Channel Islands National Park, CA
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Gastineau Channel is a channel between the mainland of the U.S. state of Alaska and Douglas Island in the Alexander Archipelago of southeastern Alaska. It separates Juneau on the mainland side from Douglas (now part of Juneau), on Douglas Island. The first European to sight the channel was Joseph Whidbey early in August 1794, first from the south and later from the west. It was probably named for John Gastineau, an English Civil Engineer and Surveyor.
The channel is navigable by large ships only from the southeast as far as the Douglas Bridge, approximately 9.7 miles (15.6 km). Between the bridge and Juneau International Airport, approximately 8.1 miles (13.0 km), it is navigable only by smaller craft and only at high tide.
The channel is becoming increasingly unnavigable due to shallow water depths. The two principal causes for this are:
Isostatic rebound following the retreat of glacial ice sheets
Sedimentation and infilling of the Gastineau Channel by silty sediment produced by the Mendenhall Glacier and Mendenhall River.
If current trends continue, Gastineau Channel may eventually become dry or unnavigable or both.
During isostatic rebound, the Earth’s lithosphere (crust) is slowly rising due to buoyant forces, following the removal of a large mass on the surface. This can be likened to an ice cube floating in a glass of water with a penny sitting on top. The weight of the penny makes the ice cube float lower, similar to the immense weight of a glacier on top of the lithosphere. When the penny (glacier) is removed, the ice cube (lithosphere) “rebounds” and floats slightly higher. In the geologic case, this scenario happens very slowly. Rates of isostatic rebound throughout SE Alaska vary from 0.1 to 1.5 inches/year depending on glacial history. The approximate rebound rate in the Juneau area is 0.25 to 0.5 inches/year.
Wikipedia
A long exposure, landscape image of waves crashing through the Whale's Moo near Portknockie in Morayshire, Scotland.
Guernsey is an island in the English Channel off the coast of Normandy. With several smaller nearby islands, it forms a jurisdiction within the Bailiwick of Guernsey, a Crown dependency. The jurisdiction is made up of ten parishes on the island of Guernsey, three other inhabited islands (Herm, Jethou and Lihou), and many small islets and rocks. The jurisdiction is not part of the United Kingdom, although defence and most foreign relations are handled by the British Government.
The entire jurisdiction lies within the Common Travel Area of the British Isles and is not a member of the European Union, but has a special relationship with it, being treated as part of the European Community with access to the single market for the purposes of free trade in goods. Taken together with the separate jurisdictions of Alderney and Sark it forms the Bailiwick of Guernsey. The two Bailiwicks of Guernsey and Jersey together form the geographical grouping known as the Channel Islands
Old picture taken in 2013 on the Isle of Wight.
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Listen the nice music track, as an offer of my Piannist friend Antonio Castagna.
© Copyrigh Miguel Churruca, All Rights Reserved.
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Gannet - Morus Bassanus
Bempton Cliffs
The gannets are large white birds with yellowish heads; black-tipped wings; and long bills. Northern gannets are the largest seabirds in the North Atlantic, having a wingspan of up to 2 metres (6.6 ft). The other two species occur in the temperate seas around southern Africa, southern Australia and New Zealand.
Gannets hunt fish by diving into the sea from a height and pursuing their prey underwater. Gannets have a number of adaptations which enable them to do this:
no external nostrils, they are located inside the mouth instead;
air sacs in the face and chest under the skin which act like bubble wrapping, cushioning the impact with the water;
positioning of the eyes far enough forward on the face for binocular vision, allowing them to judge distances accurately.
Gannets can dive from a height of 30 metres (98 ft), achieving speeds of 100 kilometres per hour (62 mph) as they strike the water, enabling them to catch fish much deeper than most airborne birds.
The gannet's supposed capacity for eating large quantities of fish has led to gannet becoming a description of somebody with a voracious appetite.
Gannets are colonial breeders on islands and coasts, normally laying one chalky, blue egg. Gannets lack brood patches and they use their webbed feet to warm the eggs. It takes five years for gannets to reach maturity. First-year birds are completely black, and subsequent sub-adult plumages show increasing amounts of white.
The most important nesting ground for northern gannets is the United Kingdom with about two thirds of the world's population. These live mainly in Scotland, including the Shetland Isles. The rest of the world's population is divided between Canada, Ireland, Faroe Islands and Iceland, with small numbers in France (they are often seen in the Bay of Biscay), the Channel Islands, Norway and a single colony in Germany on Heligoland. The biggest northern gannet colony is on Scotland's Bass Rock; in 2014, this colony contained some 75,000 pairs. Sulasgeir off the coast of the Isle of Lewis, St. Kilda, Grassholm in Pembrokeshire, Bempton Cliffs in the East Riding of Yorkshire, Sceilig Bheag, Ireland and Bonaventure Island, Quebec are also important northern gannet breeding sites.
Young gannets were historically used as a food source, a tradition still practised in Ness, Scotland, where they are called guga. Like examples of continued traditional whale harvesting, the modern day hunting of gannet chicks results in great controversies as to whether it should continue to be afforded exemption from the ordinary protection afforded to sea birds in UK and EU law". The Ness hunt is currently limited to 2,000 chicks per year, and dates back at least to the Iron Age. The hunt is considered to be sustainable, as between 1902 and 2003 Gannet numbers in Scotland increased dramatically from 30,000 to 180,000.
Population:
UK breeding:
220,000 nests
✧ ᵈᶤᵃᵐᵒᶰᵈˢ˒ ᵈᶤᵃᵐᵒᶰᵈˢ˒ ᵃʳᵉ ʸᵒᵘ ᵃˡˡ ᶤᶰ ᵗʰᵉ ˢᵏʸˀ ᶤ ᶜᵃᶰ'ᵗ ᵇᵉˡᶤᵉᵛᵉ ᵃˡˡ ᵒᶠ ᵗʰᵉˢᵉ ᵇᵉᵃᵘᵗᶤᶠᵘˡ ˡᶤᵍʰᵗˢˑ ✧
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The Gravan Canal is a channel that connects the eastern and western ports of Kristiansand. The canal is partly an artificially dug extension of the channel between Kvadraturen and Odderøya. The sound was so shallow that it prevented boat traffic. It was first excavated around the year 1680.
Four bridges cross the canal and there are remnants of another former swing bridge. The eastern inlet of the canal is at Hartmann's pier (Strandpromenaden) and Nodeviga marina, and the canal runs out into the western harbor at Lagmannsholmen and Kilden theater and concert halls. Parts of the north bank of the canal are a rock fill that made Lagmannsholmen land-solid. The building at Fiskebrygga with red and ocher yellow wooden houses is located on both sides of the canal. In the summer, there is heavy petty traffic in the canal. Larger boats are hindered by the relatively low height below the bridges. The harbor for fishing boats is west of the bridges.
Under the easternmost bridge is the artwork "Slow Bridge", designed by Anna Berthelsen. The work consists of square mirror tiles made of a total of 5,300 children from schools and kindergartens.
Northeast of the bridges stands a memorial box shaped like a sea mine, in memory of the war sailors 1940-1945. It is inscribed "Prejudice to the sailor's misery and death. Now to his memory of efforts in need. ”Gogel trans, wikipedia
One of the later sunset shots I took on this evening, one thing I had forgot to do was change my settings from shooting hand held during the day, to be honest I was rather late getting to this spot after being indecisive about where to shoot the sunset. However, I got some shots but had not noticed my ISO was still at 400 doh,I prefer to shoot at 100 or if I can get away with it 50 for the quality and latitude it gives me .
So this is one of a number of compositions I made before it got a bit too dark on our last night in Cornwall, more to come from Cornwall in due course .
There was a squawking in a tree over the road that went on for ages. A young channel-billed cuckoo was waiting for its foster parent to bring it some food, a cicada. It turned out to be a magpie.
So... After watching this little wagger for an hour at great distance, it took off and landed in the road behind me, the worst possible place for a proper ID shot, partly obscured by vegetation and pretty much into the sun. Anyway, I've scrubbed the idea of it being a Blue-headed wagtail (I did spend half an hour trying to convince myself it was a Sykes... In my dreams) and have now settled for it being a Channel. :@)
Winter grips Bedford Channel in Fort Langley as the Fraser Rivers mists glide along the perfectly calm water, mirroring the scene.
Anastomosed runoff channels flow near the Back Basin Trail south of Porkchop Geyser in Norris Geyser Basin, Yellowstone National Park, Wyoming. This runoff drains into Tantalus Creek which is the outlet for most of the hot springs outflow at Norris. The green and brown colors are due to organism like cyanobacteria that grow in the warm, acidic, hot springs runoff.