Questions tagged [geography]

For questions that are concerned with or nested within the field of Geography; the study of lands, their features, and the relationships and complexities between and among peoples, the physical environment, and ecosystems.

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1answer
333 views

The Size Hierarchy of a Landmass

If we judge a hierarchy of a landmass by size, here is what, in my knowledge, it would have looked like, from largest to smallest: Continent Subcontinent ??? Island Islet In regards to size, is ...
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0answers
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Rising sea level: flooding of iconic buildings

I realize that this question may be arguably off-topic, but there doesn't seem to be a stack exchange specific to oceanography, geography, or architecture. With rising sea level in mind, how high ...
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1answer
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Is there a freely usable map of Earth cave systems and/or density?

I am considering creating some sort of model of the Earth using real world collected data. Things like worldwide height maps certainly exist, as do many maps of minerals, rainfall, etc. Are there ...
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What is this weird looking structure in Ethiopian desert?

I was surfing through Google Maps around Ethiopian desert region (close to the town of Werder/Wardheer) and I found this weird looking structure. It seems like a dried up lake bed, but I can't guess ...
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1answer
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Is it possible to infer the depth of a river from the shapes of the islands and the banks?

Look at the photo below. Presumably, the river bed is a smooth shape. Therefore, it should be possible to infer the depth of the water from the photo, right? I am not even an amateur of geo-science. ...
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1answer
975 views

Calculate the Diameter of earth using Latitude lines

I have a basic question : Earth has 181 latitude lines, each having distance of 111 km. if i multiply that i will get 20091 KM, which could be the sum of distance from north pole to south pole i.e ...
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1answer
206 views

Identifying a desert landform

I saw this landform on Google Earth on the border of Algeria/Tunisia/Libya and wondered what it is called (so that I can read up on it and find out how it forms - I am not a geologist): Here is a 3D ...
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3answers
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Why is there a line of volcanoes along the northwest coast of North America?

Mount Hood in Oregon is a dormant volcano, and in Washington Mount St. Helens and Mt. Ranier are both active volcanoes. What causes this line of volcanoes running parallel to the coastline along the ...
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1answer
459 views

What are seasonal and perennial ponds?

I stumbled upon these terms in a text related to Pisciculture (fish farming). I've looked on Google and Google-books but I couldn't find any type of definition. P.S. Please let me know if I posted it ...
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2answers
543 views

Other than the South Pole where is the windless place on Earth?

For this other question "Would this chambered cylinder be possible", preferably near the equator where is a calmest place from the troposphere to the stratosphere where is the windless place one Earth ...
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2answers
234 views

Actual thickness of permafrost vs theoretical maximum possibly permafrost thickness

I came across a question in my notes about why the actual thickness of permafrost is much less than the theoretical maximum possible permafrost thickness value. The actual permafrost measure on sites ...
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106 views

Why would moving the prime meridian hasten the time when it would be necessary to drop a day from the calendar?

I'm reading the sci-fi novel Saint Leibowitz and the Wild Horse Woman, and in the story a pope in the post-apocalyptic future moves the prime meridian from England to the U.S. It is an unpopular ...
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731 views

How can I find the nearest point on the coast from an ocean location?

Given some location of interest $X$ in a lake or in the ocean with known lat and lon, I'd like to find the lat and lon of the coastal location that is closest to $X$, as well as distance between the ...
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Why does NW coast of Scotland look like it does? (Similar to Norway, so different to other European coastlines)

When looking at a map of Europe, I always wonder why the North-West coast of Scotland has a very similar craggy outline to the NW coast of Norway. It is completely different to the smooth outline of ...
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1answer
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Factors Affecting Soil Profile

Soil forming factors can include climate, parent material, vegetation, animal activity, fire and influence by humans. I have investigated a podzol soil profile with horizons LFH, AH, AE, BF and ...
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1answer
111 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
172 views

Permafrost thickness

Studying for a midterm and I came across the following question. Is aspect more or less important than material type in determining permafrost thickness? In physical geology, aspect is the compass ...
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1answer
2k views

Why do the vast majority of the world's deserts fall on the tropic of capricorn or cancer?

I noticed on google maps today that the earth has two very distinct regions on which the majority of deserts are located. These fall on the tropic of capricorn and cancer. Illustrated here: What ...
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2answers
102 views

Quotient farthest mouths/nearest sources

Much googling has not left me any the wiser, so here goes. Let FM be the distance between the mouths of two rivers X and Y. Let NS be the distance between the sources of the same two rivers X and Y. ...
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483 views

Half of Earth with most landmass

About 71% of the Earth's surface is covered with water and the remaining 29% is landmass*. If you could theoretically cut the planet in half, with the objective of producing a half with the most ...
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2answers
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Is there a name for the process of producing positional data for cartography?

Map-making requires two distinct processes, first to produce the data -- latitude, longitude and elevation -- of the points to be mapped; and second to represent this data on a flat surface as a map. ...
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923 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 ...
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2answers
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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
154 views

What is Stock or Overflow Pit? Is it a terminology in geography? What is the correct word for it? [closed]

I have an excel file that I have to make the join with another table that has a column listed of different kind of feature types. This was done by someone else who did GPS'ed and spell that word and ...
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2answers
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What is the shortest path between two points on Earth's surface?

I am a Math student and don't know about longitude and latitude. This question was asked in CSIR-NET Mathematics. Please help me to solve it. Two points $A$ and $B$ on the surface of the Earth have ...
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4answers
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Does gravity differ from place to place on Earth

Does a particular object have the same weight on every part of Earth or does it vary?
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450 views

Why is the elevation of the Iberian Peninsula so high?

The Iberian peninsula lies more than 600 m above sea level, on average, far above similar geological regions in western Europe. Even tectonically undeformed areas in the inner basins present a ...
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3answers
462 views

Round structure in southern United States

Assuming here might be someone who knows something about this, I wanted to ask what is behind this round structure I have spotted today on Google Earth: There seems to be a large (~200 km), nearly ...
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357 views

Great Lakes Earth: The Americas [closed]

Related to If the Oceans Were Deeper The Appalachian Range, at first glance, doesn’t seem so different—low-lying hills covered in forest dominating the eastern landscape. However, they are taller—7,...
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How do I represent wind direction on a UTM (Universal Transverse Mercator) map projection?

What does it mean when I say "the wind direction is 50o" on a UTM map? Which direction is the 0o reference? For example, if I draw a wind vector V as seen in the ...
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2answers
3k views

How much distance does $0.001^\circ$ in latitude or longitude represent?

If I'm standing at a lat of 30.000$^\circ$ and a long of 30.000$^\circ$ and I move to a lat of 30.001$^\circ$ and a long 30.000$^\circ$, how far have I gone? Is there a relationship between decimal ...
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1answer
132 views

Does Contwoyto Lake empty into both Bathurst Inlet and Chantrey Inlet?

Contwoyto Lake is a large lake in northwestern Nunavut. Descriptions of it say that its primary outlet leads to Bathurst Inlet. Does the lake also have an outlet that leads to Chantrey Inlet, ...
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1answer
716 views

Is there an estimate for the length of the American Cordillera?

There was no geography site on Stack Exchange, so I thought the best place to ask about this was in Earth Science: Do we have an estimate for the length of the American Cordillera (the chain of ...
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1answer
268 views

What percent of volcanoes are glaciated?

I have not been able to find an estimate of how many known volcanoes host perennial ice masses, and it would be very useful to me. Does anyone know of any attempts to do this?
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1answer
557 views

What is the name of this feature on the Red Sea coast of Saudi Arabia?

25°37'32.38"N - latitude 36°44'27.66"E - longitude This is between Umluj and Al Wajh on the Red Sea coast of Saudi Arabia. I can't find any kind of identification in English or Arabic. So I am ...
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1answer
764 views

Ore deposits buried under cities?

Occasionally there are news about a major ore deposit for a specific commodity being found. Some of these recent discoveries are underground, and the "geophysics" aspect of their exploration is more ...
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1answer
3k views

What were the tallest mountain ranges in Earth's geological past?

There have been numerous episodes of mountain building in Earth's geological history, particularly through the super-continent cycle. Many mountains and mountain ranges have been eroded, as mentioned ...
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1answer
1k views

How old is Casiquiare canal?

Casiquiare canal is the world's largest bifurcation. Since such a large bifurcation seems unlikely to be produced and even less likely to stay for centuries, I wonder how old it is and why all the ...
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1answer
623 views

Why is the Ring of Fire there? [duplicate]

The Ring of Fire goes through the places that have the most earthquakes. Why is the Ring of Fire there, not somewhere else? Any help would be appreciated!
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907 views

Is there a standard definition of the term “mountain”?

Is there any standard internationally recognizable definition of the term "mountain"? If international texts describe some terrain as mountains, do they use some international definition of the term,...

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