Mapping
Description
Use this map to make decisions about travel in avalanche terrain. Winter travel is inherently dangerous including changing weather and snow conditions on the day of travel. Digital maps are not a replacement for evaluating avalanche terrain in the field.
- Using a mouse: Zoom in and out with the scroll wheel. Move center point of the map by clicking and dragging. Hold the ‘CONTROL’ key while dragging the mouse to change pitch and bearing
- Using a touch screen: Zoom in and out by pinching with two fingers. Move the center point by holding 1 finger down and dragging. Control pitch by dragging two fingers up or down. Change bearing by using two fingers in a twisting motion
The Avalanche Terrain Exposure Scale (ATES) is an avalanche terrain classification system developed in Canada to simplify assessment of avalanche terrain. ATES uses a five step scale to describe avalanche terrain exposure:
The ATES rating is determined based on 8 avalanche terrain characteristics which are outlined in the ATESv2.0 technical model (below).The ATES ratings shown on the web map are created using an automated computer based approach, which uses GIS models to classify the terrain based proximity and exposure to avalanche start zones, runout zones, and the local forest characteristics. Due to the nature of the computer modelling used to create these maps, it is possible that errors could occur due to inaccuracies in input data or model calculations. This automated ATES map is not intended to replace field based avalanche terrain assessment, and we recommend winter backcountry users take part in avalanche education courses to learn avalanche terrain recognition.
The ATES maps are only dependent on the physical characteristics of the terrain, and do not account for the current snowpack conditions. Check your local avalanche forecast for up to date information about current avalanche hazard conditions. By combining the ATES rating with the avalanche danger rating for the day, you can estimate the level of caution recommended for specific terrain features using a decision-support tool called the Avaluator v2.0:
