One of the strangest lake ice videos I’ve ever seen. You just got to see it. Volume and f-bomb alert! Mille Lacs Lake, Minnesota May 11, 2013.
Posts tagged tides.
From Michael Marten’s series, Sea Change, which explores rising sea levels from regular tides and also climate change. His statement:
‘Sea Change’ is a study of the tides round the coast of Britain. The views in each diptych are taken from identical positions at low tide and high tide, usually 6 or 18 hours apart.
I am interested in showing how landscape changes over time through natural processes and cycles. The camera that observes low and high tide side by side enables us to observe simultaneously two moments in time, two states of nature.
Recent landscape photography often focuses on human shaping (and reshaping) of the environment - urbanisation, globalisation, pollution. Even when critical and committed, this approach can emphasise, even glamorise, humankind’s power over nature. I’m interested in rediscovering nature’s own powers: the elemental forces and processes that underlie and shape the planet.
The tides are one of these great natural cycles. I hope these photographs will stimulate people’s awareness of natural change, of landscape as dynamic process rather than static image. Attending to earth’s rhythms can help us to reconnect with the fundamentals of our planet, which we ignore at our peril.
‘Sea Change’ also comments on climate change. The tide floods in and quickly recedes again, but rising sea levels will flood our shores and not recede for thousands or millions of years. Many of the views in these pictures may have disappeared in 100 years’ time.
— Michael Marten
I just read about one of the strangest hunter/gatherer rituals on Deep Sea News. Kangiqsujuaq is a village in northeastern Canada. When the tides go out, ice is left on the beaches and ocean floor (it’s a very big tide). Locals have 30 minutes to literally chop into the ice, jump in the hole they made, and gather mussels on the sea floor.
Sounds bizarre, right? Watch the video.
The people of Kangiqsujuaq in Canada go to great lengths to add variety to their diet of seal meat, venturing under the sea ice during the extreme low tides of the spring equinox to gather mussels.
It’s a race against time. They have less than half an hour to search these temporary caverns before the tide rushes back in. A look-out keeps watch for the returning tide, but warning shouts can’t be too loud in case the echoes bring down the ice.
What is a storm surge, and why does it matter? NOAA has a handy guide:
STORM SURGE OVERVIEW
- Storm Surge vs. Storm Tide
- Factors Impacting Surge
- Notable Surge Events
- Surge Vulnerability Facts
Along the coast, storm surge is often the greatest threat to life and property from a hurricane. In the past, large death tolls have resulted from the rise of the ocean associated with many of the major hurricanes that have made landfall. Hurricane Katrina (2005) is a prime example of the damage and devastation that can be caused by surge. At least 1500 persons lost their lives during Katrina and many of those deaths occurred directly, or indirectly, as a result of storm surge.
Storm Surge vs. Storm Tide
Storm surge is an abnormal rise of water generated by a storm, over and above the predicted astronomical tides. Storm surge should not be confused with storm tide, which is defined as the water level rise due to the combination of storm surge and the astronomical tide. This rise in water level can cause extreme flooding in coastal areas particularly when storm surge coincides with normal high tide, resulting in storm tides reaching up to 20 feet or more in some cases.
Surge Vulnerability Facts
- From 1990-2008, population density increased by 32% in Gulf coastal counties, 17% in Atlantic coastal counties, and 16% in Hawaii
- Much of the United States’ densely populated Atlantic and Gulf Coast coastlines lie less than 10 feet above mean sea level
- Over half of the Nation’s economic productivity is located within coastal zones
- 72% of ports, 27% of major roads, and 9% of rail lines within the Gulf Coast region are at or below 4 ft elevation
- A storm surge of 23 ft has the ability to inundate 67% of interstates, 57% of arterials, almost half of rail miles, 29 airports, and virtually all ports in the Gulf Coast area
Andre Ermolaev’s photographs of Icelandic lava flows remind us of abstract paintings!
via My Modern Net
How does Venice work? A must see video showing how Venice was built, is maintained, and it’s infamous interactions with water. High quality production, and very educational. Electric, gas, and fiber optics are buried beneath the sidewalks. The place is always under restoration. It even describes in detail how the sewers work and where the gunk goes (if you’ve been to Venice, you probably know it’s nasty at low-tide, this shows why).
Still, the place is sinking, and I’ve raised the question if it should be abandoned or saved. It’s primarily a tourist attraction, having little cultural significance beyond architecture. It will cost billions to save Venice from sea level rise. It’s difficult for me to advocate saving a place where barely anyone lives.
The video was produced by a company called Insula. Insula was created by the City of Venice for the purpose of restoration and planning:
Insula is responsible for the process of implementing public works and infrastructure: it plans, designs, tenders and coordinates the execution of works and services for the urban and building maintenance vital to the preservation of the city.
- ordinary and extraordinary maintenance
- restoration, regeneration, renovation, new construction
- management of real-estate assets
- canal maintenance
- preservation of the building heritage along the canals
- restoration of the sewer system
- upgrade and reorganization of the underground utilities systems
- execution of the works and actions involved in the physical and environmental preservation of Venice and its lagoon as required by law 171/1973, art. 12 of Dpr 791/73.
- Source: Brochure
Insula’s website is beautiful and well designed. There are sections for photos, restoration, videos, and education. There are also brochures explaining what Insula does, including the processes and materials it uses for Venice, here.
Thanks to the wonderful CondeNastTraveler Tumblr!
What we’re watching right now—thanks, @kressie42, for the link.