246 Works

OASIS-CANADA-OOTI TARA: Measurements of ozone during the TARA drift over the Arctic Ocean

Jan Bottenheim & Stoyka Netcheva
A full year of measurements of surface ozone over the Arctic Ocean, far removed from land, is presented (72 to 89 degrees North latitude). The data were obtained during the drift of the French schooner TARA between September 2006 and November 2007, while frozen in the Arctic Ocean. Ozone data were collected with a TEI-049 ozone monitor in a fully automated manner during the TARA drift at 10 seconds intervals. Five-minute averages of quality-controlled ambient...

OASIS-CANADA-OOTI COBRA: Atmospheric composition and structure during the COBRA campaign near Kuujjuarapik/Whapmagoostui, Québec

Jan Bottenheim, Stoyka Netcheva, Ralf Staebler & Alexandra Steffen
Data were compiled in campaign mode and obtained over the ice of the frozen Hudson Bay near Kuujjuarapik/Whapmagoostui, Québec using the OOTI (Out On The Ice) mobile laboratory mounted on a specially manufactured Arctic sled and running on a bank of 12 VDC batteries. Chemical and meteorological variables were collected with state of the art instrumentation, as detailed below. Position: records of location were taken on each new site by hand-held Garmin GPS receiver and...

Long-term monitoring of lemming abundance and reproductive activity on Bylot Island, Nunavut

Gilles Gauthier, Marie-Christine Cadieux &
We monitor lemming abundance and demography using three methods. (1) Dead trapping using snap-traps at 3 sites on the island in mid to late July (since 1993); we cumulate at least 500 trap-nights at each site annually by trapping over periods ranging from 3 to 10 days. (2) Capture-mark-recapture by live trapping animals using Longworth traps on three 7 to 11 ha grids (100 to 144 traps/grid) in wetland (1 grid) and mesic (2 grids)...

Long-term monitoring of breeding activity of Lapland longspur on Bylot Island, Nunavut

Gilles Gauthier, Joël Bêty, Marie-Christine Cadieux &
We are monitoring the nesting activity of Lapland Longspurs and other passerine birds. We find nests opportunistically during other routine work. Nests found are positioned with a GPS and revisited during the breeding period to determine laying date, clutch size, hatching date and fledging success. For a sample of nests, young are banded at the nest, and occasionally adults as well.

Plant primary production and goose grazing impact at Fosheim Peninsula, Ellesmere Island

Canadian Wildlife Service Josée Lefebvre & Canadian Wildlife Service Austin Reed
We sample the production of plants (sedges, grasses, forbs and shrubs) and measure the impact of goose grazing in wetlands and mesic habitat since 2007. In both habitat, 6 new exclosures (1 m x 1 m x 50 cm high) made of chicken wire are installed in late June. At the end of the growing season in early August, we sample plant biomass by removing 20 x 20 cm plots in wetland and 20 x...

Fox population monitoring on Herschel Island

Wildlife Conservation Society Canada Donald Reid & Université Du Québec à Rimouski Dominique Berteaux
We are monitoring the reproductive activity of Arctic and Red Foxes. We find dens through systematic searches throughout our study site. All dens found are positioned with a GPS and revisited several times to identify the species, minimum litter size and collect prey remains and scats to determine the diet. The study was expanded in 2008 to investigate hypotheses concerning the competitive interactions of the two species.

Arthropod monitoring on Herschel Island

Wildlife Conservation Society Canada Donald Reid
Modified Malaise traps are used to capture surface active and low-flying arthropods. Five-trap transects are established in two dominant shorebird foraging habitats that are used during the brood rearing period, i.e. wetlands and dry upland heath (1 transect/habitat), and run continuously from mid-June to early August. In 2009 we ran only 3 traps in a wetland habitat from mid-June to Mid-July. Traps are emptied every 48 hrs. Arthropods collected are classified to order. Some orders,...

Breeding activity of shorebirds on Herschel Island

Wildlife Conservation Society Canada Donald Reid
We are monitoring the nesting activity and density of shorebirds. We find nests through systematic search of 12-ha plots in mesic upland heath and hydric meadow tundra. Many nests are also found opportunistically. Nests found are positioned with a GPS and revisited during the breeding period to determine laying date, clutch size, hatching date and fledging success.

Shorebird surveys conducted to determine habitat types in Queen Elizabeth Islands, Canadian Arctic Archipelago

Jennie Rausch, Vicky Johnston, Jon Bart, Kyle Elliott & Charles Francis
Shorebird surveys were conducted in three parts: 1. Aerial Surveys: Flight height = 30m, Flight speed = 80 km/h. We marked (GPS) locations along the route that were large patches of monotypic habitat (wetlands, uplands: dense vegetation, uplands: sparse vegetation, uplands: shrubs, unvegetated). 2. "Low and slow" Aerial Surveys: Flight height = 10-15m, Flight speed = 40 km/h. Surveys were conducted in large patches of monotypic habitat, particularly wetlands and uplands:dense vegetation. Habitat type was...

Avian predator monitoring at Walker Bay

Douglas Morris
Abundance of avian predator species is determine every two days through visual counts from a vantage point from our arrival at the study until our departure.

2003-2015 Climate Data Main Station, Cape Bounty, Nunavut

Scott Lamoureux
Automated weather station including a shielded air temperature sensor/logger and a tipping bucket rainfall gauge and data logger were used. Measurements were taken at 10 minute or 1 hour intervals. Variables measured: Air temperature (degrees Celsius), Precipitation (mm), Incoming Shortwave Radiation (Kin; W/m2), Relative Humidity (%), Wind Speed (km/h), Wind Direction (mV), Soil Temperature 10 cm (degrees Celsius), Soil Temperature 20 cm (degrees Celsius), Soil Temperature 50 cm (degrees Celsius), Net Radiation (W/m2), Photosynthetically Active...

Environmental data for correlation analysis explaining the abundance of Cryothecomonas

Connie Lovejoy, Mary Thaler, , , Joannie Martin, Karen Scarcella & Yves Gratton
The datasets present new data from microscopic counts and selected nutrient and physical data assembled from the following cruises. Aboard the CCGS Amundsen: ArcticNet Expeditions 2006, 2008, 2009, 2010; International Polar Year (IPY) Circumpolar Flaw Lead Study 2008 and MALINA Project 2009 (French IPY project headed by Dr. M. Babin). Aboard the CCGS Louis St-Laurent: IPY Canada's Three Oceans 2007. Temporal coverage is Feb.-Nov., but varies by year, with the greatest sampling effort in July-Oct....

Zooplankton in lakes and fiords along the northern coastline of Ellesmere Island (Ward Hunt Island observatory)

Warwick Vincent, Patrick Van Hove, Julie Veillette & Louis Létourneau
Zooplankton was sampled from Lake A on 8 June 1999 and Disraeli Fiord on 9 June 1999. At Lake A, a hole was cut through the ice and was kept open for 3 days before zooplankton sampling. A 1-m-long conical plankton net mesh size 100 μm; mouth diameter 20 cm) was used to sample the zooplankton. Duplicate net tows were made sequentially at the following depths: 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 25,...

Protist enumerations from lakes and fiords along the northern coastline of Ellesmere Island (Ward Hunt Island observatory)

Warwick Vincent, Sophie Charvet & Julie Veillette
Protist samples were taken using a 6.2 L Kemmerer sampler, transferred to acid-washed, opaque 20 L plastic containers and stored in the dark at 4°C until processing. They were preserved with paraformaldehyde (0.1% final concentration) and glutaraldehyde (1% final concentration) in duplicate 50 mL polypropylene centrifuge tubes and stored at 4°C for up to 6 months in the dark until analysis; cellular features were well preserved and showed no evidence of degradation during storage. Protists...

2008 Experimental Catchment Snow Survey (depth and density) Measurements, Cape Bounty Melville Island

Melissa Lafreniere
A total of eight 15 m long fences and two 30 m fences were added to the PX1 catchment, and four 15 m length snow fences were installed in the PX4 catchment. The snow fence was 1.2 m in height and consisted of orange plastic with an oriented oval grid design that provided 50% porosity (Quest Plastics Limited, Canada). Snow depth was measured every 25 m and density was measured every 50 m. A 100...

Key Areas for Birds in the coastal regions of the Canadian Beaufort Sea

Myra Robertson, & Ross Harris
The Beaufort Sea region provides marine and coastal habitat for hundreds of thousands of migrating, breeding, and molting birds. Alexander et al. (1988) published an atlas of the region that summarized avian distribution and abundance along the Canadian Beaufort coastline, and evaluated the regional importance of specific areas to birds. This project provides an update to that original atlas, and it expands the geographical scope to include Banks, Prince Patrick, and Eglinton islands, and the...

Nitrogen 15 abundances of Alnus incana and Picea mariana

Frank Berninger & Sandrine Gauthier Ethier
We sampled the nitrogen abundances in black spruce and alder trees around the ski hill in Schefferville, Quebec. Nitrogen concentrations and the abundances of 15N were measured from leaves of Alnus, as well as the leaves of black spruce in the vicinity and larger distances from the Alnus samples.

Colour-shaded seafloor relief, Kumak Channel 2010, Mackenzie Delta, Beaufort Sea, offshore northern Canada

Dustin Whalen
The data set is an image of colour-shaded sun-illuminated seafloor topography collected from Kumak Channel in the Mackenzie Delta in the Beaufort Sea in 2010 by the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a SwathPlus Interferometric Sidescan system on Geological Survey of Canada (Atlantic), Multibeam Expedition, Beaufort Explorer 2010305. These data were collected using Differential Global Positioning System (DGPS) which determines the position of the vessel with an accuracy of 3...

Colour-shaded seafloor relief, Tuktoyaktuk Harbour 2004, 2005, 2006 and 2009, Beaufort Sea, offshore northern Canada

Dustin Whalen &
This data set is an image of colour-shaded sun-illuminated seafloor topography collected in Tuktoyaktuk Harbour in the Beaufort Sea in 2004, 2005, 2006 and 2009 by the Canadian Hydrographic Service (CHS) for the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a Simrad EM3000 system on Geological Survey of Canada (Atlantic), Multibeam Expeditions, Nahidik 2004802, Nahidik 2005802, Nahidik 2006305 and Nahidik 2009802. Depth readings are accurate to within 30 cm in water depths...

Colour-shaded seafloor relief, strudel scours 2007-2009, Mackenzie Delta, Beaufort Sea, offshore northern Canada

Dustin Whalen
The data set is an image of colour-shaded sun-illuminated seafloor topography collected in teh nearshore region of the Mackenzie Delta in the Beaufort Sea in 2007 by the Geological Survey of Canada (Atlantic) (GSCA). Data were collected with a SwathPlus Interferometric Sidescan system on Geological Survey of Canada (Atlantic), Multibeam Expedition, Beaufort Explorer 2007306. Depth readings are accurate to within 30 cm in water depths less than 30 m and 1% of water depth in...

Cliff top, Clarence Lagoon 1976-1996, Ivvavik National Park, Yukon, northern Canada

Sheila Hynes, Donald L. Forbes & Dustin Whalen
Field work and airphoto studies were undertaken between 1953-1996 along the Yukon coast of the Beaufort Sea in Ivvavik National Park to determine coastal erosion rates, processes and hazards in relation to archeological and cultural heritage sites, many of which are concentrated along the coast in this region. The work was carried out on behalf of Parks Canada (Canadian Heritage, Western Arctic District, Inuvik) at Niakolik Point, Stokes Point, Catton Point/Ptarmigan Bay, Nunaluk Spit and...

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