Questions tagged [topography]
The topography tag has no usage guidance.
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What is this mountainous relief feature?
I was going through an old Indian survey map, when I saw this unfamiliar relief feature. It looked like a cross between a hachure and saddle. Could someone help identify it?
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How to remove effect of topography on Air temperature in Excel?
I traversed a route in a city. The route has different elevation. So I need to remove the effect of elevation from my air temperature measurements. The measurements done by temperature data logger ...
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Does Everest have a topographic isolation?
Here are three definitions of "topographic isolation".
Wikipedia
The topographic isolation of a summit is the minimum distance to a point of equal elevation, representing a radius of ...
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Are there any (land) hills/mountains with bases below sea level?
There are areas of land that are in fact, below sea level. Are there any hills or mountains that have bases that start in these below-sea-level areas of land?
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Biggest discrete spire on earth?
I was sniffing around some Mariana topo maps yesterday and found a really discrete spire that seems to start at 35,000 ft and rise to 8,700, making it 26,000 ft tall. As per the attached pictures. Is ...
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ETOPO1 region selection (in python)
I am trying to select a region in the Mediterranean Sea from the ETOPO1 data.
...
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Topographic differencing using lidar
I have two lidar images which I want to use to do a topographic differencing. The two lidar images are of different spatial resolutions and are not co-registered. What is the best method to line the ...
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What are these 'spine' land features on the banks of the Oder river?
Looking around on Google Maps, one can zoom in on the banks of the Oder river between Germany and Poland and find quite an extensive series of curious repeating land features along much of the river ...
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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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What are the parallel horizontal lines on Google's satellite images? [duplicate]
On Google Earth I noticed many straight lines. While looking for answers for their existence, I came across this Quora answer, which provided a good response for why there are converging lines to ...
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Where can I find a list of mountain chains on the Earth?
I want to make an app for smartphones that lists the mountain chains of the world.
Where can I find a list of all mountain chains that are presently outspread on the Earth?
user20559
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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.
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Now I ...
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Why are the south, the west and the north of the Caspian sea lush but its east completely dry?
About the Caspian sea area today:
The south is very lush with the subtropical forests of the Iranian provinces of Gilan, Mazandaran and Golestan (although less "tropical" in Golestan)
The ...
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What does the term "topology" mean in geology?
What does the term "topology" mean in geological sciences? Is there an agreed upon distinction between the two terms "topography" and "topology"?
When trying to answer ...
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How are mGal-smooth free-air gravity anomaly measurements made exactly? (tiny variations of acceleration on a bumpy airplane ride)
Free-air gravity anomaly measurements from Operation Icebridge aircraft are described in A fault-bounded palaeo-lake basin preserved beneath the Greenland Ice Sheet (open access).
Question: These ...
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Calculation of river width in relation to contributing area
I'm looking for a mathematical method to estimate the river width based on the basic topographic information of the specific sections of stream under consideration.
Is there a formula to estimate the ...
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What causes the "ripples" that extend east-west along the mid-atlantic ridge?
Below are two cropped screenshots from the super-cool video Draining Earth's oceans, revealing the two-thirds of Earth's surface we don't get to see with the oceans "drained" to 4000 and 5000 meters ...
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Public sources of topographical data of Earth?
I would like to find sources of topographical data for Earth's surface.
I've looked in GIS SE and Open Data SE but haven't found a good answer to this so I though I'd ask here in Earth Science.
Are ...
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Topography and flash flooding
I'm looking for a study or document showing the effect of the topography, slopes, the sea level and the tide on flash flooding occurrence.
Thanks in advance
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How to plot orography for vertical profile of a certain variable along pressure levels in GRADS
I am using GRADS (1, 2, 3) to plot ERA reanalysis relative humidity profile for latitudinal average of 15N to 37N, and along the longitude from 40E to 130E. The orography is quite obvious and thus ...
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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 ...
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How is Karst topography formed on land?
I read that the source of Karst topography is coral reefs, when coral reefs are found in water bodies, how is karst topography formed on land?
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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 ...
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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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What processes created these apparent topographical anomalies in North California?
In the attached topographical map, you can see some strong topographic features in Northern California — elongated foothills below Mt. Tamalpais. You can also see, circled, some apparent anomalies. ...
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What's the difference between topography and orography?
Both seem to be a study of a planet's surface. Topography seems to have more to do with the graphical depiction of surface features, but there seems to be a lot of overlap...
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Details on Ocean floor
Taking for example the attached image, when looking at the ocean floor, there appears to be areas (strips, some of which I have drawn red lines by) of greater detail. Is this accurate detail? From ...
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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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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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What are the striations or ridges in the eastern Pacific Ocean?
Messing around on Google Earth recently I noticed a number of striations in the Eastern Pacific. These appear in an East-West orientation and seem to start on the North and South American continental ...
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Why does Google maps (in terrain mode) space thier topo lines 80 feet apart?
Is 80 feet some sort of standard?
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Does bathymetry affect ocean topography/height?
Here is a map of ocean surface height or topography:
Source: http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/12/mean_dynamic_topography_of_global_ocean/9930795-2-eng-GB/...
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What are the non-anthropogenic causes of The Netherlands' low elevation?
A large area of The Netherlands is below sea level. There are two non-anthropogenic reasons that I can think of:
Compaction of delta sediments that lie below the country,
A side effect of the ...
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Would it be geographically feasible to store water on land to counteract sea level rise?
Based on a misunderstanding of another post, I prepared an estimate of how much water would be required to lower sea level by one meter. the main question would be: could this be stored on land?
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Farthest point from the center of the Earth
At first glance, this seems like such a simple question of "What's the highest point on Earth". However, I also know that the Earth isn't perfectly round. So that "highest point" may be in a ...
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What are the causes of lower UV radiation at lower elevations?
After recently visiting the Dead Sea in Israel and not getting any skin burns, I was wondering about the reasons for that. Searching the literature, it seems that the UV radiation is indeed lower in ...
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Determining the paleoelevation of mountain ranges
In New Delhi, a lot of people say that the
Aravali range used to be as tall as the Himalayas. How do scientists know that some mountain range used to be a lot taller millions of years ago, and what ...
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