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4meAndyou · F
I haven't witnessed any differences myself. I live three blocks from the harbor. A lot of people say that sea levels are rising, especially further south, in Miami, but they would rise equally everywhere, wouldn't they? And I haven't seen our harbor's level change at all.
When I lived further inland, I experienced a lot more snow, and because I now live so near the ocean, there is quite a bit less.
When I lived further inland, I experienced a lot more snow, and because I now live so near the ocean, there is quite a bit less.
ArishMell · 70-79, M
@4meAndyou Apparently the rise is not uniform, and to complicate matters further there a few areas of land that are rising or sinking - though at rates no more than a few millimetres a year.
This came up as a question at a recent geological lecture I attended, from someone who operates a tourist pleasure-trip boat on a tidal estuary. He asked if there had been any noticeable sea-level rise around the British Isles.
The UK's Ordnance Survey uses a tidal datum established in the 19C at Newlyn, in the far South-West of England so not affected significantly by the English Channel.
One member of the audience could answer it, and held up his hand to indicate the approximate rise over that time, recorded at that datum. So somewhere between 70 and 100mm (3-4") rise for the NE Atlantic over more than century. That does include a contribution by the continental Crust below the South of mainland Britain subsiding (Scotland is correspondingly rising), but that will be only a very small component of the change.
This came up as a question at a recent geological lecture I attended, from someone who operates a tourist pleasure-trip boat on a tidal estuary. He asked if there had been any noticeable sea-level rise around the British Isles.
The UK's Ordnance Survey uses a tidal datum established in the 19C at Newlyn, in the far South-West of England so not affected significantly by the English Channel.
One member of the audience could answer it, and held up his hand to indicate the approximate rise over that time, recorded at that datum. So somewhere between 70 and 100mm (3-4") rise for the NE Atlantic over more than century. That does include a contribution by the continental Crust below the South of mainland Britain subsiding (Scotland is correspondingly rising), but that will be only a very small component of the change.
4meAndyou · F
@ArishMell It's natural for levels to rise and fall over time, apparently. I am interested in history, and I heard that the remnants of Noah's ark were discovered in the Ararat mountain chain in Turkey. The wood of which the ark was built is now petrified. At any rate, during the same show, they mentioned that 49% of the original land mass of Turkey had been submerged.
