How do you read an elevation map?

Answer 1

You read a weather map by looking at all the symbols. First look for the high and low pressure signs. They look like big H and a big L the H is red and the L is blue. Then look for the warm front and cold front symbols, the cold front is blue with triangles on the top a warm front is red with circles on the top. There might even be a purple design on the map which is a combination of a warm front and a cold front. Second look for stationary fronts, they are a pattern of a warm front and a cold front they indicate air masses in the same location are the precipitation symbols, the rain symbol and the snow symbol. The rain symbol looks like black dots and the snow symbols are black snow flakes. the are also freezing conditions and blowing snow, the freezing conditions look like a curvy line with a black dot under it and a black curvy line with a comma. The blowing snow symbol looks like two arrows intersecting. That is how to read a weather map.

Answer 2

I. The common name for a map showing terrain elevation is a Topographical Map, commonly referred to as a Topo Map.

The elevations on a contour map are shown by lines that swirl around on the map. The lines may describe a closed shape, or not, depending on the detail. The smaller the area covered by one specific map, the more detail is shown on the map. The amount of terrain covered by a map is the scale. A scale of 1:100 says that 1 unit on the map is the same as 100 units on the ground. On the other hand 1:50,000 shows in 1 unit on the map what is found in 50,000 of the same units on the ground.

Each line shows only one elevation. All lines on one map will have the same value. Normally, not all lines are labeled. As you go from one labeled line to the next labeled line count the lines between each labeled line. Divide the difference between each adjacent labeled line by the total number of lines including the beginning and ending labeled lines. The answer is the difference between any two adjacent lines.

If the value from one line to the next increases the elevation is increasing. If the value decreases then the elevation decreases. The increase or decrease is shown by the change in value of the adjacent lines. The closer the lines are together the steeper the slope.

For instance, a perfectly vertical cliff would be shown when several lines flow together for some distance and then separate. What the map is showing for the cliff is several lines stacked one on top of the other. The difference between the top and bottom line is the height of the cliff. The direction of the single line is the direction of the cliff.

II. Topo maps also provide latitude and longitude coordinates. Latitude is read on the vertical sides and longitude is red on the horizontal sides.

If you are using latitude and longitude coordinates, from a map, in conjunction with a GPS you must remember that a GPS displays latitude and longitude referenced to a specific DATUM. Good maps, including Topo Maps and Oceanic Charts all will have the Datum used for that specific map or chart clearly stated, usually in the Title Block.

The earth is not a perfect sphere, rather it is kind of pear shaped. Not only is the earth pear shaped but it is also lumpy.

A Datum is a particular cartographic mathematical formula that someone feels best describes the configuration of the earth's surface for the purpose of locating a position on that surface.

If you use coordinates given for the Datum of a map and try to establish your location with a GPS that is set to display a different datum, or vice versa, you will have anything from a minor error to a colossal error. Any GPS that provides latitude and longitude will have a place where the user can set the Datum on the GPS to coincide with a map Datum.

The most common data found on US maps and charts are WGS84 (World Geodetic System 1984), NAD 1927 (North American Datum 1927), and NAD 1983.

Answer 3

They are shown by the use of isotherms. Not isobar because isobars use air pressure.... :) :P :D

Answer 4

The Precipitation will be the BAR GRAPH the Temperature will be the LINE GRAPH

Answer 5

your local news should have a weather portion of the show. there is a map behind the person telling you what the weather will be like.

Answer 6

a 5 day weather forcast