Overduin, Pier Paul; Ryberg, Trond; Haberland, Christian; Erkens, Ephraim (2022): Lacustrine and amphibian ERT surveys acquired in the region of Inuvik, Northwest Territories, Canada [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949512, 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
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
This dataset contains seven Electrical Resistivity Tomography (ERT) profiles taken in September 2021 at “Lake 3”, a thermokarst lake near the Inuvik-Tuktoyaktuk-Highway (ITH), about 50 km north of Inuvik (NWT, Canada). The measurements were part of the “Mackenzie Delta Permafrost Field Campaign” (mCan2021) within the “Modular Observation solutions for Earth Systems” (MOSES) program. The collected profiles consist of numerous adjacent vertical soundings in a (quasi-symmetric) reciprocal Wenner-Schlumberger array. In addition to surveys on the lake, using a floating cable towed behind a boat, two “amphibian” profiles were taken. Starting as purely terrestrial surveys using metal spike electrodes, the cable was then moved towards the lake with some of the electrodes floating on the water surface, and some still on land. The aim of the study was to determine permafrost properties on the land, to detect a possible talik beneath the lake and to especially be able to infer the transition between the two below the shoreline.
Further details:
Project(s):
Permafrost Research (AWI_Perma)
Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)
Coverage:
Median Latitude: 68.776292 * Median Longitude: -133.540252 * South-bound Latitude: 68.775362 * West-bound Longitude: -133.541767 * North-bound Latitude: 68.777091 * East-bound Longitude: -133.539027
Date/Time Start: 2021-09-18T00:00:00 * Date/Time End: 2021-09-23T22:28:34
Event(s):
CA-Land_2021_NWCanada_ERT-L3 * Latitude: 68.776200 * Longitude: -133.540000 * Date/Time Start: 2021-09-18T00:12:00 * Date/Time End: 2021-09-23T22:26:00 * Location: Lake 3 * Campaign: CA-Land_2021_NWCanada (MOSES 2021, mCan2021) * Basis: AWI Arctic Land Expedition * Method/Device: Electrical resistivity tomography (ERT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | ORDINAL NUMBER | Ord No | Overduin, Pier Paul | Geocode | ||
| 2 | DATE/TIME | Date/Time | Overduin, Pier Paul | Geocode – UTC | ||
| 3 | Profile | Profile | Overduin, Pier Paul | index ascending from north to south | ||
| 4 | Distance, relative | Dist rel | m | Overduin, Pier Paul | of profile, cumulated distances between soundings | |
| 5 | DEPTH, water | Depth water | m | Overduin, Pier Paul | Geocode | |
| 6 | Distance, relative | Dist rel | m | Overduin, Pier Paul | to water depth | |
| 7 | LATITUDE | Latitude | Overduin, Pier Paul | Geocode – of the cable center | ||
| 8 | LONGITUDE | Longitude | Overduin, Pier Paul | Geocode – of the cable center | ||
| 9 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 1 |
| 10 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 2 |
| 11 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 3 |
| 12 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 4 |
| 13 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 5 |
| 14 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 6 |
| 15 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 7 |
| 16 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 8 |
| 17 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 9 |
| 18 | Resistivity, apparent | Resistivity app | Ohm m | Overduin, Pier Paul | Electrical resistivity tomography (ERT) | Rho 10 |
| 19 | Position | Position | m | Overduin, Pier Paul | of current electrode C1 | |
| 20 | Position | Position | m | Overduin, Pier Paul | of current electrode C2 | |
| 21 | Position | Position | m | Overduin, Pier Paul | of potential electrode P1 | |
| 22 | Position | Position | m | Overduin, Pier Paul | of potential electrode P2 | |
| 23 | Position | Position | m | Overduin, Pier Paul | of potential electrode P3 | |
| 24 | Position | Position | m | Overduin, Pier Paul | of potential electrode P4 | |
| 25 | Position | Position | m | Overduin, Pier Paul | of potential electrode P5 | |
| 26 | Position | Position | m | Overduin, Pier Paul | of potential electrode P6 | |
| 27 | Position | Position | m | Overduin, Pier Paul | of potential electrode P7 | |
| 28 | Position | Position | m | Overduin, Pier Paul | of potential electrode P8 | |
| 29 | Position | Position | m | Overduin, Pier Paul | of potential electrode P9 | |
| 30 | Position | Position | m | Overduin, Pier Paul | of potential electrode P10 | |
| 31 | Position | Position | m | Overduin, Pier Paul | of potential electrode P11 | |
| 32 | Quality flag | QF | Overduin, Pier Paul | for Rho 1 (1: data can be used, 0: | ||
| 33 | Quality flag | QF | Overduin, Pier Paul | for Rho 2 (1: data can be used, 0: data should be excluded) | ||
| 34 | Quality flag | QF | Overduin, Pier Paul | for Rho 3 (1: data can be used, 0: data should be excluded) | ||
| 35 | Quality flag | QF | Overduin, Pier Paul | for Rho 4 (1: data can be used, 0: data should be excluded) | ||
| 36 | Quality flag | QF | Overduin, Pier Paul | for Rho 5 (1: data can be used, 0: data should be excluded) | ||
| 37 | Quality flag | QF | Overduin, Pier Paul | for Rho 6 (1: data can be used, 0: data should be excluded) | ||
| 38 | Quality flag | QF | Overduin, Pier Paul | for Rho 7 (1: data can be used, 0: data should be excluded) | ||
| 39 | Quality flag | QF | Overduin, Pier Paul | for Rho 8 (1: data can be used, 0: data should be excluded) | ||
| 40 | Quality flag | QF | Overduin, Pier Paul | for Rho 9 (1: data can be used, 0: data should be excluded) | ||
| 41 | Quality flag | QF | Overduin, Pier Paul | for Rho 10 (1: data can be used, 0: data should be excluded) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
12060 data points
Download Data
View dataset as HTML (shows only first 2000 rows)