Tidelines and Ocean Currents

Tidelines – it is spelled both ways but I prefer the one-word form.

A tideline, according to Wikipedia

refers to where two currents in the ocean converge (or meet). Driftwood, floating seaweed, foam, and other floating debris may accumulate, forming sinuous lines called tidelines.

Two-rivers-that-meets-but-do-not-mixThe topic of this article came about after I saw the photo above.The photo actually shows two oceans meeting, but is similar to what happens with the tides on the ocean further south, especially with reference to the Pacific Ocean on the Canadian British Columbia (BC) coast where the tides change (from high to low and back again) twice a day – sometimes rising and falling by as much as seven (7) meters (22 feet)! Continue reading

Reprint – Ocean Requiem

Please take a look at this short video called Ocean Requiem

Amazing short film shows why we must protect our oceans

It is hosted on the TreeHugger website and is well worth watching, especially in full screen mode. A quote from the website:

Ocean Requiem is a short film by Howard Hall, with original music by Alan Williams. It contains images that are as breathtaking as anything found in The Blue Planet or the water parts of Planet Earth.

Hall said that he created the film as a subtle indictment of over-fishing and gill nets (it ends on a very sad image), and it’s very effective at showing a great number of amazing species in a very short amount of time. . . .

Ocean Requiem

One of the reasons we have lighthouses – to protect and report on any illegal activities in the oceans.

Lightkeepers are the Eyes and Ears of the Oceans

Isn’t this a pretty neat photo? But what is it you ask?

If you run Google Chrome as a web browser1 you could use the Search by Image extension to find other copies of the photo and then the website, and then what is shown in the photo. Here I have just presented a photo with no information (caption).

This photo was shown in Facebook at one time I think. Through the browser extension mentioned above I found the origin of the photo and an explanation. Continue reading