Questions tagged [coastal]

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15 views

How to determine the orientation of coastline from NetCDF file

I have a NetCDF file (gridded data) with a landsea mask. I would like to determine, for the coastal grid-cells, what the orientation of the coastline is. I need to do this in order to calculate the ...
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0answers
16 views

A few questions about the morphology and sediment dynamics of Wissant Bay (France)

Could someone please explain what exactly is shown on the following image? I have a few questions such as: How did the 'Banc à la Ligne' come about? (I know it has something to do with the fact that ...
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1answer
28 views

How reliable is sea-ice concentration (fraction) data in ERA-Interim?

I am using sea-ice data from the European Reanalysis from ECMWF (ERA Interim), but some grid cells over land have sea-ice information. Not a big issue so far, because spatial discretization must ...
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0answers
31 views

What causes these shapes in the coast of the Levant?

Along the coast of the Levant (maybe also in other places), there are some very distinct discontinuities such as these. It may be nothing at all, but they stood out to me. Now I was wondering if there ...
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1answer
39 views

Do desalination plants affect the ground water table?

I saw an article recently in the newspaper stating that a desalination plant near the seashore was causing the ground water to become saline. Usually I would expect that areas where saline water ...
4
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1answer
73 views

Are beaches found all along the coast? If not, what is required for them to be formed?

Why are beaches not found all along the coast? If not beaches, what else can be found along the coast.
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0answers
82 views

Why Coastal catchments should be appended for watershed analysis (Archydro Suggestion)?

I'm a GIS specialist with a good background in watershed hydrology and geomorphology theories. In a project, I should analyse coastal and inland catchments separately. I have some neighbourhood ...
4
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1answer
86 views

High tides at Venice

I read somewhere that the new MOSE system can withstand a maximum rise in water of about 3m. I was wondering if that extreme case will happen on the coast line of Lido di Venezia, there will be a ...
8
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1answer
144 views

Light at the coast - is it different?

I have heard artists talk about the unique quality of light near the sea, and now I live near the coast I want to know if there's any truth in it. Does being near the ocean affect light inland? I'm ...
2
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1answer
163 views

Determing whether an area is Inland or Coastal

I have determined an area to be along the coastline just from looking at its climagraph. Its temperatures only range from -10 to 21 so there is not a large range of temperatures because it is being ...
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2answers
2k views

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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2answers
2k views

What factors bring sand into or out of the beach?

I like to walk my dog along a beach, but in medium to high tide, there is no beach at all, as the water reaches the bluffs. The thing is, the height of the sand seems to vary drastically as well. ...
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2answers
197 views

What causes such a narrow slit in a cliff? (see photo)

I have this photo as a background image and I often wonder how such a narrow, well-defined slit could be formed. Is it natural or man-made? If natural, what processes could have formed it? The rest of ...
4
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1answer
177 views

Why pro-gradation occurs along coastal environments?

I am currently studying the deposition process in coastal environments and I came across a point which I do not understand concerning grading of grain size. According to "Petroleum Geology by North F....
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2answers
556 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 ...
9
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1answer
184 views

Continental collision – evidence left of river mouths and estuaries along the boundary?

Are there any examples of now completely landlocked former river mouths or estuaries that became so after continental collision? As an example, consider the closure of the ocean between India and the ...
4
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1answer
81 views

What causes variation of seabed depth relative to fixed chart datum?

Please refer to this page of coastal wiki. Quoting: ...the reconstructed overall vertical position [of the seabed] with respect to a fixed chart datum may vary by more than 10 cm from survey to ...
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3answers
8k views

Is there a reason most mountain ranges seem to run parallel to coastlines?

Eyeballing a map of the world, it seems that most mountain ranges that don't occur along continental fault lines run parallel to coastlines. Is there a reason for this?
9
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1answer
20k views

Why does it rain more at night than during the day?

I'm living near a sea, and it rains mostly and heavily at night from 11 PM to 3 AM. The weather is mostly clear during daytime. Air is generally cooler at night, and cool air holds less moisture ...
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2answers
295 views

How can I improve the numerical stability of a coastal hydrodynamic model?

I am working with a coastal hydrodynamic model in the MIKE3 modelling package. MIKE3 uses the finite volume method to solve the shallow water equations with explicit timestepping, over a triangular ...