Skip to main content

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).

Filter by
Sorted by
Tagged with
30 votes
2 answers
23k views

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? Can living where (rare) earth magnetic ore is abundant provide a mini-magnetoshere?
Muze's user avatar
  • 1
26 votes
2 answers
11k views

What is the line crossing the Pacific Ocean that is shown on maps?

The picture below shows an imaginary line on the globe which crosses the Pacific Ocean and works as a rough separator of the Eastern and Western hemispheres. What is this line called in English? I'm ...
Igor Soloydenko's user avatar
13 votes
1 answer
217 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 ...
tobias47n9e's user avatar
  • 3,956
11 votes
3 answers
2k views

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 ...
CompanyDroneFromSector7G's user avatar
11 votes
2 answers
5k 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 ...
mace's user avatar
  • 472
10 votes
6 answers
5k views

Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?

Can living in a region that is rich in (rare) earth metal that has an inherently strong magnetic field provide any protection from cosmic radiation? Where are the strongest magnetic field other than ...
Muze's user avatar
  • 1
10 votes
2 answers
4k views

Are there seamounts as close as 100 m to the water surface and not inside any Exclusive Economic Zone?

I did not find any seamounts as close as 100 m to the water surface (100m from the mean surface level at the location of the mountain) that are not part of any Exclusive Economic Zone (EEZ.) Do any ...
zabop's user avatar
  • 246
8 votes
3 answers
5k 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 ...
user6194's user avatar
7 votes
3 answers
32k 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 ...
Muze's user avatar
  • 1
7 votes
1 answer
706 views

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 ...
Dejvid Myrtaj's user avatar
7 votes
1 answer
116 views

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 ...
user4732's user avatar
7 votes
1 answer
285 views

Software for spatial interpolation of temperature and relative humidity data from weather stations

I'm working with time series of weather data (specifically, min/max daily temperatures and relative humidity) recorded from weather stations over an area of about 200,000 km2. I would be interested in ...
Isaia Ismaele's user avatar
7 votes
1 answer
343 views

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 ...
KilloWatt's user avatar
7 votes
3 answers
329 views

Has Antarctica's coastline been completely mapped? (map discrepancies)

Looking at different world maps, I noticed that there is considerable variety in how the coastline of Antarctica is depicted (even when taking the different map projections into consideration). Are ...
user21059's user avatar
6 votes
3 answers
5k views

What is the average color of soil?

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 ...
Muze's user avatar
  • 1
6 votes
2 answers
2k views

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 ...
Andrew Cavagnino's user avatar
6 votes
1 answer
563 views

What kind of projection is that?

I found this figure in the paper: Atlantic overturning: new observations and challenges by Srokosz et al. I wonder what kind of projection this is and what the advantages of it are? It looks to me as ...
Weiss's user avatar
  • 2,043
6 votes
1 answer
222 views

Geotiff for Elevation Data or NetCDF

I need elevation data with lat and long for a project worldwide. By intuition I would say that a GeoTiff would be suitable, e.g. the one from https://asterweb.jpl.nasa.gov/gdem.asp. Are there better ...
Weiss's user avatar
  • 2,043
6 votes
1 answer
279 views

Old topographic maps of Odisha, India

For my research related to coastal Odisha, India I am mapping the coastal boundary. I have downloaded available Landsat images which date back to 1972. But I want to map the same for before 1972. I am ...
Badal's user avatar
  • 213
6 votes
1 answer
261 views

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?
Henry Stone's user avatar
6 votes
1 answer
2k views

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 ...
Andrew Cavagnino's user avatar
6 votes
1 answer
369 views

Is there a global map of wind design loads or wind gust climatology?

I'm looking for a world map of wind gust climatology data, with the specific purpose of being used for coarse comparison of building design loads, with a consistent metric regardless of location. ...
greenish's user avatar
5 votes
1 answer
5k 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?
Muze's user avatar
  • 1
5 votes
1 answer
242 views

What is the chasm in the Arctic on Google satellite map?

In the image below, taken from Google Maps satellite view, between Svalbard and Greenland there is what looks like a massive crevasse, chasm, crack, &c. What is it? Should I be worried?
Cobbles's user avatar
  • 153
4 votes
1 answer
569 views

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 ...
BmyGuest's user avatar
  • 357
4 votes
2 answers
1k views

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 ...
Dan's user avatar
  • 49
4 votes
1 answer
74 views

Realtime planetary gravity maps?

I'm trying to find maps of realtime (or at least periodically updated / semi-realtime) gravity maps of Earth. I was hoping that GOCE might have something like this available, but I've been hitting a ...
ylluminate's user avatar
4 votes
1 answer
544 views

Where are the magnetopheres weak points on Earth?

The picture below shows how a magnetosphere has defined points on the solid magnet and on the moon where cosmic radiation has a window, gap, or focal point. I'm not sure what to call these areas? ...
Muze's user avatar
  • 1
4 votes
2 answers
190 views

Does the position of the Earth's axis affect the position and shape of its continents?

If somehow we were to move the Earth's axis of rotation to, say, Mexico, making some spot in Mexico effectively the North Pole, would this change how the continental plates drift over time, thereby ...
user3752935's user avatar
4 votes
1 answer
70 views

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 ...
user2651050's user avatar
4 votes
0 answers
165 views

How would one go about drawing the contour lines for this map in order to draw the cross section?

Good Day. We Received this map as practice for our Geology university module and I have no idea how to draw the strike lines where the different heights intersect the different rock types in order to ...
KaapseDwergie2020's user avatar
4 votes
0 answers
272 views

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?
Muze's user avatar
  • 1
3 votes
1 answer
125 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?
Tyler Durden's user avatar
  • 1,804
3 votes
2 answers
69 views

Resource for scientific maps?

I need an administrative division map of england for a motivation for some scientific workshop. I don't want to cite wikipedia for this. Sadly I can't find any official resources and I don't really ...
NoteMyQuestion's user avatar
3 votes
1 answer
218 views

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 ...
uhoh's user avatar
  • 7,122
3 votes
1 answer
158 views

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 ...
Muze's user avatar
  • 1
3 votes
1 answer
217 views

Complete missing outcrop problem

Given A is upper limit of sand stone, B is the lower limit of the planes that are equal in distance and dip. Dip angle is 29 degrees. Complete the outcrop of this map. —————————————————————————- Now I ...
Mather 's user avatar
  • 131
3 votes
1 answer
126 views

What is the best way to interpolate isotopic data and display them?

I want to interpolate isotope data of precipitation and display it on a map. The data are available as a CSV file. ...
Weiss's user avatar
  • 2,043
3 votes
1 answer
89 views

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'...
Stepan's user avatar
  • 133
3 votes
0 answers
197 views

Investigating the "Leesburg split" rainfall anomaly

I've spent some time in the Leesburg, Virginia (USA) area and I've noticed that whenever a line of thunderstorms approaches the area, it frequently splits and goes around a particular spot just ...
SlowMagic's user avatar
3 votes
0 answers
51 views

How is drainage divide defined upstream of bifurcation?

Recently, I visited the Divide Creek birfucation in Canada where a creek bifurcates with one arm flowing to Pacific and the other to Arctic Ocean and I was wondering how does this rather rare ...
Jen's user avatar
  • 113
3 votes
0 answers
997 views

Crustal age global map

I've been searching for a map depicting the age of each part of the crust for a long time. I'm not a geologist but I'm a physicist so I would like to know about the most up-to-date and accurate ...
Swike's user avatar
  • 342
3 votes
0 answers
24 views

Coloring maps by feature orientation

I live in the SF Bay Area where many, but not all, geological features are oriented parallel to the San Andreas Fault. I was wondering if there’s a type of map where ridges are colored by compass ...
ed94133's user avatar
  • 343
3 votes
0 answers
68 views

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 ...
Tyler Durden's user avatar
  • 1,804
3 votes
0 answers
2k 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 ...
Mizza's user avatar
  • 31
2 votes
2 answers
51 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 ...
capHossein12DarthVader's user avatar
2 votes
1 answer
83 views

Where can I find geological maps for countries from Africa?

I am interested in geological maps for multiple African countries: Egypt, Sudan, and Ivory Coast. Is there any geoportal available for Africa, something similar to geokniga or vsegei, but for Arican ...
alecsx's user avatar
  • 133
2 votes
2 answers
374 views

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?
Jeffrey Boettger's user avatar
2 votes
1 answer
240 views

Does anyone have a geological map 1 / 1 000 000 or 1 / 50k of Morocco in HD?

I am having a problem reading in my low version map. Besides, any tips on where I can find "free" maps? Thank you!
GiuR's user avatar
  • 41
2 votes
2 answers
104 views

Would ultrasound be a valid method of mapping ocean floors given the perceived "gel" is ocean water?

I am a scuba diver, with a big idea that would require me to map various dive sites as I went to them and dove in them. The typical size and other implications of sonar technology would essentially ...
R3TURN-0's user avatar