Ice Loads on Dams

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Taraldsvikfossen Reservoir

An ice cover grew across the reservoir from 20 to 23 Oct 2017. Stress cells at stations E and F were installed on 23 Oct 2017, cells at station A were still in place from the season prior.

Three measurement stations were installed at the dam. Station F has one pressure cell installed, while Stations A and E have four cells each. The naming scheme corresponds to the season 2016/17. Load reducers were applied to Stations E and F.

Measurement stations mounted at the dam. Photo taken during snow fall on 17 Jan 2016.
Measurement station design at the dam, Season 2014/15.

Measurements

Current measurements are available as Excel 2007 spreadsheet Taraldsvik_consolidated_data.xlsx.

Recent measurements:

  • Battery Voltage: 13.7 V (05 Oct 2018, 07:05 CET)
  • Air Temperature: 1.9 °C (05 Oct 2018, 07:05 CET)
  • Water Temperature at 1.3 m: 2.3 °C (05 Oct 2018, 07:05 CET)

Estimated Line Load due to ice pressure at the dam, not quality controlled. (interactive figure, png, pdf)

Stresses and Temperatures

Sensors at the dam

Pressure sensor data at Station A. A1 is at the top. (interactive figure, png)
Pressure sensor data at Station E. E1 is at the top. (interactive figure, png)
Pressure sensor data just below original water level. (interactive figure, png)
Pressure sensor temperatures at Station A. A1 is at the top. (interactive figure, png)
Pressure sensor temperatures at Station E. E1 is at the top. (interactive figure, png)
Pressure sensor temperatures just below original water level. (interactive figure, png)
Water level above normal, air temperature, and temperature of the water level sensor (approx. 1.35 m below water level). (interactive figure, png, pdf)

Overview cameras

Taraldsvikfossen Reservoir
20 Sep 2018Norut Narvik

Taraldsvikfossen Reservoir

Taraldsvikfossen Rerservoir
02 Mar 2018Norut Narvik

Taraldsvikfossen Reservoir

Summary Data

Summary of ice formation and break-up

Click on dates in table below to watch timelapse movies.
TaraldsvikfossenTjårdavatnetIptojávriKalhovdfjorden
2013 break-up 18-22 May- - -
2013 ice formation17 Oct 19 Nov - -
2014 break-up 24-29 May7-20 Jun- -
2014 ice formation12 Oct 5 Nov 10-27 Oct -
2015 break-up 29 May-3 Jun1-19 Jul29 Jun-5 Jul -
2015 ice formation12 Nov 21 Nov 16 Nov -
2016 break-up14-17 May early Jun 26 May-1 Jun -
2016 ice formation16 Oct 23 Nov 3 Nov 3 Nov
2017 break-up25 May-8 Jun 10 Jun-3 Jul 6-16 Jun mid May
2017 ice formation23 Oct - - 14 Nov
2018 break-up8-16 May - - -
2018 ice formation. . . .
An early ice cover at Taraldsvikfossen broke up in October 2015 before the final ice cover formed on 12 Nov 2015. The 2016 water level was too low in Tjårdavatnet during break-up to determine the break-up date from the camera vantage point. Based on satellite images, the estimate would be around 8 June 2016. The 2017 water level was low in Kalhovdfjorden and significant snow cover in the field of view obsured the view of the ice. However, break-up was pretty much complete by 30 May 2017.

 

Timelapse of Ice Seasons

Processed Data of Previous Years

Taraldsvikfossen data recorded in previous seasons are available here (Excel 2007 files, 30 to 100 MB each):

References

  1. O'Sadnick, M., C. Petrich, B. Arntsen, and B. Sand (2016). Observations of Ice Stress at Taraldsvikfossen Reservoir, Narvik, Norway. In Proceedings of the 23rd IAHR International Symposium on Ice, Ann Arbor, Michigan, USA, 31 May to 3 June 2016.
  2. O'Sadnick, M., C. Petrich, B. Arntsen, and B. Sand (2016). One Year of Timelapse Photography at Two Norwegian Reservoirs- Observations and Recommendations for Future Field Campaigns to Monitor Ice Stress. In Proceedings of the 23rd IAHR International Symposium on Ice, Ann Arbor, Michigan, USA, 31 May to 3 June 2016.
  3. Petrich, C., I. Sæther, B. Sand, and B. Arntsen (2016). Comparing field data with numerical simulations of ice loads on dams. In Proceedings of the 23rd IAHR International Symposium on Ice, Ann Arbor, Michigan, USA, 31 May to 3 June 2016.
  4. Petrich, C., I. Sæther, L. Fransson, B. Sand, and B. Arntsen (2015). Time-dependent spatial distribution of thermal stresses in the ice cover of a small reservoir. Cold Regions Science and Technology, 120, 35-44, http://dx.doi.org/10.1016/j.coldregions.2015.09.003.
  5. Petrich, C., I. Sæther, L. Fransson, B. Sand, and B. Arntsen (2014). Preliminary results from two years of ice stress measurements in a small reservoir, In Proceedings of the 22nd IAHR International Symposium on Ice, Singapore, 11–15 August 2014, A. W.-K. Law (ed), NEWRI Nanyang Technological University, Singapore. 452-459. doi:10.3850/978-981-09-0750-1_1191 (pdf)

NRK Nordland reported on 25 Feb 2015: NRK TV

Raw Data

Measurements are currently available as xlsx file that can be opened with MS Office 2007 or later, MS Office Excel viewer, or Libre Office.

The mapping file 1187_data_map.xml describes the pertinent measurements.

About Norut

Norut (Northern Research Institute) is a Norwegian research group that produces knowledge with practical applicability relevant to the High North within technology and social science. We carry out research commissions for both private and public sectors.

About ColdTech

ColdTech is a project to develop and apply competence in Cold Climate Technology to the benefit of northern Norway. ColdTech is hosted by Norut Narvik and Narvik University College.

Get in Touch

  • Phone:
    +47 76 96 53 50
  • Email:
    info@tek.norut.no
  • Address:
    Norut Narvik
    Rombaksveien 47
    8517 Narvik, Norway


Copyright 2014-2017 Norut Narvik. All Rights Reserved. Data are provided as available and without warranties of fitness for any particular purpose.