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Questions tagged [mapping]

The process of translating spatially organized knowledge of an area or place into a geographic medium. Can include the production of physical/paper maps and atlases, geocoded data, or interactive virtual maps produced using Geographic Information Systems (GIS).

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Where on Earth does the wind only blow one way?

Is there a place on Earth that if the wind is blowing its only blowing (here is the twist) in the same direction from the ground to 53 km high?
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1answer
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Where on Earth is the highest none polar magnetic fields?

Is there anywhere that magnetic ore deposits are strong enough to have a magnetic field that would be stronger then Earths' magnetic poles by proximity? I'm not asking Where on Earth is the ...
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Where on Earth is the most windless lake with its own sea breeze?

I am looking for a lake that is circular with a lack of external wind but big enough to have its own sea breeze strong enough to intentionally entrap a blimp in a natural vortex. Is there such a ...
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1answer
101 views

Where on Earth has the least changing temperature? [closed]

Is there a map that shows places where the temperature changes the least season to season? Is there a place on Earth where the temperature is the most constant in a comfortable range?
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2answers
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What is the average color of dirt?

Where I live the soil is red. Is there a map or chart where you can see the average color of the dirt according to geographical location? What would the color be if all of the dirt on Earth was ...
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1answer
116 views

Distortion-free map of all continents [closed]

I've been searching for a map that shows all continents in their actual size that is free of projection distortion, to no avail. Every map I found was of a particular projection type and as such ...
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1answer
145 views

At what depth does the underground begin to warm up?

Spring water comes out colder from being underground. But if you get deeper the temperature goes up. At what depth does the underground stop getting colder and begins getting warmer? Is there a map ...
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0answers
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Does Martin Ledge uncover?

In the current Wikipedia article for Martin Ledge it reads: "Martin Ledge is small barren rocks that barely stick out of the waters". However, the NOAA chart for the area shows a low tide depth of 16 ...
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1answer
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What are these radial line patterns shown in representations of antarctica?

In the video of the recent Iridium-6/GRACE-FO launch at about T+ 33:00 (curently at 49:00 in the video) the 2nd stage passes ...
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1answer
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How much of Earth's land area has antipodal land area?

Using the site antipodesmap one can quickly explore what the opposite point of the earth to any location would be. That is, the surface point connected to this point by a straight line through the ...
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1answer
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What are these clearings in Amazon rainforest?

I was surfing around on Google Maps and found dozens of clearings amid a sea of vegetation. What are they? Some look like rocks, others can't be made out due to the image resolution. Here is one ...
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2answers
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Where on Earth is the magnetic field intensity stronger?

Are there places on Earth that have a strong magnetic field other than the magnetic north and south poles?
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Geological maps of British Columbia

I’ve been doing research into mineral deposits in B.C. I’ve been overlaying old claims maps onto Google Earth maps. Are there any good public maps for metallic minerals for British Columbia online?
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1answer
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Software to draw maps based on Earth

I am looking for a tool to sketch changes to Earth. It should start with a geoid or an Earth model, rise/lower/flood selected areas. "Heal" boardersk: if an island is added in an ocean height shouldn'...
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1answer
135 views

Gnomonic projection of a curves with constant latitude

If we consider gnomonic projection, what are projections of curves with constant latitude. For example, we know that great circles are projected to straight lines. So, equator should be projected on a ...
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1answer
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Is there a measure for the “dominance” of a city's population?

since there are topological isolation as well as prominence as measures to describe how "dominant" a summit is in comparison to the ones surrounding it, I was thinking about a similar measure to ...
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2answers
38 views

How to map (survey) the structure of crust

Mapping the bottom of the ocean is called seafloor mapping. I was wondering what mapping underground is called, such as when locating caves and caverns. I have seen it in movies, and I'm ...
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1answer
103 views

How to Interpret this set of Latitude and Longitude?

I have a house's coordinates that I know is in LA, Ventura, or Orange county, California and it says the latitude and longitude are ...
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0answers
685 views

Drawing strike lines when given strike and dip

Map 1 shows a hillside with topographic contours at 50 m intervals. At Locality A a coal seam is exposed at the surface. The strike and dip of the seam is as indicated on the map. Use this information ...
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1answer
393 views

How to determine ocean bottom depth for a data set consisting of longitude and latitude?

Given a data set which consists of pairs of longitudes and latitudes, is it possible to determine an estimate of the ocean bottom depth at that point? I can find maps of estimated sea depths online (...
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1answer
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A circle shape in Madagascar

I was seeing Madagascar on Google Maps and accidentally i saw a circle shape near Bebao. Coordinates are 17.4317443°E and 44.644248°S. Please, to satisfy my curiosity, can you tell me why is this ...
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1answer
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What are the best maps, if any, we have of the convection cells in the Earth's mantle?

As the title states, what maps, if any, do we have of convection currents inside the Earth's mantle, and which would you suggest to be the most detailed and accurate?
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1answer
99 views

Street and road data

Where do companies like Google and Yahoo and Mapquest get their street and road data? Is this a data source that the public has access to?
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1answer
54 views

Diomede Islands

Are the Diomede Islands part of North America or Asia? I cannot find a credible, clear answer online. Only that the islands were part of the land bridge between the two continents.
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2answers
1k views

Is there a map that displays every country at its correct relative size?

I know that the standard Mercator projection is completely wrong when it comes to the relative sizes of countries (Greenland appears relatively much larger than in reality, for example). AFAIK they do ...
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2answers
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Topographic Maps

I have a question about a project I have for school. I have to make a topographic map of a made up island. I was wondering if the placement of the contour lines and the index lines are correct. Also ...
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1answer
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Inconsistency between topographic survey and Google Earth

For a piece of land in Peru (Zone 18K), I was provided the following UTM coordinates (showing just one): 140800 E 8176337 N. However, when I look up the site on Google Earth, while the N coordinate is ...
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1answer
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Maps and Faults

I'm having trouble determining the type of fault represented on this map. What type of fault is represented on this map? What is the fault orientation? What does this mean?, Do I do this by working ...
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2answers
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Interpreting a geological map

I have a homework question that I'm stuck on, I have attempted interpreting this map but am not sure if I have to correct interpretation. What is the youngest/oldest rock in the geological ...
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2answers
2k views

Standardized scale for coastline length or mapping in general?

Measuring the length of a coastline depends on the scale of the measuring tool. The smaller the scale of your tool, the longer will your measured coastline be. The reason for this is the fractal ...
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3answers
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Where to find an accurate Mercator Projection world image?

I'm sorry if this doesn't fit "Earth Science" too well. No idea where else to ask this! Can anyone help me find an accurate world map in Mercator Projection? It doesn't need political borders or too ...
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1answer
183 views

How to measure stretching direction on chocolate-tablet boudins?

This has always bothered me during field mapping: A boudin with two stretching directions has the form of an M&M candy (or almond shape). What do I do to measure the two stretching directions if ...