Vatnajökull National Park
On the mountains and the ice cap itself, annual rainfall can range from 4,000 to 5,000 mm, most of it falls as snow. The thickness of the snowpack on Öræfajökull can vary between 10 and 15 m. Part of the snow melts while the rest of the snow forms the glacier ice. This process takes place everywhere above the snow line on the Vatnajökull ice cap.