Shallow (12 cm) ground temperatures for 7 ice-wedge troughs and 2 polygon centres in a high-centred polygon system in Fosheim Peninsula, Ellesmere Island, Nunavut, Canada
Near surface ground temperatures were collected at the centre of 7 ice-wedge troughs and 2 polygon centres using iButton thermochron temperature sensors. Each sensor was buried at 12 cm depth in a weather proof case. Ice-wedge troughs within this study had varying dimensions and are as followed: IW1...
| Main Authors: | , , |
|---|---|
| Format: | Dataset |
| Language: | unknown |
| Published: |
Canadian Cryospheric Information Network
2020
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.21963/13135 https://www.polardata.ca/pdcsearch?doi_id=13135 |
| Summary: | Near surface ground temperatures were collected at the centre of 7 ice-wedge troughs and 2 polygon centres using iButton thermochron temperature sensors. Each sensor was buried at 12 cm depth in a weather proof case. Ice-wedge troughs within this study had varying dimensions and are as followed: IW1 was 2.00 m wide and 0.25 m deep, IW2 was 6.00 m wide and 0.82 m deep, IW3 was 11.00 m wide and 1.00 m deep, IW4 was 9.00 m wide and 0.85 m deep, IW5 9.00 m and 0.57 m deep, IW6 was 6.00 m wide and 0.42 m deep and finally, IW7 was 6.00 m wide and 0.37 m deep. P1 was the centre of a polygon with an area of 270 m^2, P2 was 266 m^2. Our study (Ward Jones et al., in review) found that geomorphic changes caused by degrading ice-wedge generated new responses in vegetation cover, soil moisture and snow distribution. These new interactions generated a range of ground temperatures between all our sites: a 5.1 °C range annually, 2.5 °C in summer and 15.2 °C in winter. Note that P1, IW1, IW2, IW3 was set up initially on 3 July, 2017. IW4, IW5, IW6 and IW7 were added the following week on 13 July, 2017. P2 was added on 16 August, 2017. Mean daily air temperature collected by the Eureka Weather Station (http://climate.weather.gc.ca/climate_data/daily_data_e.html?StationID=50737) is also included. Please refer to Ward Jones et al. (in review) for more details on this study. |
|---|