![]() ![]() ![]() Now we need to consider the 1,200 meter ascent. Hiking at 4km an hour, it would take you 30 minutes to cover 2 km on flat ground. So, if you were ascending a 1,200-meter mountain from sea level and its summit was 2 km away, you would first consider the distance. Naismith’s rule says that you should add 10 minutes for every 100 meters of elevation gain to arrive at an estimate for how long it will take you. However, let’s say point B is a summit, entailing quite a lot of elevation gain to attain. If point A is 4km away from point B, it would take you an hour to walk between them along flat terrain. Let’s take an average of about 4km per hour. Using Naismith's Rule, you can estimate how long it will take you to reach a summit, even on mountainous ground (Image credit: fotoVoyager)Įveryone hikes at a different speed, usually between 3 to 5km an hour. Naismith in 1892, it is a practical way to estimate timings and average hiking speed when hillwalking. Developed by Scottish mountaineer William W. Fortunately, there’s a handy rule you can use when ascending a slope to make accurate predictions: Naismith’s rule. This is relatively easy on flat ground but more complicated when ascending mountainous terrain. ![]() With this in mind, it’s useful to be able to estimate how long it will take to get from one point to another. Or worse still, you don’t want to be on dangerous ground when it gets dark without a headlamp. After all, you don’t want to be still on the hill when you’re supposed to have a reservation at a restaurant in the valley. Using contour lines to estimate how long it will take to get from A to B By matching near and distant features based on their contours, you can turn your map so that it is orientated to your surroundings. #Are contour lines in art 2d how to#Once you’re sure you know where you are, it’s useful to know how to orientate a map. Once you've triangulated your location, you can begin to take bearings, estimate timings and plan ahead (Image credit: Getty) It’s also easy to mistake one path for another on a map, or pick out the wrong forest, or think you’re crossing one stream when actually you are crossing another. Streams alter course, new paths are built, trees are blown over, forests are cleared, new woodland is planted, roads are washed away in floods, etc etc. We rely first and foremost on contours because we live in an impermanent world. Before considering any of these, and before you consult your map or go anywhere near your best compass, first take a look around and work out what the land around you is doing and what that will mean for the contours you’d expect to see on your map. It’s tempting to look for the path you are on, or for the stream that's merrily trickling by alongside you, or the drystone wall that’s cutting across in front of your path, or the forest in the valley below. Contour lines are more important than any other feature when you are trying to work out where you are on the map. Here’s something to remember, contours are king. Contour lines help you to form this picture of the journey in your mind, helping you to stay on the right course. How contours can enable you to identify different landscape features (Image credit: Getty)Īs you learn navigation, you’ll develop an appreciation for looking at the journey ahead on the map and visualising what to expect. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |