# Tag Info

19

I think you are too into the numbers. When talking about longitude and latitude they are two different things. Longitude goes east and west from a point on the earth from 0 to 180 degrees east and 0 to 180 degrees west and describe semicircles of equal length running from the north pole to the south pole. Latitude however is in degrees north or south of ...

5

There is a site that will show you the antipode for any location, and takes you through the calculation if you need it - https://www.geodatos.net/en/antipodes/united-states/monterey. Looking at the question, and your own potential answer, that you originally posted on the GIS SE, you correctly calculated the longitude of the antipode, but you mistakenly ...

3

First step - draw a strike line where line A intersects the 400 m line. Second step - you know that the sandstone layer is of equal thickness and dip, so you can draw a parallel line at the place with line B intersects the 400 m line. This will give you the thickness, as expressed on a horizontal surface. You know what the dip angle is, so getting the real ...

3

You can travel in north-south direction to go around the world... but you can also travel east-west. Going around the equator halfway will see no north-south change, but still be halfway around the world... so that should make clear that two antipodal points can be much less north-south change than between the North Pole to the South Pole. They can even ...

3

It all depends on exactly what you mean by "halfway around the earth heading due north or south." One theoretical interpretation of that phrase is that, starting in Monterey, California, you start heading south, and you continue walking south until the distance that you've walked south is half the circumference of the earth. (Throughout this answer,...

2

It's easy to get confused by great circle distances when looking at a flat map. I find it much easier to understand the concept while looking at a globe, or if I don't have any, on Google Earth. The trick is to rotate the globe and redefine the north pole, so that Monterey is on "top" of the world. With our new definition: Monterey is now the ...

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