Porthandbuoy
Well-Known Member
Here’s an interesting website for anyone interested in rising sea levels. Sea Level Trends.
Sea Level Trends
- Thread starter Porthandbuoy
- Start date
ctva
Well-Known Member
That’s a relief, I’m ok for the next 2000 years. 
johnalison
Well-Known Member
Why, if the local levels are rising, does everywhere I sail seem to get shallower every year?
This is just a whinge from an inefficient navigator, but there are some strange anomalies. I believe that part of Sweden in the Gulf of Bothnia holds the record for the greatest rate of rise of land, where you can almost watch the land going up.
This is just a whinge from an inefficient navigator, but there are some strange anomalies. I believe that part of Sweden in the Gulf of Bothnia holds the record for the greatest rate of rise of land, where you can almost watch the land going up.
Boathook
Well-Known Member
I haven't got to much to worry about.
dunedin
Well-Known Member
Yes in Sweden you are supposed to adjust charted depths for land rise since the Chart was printed.
Currently starting to change charts to a new Baltic datum - which I think is land referenced so will no longer need to do this.
But as electronic charts like Navionics don’t seem to be able to show you the actual datum in use, for the ext few years it will be guesswork as to what the actual depths are.