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Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Tue 06 Mar 2018, 15:39:53
by dohboi
“Thousands of dead starfish have washed up on a beach in the United Kingdom”

https://twitter.com/CNN/status/971067131709313024

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Wed 11 Apr 2018, 17:35:10
by dohboi
https://www.washingtonpost.com/news/ene ... cd466288ac

15% slowdown in the AMOC since mid-20th C.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sun 15 Apr 2018, 14:02:08
by dohboi
More on the AMOC slowdown:

“I think we’re close to a tipping point,” climatologist Michael Mann told ThinkProgress in an email. The AMOC slow down “is without precedent” in more than a millennium he said, adding, “It’s happening about a century ahead of schedule relative to what the models predict.”

….

A slow-down in deepwater ocean circulation “would accelerate sea level rise off the northeastern United States, while a full collapse could result in as much as approximately 1.6 feet of regional sea level rise,” as the authors of the U.S. National Climate Assessment (NCA) explained in November.


https://thinkprogress.org/climate-tippi ... 633f968fc/

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Mon 16 Apr 2018, 00:31:01
by Plantagenet
Just flew into Hong Kong and was surprised to see ca. 100 jack up oil rigs crowded into the harbor——it looked like an armada.

The fear has always been that China was claiming all the South China Sea right up to the 3 mile border of Vietnam, The Phillipines, Malaysia, etc. so they could drill for all the oil in the whole South China Sea.

With ca. 100 jack up rigs for shallow offshore drilling sitting in Hong Kong right now, China is now positioned to start a huge offshore oil drilling campaign any time it wants to.

Cheers!

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Tue 17 Apr 2018, 11:01:34
by dohboi
Interesting. Thanks for the eye-witness account.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Fri 20 Apr 2018, 20:19:09
by dohboi
Studying oxygen, scientists discover clues to recovery from mass extinction.

https://www.sciencedaily.com/releases/2 ... 132829.htm
. . . The resulting variations of uranium isotopes gave the team the answers they were looking for. They were able to show that episodes of extinction coincided with pulses of ocean anoxia, driven by changes in ocean circulation and nutrient levels.

“This finding,” says Zhang, “provides important insights into patterns of oceanic environmental change and their underlying causes, which were ultimately linked to intense climate warming during the Early Triassic.”

This team’s discovery also calls attention to the possible effects of modern climate change, because global warming was the ultimate driver of marine anoxia in the Early Triassic period.

“One of the most interesting and worrying things about the Permian-Triassic extinction is how similar those events are to what is happening today,” says co-author Stephen Romaniello. “Similar to what happened during the Permian period, the Earth’s modern oceans are facing rapid climate warming and enhanced nutrient fluxes.”

Point in fact, scientists have discovered more than 400 marine dead zones in the modern oceans. These are mostly linked to elevated nutrient fluxes in coastal areas, and global warming is likely to cause these zones to expand dramatically in the future.

“Our work shows that if we continue on our present course, there is a good chance that oxygen depletion will exacerbate the challenges marine organisms are already facing,” co-author Thomas Algeo added.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sun 13 May 2018, 19:25:42
by Newfie
Turkey to build a mega canal. Interesting read.

http://gcaptain.com/turkeys-proposed-ka ... entalists/

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Tue 15 May 2018, 06:49:27
by Newfie
Paris MOU to Enforce IMO’s Low Sulphur Fuel Rule from “Day One”
May 14, 2018 by gCaptain

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Photo: Shutterstock/CNRN
The Paris MOU on Port State Control is warning that it intends to enforce new international regulations limiting the amount of sulphur in fuel oil used on board ships from “day one”.

The warning comes in anticipation of the International Maritime Organization’s low sulphur fuel rule which is to take effect on January 1, 2020.

http://gcaptain.com/paris-mou-to-enforc ... m-day-one/

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Wed 16 May 2018, 09:05:34
by Tanada
This has been coming for a long time and 18 months is ample warning to consume all the high sulfur heavy diesel currently in the system and replace it with ultra low sulfur diesel. The method of taking the sulfur out is very well known and is now done in Europe and North America and is now a requirement for all road fuel and IIRC all railroad fuel as well. Simply adding the sulfur scrubbers to process the heavy diesel used for shipping is not a big change and all the whining and gnashing of teeth is just that. Sure sea travel diesel costs are going up about 10%. Boo hoo! The End Is Nigh!

Reality check, we have been building zero carbon emission high powered ships since the 1950's. The only reason they are not the main form of sea power is fossil fuel is still freaking cheap as an energy source.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Wed 16 May 2018, 13:54:38
by dohboi
Toxic Algae Blooms Occurring More Often, May Be Caught in Climate Change Feedback Loop

The blooms, primarily fed by farm runoff but exacerbated by warming, release methane and CO2. Lake Erie is a 'poster child' for the challenge.


Blooms of harmful algae in the nation's waters appear to be occurring much more frequently than in the past, increasing suspicions that the warming climate may be exacerbating the problem.

The Environmental Working Group (EWG) published newly collected data on Tuesday reporting nearly 300 large blooms since 2010. Last year alone, 169 were reported. While NOAA issues forecasts for harmful algal blooms in certain areas, the advocacy group called its report the first attempt to track the blooms on a nationwide scale.

The study comes as scientists have predicted proliferation of these blooms as the climate changes, and amid increasing attention by the news media and local politicians to the worst cases.

Just as troubling, these blooms could not only worsen with climate change, but also contribute significantly to greenhouse gas emissions...


https://insideclimatenews.org/news/1505 ... -lake-erie

(Sorry, this seems to apply primarily to inland water bodies, but the great lakes are basically inland seas, so I'm keeping this post in this thread, unless mods want to place it elsewhere or in a new thread :) )

Also in the news, in the real ocean:

Storms that moved across the area yesterday ended up creating a meteotsunami across the Mid-Atlantic & up into the SNE coastline. You can see the meteotsunami in the water fluctuations from area tidal gauges, esp in the New Haven gauge.


https://oceanservice.noaa.gov/facts/meteotsunami.html

https://twitter.com/nwsboston/status/996676909013618688

Has anyone heard of a meteotsunami before?

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Wed 16 May 2018, 18:31:34
by Newfie
I’ve been trying to catch some fish, but I can’t. The darn saragosum weed is ever where and it could your lures when trolling. I could not believe how much there was so I looked it up on Wiki. Seems there has been an unexplained bumper crop the last six years or so. Locals complain of it fouling the beaches and rotting and stinking. They even have saragosum alerts In some places.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Fri 18 May 2018, 05:31:34
by Newfie
59DDA11D-9C87-40F4-88C5-8C011F50009F.jpeg
59DDA11D-9C87-40F4-88C5-8C011F50009F.jpeg (140.23 KiB) Viewed 8726 times


We are living “on the hard” as sailors say, the boat is on stands in a yard. Of course that means a trip to the bathroom at 5am entails getting dressed, climbing down a ladder and walking a couple of hundred yards to the facilities. En route we find the MONSTER turtle, the carpace is nearly 5’ and overall is more than my arm span, over 6’. She crawled out on to the little beach (to lay eggs?) but got stuck in this boatyard. We got her back in the water by making an aisle out of old tires and guiding her. Very sad she was frustrated but felt wonderful to see her swim off.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Fri 18 May 2018, 10:24:15
by Tanada
Isn't Sargossa weed edible? And usable for livestock feed if nothing else?

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Fri 18 May 2018, 13:06:58
by pstarr
Plantagenet wrote:Just flew into Hong Kong and was surprised to see ca. 100 jack up oil rigs crowded into the harbor——it looked like an armada.

The fear has always been that China was claiming all the South China Sea right up to the 3 mile border of Vietnam, The Phillipines, Malaysia, etc. so they could drill for all the oil in the whole South China Sea.

With ca. 100 jack up rigs for shallow offshore drilling sitting in Hong Kong right now, China is now positioned to start a huge offshore oil drilling campaign any time it wants to.

Cheers!

They might merely be cargo cranes?
Image
But where is the fun in that?
Image

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Fri 18 May 2018, 15:05:57
by Newfie
Tanada wrote:Isn't Sargossa weed edible? And usable for livestock feed if nothing else?


Not a clue. On Montserrat I was told that after the volcano cattle went wild and they ended up with more cattle than people. Supposedly the UK government sent us shooters to cull the herd, leaving the carcasses to rot as there was no butcher shop to handle them. Seems to me they could have just let the population harvest the animals. But I don’t know, maybe the folks do t have a culture that allows that?

I did find this on Wiki
Sargassum crisis in the Caribbean Sea Edit

In summer 2015, large quantities of different species of Sargassum accumulated along the shores of many of the countries bathed by the Caribbean Sea. Some of the affected islands and regions include the Caribbean coast of Mexico, the Dominican Republic, Barbados and Tobago.[12]

The algae washes ashore, piles up on beaches, and decays, often causing a foul odor, releasing fumes of sulphur compounds that rust metals, that can turn taps black in shore houses, damages modern conveniences, and causes respiratory problems, particularly for asthmatics. 52 patients were recorded by a single doctor in Guadeloupe with Sargassum-related symptoms. Insurance problems arise for tourist operators and homeowners, where the household and business losses do not fall into previous insurance categories. Wildlife also suffers; for example, sea turtle hatchlings that die on their way to the open water. The affected countries and territories are discussing causes of the outbreak, potential solutions, and the negative effects on tourism. One method of cleaning is by spade and barrow onshore, and it can be collected by raking boats offshore. Barrages of shallow nets floated by long buoys can be used to ward off algae drifts, depending on wave height and current. On the Caribbean island of Saint Martin, backhoes are also used in the process of clean up once the sargassum weed reaches the shorelines.[13][14]

Researchers say that the Sargassum outbreak started in 2011, but it has become worse over the years. As the sargassum is cleaned up on the shorelines, in a matter of a week the shorelines are once again filled in masses. It is still a recurring problem to this date. There are several factors that could explain the proliferation of Sargassum in the area in recent years. These include the rise of sea temperature and the change of sea currents due to climate change. Also, nutriments from agricultural fertilizers and wastewater from the cities, that end up in the sea, could also make the algae bloom.[12]

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Thu 24 May 2018, 06:08:43
by Newfie
Russians build a floating nuclear power plant.

http://gcaptain.com/russias-first-float ... he-arctic/

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sat 26 May 2018, 08:15:39
by Tanada
Newfie wrote:Russians build a floating nuclear power plant.

http://gcaptain.com/russias-first-float ... he-arctic/


You may not be aware but back in the 1960's they built about a dozen to serve as power stations for cities on the coast of the Arctic Ocean. Back then they basically took a submarine reactor plant, installed it on a barge attached to an electric generating turbine instead of propulsion, and parked it in the far north. Now those old stations have exceeded their 'useful lifespan' so a replacement is needed. At least this time they are starting with a fresh sheet design instead of just adapting something they already have to do something it was never designed to do.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sat 26 May 2018, 08:51:34
by Newfie
Interesting, thanks.

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sat 26 May 2018, 08:59:59
by jef
"Now those old stations have exceeded their 'useful lifespan'..."

Do they de-commission them by sinking them in the same nuc-sub graveyard?

Re: THE Oceans & Seas Thread pt 3

Unread postPosted: Sat 26 May 2018, 09:15:04
by onlooker
From 1946 through 1993, thirteen countries (fourteen, if the USSR and Russia are considered separately) used ocean disposal or ocean dumping as a method to dispose of nuclear/radioactive waste. The waste materials included both liquids and solids housed in various containers, as well as reactor vessels, with and without spent or damaged nuclear fuel.[1] Since 1993, ocean disposal has been banned by international treaties. (London Convention (1972), Basel Convention, MARPOL 73/78)

However, according to the United Nations, some companies have been dumping radioactive waste and other hazardous materials into the coastal waters of Somalia, taking advantage of the fact that the country had no functioning government from the early 1990s onwards. 
One can also say the Oceans have been used as a dumping area for many types of organic and inorganic compounds. And in large quantities
https://en.m.wikipedia.org/wiki/Ocean_d ... tive_waste