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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
53 views

Land to ocean ratio in jurassic era

In todays world, 71% of the surface is covered in water. But was this always the case, far prehistoric times? Id guess you can estimate pretty precisely where the prehistoric oceans were based on ...
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0answers
23 views

Increse/decrease in day light hours at locations very close to the Arctic and Antarctic circles

I am not an expert in geography. In fact, I know almost nothing about geography. This question in fact concerns a math problem: I have been assigned to construct an analytic description, i.e. to find ...
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3answers
51 views

Transferring water using underground channel

I heard in tv show, there are water channels in underground like rivers or small channels! So I just wondered why don't we use such underground water channels to recharge the underground water of one ...
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0answers
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Is there a formally-defined converse of a Prominence Walk?

My question was inspired by this one - in particular, the subtopic of pumping water from the ocean to the below-sea-level basins to deal with rising sea levels (spoiler: it's horribly infeasible and ...
6
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1answer
67 views

What physical measurement / elevation is used to define Earth's radius?

Earth's radius is usually given as 6378137 meters (equatorial radius), its flattening is defined as 1/298.257223 (WGS84), and thus its polar radius is calculated as 6356752 meters. However, the ...
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0answers
36 views

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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0answers
37 views

Longest land path on Afro-Eurasia

Regarding Afro-Eurasia as single continent, I tried to draw longest geodesic line within it and got which is 16628 km (10 332 miles) length. Looks like this line is rather stable and lasts from ...
3
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1answer
87 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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1answer
31 views

Temperature graph for solar

Just wondered if this was accurate. Sorry for poor grammar. Typing on pgomw.
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2answers
39 views

which are the two countries with the flight time between them and time zone differences are equal [closed]

I have been flying to different countries so often and this question came to my mind out of nowhere! Which are the two countries with the flight time between them and time zone differences are equal? ...
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4answers
8k views

What is the deepest we have ever gone into the Earth?

I remember Journey to the Center of Earth and wonder: What is the deepest in the Earth surface or below sea level we have traveled either by foot, sub, drill or camera?
4
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1answer
96 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
123 views

Is there any correlation between Australia's uranium deposits and the unique animals?

Australian animals are very different than the rest of the world. I wonder if the radiation of Australia's Uranium deposits have anything to do with why animals uniquely evolved? For instance, ...
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2answers
68 views

How much change has there been to the shape of plate boundaries over geological time?

This is a question that has bothered me for many years. As a new teacher I was asked this question by a 12 year old in our plate tectonics class. I said I would go away and find out. I would really ...
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0answers
32 views

Where can I find a map/GIS of exposed granite

Where can I find a map, or coordinate list, or make an appropriate GIS query to look for large exposed granite mountains world-wide. (E.g. Yosemite would show up.) I've located several GIS systems ...
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0answers
136 views

How big does a lake have to be to have its own Sea Breeze?

How big does a body of water need to have a sea breeze that is stronger than other local wind? Could a circular lake create enough sea breeze and a vortex in the center to entrap a blimp ...
6
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1answer
349 views

How to calculate residence time for an element in a reservoir?

The residence time for an element in a reservoir can be calculated by the reservoir size at steady state divided by the inflow or outflow rate. Given the following diagram, I need to calculate the ...
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0answers
32 views

Where on Earth is the highest atmospheric pressure with the least amount of wind? [duplicate]

This question differs because it is not the same. In the blue area where is the highest air pressure? With a storm is OK with an average to. My question was partially a duplicate but I am still ...
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0answers
68 views

Is mediterranean climate a type of monsoon climate

Given that monsoon climate has the primary feature of seasonal reversal of wind systems and the same happens in case of Mediterranean climate too, does that mean Mediterranean climate is a special ...
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2answers
959 views

What is the distance between the tropics?

What is the distance between the tropic of cancer and the tropic of capricorn here on Earth? Now this would seem like I could simply google the answer to it and know the exact distance in miles (...
4
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1answer
239 views

What percentage of Earth's surface is arid?

Is there available information on how much of Earth surface is arid?
7
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1answer
70 views

Is there a special name for along-course elevation profiles of rivers, and where you can you find them?

Was discussing the terrain and rivers of Europe today with my father and it became apparent that a graph of the elevation versus course of a river would offer interesting insight, including a quick ...
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1answer
106 views

What is the name of the sea in this image? [closed]

I was reading in Wikipedia about the Indian Ocean and I saw there an image of the part of the globe with a "closed sea" (it's marked by a red arrow in the attached picture). What is the name of this ...
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2answers
104 views

Is Atacama Desert cloudy or cloudless most of the year?

I saw many contradictions everywhere. For example, my geography textbook says that Atacama Desert is a desert where foggy weather is common, and it persists almost the whole year. Whereas every ...
2
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1answer
73 views

Are these the net radiation at surface, and the complete energy balance at surface?

Could not find these in my book but I found something I think might them online (is this correct): Net radiation balance: R_NET = SW↓ - SW↑ + LW↓ - LW↑ Complete energy balance: R_NET - G = H + LE ...
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0answers
29 views

Subterranean Climate System?

Do subterranean habitat have climate system(s)? Could it be placed in any or all of the known ones: tropical, subtropical, temperate etc. ? Is it unique?
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2answers
4k views

Where is the calmest place on Earth?

I have done some research online, and I've found out that Antarctica has the calmest winds (lowest maximum wind speed) recorded on Earth. However, it is uninhabitable for human life. Other very calm ...
2
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1answer
93 views

Volcano in ocean?

Is it a volcano in this image ? The magnified version. I was browsing through earth images here when I spotted this orange thing. Is it some oceanic volcano? It may be an absurd question but is it ...
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2answers
2k views

Fault Lines in North America

I was trying to figure out what areas in North America would be most likely to have earthquakes, but I couldn't come across a good map for this. It's easy to find the areas with the highest incidence ...
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1answer
61 views

Why is this area apparently unpopulated in the great Buenos Aires, what is it?

I'm not sure if I can ask this question here but it is the only Stack Exchange community where I saw the tag Geography. I was reading about the great Buenos Aires and I saw this night satellital ...
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1answer
52 views

The sun rises up at 7:30 in 25°E, What time will the sun rise up in 15°E?

I've a question about time calculating. The sun rises up at 7:30 in 25°E, What time will the sun rise up in 15°E? What I've tried $$25° - 15° = 10°$$ By the way $$10° . 4 = 40 \space \text {...
2
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1answer
107 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
2k views

Least populated time-zones [closed]

What are there any loneliest places on earth in term of population per time-zone? What is the answer for full hour time-zones (UTC+1,UTC+2..) and in other including for example UTC+4:30? SORRY I may ...
4
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1answer
52 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 ...
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3answers
286 views

Eclipse, Hurricanes, Earthquake…Related Events?

Forgive my ignorance, I'm out of my depth. My wife has pointed to the upsurge climate and geological activity post Eclipse. My immediate response, at least inwardly, was to reject her suspicion. ...
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2answers
274 views

How much atmoshphere is there compared to land and water

We know our earth has 71% water and 29% land, but compared to that land and water, how much air do we have in our atmosphere? I mean: How big is our atmosphere Is there any increase or decrease in ...
3
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3answers
136 views

Is there a better system than latitudes and longitudes? [closed]

I am a student programmer, with very little knowledge of geography and am working with maps for a project, and have to convert latitudes and longitudes to points on a screen (map to pixels). So my ...
2
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1answer
46 views

Does the length of a river depend on the scale of measurements?

Coastlines are highly fractal, leading to the coastline paradox: the length increases to surprisingly large numbers as your scale of measurement gets smaller. Does the same thing apply to rivers, ...
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2answers
131 views

What produces these distinct shapes in the Rub' al Khali seen from space?

update: Searching "Rub' al Khali Empty Quarter" found "Q2: What are sabkhas?" in https://www.geocaching.com/geocache/GC6BYQ0_rub-al-khali-the-empty-quarter which seems to be related. From the NASA ...
7
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1answer
145 views

Where is the Arctic Circle for civil and astronomical twilight?

The Polar Circles are located at 66°33′46.7″ North and South, defining the minimum latitudes at which, for at least one 24 hour period during the year, the limb of the Sun never becomes invisible ...
2
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1answer
63 views

Identifying different parts of a cave

Hopefully this is on topic here - I'm wondering if there are names for the different "biomes" that are present within a cave. Some of these "biomes" include: Open (no) ceiling, sunlit, potentially ...
5
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3answers
2k views

How do rivers last so long in dry weather?

I got caught in a downpour while climbing a mountain and was amazed to see, as I climbed down, the tiny trickles of water combine to form mini-streams, the dry rocks I had climbed up now hosted ...
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6answers
1k views

How to easily remember orientation of latitude and longitude?

Ever since the 3rd grade, I've been troubled by the inability to remember if Latitude runs East/West or runs North/South. I would always stress out BIG TIME during my Geography class. I'm much older ...
4
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1answer
89 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
67 views

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
1k views

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
80 views

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
115 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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1answer
139 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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1answer
507 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 ...