Sentences with phrase «only at their lower elevations»

The great ice sheets of Greenland and Antarctica, which rise to over 13,000 feet above sea level, accumulate ice over most of their surfaces and melt only at their lower elevations near the edges.

Not exact matches

Do regional sets of tree ring data exist which contain not only trees close to the alpine tree line but also at lower elevations?

Not only did Greenland Ice Sheet surface melt in 2012 occur over a bigger - than - average area, it also began about two weeks earlier at lower elevations and, for any given elevation, lasted longer.

Of course, this may only happen mostly on the 30 % land surfaces, predominantly at lower elevations, I would think — not on water covered surfaces where the heat capacity of water would limit the cooling or heating of the crust, although any part of the affected plate that is land bound would still lever the whole plate to or fro.