Similar to the air-traffic control site, but for floaty things: http://www.shipais.com/index.php -- Rob_P UKRM(at)indqualtec.co.uk uppercase(d) BBIWYMC#1 BOG#11? MRO#31 IBCDBBB#1(kotl) FJ1200, CCM130 Benelli Cabriolet (gone) Looks like Rab C Nesbit.
I like the fact that a ship at anchor can register 0.1Kt. Either there's a bit of inaccuracy in the position measurement, or it's reading tidal current from the ship's own log.
I don't know where they get their speed from. If it's GPS, it could be swinging round on the anchor with the change in the tidal stream.
Site also gives 1 month ahead tidal predictions. The Admiralty site, Easytide, only gives up to 7 days. Steve
Could be GPS for position as well. There a couple of large vessels parked on the quayside at Immingham according to the plot, and another Ro-Ro was currently making its way inshore towards a petroleum storage depot. Steve
Possibly GPS for position as well. Two ships are shown parked _on_ the quayside at Immingham, and a Ro-Ro vessel was shown making its way inshore towards a chemical \ petroleum storage facility. Steve
Yeah, I guess my Luddite side is showing. I know people who have tide apps on their smart phones. It's always amazed me that tides can be predicted accurately, years in advance, to the hundredths of a foot.
+1. Not the most accurate (istr within 15 minutes), but for general boat buggering about good enough. I suppose it depends on exactly where you are. I can imagine the Solent might be a bit tricky.
Ah Immingham, Standard Port[1], I did my Yachtmaster Offshore Tidal Power, in a fishing boat, out of Grimsby in the Humber Estuary and North Sea. [1] Standard and Secondary Ports strike fear into the hearts of folk learning about springs and neaps. Well they did me first time around.
Bad form etc., but in a similar vein: http://www.fishfight.net -- Rob_P UKRM(at)indqualtec.co.uk uppercase(d) BBIWYMC#1 BOG#11? MRO#31 IBCDBBB#1(kotl) FJ1200, CCM130 Benelli Cabriolet (gone) Looks like Rab C Nesbit.
What does one need? The calendar I carry in my wallet gives time adjustments for anywhere within 40 miles of me. A serious boater should already know how to find relevant tides. If not, they shouldn't be sailing. For us landlubbers, you just need to know approximately that there is a high high around midday so you can plan fishing, or tide-pooling, or surfing. There must be dozens of webpages that show tides for everywhere on the planet.
Tides are just sine waves: the extra wiggle caused by the double tide in the Solent is just some extra harmonics to put in the model. A bigger problem as I understand it is that the UK hydrographic people (being self funded) reckon they own all the tidal harmonic data, so it's difficult to build a free tool.
I can just hear them sitting around in the Home Office saying "Why can't we have this for road traffic?".
Depends on what you are doing. Job done, if that's what you need. Hence a copy of Reeds and a collection of Admiralty charts for the areas I frequent. Spot on. But as already mentioned by Tosspot they are not always that accurate.
