OpenStreetMap
Mapping coastlines from Kayak
Skrive av emj 29 august 2011 på English Sist oppdatert 31 august 2011.So I've had this dream for three years to map coastlines with kayak, I've come up with many concepts but they are all very hard to implement. The biggest problem is that coast lines are very long if you are going to map every little detail, and you can't kayak that close to the coast all the time (it would make me crazy
So how do I do it?
Discussion
Kommentar frå liftarn, 29 august 2011 kl. 13:55
Well, how much detail do you think is necessary? Set your level of amition and then work it out from there.
Kommentar frå chriscf, 30 august 2011 kl. 04:55
I would suggest that actually the biggest problem is that coastlines are generally taken to be high water, which implies that for anywhere with a tidal beach the bit you want is not usually covered in water. That might pose a problem for the kayak. ;-)
Kommentar frå z-dude, 30 august 2011 kl. 07:13
You might want to consider mapping the spots that you'd want to share with friends, or interesting spots.
ie.. if you know of a ghost town along the coast, or know where the lost city of atlantis is.. it'd be fun to map.
Kommentar frå emj, 30 august 2011 kl. 07:39
@crishcf: well I live in Sweden known for its long coastline and many islands, but I've never experience tidal effects here. Apparently the >Gulf of bothnia tidal effects< are very small, because of the narrow strait connecting us with the North Sea. So max ~20cm in amplitude, but that's in the strait
@liftarn, @alexz: I want better quality than commercial map. But alexz made think that that probably means adding data about the coastlines, not mapping the to a 2 cm precision..
So perhaps I should map, the beach/coast area. So 1. how is the water leading up to the beach (rocks/sand etc) 2. how is the waterfront of the beach 3. what is there after you make landfall.
Very good advice. Now I won't have to improve my RC boat equipped with GPS anymore..
Kommentar frå srbrook, 30 august 2011 kl. 15:08
I recently traced a section of coastline from Bing imagery so I didn't map my holiday hotel in the sea. This may be the best way to do coastline now that hi-res imagery is available. However, the coastline was not updated in time to be downloaded to my GPS before I left, so update it in good time before you want to use it, as coastline updates seem to take a while.
Kommentar frå emj, 31 august 2011 kl. 06:20
Indeed imagery is a good way to trace coastlines. Look at the place linked in the story and you will see where the imagery ends, high res images covers less than 1% of the Swedish coast.