Glaciers, icebergs, ice shelves?

Question

How can I tell apart one from the other?

I'm sort of familiar with glaciers and icebergs, but what in particular are ice shelves? How are they formed?

Thanks to everyone !!

Answer 1

glaciers are like frozen lakes or rivers they cause u shaped valleys n stuff

they are formed when the winter snowfall is more than the amount of snow that melts in the summmer and so it ccumulates and makes a glacier

ice sheets (i think tehy're the same as ice shelves) are HUGE sheets of ice like greenland

sozz i dont know what a iceberg is

have a look at bbc bitesize - glaciers

its very helpfull

: ) x

Answer 2

go to redtube.com it has videos about the earth and its cycle

let ur parents watch it too once you first go on its really cool

Answer 3

An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are found in Antarctica, Greenland and Canada only. The boundary between the floating ice shelf and the grounded (resting on bedrock) ice that feeds it is called the grounding line. When the grounding line retreats inland, water is added to the ocean and sea level rises.

Answer 4

A glacier is a river of ice.

An ice shelf is an over hang of ice on a glacier.

An iceberg is what sheared off from a glacier and floated away.

Answer 5

It don't matter. The earth won't have any in a few years.

Answer 6

All 3 are manifestations of water in all its different forms.  What's more important to understand is where all the water is coming from.  Aerobic Respiration produces water vapor and CO2.   This means that the more animals respiring, and the more people working, dancing , playing sports, etc., on this planet,  the more fuel (food) they burn for energy and the more water vapor and CO2 they add to the atmosphere. So the sea levels are rising, flooding is catastrophic and all the islands will go under water someday.  Think of all the cigarettes being lit.

Combustion:

Butane C4H10 + 6.5 O2 --> 4 CO2 + 5 H2O

Aerobic Respiration:

C6H12O6 + oxygen --> 6 CO2 + 6 H2O + energy

Unless we can tear ourselves away from Earth and learn to build atmospheres and geodynamos on the 166 moons in our own solar system, then we're doomed. Building dynamos on globes that rotate is the study of geophysics and MHD magnetohydrodynamics.  

Write to your space agency to transport water and supplies to the moons, and Mars.  Petition them to build farms and fast food restaurants on the moons and Mars.

When sugary and oily foods are metabolised, it also produces water vapor and CO2, part of the Krebs/Citric Acid cycle:

Table Sugar (sucrose):

C12H22O11 + 12 Oxygen --> 12 CO2 + 11 H2O + energy (ATP)

Vegetable Oils:

C57H104O8 + 79 O2 --> 57 CO2 + 52 H2O + energy (ATP)

Vegetables and grains:

C6H10O5 + 6 Oxygen --> 6 CO2 + 5 H2O + energy (ATP)

Proteins:

Proteins + Oxygen --> CO2 + H2O + urea + ammonia + energy (ATP)

Answer 7

yeah.. seriously.. earth wont have n e in a few years .. its doesn't matter... i hate tht.. the worlds dying n no 1's doin n e thing....

Answer 8

An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are found in Antarctica, Greenland and Canada only. The boundary between the floating ice shelf and the grounded (resting on bedrock) ice that feeds it is called the grounding line. When the grounding line retreats inland, water is added to the ocean and sea level rises.

In contrast, sea ice is formed on water, is much thinner, and forms throughout the Arctic Ocean. It also is found in the Southern Ocean around the continent of Antarctica.

Ice shelves flow by gravity-driven horizontal spreading on the ocean surface. That flow continually moves ice from the grounding line to the seaward front of the shelf. The primary mechanism of mass loss from ice shelves is iceberg calving, in which a chunk of ice breaks off from the seaward front of the shelf. Typically, a shelf front will extend forward for years or decades between major calving events. Snow accumulation on the upper surface and melting from the lower surface are also important to the mass balance of an ice shelf.

The thickness of modern-day ice shelves ranges from about 100 to 1000 meters. The density contrast between glacial ice, which is more dense than normal ice, and liquid water means that only about 1/9 of the floating ice is above the ocean surface. The world's largest ice shelves are the Ross Ice Shelf and the Filchner-Ronne Ice Shelf in Antarctica.

Answer 9

An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are found in Antarctica, Greenland and Canada only.

iceberg - A massive floating body of ice broken away from a glacier. Only about 10 percent of its mass is above the surface of the water.

glacier - A huge mass of ice slowly flowing over a land mass, formed from compacted snow in an area where snow accumulation exceeds melting and sublimation.