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We have found 480 datasets for the keyword "avant tout". You can continue exploring the search results in the list below.
Datasets: 104,589
Contributors: 42
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480 Datasets, Page 1 of 48
ORV Trail plans - 50k
Off Road Vehicle (ORV) Trail Plan show the trails (whether individually or by zone) within the off-road vehicle management area or the part of the off-road vehicle management area for which a trail plan is developed, on which an off-road vehicle may be used. A red, yellow, green scheme is used to symbolize the level of restriction on the trail plan. Red: off road vehicles are prohibited; Yellow: off road vehicles are prohibited except where designated by an approved Off Road Management Area Trail Plan; Green: off road vehicles are not prohibitedDistributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@gov.yk. ca](mailto:geomatics.help@yukon.ca)
Fire Burn Severity - Same Year
This layer is the current fire year burn severity classification for large fires (greater than 100 ha). Burn severity mapping is conducted using best available pre- and post-fire satellite multispectral imagery acquired by the MultiSpectral Instrument (MSI) aboard the Sentinel-2 satellite or the Operational Land Imager (OLI) sensor aboard the Landsat-8 and 9 satellites. Every attempt is made to use cloud, smoke, shadow and snow-free imagery that was acquired prior to September 30th. However, in late fire seasons imagery acquired after September 30th may be used. This layer is considered an interim product for the 1-year-later burn severity dataset (WHSE_FOREST_VEGETATION.VEG_BURN_SEVERITY_SP). Mapping conducted during the following growing season benefits from greater post-fire image availability and is expected to be more representative of tree mortality. #### Methodology: • Select suitable pre- and post-fire imagery or create a cloud/snow/smoke-free composite from multiple images scenes • Calculate normalized burn severity ratio (NBR) for pre- and post-fire images • Calculate difference NBR (dNBR) where dNBR = pre NBR – post NBR • Apply a scaling equation (dNBR_scaled = dNBR*1000 + 275)/5) • Apply BARC thresholds (76, 110, 187) to create a 4-class image (unburned, low severity, medium severity, and high severity) • Mask out water bodies using a satellite-derived water layer • Apply region-based filters to reduce noise • Confirm burn severity analysis results through visual quality control • Produce a vector dataset and apply Euclidian distance smoothing
Geological map of Canada, 1:5 000 000
The map displays bedrock formations at or near the surface of the land, on the sea floor above the continental crust that forms the Canadian landmass, and oceanic crust surrounding the landmass. The bedrock units are grouped and coloured according to geological age and composition. The colours of offshore units and oceanic crust are paler and more generalized than those on land, although the constituent units offshore are still easily discernible from their dashed boundaries. This colour design, coupled with the use of a white buffer zone at the coast allows the coastline of Canada to be readily distinguished and still show the grand geological architecture of the Canadian landmass.The map also shows major faults that have disrupted the Earth's crust, onshore and offshore, and a variety of special geological features such as kimberlite pipes, which locally contain diamonds, impact structures suspected to have been caused by meteorites, and extinct and active spreading centres in the surrounding oceans.
Guide to the consumption of freshwater sport fish
This theme, which lists more than 1,400 fishing sites in Quebec and nearly forty fish species, provides information on the consumption of sport fishing fish according to species and their size. The number of meals is determined on a monthly basis by calculating that one meal is equivalent to a portion of 230 grams before cooking (8 ounces) of freshwater fish caught in Quebec.The main factors in determining the degree of contamination of the flesh of fish caught in a given location are the species and the size: small, medium and large. The recommendations in the data layer take into account both of these factors.The rules presented in it are intended to warn against the risks associated with the consumption of fish in the long term. They are particularly relevant for people who are in the habit of consuming fish frequently. They are valid at all times, unless otherwise advised by public health officials in your area.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**
Canadian National Marine Seismic Data Repository
The Geological Survey of Canada (Atlantic and Pacific) has collected marine survey field records on marine expeditions for over 50 years. This release makes available the results of an ongoing effort to scan and convert our inventory of analog marine survey field records (seismic, sidescan and sounder) to digital format. These records were scanned at 300 dpi and converted into JPEG2000 format. Typically, each of these files was between 1 to 2 gbyte in size before compression and compressed by a factor of 10:1. Empirical tests with a number of data sets suggest that there is minimal visual distortion of the scanned data at this level of compression. In this KML file, scanned data are available in a reduced-scale thumbnail format and a compressed full-resolution JPEG2000 format.
Quartz mining licences - 50k
Major hard rock mining project in Yukon requires a detailed environmental and socio-economic assessment and various regulatory approvals. These approvals include, but are not limited to a Water Licence and a Quartz Mining Licence.A project must go through two distinct stages before mining activity can commence. First, an assessment determines whether significant adverse environmental or socio-economic effects are likely to occur. Second, a regulatory licensing approval process needs to take place.This data represents the location of Quartz Mining Licence in Yukon.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)
Boundaries of former municipalities
Boundaries of the former municipalities of the City of Rouyn-Noranda before themergers**This third party metadata element was translated using an automated translation tool (Amazon Translate).**
ORV Management areas - 250k
ORV management areas are designate areas where off-road vehicle use is managed for the protection of ecological balance or physical characteristics within the area, including on mineral claims and in territorial parks. Off-road vehicle management areas can result from recommendations coming out of public planning processes, such as regional land-use planning, local area planning and special management areas such as Habitat Protection areas or parks. Governments and other groups, such as the Fish and Wildlife Management Boards and Renewable Resource Councils can submit a proposal that identifies ecologically-sensitive areas that off-road vehicle management areas could protect.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)
Timber harvest plans - 50k
The purpose of this feature class is to identify those areas that are in the process of Timber Harvest Planning, process being a continuum from proposed plan through to approval and eventually plan expiration. Subsection 20(3) of the Forest Resources Act establishes that an approved Timber Harvest Plan is required prior to the authorization of timber harvesting under a Harvesting Licence or authorization of a Forest Resources Permit for non-commercial timber harvesting in an amount greater than 25m3 per year. A Timber Harvest Plan:• Must be developed in accordance with Sections 5 through 7 of the Forest Resources Regulation. • Identifies forest resources in the area and areas suitable for timber harvesting and establishes objectives for timber harvesting.• Must be consistent with any Forest Resources Management Plan that applies to the same area.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)
Fire Ignition Locations
This is point GIS coverage consisting of either fire ignition locations or centroids of fire polygons where the exact location of fire ignition were unknown for fires within the Yukon, spanning a period from 1946 to present. Although the temporal scale of the coverage goes back to late 1940's, Yukon-wide fire detection capability was not fully developed until the 1960's. In addition to this, access to regular aerial mapping was not readily available until that same time period. As a result many fires in the 40's and 50's were simply not recorded or poorly mapped, particularly in the north. For that reason, care must be taken when drawing conclusions from these data as it relates to the early years. Starting 2020 on the data was automatically updated using iFMS.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)
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