During the history of the Earth, sea levels have varied dramatically from present conditions. During the peak of the last ice age 18,000-20,000 years ago, sea level is estimated to have been about 120 meters (400 feet) lower than it is now. If the vast ice sheets covering Greenland and Antarctica were to melt completely, sea level would rise approximately 80 meters (260 feet) higher than the current value.
Today's concerns about rising carbon dioxide concentrations in the atmosphere and the resulting warming of the world are tied closely to rises in the height of the oceans. In the past, higher atmospheric carbon dioxide levels correlated to elevated global temperatures. Temperature changes of only a few degrees have resulted in dramatic expansion and shrinkage of polar ice and glaciers, leading to pronounced sea level changes.
Sea Level Deluxe for World Wind allows you to explore the range of sea levels from distant prehistory to potential future scenarios. It is a greatly expanded version of the popular free Sea Level Standard add-on. It contains many added new features, including higher resolution, more maps, contours, flood zones and at-risk cities.
During the history of the Earth, sea levels have varied dramatically from present conditions. During the peak of the last ice age 18,000-20,000 years ago, sea level is estimated to have been about 120 meters (400 feet) lower than it is now. If the vast ice sheets covering Greenland and Antarctica were to melt completely, sea level would rise approximately 80 meters (260 feet) higher than the current value.
Today's concerns about rising carbon dioxide concentrations in the atmosphere and the resulting warming of the world are tied closely to rises in the height of the oceans. In the past, higher atmospheric carbon dioxide levels correlated to elevated global temperatures. Temperature changes of only a few degrees have resulted in dramatic expansion and shrinkage of polar ice and glaciers, leading to pronounced sea level changes.
Sea Level Deluxe for World Wind allows you to explore the range of sea levels from distant prehistory to potential future scenarios. It is a greatly expanded version of the popular free Sea Level Standard add-on. It contains many added new features, including higher resolution, more maps, contours, flood zones and at-risk cities.
During the history of the Earth, sea levels have varied dramatically from present conditions. During the peak of the last ice age 18,000-20,000 years ago, sea level is estimated to have been about 120 meters (400 feet) lower than it is now. If the vast ice sheets covering Greenland and Antarctica were to melt completely, sea level would rise approximately 80 meters (260 feet) higher than the current value.
Today's concerns about rising carbon dioxide concentrations in the atmosphere and the resulting warming of the world are tied closely to rises in the height of the oceans. In the past, higher atmospheric carbon dioxide levels correlated to elevated global temperatures. Temperature changes of only a few degrees have resulted in dramatic expansion and shrinkage of polar ice and glaciers, leading to pronounced sea level changes.
Sea Level Deluxe for World Wind allows you to explore the range of sea levels from distant prehistory to potential future scenarios. It is a greatly expanded version of the popular free Sea Level Standard add-on. It contains many added new features, including higher resolution, more maps, contours, flood zones and at-risk cities.
Sea Level Deluxe for NASA World Wind