Tidewater glaciers are glaciers that terminate in the sea, including most glaciers flowing from Greenland, Antarctica, Baffin and Ellesmere Islands in Canada, Southeast Alaska, and the Northern and Southern Patagonian Ice Fields. As the ice reaches the sea, pieces break off, or calve, forming icebergs. Most tidewater glaciers calve above sea level, which often results in a tremendous impact as the iceberg strikes the water. Tidewater glaciers undergo centuries-long cycles of advance and retreat that are much less affected by the climate change than those of other glaciers. COUNT 5
QSN1 What are glaciers called that end in the sea? ANS1 Tidewater glaciers QSN2 Most glaciers from Greenland, Antarctica, and Southeast Alaska are of which type? ANS2 Tidewater glaciers QSN3 Are tidewater glaciers more or less affected by climate change than other glaciers? ANS3 much less QSN4 Do tidewater glaciers calve above or below sea level? ANS4 above QSN5 How are icebergs formed? ANS5 As the ice reaches the sea, pieces break off, or calve