For ordinary people, they do not have knowledge of geography, nor do they have professional contour reading skills. Therefore, for ordinary people, a topographic map is actually a topographic rendering.
Something like this:
This is a global terrain (rendered map), you can clearly see which side is the plain and which side is the mountain. For ordinary people, download a topographic map, this kind of map is enough.
Download software recommendation: Figure New Earth
First open Map New Earth, click on the menu "online map"-"thematic map"-"global statistics"-"global terrain".
Then click to load.
After that, you can rotate the earth arbitrarily and find the place you want.
Finally, click the menu "View"-"High-definition screenshot" to download the topographic map of the desired location as a picture format through the screenshot.
For friends with certain geographical knowledge, such a topographic map is not enough. Then we have to introduce a new concept, which is DEM. DEM is a digital elevation model. In layman's terms, it is to express terrain in the form of data.
By obtaining DEM data, and then using DEM data to generate a topographic rendering map, we can get a more high-precision topographic map. In addition, we can also generate contour lines based on DEM data, which is convenient for production and learning.
Some people must ask, then how to obtain DEM elevation data? Rest assured, there is a free download channel:
elevation data download