Quick Answer
To assess accessibility to remote areas using Google Earth, zoom in on the location and use the ruler tool to measure distances and angles between terrain features. Analyze the terrain for natural funnels and narrow passages that may require traversing. Use historical imagery to identify changes in terrain or vegetation.
Analyzing Terrain Features
When assessing accessibility to remote areas, it’s crucial to analyze the terrain features. Start by identifying ridges, valleys, and draws that can act as funnels or obstacles. Use the elevation profile tool to visualize the terrain’s topography and identify areas with steep inclines or declines. Zoom in on these areas to measure the angle of the slope and determine if it’s feasible to traverse. For example, a slope with an angle greater than 45 degrees may be too steep for hiking or hunting.
Measuring Distances and Angles
To measure distances and angles between terrain features, use the ruler tool in Google Earth. This will give you an accurate measurement of the distance and the bearing between two points. For example, if you’re planning to hike to a specific location, use the ruler tool to measure the distance and bearing from your starting point. This will help you determine the most efficient route and plan your route accordingly.
Using Historical Imagery
Historical imagery in Google Earth is a powerful tool for analyzing terrain features and vegetation changes over time. By comparing historical images, you can identify areas where vegetation has grown or changed, which can indicate the presence of water sources or game trails. For example, if you notice a area with dense vegetation in historical imagery, but it’s now clear in current imagery, it could indicate the presence of a water source or a game trail. This information can be invaluable when planning a hunting trip or assessing accessibility to remote areas.
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