Wednesday, March 28, 2012
The icebergs are coming! The icebergs are coming!
I spotted my first few icebergs while in St John's this weekend. You know what that means? Spring has come to Newfoundland! (Or will be here soon - we did have 25cm of snow yesterday.)
Icebergs are similar to snowflakes - no two are the same, but with icebergs they do follow some classification system...
TABULAR: Steep sides with a flat top - like a big table. These are very solid and often break away from ice sheets or ice shelves. (like the one in the picture)
DOME: Well, sort of rounded, of course!
BLOCKY: A flat-topped, block-shaped icebergs with steep vertical sides.
WEDGE: As the name implies, it's like a wedge. The top narrows to a pyramid-like point.
DRYDOCK: An iceberg which is eroded to form a little U-shaped enclosure - like a drydock.
PINNACLE: An iceberg with one or more spires.