.739920 * Longitude: -133.492890 * Date/Time Start: 2016-08-28T00:00:00 * Date/Time End: 2018-08-22T00:00:00 * Elevation: 72.1 m * Location: Northwest Territories, Canada * Campaign: CA-Land_2018_TrailValleyCreek (MOSES, mCan2018) * Basis: AWI Arctic Land Expedition * Method/Device: Temperature recorder (TEMP-R)
TrailValleyCreek-iButton023 (T_23) * Latitude: 68.740050 * Longitude: -133.493360 * Date/Time Start: 2016-08-28T00:00:00 * Date/Time End: 2018-08-22T00:00:00 * Elevation: 72.3 m * Location: Northwest Territories, Canada * Campaign: CA-Land_2018_TrailValleyCreek (MOSES, mCan2018) * Basis: AWI Arctic Land Expedition * Method/Device: Temperature recorder (TEMP-R)
Comment:
Data quality estimate for the two periods (P1 and P2) analysed by Grünberg et al. (2020). All data was quality checked. If not marked differently, the data series passed their quality check and were used in the analysis. Excluded series are marked separately for each of the analysed periods. Series were excluded for one of the following reasons:
A: too many missing values,
B: summer days exhibited high peaks (potentially influenced by direct solar radiation),
C: summer days were too cold (sensor potentially buried too deep or affected by running water).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Boike, Julia | |||
| 2 | Identification | ID | Boike, Julia | Identifier of iButton | ||
| 3 | LATITUDE | Latitude | Boike, Julia | Geocode | ||
| 4 | LONGITUDE | Longitude | Boike, Julia | Geocode | ||
| 5 | UTM Easting, Universal Transverse Mercator | UTM east | m | Boike, Julia | ||
| 6 | UTM Northing, Universal Transverse Mercator | UTM north | m | Boike, Julia | ||
| 7 | UTM Zone, Universal Transverse Mercator | UTM Zone | Boike, Julia | |||
| 8 | ELEVATION | Elevation | m a.s.l. | Boike, Julia | Geocode | |
| 9 | Active layer depth | ALD | cm | Boike, Julia | Active Layer Thickness (ALT) measured from 2018-08-22 to 2018-08-23 | |
| 10 | Slope | Slope | deg | Boike, Julia | Based on digital elevation model of 10 m spatial resolution | sensor location |
| 11 | Aspect | Aspect | deg | Boike, Julia | Based on digital elevation model of 10 m spatial resolution | sensor location |
| 12 | Vegetation type | Vegetation type | Boike, Julia | Classification by Walker et al. (2005) | ||
| 13 | Vegetation height, maximum | Veg h max | cm | Boike, Julia | within 30 cm distance of the sensor, measured from the 4th to the 6th August 2019 | |
| 14 | Snow thickness | Snow thick | m | Boike, Julia | Measurement on the ground | 2017-04-30 |
| 15 | Snow thickness | Snow thick | m | Boike, Julia | Estimated from airborne data | 2018-04-22 |
| 16 | Quality code | Quality | Boike, Julia | see comment | Data Quality Period 1 | |
| 17 | Quality code | Quality | Boike, Julia | see comment | Data Quality Period 2 | |
| 18 | Uniform resource locator/link to image | URL image | Boike, Julia | Site photo |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
827 data points