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Lines form circles around hills or depressions.While that would be pretty cool, being at two different elevations at the same time would cause some serious issues with physicists because basically you would need to be in two different places at one time, and that can't happen.While we're focused on lines here, look at the space between any two lines. Specifically the contour lines have rules - and every topographic map follows them:1. One different thing about topographic maps: they have rules. Each index contour might only be labeled in two or three other places - it keeps the clutter down (Muhammad:2005).Contour Ruler This step with a big 50 painted on it means that you're now 50 feet above sea level. Do Why don't you have a seat, catch your breath and take look around. Well lucky for you, after your 50 stairs, you see a painted step that has a big 5-0 printed on it. After a while you'll get tired and start to forget. Don't believe me? Go run stairs somewhere and try to remember what floor you are on, try a tall hotel stairwell. If you keep going, eventually you will probably lose count of how many steps you took. This would be one of your contour lines.If you went up another 10 steps there would be another step painted brown there as well. Not just in one spot, the entire step, all the way across. If you start hiking up the stairs, the tenth step up would be painted light brown. Imagine you are at the very bottom of those steps. Maybe you're at the Pyramids of Giza or one of those big concrete sports arenas or any other place where there's lots of steps. To put this into perspective, imagine you are somewhere with a big staircase. There just isn't enough room on the map to keep putting numbers everywhere, and it would get awfully cluttered if we did. Why not just put numbers on every line? Space. Index contours display the exact elevation of one specific line. Each line is a different elevation, but some of the lines have numbers on them. If you were to look at a topographic map, you would realize that there's not just one line, but many. On most maps like this, these lines are shown with a light brown color. If you looked at this from above, just like the whipped cream from before, you would see all those lines connecting and forming circles. If you did this for the entire rock, then drained all the water out, the rock would have lines all over it. Think of it this way, if you had a tub of water with a big rock in it and you started filling the tub with water but paused every minute to draw a line where the water had risen to - those lines would be like contour lines. All that means is that where there's a line, everything on that line is the same height or altitude. Contour lines connect points of equal elevation.
CARA MEMBUAT PETA TOPOGRAFI DARI GOOGLE EARTH HOW TO
Later on in the lesson, we'll learn how this information connects to a true geologic map and how to read all those colors.Topographic Map BasicsWe begin our focus on the basic part of a topographic map, all those lines. Specifically, we will delve into the rules that those lines follow and how to make sense of the numbers associated with them. So what do these lines mean? Why are there so many, and why are they so crooked? This lesson will be looking at just that: we will cover what a topographic map is, what those lines are, and how they work. Topographic maps are used by people like hikers and others who need to know what the elevation of an area is. THEORYAtopographic mapis a type of map that shows elevation. To know the concept of scale as a miniature representation.Ĭ. To develop the concept of representation of the earth, a small part of the earth on paper.Ģ. MATHEMATICS AND NATURAL SCIENCE FACULTYYOGYAKARTA STATE UNIVERSITYī. STUDY PROGRAM OF INTERNATIONAL SCIENCE EDUCATION
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Arranged by :Aprilia Mantayani (14312241028 )CLASS I SCIENCE EDUCATION 2014