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How does climate change affect sea ice?
climate change affects the sea ice because if it is too hot the ice melts, and if it is too cold it will freeze.
How far does the sea ice extend around Antarctica?
Your answer depends on the time of year when you want to measure the ice. In winter, the sea ice freezes and almost doubles the size of the Antarctic continent. The edges of the ice are ragged and change, depending on the action of the liquid sea.
When sea ice forms does the surface water beneath the ice becomes less dense?
Sea ice formation is complicated for several reasons, but to answer your question (I think), there really isn't a change in density of the water below the ice. When it initially forms, much of the salt in the sea water becomes frozen in the nascent sea ice (and can take years to drain out). The small change in salinity of the water right below the ice would balance itself by convection in the uppermost layer of the ocean. Obviously, if the sea ice is going to float then it's going to be less dense than any of the water beneath it.
How does ice change the earth?
it will over flood the earths surface with melt water of the ice berg and detroy land under sea level
How is sea ice different to freshwater ice?
Sea ice contains frozen minerals, such as salt, that is not frozen into freshwater ice.
What is the maximum extent of sea ice in Antarctica?
During winter, the Southern Ocean sea ice freezes, essentially doubling the size of Antarctica. The extent of the sea ice is about 17 to 20 million square kilometers.
When does antarctica have the minimum extent of sea ice?
March.
How does climate change affect sea ice?
climate change affects the sea ice because if it is too hot the ice melts, and if it is too cold it will freeze.
What has been the trend in summer ice in the Arctic since 2007?
The trend in Arctic summer ice has been to set records for low ice extents.The NSIDC (National Snow and Ice Date Center) publishes monthly "Arctic Sea Ice News and Analysis". Some quotes from their website reveal the facts:A press release in October 2009 began:"At the end of the Arctic summer, more ice cover remained this year than during the previous record-setting low years of 2007 and 2008. However, sea ice has not recovered to previous levels. September sea ice extent was the third lowest since the start of satellite records in 1979, and the past five years have seen the five lowest ice extents in the satellite record."26 August, 2008Arctic sea ice dips below second-lowest recordIn late August, sea ice extent fell below the 2005 minimum, the second-lowest extent recorded since the dawn of the satellite era.8 September, 2009Winds cause sea ice to spread in AugustAtmospheric circulation patterns in August helped spread out sea ice, slowing ice loss in most regions of the Arctic. NSIDC scientists expect to see the minimum ice extent for the year in the next few weeks. While this year's minimum ice extent will probably not reach the record low of 2007, it remains well below normal: average ice extent for August 2009 was the third-lowest in the satellite record. Ice extent has now fallen below the 2005 minimum, previously the third-lowest extent in the satellite record.7 September, 2010End of summer approaches for Arctic sea iceArctic sea ice generally reaches its annual minimum extent in mid-September. This August, ice extent was the second lowest in the satellite record, after 2007. On September 3, ice extent dropped below the seasonal minimum for 2009 to become the third lowest in the satellite record
How was Arctic sea ice in 2011?
The extent of Arctic sea ice was the second lowest on record, and its volume was the lowest on record.This was announced by the World Meteorological Organisation in January, 2012.
Difference between sea ice extent and sea ice area?
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 happens to the sea level if all the sea ice melts?
Since sea ice is already located within the ocean, sea level will not change if it melts.
How has the arctic sea ice extent changed over time?
Over the last 100 years it has generally shrunk.
Is the sea ice around Antarctica greater in September or February?
Probably September, since its greatest extent is in June and it hasn't melted. In February, the sea ice has melted by exposure to sun 24/7, and has not yet frozen over.
What would another ice age result in a change?
sea level
How far does the sea ice extend around Antarctica?
Your answer depends on the time of year when you want to measure the ice. In winter, the sea ice freezes and almost doubles the size of the Antarctic continent. The edges of the ice are ragged and change, depending on the action of the liquid sea.
How much would oceans rise if all the ice in the world melted?
68.3 metres (224 feet)According to the Third Assessment Report of the International Panel on Climate Change, the ice contained within Greenland Ice Sheet represents a sea-level rise equivalent of 7.2 metres (24 feet).The ice contained within the Antarctic Ice-sheet represents 61.1 metres (200 feet) of sea-level change.(Arctic ice is sea ice, floating on water, so, like icebergs, its melting will not change sea levels.)So, if both the Antarctic Ice-Sheet, and the Greenland Ice-Sheet were to melt, sea-level would rise by 68.3 metres (224 feet).
