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Here is the definition from NSIDC:
Total ice-covered area is defined as the area of each pixel with at least 15 percent ice concentration multiplied by the ice fraction in the pixel (0.15 to 1.00). Total ice extent is computed by summing the number of pixels with at least 15 percent ice concentration multiplied by the area per pixel, thus the entire area of any pixel with at least 15 percent ice concentration is considered to contribute to the total ice extent.
What else can I help you with?
What is the difference in thickness between arctic sea ice and Antarctic land based ice sheet?
Arctic sea ice is typically between 1-3 meters thick, while Antarctic land-based ice sheets can be several kilometers thick. Antarctica contains the largest ice sheet in the world, with an average thickness of about 2,160 meters.
What is the difference between an ice sheet and a ice berg?
An ice sheet is a large mass of glacial ice that covers land, while an iceberg is a large floating mass of ice that has broken off from a glacier or ice shelf and is floating in the ocean. Ice sheets are stationary, while icebergs can drift with ocean currents.
What is the difference between the temperature and in the ice age?
The temperature during an ice age is significantly colder than in current times, resulting in extensive ice sheets and glaciers covering large areas of the Earth. In contrast, the temperature in current times is relatively warmer, with less ice cover and more habitable regions for human and animal populations.
What is the difference between glacial and interglacial?
Glacial periods refer to times of extensive ice coverage on Earth, while interglacial periods are warmer intervals between glacial periods when the ice retreats. Glacial periods typically involve lower global temperatures and ice sheet expansion, while interglacial periods are characterized by higher temperatures and diminished ice coverage.
What is the difference between alpine and continental glaciers?
Alpine glaciers form in mountainous regions and are confined within valleys or cirques, while continental glaciers are large ice sheets that cover vast land areas. Alpine glaciers are typically smaller and more fragmented compared to the continuous ice sheets of continental glaciers.
What is the temperature difference between crushed ice and cubed ice?
Nothing. Both are the same thing, so they're the same temperature. The difference is in the amount of surface area - crushed ice has more surface area per volume than cubed ice, but doesn't last as long. This is why you might perceive a temperature difference between the two.
What is the difference between erosional landforms and depositional landforms?
Erosional landforms dominate an area where the ice flows to, while depositional landforms are found where ice flows from.
What are the difference between slow ice and fast ice?
tee hee
What is the difference in weight between ice and water?
The difference in weight between ice and water is that ice is less dense than water, so a given volume of ice weighs less than the same volume of water.
What is the difference between ice and butter?
please anyone
What is the difference between a glacier and an ice mound?
One is smaller
Difference between softy and ice-cream?
softy s soft ice cream :P
What is the difference between Breyers Ice cream and their ice cream frozen desserts?
none but awesomeness
What is the difference between two things?
The difference between two things is what traits or characteristics set them apart; why they are different. For example:Water and IceThe difference between water and ice is that water is a liquid and water is not. Another thing is that ice is very cold and water can be warm.
What is the difference between ice cream and Hawaiian ice cream?
hawaiian ice cream is pretty much snow cone and ice cream is ice cream
What is the difference between sea-based and land-based ice?
Hsusbsbsn
What is the difference between scientific method and socratic method?
ice baby
