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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7
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1answer
50 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 ...
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1answer
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Source for USGS (probably not) seismic map of La Habra, California (Publication Date April 15, 1998)

I'm trying to find to original source (especially high quality version) of this conservation seismic map. I know that it probably came from USGS (or not) but looks like it out of print? I tried to ...
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1answer
64 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. ...
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1answer
223 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 ...
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1answer
110 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 ...
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1answer
86 views

map projections that minimises differences

I have an odd map projection requirement, but I would like a world map projection where even very small countries, like Luxembourg or Belgium are still visible when also showing China and Canada on ...
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Literature on thematic 4D maps

I need to understand more about thematic 4D mapping. I would roughly classify it as a method of cartography. In particular I want to do research on what software is being used to create thematic 4D ...
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3answers
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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 ...
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1answer
63 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!
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2answers
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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 ...
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3answers
134 views

How do we know the Arctic is just ice?

If I look at an Earth's map, the Arctic/North Pole always appears just like water. Evidently this is actually covered by ice, with an area depending on the time of the year. If this area is bigger ...
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1answer
59 views

How do you infer what a cross section might look like below sea level?

Here is a schematic of a cross section which should represent an anticline: https://postimg.cc/4HcmmZ26 Below sea level, I have inferred what the units might look like with the dashed lines. As I have ...
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1answer
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What is the best way to split strike and dip data on the image provided into "domains" in order to interpret folding on a stereonet?

Link to the original image: https://postimg.cc/v4bRqxxR I believe this image represents two folds which are overturned and plunging. I would like to analyse these folds on a stereonet, but I am unsure ...
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101 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 ...
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1answer
88 views

Identifying thrust faults on a geologic map

I am not able to upload the map as the file is too large, but I have a map which states there is an over thrust fault. It has two ticks on it indicating downthrow to the NE. The downthrow is pointing ...
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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 ...
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3answers
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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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3answers
4k 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 ...
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2answers
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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 ...
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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 ...
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3answers
140 views

convert .srtm to xyz ord grd

I need to plot bathymetry map of my study region and need to convert the .srtm to .xyz or .grd format to use GMT. I tried to do this with grdraster and xyz2grd, but got wrong results. I found that ...
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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 ...
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1answer
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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? ...
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What is the Offset Corner Latitude and Longtitude?

I tried to understand about Offset Corner Latitude Point 1,2,3,4 and Offset Corner Longitude Point 1,2,3,4. But I couldn't understand what is it? For example, I have the Frame center Latitude and ...
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1answer
120 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?
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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 ...
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1answer
316 views

How would our weather change in the event of a magnetic pole shift?

Every two hundred thousand years or so the magnetic poles flip. Obviously it is not life ending but how would our weather change? How long does the transition take? Is there a map or model to show ...
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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? Can living where (rare) earth magnetic ore is abundant provide a mini-magnetoshere?
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1answer
62 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 ...
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2answers
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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 ...
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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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2answers
55 views

International Timing Zone

Why not make International Timing Zone just a straight line like this?
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1answer
167 views

Where on Earth is the most windless lake with its own micro climate sea breeze?

Would a circular lake have enough of sea breeze strong to create a gentle vortex in the center of the lake? Is there such a place on Earth where lake micro climate vortexes occur frequently? The ...
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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 ...
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166 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?
3
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1answer
100 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 ...
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1answer
1k 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?
5
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1answer
204 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 ...
2
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1answer
406 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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0answers
60 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 ...
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1answer
159 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 ...
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1answer
412 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 ...
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2answers
224 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?
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1answer
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 ...
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1answer
78 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'...
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1answer
489 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 ...
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1answer
64 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 ...
2
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1answer
280 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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2answers
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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
163 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 ...