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43 votes
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How does global-warming-triggered ice melting cause global sea levels to rise?

Arctic ice, around the north pole floats on top of water. When it melts it does not add to sea level rises and likewise for other ice on water, as illustrated in this video and this video. Ice on land ...
Fred's user avatar
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32 votes
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Why does glacier ice look blue?

The short answer is: BECAUSE THE ICE IS BLUE. Now we have to explain why it seems perfectly transparent on ice cubes and industrial ice blocks. It has to do with the fact that most transparent ...
Camilo Rada's user avatar
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25 votes
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Why doesn't sea level show seasonality?

Sea level has a strong seasonal signal. The annual variability is less than the daily changes associated with tidal forcing in most locations, but still can be on the order of 5-10 cm (maximum values ...
arkaia's user avatar
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17 votes
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If there's more water in the atmosphere due to global warming, how are there fewer mountain glaciers?

Indeed some glaciers are growing and gaining mass due to increased precipitation (in part due to climate change and enhanced atmospheric water content). But that's the case only for glaciers in very ...
Camilo Rada's user avatar
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15 votes
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How could this pyramidal Mountain have been formed?

Such forms tend to be created by glacial activity, which, ahem, the ice-covered continent is known for. Much discussion of this in the related question in Skeptics: Are there three pyramids in ...
jeffronicus's user avatar
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14 votes
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What would it be like to live in an ice age?

It depends where, the continental landmasses at higher latitudes would be covered by massive ice sheets. Therefore the life in the sections of the US and Europe that are close to the Ice sheets would ...
Camilo Rada's user avatar
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14 votes

How does global-warming-triggered ice melting cause global sea levels to rise?

Because a lot of that ice is currently sitting on land. When it melts, it will go into the ocean. From the National Snow and Ice Data Center Page (NSIDC), Facts about glaciers: Presently, 10 percent ...
LShaver's user avatar
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14 votes

Is PhD the only way to study glaciers?

I'm a glaciologist; my career path started as an undergrad in astronomy and then a Master's and Ph.D. in geophysics. However, many other paths lead to glaciology, often starting from geology, ...
Camilo Rada's user avatar
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13 votes

Is PhD the only way to study glaciers?

The answer to your question lies in what you yourself expect to get out of "studying glaciers". The traditional way is of course through a PhD and to become a specialist on some aspect of ...
Peter Jansson's user avatar
12 votes
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Will increased precipitation in Antarctica prevent sea level rise?

There is some scope for continuing debate because quantifying the various components of the ice/snow/water balance are fraught with difficulty, and many of the estimates have error bounds which ...
Gordon Stanger's user avatar
12 votes

How are 'road-like passages' between Himalayan mountains formed?

It's a glacier, it this case the Baltoro Glacier in Karakoram, Pakistan. The road-like pattern is formed as the glacier slowly flows towards lower altitude from a nearby ice-cap or accumulation zone. ...
user2821's user avatar
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12 votes
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What is the name of this landform?

This is a large glacier calving event. Calving occur at the front of the glacier, probably a very wet (and likely warm based) glacier where a considerable amount of water is flowing out of the system (...
marsisalie's user avatar
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11 votes

Why did "Glaciologist Princess Elsa" have to leave the glacier because it was too warm?

I'm the scientist in the article; someone just saw this question and emailed me about it! (I'm on as a guest here since I don't have an account, so you'll hopefully trust it's me. Even if you don't ...
Celeste's user avatar
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10 votes

How will sea level rise be distributed across the globe?

There are many factors involved, so this is worth yet another answer. At the end of his/her answer aretxabaleta states: In general, the areas near the poles have a negative trend (sea level is ...
Jan Doggen's user avatar
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10 votes
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Esker vs. Kame vs. Drumlin - what's the difference?

Eskers are glaciofluvial deposits from sediment carrying subglacial tunnels. As the water emerges from a tunnel at the bed of an ice sheet or glacier it will slow down. Since the sediment movement ...
Peter Jansson's user avatar
9 votes
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Why do fjords have sills?

Fjords are formed as U-shaped valleys by the extreme erosion of glaciers. The glacier erodes large quantities of material that is transported by the ice. The glacier can erode deep under the sea ...
user2821's user avatar
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9 votes
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Can ice caps reform if they disappear?

Yes, polar ice can melt -- significantly, if not completely, with substantial effects on human civilization. And it can stabilize and recover, but the question is at what pace relative to human ...
jeffronicus's user avatar
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9 votes
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Is this 70km crack in an ice shelf of Antarctica remarkable, or a regular occurrence?

Is an iceberg the size of Delaware [6,451 square kilometers] actually remarkable, or something that just happens from time-to-time? In March 2000 iceberg B-15 formed which was 11,000 sq. km. and 295 ...
DavePhD's user avatar
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9 votes
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Considering how old the Antarctic ice cover is, why isn't it much thicker?

Ice floats with gravity towards lower elevation, the flow continues until the base of the ice sheet becomes floating and the ice forms an ice shelf or icebergs. Due to the subglacial topography, ...
user2821's user avatar
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8 votes
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How will sea level rise be distributed across the globe?

Sea level rise (SLR) is anything but spatially uniform. The satellite derived SLR rates that you present are a good example of the complexity of the spatial response. A good way to explore the ...
arkaia's user avatar
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8 votes

Is this 70km crack in an ice shelf of Antarctica remarkable, or a regular occurrence?

Developing since 2014, the crack was projected in 2015 to lead to "the largest calving event since the 1980s," according to this report in The Cryosphere journal by glaciologists studying the region. ...
jeffronicus's user avatar
  • 3,487
8 votes

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

As @gerrit commented, a precise calculation would need to incorporate a litospheric model to account for isostatic post-glacial rebound. But the "blurry approximation" you want, can be obtained based ...
Camilo Rada's user avatar
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7 votes
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Is glacier growing a hoax?

There is a decent explanation in Glacier Man Science 30 Oct 2009: Vol. 326, Issue 5953, pp. 659-661. (alternative link) Norphel’s idea was to divert the lost winter water from its course down the ...
DavePhD's user avatar
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7 votes

How could this pyramidal Mountain have been formed?

That mountain is mount Evans (3,950 m), located in the Sentinel Range in inner Antarctica (S 78.30698°, W 85.91698°), the highest mountain range in the continent. (Map courtesy of @KeithMcClary see ...
Camilo Rada's user avatar
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7 votes

Is a glacier advancing or retreating? How to tell?

The easiest way is to look a the glacier margins. If the ice is in contact with vegetation or rock covered in lichens or moss, it means it is most likely advancing. If you see a band of life-less rock ...
Camilo Rada's user avatar
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7 votes

How would Earth map look like if all ice melts?

Calculated Earth is one of the better tools for this, you can either zoom in and get various flood stages or set a specific flood stage and see what would flood, it is in metric though so you may need ...
Ash's user avatar
  • 4,550
7 votes

Are we at the beginning of a Heinrich Event?

Definitely not. A Heinrich event requires massive ice sheets to grow and then collapse in the Northern hemisphere. The large outflow of icebergs that would result form such collapse would deliver ...
Camilo Rada's user avatar
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7 votes
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Remote sensing of glaciers, season for data collection

Looking around at some random articles, for example Karpilo 2009, Geissler et al 2021, Litt et al. 2019, and Racoviteanu et al 2008 my impression is that researchers primarily use images of the ...
Matt Hall's user avatar
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6 votes

How do glaciers move? Could Antarctica be separated?

Glaciers move by two processes: Internal deformation Basal sliding This figure (made for my candidacy exam), exemplify both processes as if we were following a single block of ice within a glacier: ...
Camilo Rada's user avatar
  • 17.7k
6 votes

How do glaciers move? Could Antarctica be separated?

Glaciology is a large field of research, and I cannot include all aspects in a short answer. I'll try to give some concepts that can help you in your understanding of the cryosphere. Glaciers are, ...
user2821's user avatar
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