Influence of river ice break-up on stream hydraulics and sediment transport

2014 ◽  
pp. 951-959 ◽  
Author(s):  
S Zare ◽  
S Moore ◽  
C Rennie ◽  
O Seidou ◽  
H Ahmari
Keyword(s):  
Sediment Transport ◽  
River Ice ◽  
Stream Hydraulics ◽  
Break Up

Effects of river ice break‐up on organic‐matter dynamics and feeding ecology of aquatic insects

2020 ◽  
Vol 36 (3) ◽  
pp. 480-491
Author(s):  
Ryan J. Blackadar ◽  
Colden V. Baxter ◽  
John M. Davis ◽  
Hannah E. Harris
Keyword(s):  
Organic Matter ◽  
Feeding Ecology ◽  
Aquatic Insects ◽  
River Ice ◽  
Organic Matter Dynamics ◽  
Break Up

Trends in River-Ice Break-up Data for the Western James Bay Region of Canada

2005 ◽  
Vol 29 (4) ◽  
pp. 291-299 ◽  
Author(s):  
Elise Ho ◽  
Leonard J. S. Tsuji ◽  
William A. Gough
Keyword(s):  
River Ice ◽  
James Bay ◽  
Break Up

Influence of the proposed Site C hydroelectric project on the ice regime of the Peace River

2015 ◽  
Vol 42 (9) ◽  
pp. 645-655 ◽  
Author(s):  
Martin Jasek ◽  
Amy Pryse-Phillips
Keyword(s):  
Clean Energy ◽  
Ice Cover ◽  
Water Levels ◽  
River Ice ◽  
Hydroelectric Project ◽  
Peace River ◽  
Ice Conditions ◽  
Break Up ◽  
Hydro Project ◽  
The Town

The objectives of the study were to describe the existing ice conditions in the Peace River and to predict changes as a result of the proposed Site C Clean Energy Project (the Project). The analyses of changes due to the Project were conducted using the CRISSP and PRTIGM models. Sixteen winters were simulated to provide a representative range of meteorological conditions on which to base the conclusions of the study. Potential changes are described in terms of the following ice characteristics: maximum upstream extent of ice cover; timing of ice cover formation and break-up; freeze-up and break-up water levels at the Town of Peace River; ice thickness; changes in ice conditions relevant for river ice crossings. The analyses also included predicting changes in these ice characteristics due to the combined influence of the Project and the proposed Dunvegan Hydro Project in Alberta. Two future climate scenarios were also considered.

Ecological effects of river ice break-up: a review and perspective

1994 ◽  
Vol 32 (2) ◽  
pp. 261-275 ◽  
Author(s):  
GARRY J. SCRIMGEOUR ◽  
TERRY D. PROWSE ◽  
JOSEPH M. CULP ◽  
PATRICIA A. CHAMBERS
Keyword(s):  
Ecological Effects ◽  
River Ice ◽  
Break Up

Historical trends in river-ice break-up: a review

2004 ◽  
Vol 35 (4-5) ◽  
pp. 281-293 ◽  
Author(s):  
Terry D. Prowse ◽  
Barrie R. Bonsal
Keyword(s):  
Large Scale ◽  
River Ice ◽  
Historical Trends ◽  
Southern Limit ◽  
The North ◽  
Air Temperatures ◽  
Circulation Patterns ◽  
Northern Regions ◽  
Break Up ◽  
Air Temperature Variations

Over most northern regions, break-up is primarily a spring event. Historical evidence, however, has shown that the timing of river-ice break-up has been shifting in many areas of the Northern Hemisphere and these shifts were associated with observed air temperatures during the break-up period. This paper reviews past trends in break-up from the Eurasian and North American circumpolar regions and synthesizes them into a regional and temporal context. It also evaluates various hydro-climatic explanations for these trends including associations with winter/spring air temperature variations and relationships to large-scale circulation patterns. Even more dramatic changes to break-up timing and magnitude are forecast to occur as the result of climate change. Insights toward future break-up conditions are discussed for two broad-scale regions: the North, a region forecast to experience the most pronounced warming, and the southern limit of the cold regions, a zone of particular cryospheric sensitivity to warming.

scholarly journals River predisposition to ice jams: a simplified geospatial model

2016 ◽  
Author(s):  
Stéphane De Munck ◽  
Yves Gauthier ◽  
Monique Bernier ◽  
Karem Chokmani ◽  
Serge Légaré
Keyword(s):  
Local Knowledge ◽  
False Positive ◽  
False Negative ◽  
River Channel ◽  
Geospatial Data ◽  
River Ice ◽  
Main Question ◽  
Ice Jams ◽  
Ice Jam ◽  
Break Up

Abstract. The goal of this work was to develop a simplified geospatial model to estimate the predisposition of any river channel to ice jams. Rather than predicting river ice break up, the main question here was to predict where the broken up ice is susceptible to jam based on the river’s geomorphological characteristics. Thus, six parameters referred to potential causes for ice jams in the literature were selected: presence of an island, narrowing of the channel, high sinuosity, presence of a bridge, confluence of rivers, and slope break. A GIS-based tool has been used to generate the aforementioned factors over regular-spaced segments along the entire channel using available geospatial data. An "Ice Jam Predisposition Index" (IJPI) was calculated by combining the weighted optimal factors. Three Canadian rivers (Province of Quebec) have been chosen as test sites. The resulting maps were assessed from historical observations and local knowledge. Results show 77 % of the observed ice jam sites on record occurred in river sections that the model considered as having high or medium predisposition. This leaves 23 % of false negative errors (missed occurrence). Between 7 % and 11 % of the highly "predisposed" river sections did not have an ice jam on record (false-positive errors). Potential improvements are discussed.

scholarly journals A Canadian River Ice Database from the National Hydrometric Program Archives

2020 ◽  
Vol 12 (3) ◽  
pp. 1835-1860 ◽  
Author(s):  
Laurent de Rham ◽  
Yonas Dibike ◽  
Spyros Beltaos ◽  
Daniel Peters ◽  
Barrie Bonsal ◽  
...  
Keyword(s):  
Water Level ◽  
Hydrological Cycle ◽  
Open Water ◽  
Cold Climate ◽  
River Ice ◽  
Ice Thickness ◽  
Original Research ◽  
Data Set ◽  
Spring Break ◽  
Break Up

Abstract. River ice, like open-water conditions, is an integral component of the cold-climate hydrological cycle. The annual succession of river ice formation, growth, decay and clearance can include low flows and ice jams, as well as midwinter and spring break-up events. Reports and associated data of river ice occurrence are often limited to single locations or regional assessments, are season-specific, and use readily available data. Within Canada, the National Hydrometric Program (NHP) operates a network of gauging stations with water level as the primary measured variable to derive discharge. In the late 1990s, the Water Science and Technology Directorate of Environment and Climate Change Canada initiated a long-term effort to compile, archive and extract river-ice-related information from NHP hydrometric records. This data article describes the original research data set produced by this near 20-year effort: the Canadian River Ice Database (CRID). The CRID holds almost 73 000 recorded variables from a subset of 196 NHP stations throughout Canada that were in operation within the period 1894 to 2015. Over 100 000 paper and digital files were reviewed, representing 10 378 station years of active operation. The task of compiling this database involved manual extraction and input of more than 460 000 data entries on water level, discharge, ice thickness, date, time and data quality rating. Guidelines on the data extraction, rating procedure and challenges are provided. At each location, time series of up to 15 variables specific to the occurrence of freeze-up and winter-low events, midwinter break-up, ice thickness, spring break-up, and maximum open-water level were compiled. This database follows up on several earlier efforts to compile information on river ice, which are summarized herein, and expands the scope and detail for use in Canadian river ice research and applications. Following the Government of Canada Open Data initiative, this original river ice data set is available at https://doi.org/10.18164/c21e1852-ba8e-44af-bc13-48eeedfcf2f4 (de Rham et al., 2020).

scholarly journals A Canadian River Ice Database from National Hydrometric Program Archives

2020 ◽  
Author(s):  
Laurent de Rham ◽  
Yonas Dibike ◽  
Spyros Beltaos ◽  
Daniel Peters ◽  
Barrie Bonsal ◽  
...  
Keyword(s):  
Water Level ◽  
Cold Climate ◽  
River Ice ◽  
Original Research ◽  
Measured Variable ◽  
Data Set ◽  
Spring Break ◽  
Break Up ◽  
The Government ◽  
Government Of Canada

Abstract. River ice is a common occurrence in cold climate hydrological systems. The annual cycle of river ice formation, growth, decay and clearance can include low flows and ice jams, as well as mid-winter and spring break-up events. Reports and associated data on river ice occurrence are often limited to site and season-specific studies. Within Canada, the National Hydrometric Program (NHP) operates a network of gauging stations with water level as the primary measured variable to derive discharge. In the late 1990s, the Water Science and Technology Directorate of Environment and Climate Change Canada initiated a long-term effort to compile, archive and extract river ice related information from NHP hydrometric records. This data article describes the original research data set produced by this near 20-year effort: the Canadian River Ice Database (CRID). The CRID holds almost 73,000 variables from a network of 196 NHP stations throughout Canada that were in operation within the period 1894 to 2015. Over 100,000 paper and digital files were reviewed representing 10,378 station-years of active operation. The task of compiling this database involved manual extraction and input of more than 460,000 data entries on water level, discharge, date, time and data quality rating. Guidelines on the data extraction, rating procedure and challenges are provided. At each location, a time series of up to 15 variables specific to the occurrence of freeze-up and winter-low events, mid-winter break-up, ice thickness, spring break-up and maximum open-water level were compiled. This database follows up on several earlier efforts to compile information on river ice, which are summarized herein, and expands the scope and detail for use in Canadian river ice research and applications. Following the Government of Canada Open Data initiative, this original river ice data set is available at: https://doi.org/10.18164/c21e1852-ba8e-44af-bc13-48eeedfcf2f4 (de Rham et al., 2020).

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