According to Robert Bindschadler, the map will enable scientists to______. [br]

游客2023-12-10  58

问题 According to Robert Bindschadler, the map will enable scientists to______. [br]  
The Landsat Image Mosaic of Antarctica, or LIMA, pieces together 1,100 images to provide a new map 10 times more detailed than any made before. This true-color map of the full continent took eight years to compile from satellite pictures and is now freely available to the public over the Internet.
    Robert Bindschadler is a chief scientist at the US space agency NASA’s Goddard Space Flight Center. Bindschadler told a news conference Tuesday that the new satellite images provide a time-lapse historical record of how Antarctica has changed. The map will enable scientists to continue to watch changes unfold, such as the movement of glaciers. Bindschadler says researchers can use the map to better plan scientific expeditions, geologists can better trace rock formations and biologists can obtain snapshots of the levels of lakes in Antarctica’ s desert ecosystems.
    Collaborators on the mapping project include the US Geological Survey, the National Science Foundation and the British Antarctic Survey. British researchers say the new images will be key to understanding climate change because Antarctica has experienced a temperature rise of almost three degrees in the last 50 years— almost 10 times the global average. They add that more than 80 percent of glaciers on the continent are now in a state of retreat, ice shelves are breaking up, and snow is melting at a faster rate.
    The Landsat 7 satellite is expected to continue taking images of Antarctica and other parts of the world through 2011.

选项 A、It has experienced a temperature rise of about 5 times the global average.
B、It has experienced a temperature rise of about 3℃ in the last 50 years.
C、More than 60 percent of glaciers on it are now in a state of retreat.
D、Its ice shelves are melting at a faster rate.

答案 B

解析
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