remediation project, AUDIO | The ice roads of Northern Canada are disappearing. Please note that CBC does not endorse the opinions expressed in comments. Digital Reporter Monday, March 7, 2016, 10:36 AM - A fuel tanker broke through an ice road in the Northwest Territories Saturday, closing the crossing to all traffic. Duguay, C., L. Brown, K. -K. Kang, and H. Kheyrollah Pour, 2015a: [The Arctic] Lake ice [in "State of the Climate in 2014"]. Dinner at B&B Comfortable Hotel accommodations. ICD for 2017/18 was shorter by up to ~1-4 weeks for Lakes Ladoga and Onega (western Russia) and 2-3 weeks shorter for lakes located in the southernmost part of Finland (ICDs as short as 98 days), northwestern Canada (Great Bear Lake and most of Great Slave and Athabasca lakes) and coastal southwestern Alaska. Du, J., J. S. Kimball, C. R. Duguay, Y. Kim, and J. Watts, 2017: Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015. Despite the later FU on Great Bear Lake, when ice did begin to form, the lake froze over faster than the mean time needed to freeze, freezing over completely in 25 days (vs. 30 days mean). Baijnath-Rodino, J. The department closed the road Saturday night to "let the affected area freeze and allow the department to strengthen the surrounding area with additional flooding.". Lakes located in northeastern Canada and immediately to the west of Hudson Bay experienced FU close to the 2004-17 mean (±1 week earlier or later). The Deline settlement is on the lake, near the headwaters of the Bear River. Effects of persistent Arctic warming continue to mount, Archive of previous Arctic Report Cards >, 1Department of Geography and Environmental Management, University of Waterloo, Canada
With a few exceptions, break-up dates were within ±1 week from the 2004-17 mean across the Arctic. Eerola, K., L. Rontu, E. Kourzeneva, H. Kheyrollah Pour, and C. R. Duguay, 2014: Impact of partly ice-free Lake Ladoga on temperature and cloudiness in an anticyclonic winter situation—a case study using HIRLAM model. For this report, lake ice phenology dates (freeze-up/ice-on and break-up/ice-off dates) and ice cover duration are derived from the NOAA Interactive Multisensor Snow and Ice Mapping System (IMS) 4-km resolution grid daily product for the 2017-18 ice season over the Arctic. Meteorol. Located in the same region, Great Slave Lake froze over completely in 16 days (vs. 36 days mean). It is a priority for CBC to create a website that is accessible to all Canadians including people with visual, hearing, motor and cognitive challenges. 2). Approximately 15,000 4-km pixels are identified as water in the region north of 58° N. Freeze-up (FU) in 2017/18 occurred earlier than the 2004-17 mean by ~1-3 weeks for most of Siberia, Norway, Sweden, and northern Finland. Since BU anomalies were relatively small, the spatial pattern of ice cover duration (ICD) anomalies followed closely that of FU anomalies. For example, in the 2012/13 season, ICD followed the BU anomalies closely (Duguay et al., 2013) (Fig. It's a two-and-a-half hour drive to the nearest community, Tulita. When Danny Gaudet drove his truck out of Deline, N.W.T., he noticed a crack in the ice road. Tellus A, 64, 17614, doi: 10.3402/tellusa.v64i0.17614. 3). Duguay, C. R., M. Bernier, Y. Gauthier, and A. Kouraev, 2015b: Lake and river ice, in Remote Sensing of the Cryosphere. 273-306. GCOS 2016 Implementation Plan. Great Bear Lake boasts the All-Tackle World Records for Lake Trout and Arctic Grayling, as well as dozens of line class records. Recent analyses from satellite records (Šmejkalová et al., 2016; Surdu et al., 2016; Du et al., 2017) reveal that break-up continues to occur earlier in the 21st century for many lakes of the Arctic; a trend that continues to follow that documented from ground-based observations for the second half of the 20th century (Duguay et al., 2006). Tracking recent environmental changes relative to historical records, Conserving and managing our Arctic Ocean resources, Providing weather information to protect lives, property, and management, Observing the Arctic ocean and atmosphere to understand and forecast Arctic change, Providing environmental intelligence to understanding the complex Arctic system, Conserving and managing Arctic living marine resources and their habitats, Arctic Ocean Primary Productivity: The Response of Marine Algae to Climate Warming and Sea Ice Decline, Migratory Tundra Caribou and Wild Reindeer, Clarity and Clouds: Progress in Understanding Arctic Influences on Mid-latitude Weather, Microplastics in the Marine Realms of the Arctic with Special Emphasis on Sea Ice. BU dates occurred within ±1 week of the 2004-17 mean for most of the Arctic (Fig. The river has irregular meander pattern 350-metre (1,150 ft) wide channel with average depth 6 metres (20 ft). There is an ice crossing from Deline to the winter road on the far side of the Great Bear River. Zillow has 99 homes for sale in 84028 matching Bear Lake. Water flows out of the lake into the Great Bear River, then into the Mackenzie River.Other rivers connected to the lake include the Dease, Camsell and Johnny Hoe. Tellus A, 66, 23929. Lake ice phenology, which encompasses freeze-up (ice-on) and break-up (ice-off) dates, and ice cover duration, is predominantly influenced by air temperature changes and, therefore, is a robust indicator of regional climate trends and variability. It was Jan. 26 and the route across Great Bear Lake had just opened. These lakes have shown positive ICD anomalies for 7 of the last 14 ice seasons, with most of the longer ICD anomalies in the past six seasons. Cryosphere, 10, 941-960. 130km winter and ice road drive to Indigenous community of Deline on the Great Bear Lake! View listing photos, review sales history, and use our detailed real estate filters to find the perfect place. Exceptions are some lakes in the Scandinavian Mountains, where ICD was nearly 2 months longer, and Amadjuak and Nettilling lakes (the two largest lakes of Baffin Island). ICD was longer by ~1-2 weeks for most other regions of the Arctic. Lunch and tour of the only community on the Great Bear Lake, Deline 130km winter and ice road drive back to Tulita 89km Drive on frozen Mackenzie River to Norman Wells! Box 500 Station A Toronto, ON Canada, M5W 1E6. Bull. GCOS, 2016: The Global Observing System for climate: Implementation needs, GCOS-200. The pressure will cause the ice to crack, and when the two sides crush together a ridge will form. Bear Lake Road in Rocky Mountain National Park reopened today after being closed since October 22, due to the East Troublesome Fire. These dates are compared to mean conditions for the length of the available satellite records, which begin in 2004. Climatol., 38, 3942-3962. Lake ice is an important component of the cryosphere for several weeks to several months of the year in high-latitude regions. The presence (or absence) of ice cover on lakes during the winter months affects both regional weather and climate (e.g., thermal moderation and lake-induced snowfall) (Brown and Duguay, 2010; Baijnath-Rodino et al., 2018). Jeffries, M. O., K. Morris, and C. R. Duguay, 2012: Floating ice: lake ice and river ice, In Satellite Image Atlas of Glaciers of the World—State of the Earth's Cryosphere at the Beginning of the 21st Century: Glaciers, Global Snow Cover, Floating Ice, and Permafrost and Periglacial Environments, R. S. Williams, Jr., and J. G. Ferrigno, Eds., U.S. Geological Survey Professional Paper 1386-A, A381-A424. FU anomalies of this magnitude were also observed for these lake regions during the 2013/14 ice season (Duguay et al., 2015a). M. Tedesco, Ed., Wiley-Blackwell (Oxford, UK), pp. Ice in some valley lakes in the Scandinavian Mountains range began to form as early as mid-November, which is ~1 month earlier than the mean (Fig. Prog. "He called us and gave us a warning that there's a huge crack in the ice," he said. He knew what he was looking at because he makes ice roads for a living. Located in the same region, Great Slave Lake froze over completely in 16 days (vs. 36 days mean). Ice cover duration anomalies largely mirrored those of freeze-up dates for much of the Arctic. Freeze time for 2017/18 was 36 and 24 days, respectively. All areas and trails east of Bear Lake Road have reopened. It is ice-covered from November through July and its surface was, in earlier times, used as a highway before a road was built around the lake. “John Denison and his crew waited for the coldest, darkest days of winter every year to set out to build a 520-kilometre road made of ice and snow, from Yellowknife in the Northwest Territories to a silver mine on Great Bear Lake, above the Arctic Circle. There is no better fishing in the world. Deline, population 533, is usually the last Sahtu community to be connected by road because contractors have to wait for the ice to thicken along the nine-kilometre Great Bear Lake portion of the crossing. Analyses of records from ground-based observational networks have provided much of the evidence of long-term trends, variability and regime shifts in lake ice phenology.