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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.

18
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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?
5
votes
2answers
1k views

What percentage of Earth's surface is arid?

Is there available information on how much of Earth surface is arid climate?
2
votes
0answers
21 views

Is there any downscaled income data for representative concentrations pathways?

I know that downscaled income data existed for The Special Report on Emissions Scenarios (SRES) Scenarios for IPCC's climate change scenarios. (http://ciesin.columbia.edu/datasets/downscaled/) For ...
0
votes
1answer
124 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 ...
3
votes
1answer
53 views

Great circle in UTM coordinates

I've got a question about calculation of great circles in Cartesian coordinates: Is it possible to compute points along a great circle in UTM coordinates, i.e. given two points P1(easting1, northing1)...
1
vote
2answers
88 views

What is the collective name for the seas of Indonesia?

The seas in Indonesia or Sunda Shelf or Southeast Asia separates the Indian Ocean and Pacific Ocean. The seas in Indonesia itself are broken into many parts due to presence of islands such as Sunda ...
-2
votes
2answers
80 views

What are the farthest Time Zone locations? [closed]

What place in the world has the farthest time zone? I heard it was Kiribati but then I found that Apia (Samoa) is further. So, is there anyplace that is the farthest in time than these two? What about ...
2
votes
2answers
49 views

Data for plotting tephigrams

I want to plot some tephigrams. Where can I find pressure, temperature and dewpoint data in text format?
6
votes
1answer
210 views

If ALL the ice melted, what percentage of the Earth's surface would be water?

At the present time, about 70% of the earth's surface is liquid water (perhaps that includes floating ice around Antarctica, and the Arctic Ice cap). What percentage of the Earth's surface would be ...
5
votes
1answer
170 views

Would more or less land be usable if global temperatures rose?

I think a large portion of the earth's land is unusable from being too cold and land that is too hot does not have enough water and dries out which could be fixed by diverging water to those areas. ...
4
votes
1answer
239 views

Why does more sunlight hits the equator than the ecliptic path?

I've always been told that the equator is the region on Earth that receives the most sunlight. But I wondered, since the ecliptic is the circular path that the Sun appears to follow over the course ...
71
votes
17answers
32k views

Are there any saltwater rivers on Earth?

I'm curious if there are any saltwater rivers on Earth. These would presumably arise if a saltwater lake had a river outlet to the ocean. However, all the saltwater lakes I looked at (Caspian Sea, ...
6
votes
1answer
83 views

Which mountains (or hills) are visible from both Boston and Rhode Island?

In the description of the Norse exploration of America, there are two places mentioned, "Hop" and "Straumfjord", with some relationship to the same mountains. E.g. The finding of Wineland the Good, p....
5
votes
2answers
3k 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 (...
8
votes
1answer
2k views

How did the Ural mountains form?

A nice picture for "how mountains formed" on Earth is due to the motion of tectonic plates. As the plates crash together, mountains may get "pushed upwards". However, a quick look at a map of the ...
11
votes
1answer
184 views

Lake outflow forming a “reverse delta”?

While rivers often form a delta when they flow into a lake, the outflow of a lake is usually a single stream. Are there lakes where the water flows off in multiple channels that merge into a single ...
9
votes
2answers
289 views

What are the sunniest places on Earth? (including oceans)

This question did arise when thinking on offshore solar power plants, what's their potential, and how efficient would they be compared with land based counterparts. Recently, it is becoming more ...
18
votes
2answers
5k 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
votes
2answers
70 views

mountain database of elevation and distance from saddle (as a proxy for gradient)

I'm interested in doing data visualization projects about mountains. We have data from http://www.peaklist.org/ultras.html complied by Aaron Maizlish (Who we tried to contact but not sure of his ...
1
vote
1answer
125 views

What is an isolated land area of one type of rock surrounded by land of a differing rock type called?

For example, if there were a large land area with exposed basalt, in the middle of which is a smaller isolated patch of Granite, what is that isolated patch called? I came across the single-word ...
13
votes
1answer
439 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? Is there a chart on sea breezes wind speed that include lakes? Could a circular lake create enough sea breeze to create a wind vortex in the ...
8
votes
2answers
807 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 ...
-1
votes
1answer
37 views

How to determine (lost) surface (km²) of a country when both population and population density have changed? [closed]

I am not sure if the question suits in this stack board, but I give it a try. Let's assume there is a country with a population of 327 million people and a surface of 9.6 million km², resulting in 34 ...
12
votes
2answers
244 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 ...
1
vote
1answer
65 views

Sink holes in drainage area

I live in Florida (aka the land of sink holes). Due to the flat nature of my area, it is common place for housing developments (and any developments really) to dig large drainage areas to give water ...
81
votes
6answers
20k views

What place on Earth is closest to the Sun?

What is the location on Earth that is closest to the Sun? I've seen this question asked many times, and answered in varied and contradictory ways: The most common answer is “the summit of Chimborazo ...
7
votes
4answers
20k views

Why do we say Earth rotates from west to east?

It is said that Earth rotates from west to east. I take this as Earth's western hemisphere moves towards the Eastern hemisphere when seen from the frame of reference of pole star. Now I can also ...
1
vote
2answers
946 views

Erosion without weathering?

In one of my Geography books, the following sentence is written: Though weathering aids erosion, it is not a pre-condition for erosion to take place. How can I justify this? Almost all the forms of ...
13
votes
5answers
23k views

(Why) Is there more landmass on Earth's Northern hemisphere than the Southern Hemisphere?

This Question on Worldbuilding is based on the presumption that there is a greater amount of landmass on the Earth's Northern Hemisphere than there is on the Southern Hemisphere. While researching ...
3
votes
1answer
68 views

Before the artificial changes of the Aral Sea, what was its average depth and salinity?

The Aral Sea was a major lake of the USSR until it suffered artificial changes, which began sometime no later than the 1960s. I am unfortunately not sure when major artificial changes began. ...
2
votes
0answers
64 views

Which software is easiest to use to create plots like these? [closed]

There seems to be many options for a single problem, but each with different approaches and complications, and that makes is confusing and time consuming for this beginner to work out which to use. I'...
3
votes
1answer
78 views

Is the representation of Earth oriented correctly in this image?

Is there something wrong with this image? I found it in Wikipedia's article Ecliptic coordinate system and the image's source page is here. What bothers me is the orientation of the Earth's surface (...
3
votes
2answers
411 views

Is this a contradiction in Wikipedia's definition of temperate zone?

Under the Wikipedia article Temperate climate Temperate climate in the introduction is describes: In geography, the temperate or tepid climates of Earth occur in the middle latitudes, which span ...
10
votes
1answer
171 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 ...
11
votes
3answers
11k views

In the northern hemisphere only, what percentage of the surface is land?

Across the whole Earth, about 70% of the surface is water and 30% is land. What I want, though, is to restrict the scope to the northern hemisphere (NH) only. What percentage of NH surface is land? ...
0
votes
2answers
118 views

Time of concentration - Difference between large and small basins

I am looking for any academic reference (i.e. articles) regarding the time of concentration for large and small basins. E.g. I would expect that a large basin (area > 1,500 km^2) will flood (or reach ...
1
vote
1answer
71 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 ...
1
vote
0answers
33 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 ...
5
votes
3answers
82 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 ...
6
votes
1answer
5k 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 ...
3
votes
1answer
177 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?
1
vote
0answers
23 views

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 ...
7
votes
1answer
97 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 ...
2
votes
0answers
135 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 ...
0
votes
1answer
51 views

Temperature graph for solar

Just wondered if this was accurate. Sorry for poor grammar. Typing on pgomw.
6
votes
2answers
278 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 ...
0
votes
2answers
58 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? ...
4
votes
1answer
162 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 ...
0
votes
2answers
184 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, ...
4
votes
2answers
89 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 ...