Monday, June 10, 2013

US NOAA update in the Marine GeoGarage


14 charts have been updated in the Marine GeoGarage
(NOAA update mi-May 2013-1st week of June 2013)

NOAA Charts Show New IMO Traffic Separation Scheme off California
NOAA has updated a series of raster and electronic navigational charts to comply with routing regulations approved late last year by the International Maritime Organization (IMO COLREG.2/Circ.64,December 4, 2012).
The routing establishes a new traffic separation scheme off the northern coast of California, effective June 1

see GeoGarage blog : California shipping lanes moved in attempt to avoid killing whales

  • 11324 Galveston Bay Entrance Galveston and Texas City Harbors
  • 11356 Isles Dernieres to Point au Fer
  • 11428 Okeechobee Waterway St. Lucie Inlet to Fort Myers; Lake Okeechobee
  • 11542 Florida Keys Sombrero Key to Sand Key
  • 12326 Approaches to New York Fire lsland Light to Sea Girt
  • 12332 Raritan River Raritan Bay to New Brunswick
  • 12368 North Shore of Long Island Sound Sherwood Point to Stamford Harbor
  • 13223 Narragansett Bay. Including Newport Harbor
  • 13287 Saco Bay and Vicinity
  • 13298 Kennebec River Bath to Courthouse Point
  • 18649 Entrance to San Francisco Bay
  • 18724 Port Hueneme And Approaches;Port Hueneme
  • 18725 Port Hueneme to Santa Barbara;Santa Barbara;Channel Islands Harbor and Port Hueneme;Ventura
  • 18746 San Pedro Channel;Dana Point Harbor
Today 1024 NOAA raster charts (2166 including sub-charts) are included in the Marine GeoGarage viewer.


How do you know if you need a new nautical chart?
See the changes in new chart editions.
NOAA chart dates of recent Print on Demand editions

Note : NOAA updates their nautical charts with corrections published in:
  • U.S. Coast Guard Local Notices to Mariners (LNMs),
  • National Geospatial-Intelligence Agency Notices to Mariners (NMs), and
  • Canadian Coast Guard Notices to Mariners (CNMs)
While information provided by this Web site is intended to provide updated nautical charts, it must not be used as a substitute for the United States Coast Guard, National Geospatial-Intelligence Agency, or Canadian Coast Guard Notice to Mariner publications

Please visit the
NOAA's chart update service for more info.
 
 
1849 Imray nautical map of California Coast
"This wa probably the best chart of the West Coast avaolable in 1849"
 

Herbert Nitsch : back from the abyss


On June 6, 2012, the apnea diver Herbert Nitsch sought to improve his own world record in freediving by another 100 feet - to 800 feet (244 meters).
The record attempt off the Greek island of Santorini was to only be the beginning of his "1,000 feet" project.
Despite painstaking preparation, on this early summer afternoon Nitsch experienced the worst-case scenario.
Unconscious, he had to be brought to the surface by rescue divers - after reaching a depth of more than 818 feet (249.5 meters).

From DeeperBlue

For almost a year afterwards, there was no information whatsoever either about the accident or about Herbert Nitsch’s condition.

However, this documentary accompanied him during his incredible recovery, removed from the public eye, and offers world exclusive documentary material on the months of preparation leading up to and including the life-threatening accident in Santorini, the difficult rehabilitation in specialized clinics and finally, Nitsch's way back into the stillness of the underwater world of the sea.



Herbert Nitsch talks about his fateful dive and recovery :

“On June 6, 2012, I almost lost my life while pursuing a new world record.
First and foremost I would like to thank all those who believed in me and supported me since the record.
It played a big role in my well being and I can’t thank you enough for the concern, the care you gave to me. As freedivers know better than anyone, when you’ve been quite far down, getting back up is the only way to go – and all of you helped.
On that windy Wednesday in Santorino, Greece, the aim was to reach 800 feet (243.84 meters) with the no-limit freediving discipline, of which I already held the 700 feet world record. Several years of preparation, sled-design, safety measures and thorough training led up to this rather high profile event.
I did reach the record depth of 818.6 feet (249.5 meters), however, on the way back to the surface I lost consciousness due to narcosis (a first in free diving).
The sled and safety devices were designed in such a way, that it would stop at 10 meters depth, which it did, within reach of the safety divers.
Thanks to the well organized emergency rescue plan as part of my extensive pre-dive safety preparations, all went as scheduled after I reached the surface.
The original plan was that I would slow down the sled between 100 and 70 meters below the surface on the way back up, and have a one minute decompression stop at approximately 10 meters depth.
Because of the blackout due to narcosis (at approximately 100 meters below the surface), I was not able to slow down the sled, and thus it continued on to 10 meters where it stopped as programmed. Fortunately the safety divers brought me right away to the surface.
Because this omitted the planned 1 minute decompression stop, the result was serious DCS (decompression sickness), which is equivalent in my case to several brain strokes with severe initial consequences.
Prior to reaching the surface, I did regain consciousness and had the clarity of mind to ask for oxygen, to descend back to about 10 meters for about 20 minutes thus avoiding some impact of DCS. Underwater I realized that things were wrong in my head.
And once back to the surface I had to be brought with urgency by speedboat to the port of Fira, onward by ambulance plane to the hospital and decompression chamber in Athens.
After a good week’s stay in Athens, I was flown by ambulance plane to Murnau in Southern Germany to undergo recompression therapy for about a month.
This was followed by additional months of rehabilitation in Vienna to learn to walk, talk and move around again.
It was not an easy road.
During the course of rehabilitation I went into depression, wondering if I would ever get back to normal life again, to the point of contemplating jumping out of the window to end the mental chaos and physical limitations I endured.
Fortunately I realized that the second floor of the rehab center would not do the trick, so I gave up rather quickly on that idea.
Despite the slow progress and initial depression, I kept my motivation alive and made the decision to do anything to bring my life back to what it used to be.
I started a strict regime of super foods, healthy living, exercise and listening to my own intuition (even if this often meant disregarding well-meaning advice from doctors and experts).
I adopted the same attitude that I always used with freediving: pushing boundaries, further exploring the human potential and setting new limits where we thought we already knew everything.
I am doing well now.
There are still some physical challenges to deal with related to coordination and speech, which are typical consequences of neurological damage.
But from what I hear, those who have no idea of my condition do not really notice these limitations, which is a rather positive sign.
In January and February of 2013, I went with my father for a month trip in the South Pacific, where I lectured onboard a luxurious cruise liner, and started free diving again. It felt great to be back in the water.
In May I went back to Palau for freediving, and it made me realize once more that there is so much yet to explore in the deep blue.
It was a deliberate choice to keep quiet from the media for all this time since June 6 of last year until now.
After the record dive last year, the attention we received was overwhelming.
Because I was not in a position to make my own statements during most of that time and was not sure about my recovery and progress, I decided that healing had priority over media for the time being.
Also because media often misinterprets events or interviews, I decided to wait so I could tell my own story in my own words when the time is right.
Looking back, I am utterly convinced that my dive plan was realistic and feasible.
But what was not, was the way we conducted the dive under the forced conditions of that particular day.
I should have postponed the dive, prepare better and let the weather settle, before deciding to go for it.
Things could then have been different.
But life does not work backwards and even though I was obviously the one to pay the highest price for it, all those around me, family, friends, team, followers and supporters were also affected to some extent.
The support I received from everyone greatly contributed to my motivation and made my recovery easier.

A very thorough documentary by Red Bull will be aired June 6, 2013 (exactly one year after the record) around the whole event, including various phases of the recovery process and never seen before pictures.
The film team was also with me in the South Pacific for a while this January on the cruise, which is also featured in the documentary.
Lectures and writing will be the main focus for me in the coming months, along with more travels and new ideas linked to the underwater world.
I plan to work more towards the protection of the oceans, but also have in mind to design a new kind of submersible and new ways to explore the oceans.
Competitive freediving is not likely to be part of the future, but for the rest, I am still the same I used to be; the will to create new ways to achieve new things never left me.
I truly look forward to sharing more good news with you in the future.“

Links :

Sunday, June 9, 2013

Round the Island race 2013 timelapse

is a row of three distinctive stacks of chalk
that rise out of the sea off the western extremity of the Isle of Wight, UK

>>> geolocalization with the Marine GeoGarage <<<

Congratulations go to Sir Ben Ainslie and his all-British crew aboard his AC 45 catamaran J.P. Morgan BAR, from Solent Refit, the preparation base for the catamaran challenge.
Their craft trounced the existing Round the Island Race multihull record, which had stood for 12 years, by an impressive 16 minutes, finishing in 2 hours and 52 minutes across the course.
The previous multihull Race record was held by offshore legend Francis Joyon, who completed the 50 nautical mile 2001 course in just 188 minutes.

Saturday, June 8, 2013

World oceans day : time to celebrate, conserve the blue part of the planet


 From HuffingtonPost

June 8 marks the 21st annual World Oceans Day, a time to commemorate the blue part of the planet while galvanizing support for increasingly threatened aquatic ecosystems.

The day was first proposed by the Canadian government in 1992 and has since gained global recognition, including a designation by the United Nations in 2008.

Unfortunately, many of the issues plaguing oceans worldwide have only gotten worse since last year's event.
A recent report by the Marine Conservation Institute criticized the United States' lackluster protection of coastal ecosystems, overfishing continues to deplete wild fish populations and studies show ocean acidification is still threatening certain regions.

Yet conservation efforts are gaining some steady support.
Secretary of State John Kerry convened a group of "ocean experts" earlier this week to discuss conservation, saying the State Dept. was "committed to addressing threats including pollution, overfishing, and ocean acidification," in a press release. The event comes shortly after the White House released the final version of a landmark National Oceans Policy in April, mandated by a 2010 executive order from President Barack Obama.

Take a look here for a list of World Oceans Day events, and if you're in New York City, glance up at the Empire State Building, which will be lighted white, blue and purple for the evening.

Links :

Friday, June 7, 2013

Trash in the deep sea: bringing a hidden problem to light


After reviewing every video clip that showed debris, and compiling where and when the debris was found,
the researchers discovered plastics were the most common seafloor trash.

 From LiveSciences

The mention of ocean pollution usually triggers searing images of birds and turtles choked by bags, fasteners and other debris floating at the ocean surface.
But thousands of feet below, garbage also clutters the seafloor, with as yet unknown consequences for marine life, a new study finds.

 Distribution of marine debris observed in Monterey Bay (N=1,149). MBARI ROV surveys over the 22-year study period are shown in red.
The relative abundance of trash was normalized by the amount of time spent searching the seafloor; the largest circles depict areas of trash accumulation which tend to occur on the outside walls of canyon meanders where high-energy water flow and erosion occur.
The main study grid (upper inset) extended to the abyssal plain and included Davidson Seamount, about 130 km to the southwest.
>>> geolocalization with the Marine GeoGarage <<<

"It's completely changing the natural environment, in a way that we don't know what it's going to do," said Susan von Thun, a study co-author and senior research technician at the Monterey Bay Aquarium Research Institute (MBARI) in Monterey, Calif.

For the past 22 years, MBARI researchers have explored the deep ocean seafloor from California to Canada and offshore of Hawaii.
Video researchers tagged every piece of trash seen during the deep-sea dives, cataloguing more than 1,500 items in all.
Sparked by a recent study on trash offshore of Southern California, scientists at MBARI decided to analyze the database of ocean debris they had gathered.
The results were published May 28 in the journal Deep Sea Research Part I: Oceanographic Research Papers.

 The relationship between rugosity and debris distribution in Monterey Canyon.
MBARI ROV surveys over the 22-year study period are shown in blue.
The distribution of natural debris (drift kelp, wood) in Monterey Bay is indicated by the blue circles; the distribution of anthropogenic marine debris is indicated by the orange triangles.
The red box outlines a “clean” section of the canyon.

"Unfortunately for me, I wasn't so surprised," said von Thun, who works in the MBARI video lab.
"I've seen plenty of trash as I've been annotating video."

More than half of the plastic items were bags.
A deep-sea coral living nearly 7,000 feet (2,115 meters) off the Oregon Coast had a black plastic bag wrapped around its base, which will eventually kill the organism, von Thun said.

The second biggest source of ocean trash was metal — soda and food cans.
Other common types of debris included rope from fishing equipment, glass bottles, cardboard, wood and clothing.

Because most of the ocean pollution came from single-use plastic bottles and cans, von Thun and her co-authors hope the research will inspire more people to reduce, reuse and recycle.
"The main way to combat this problem is to prevent all this stuff from getting into the ocean to begin with," von Thun told OurAmazingPlanet.
"We really have to properly dispose of items, reduce our use of single-use items and recycle."

 A discarded tire sits on a ledge 2,850 feet (868 m) below the ocean surface in Monterey Canyon off the central California coast.
CREDIT: © 2009 MBARI.

Changing seascape

The arrival of shoes, tires and fishing gear in the deep sea is a big change for deep-sea marine life. Their environment is mostly soft mud, so hard surfaces are rare, and sea creatures colonize the trash, von Thun said.
For example, MBARI is following the effects wrought by a shipping container that fell overboard into Monterey Canyon in 2004.
But even a discarded tire can make a home for certain sea creatures at 2,850 feet (868 meters) below the ocean surface.

In Monterey Canyon, a deep, winding gorge offshore of Central California, trash collects in the canyon's outer bends or in topographic highs or lows, just like in rivers on land, von Thun said. Currents also trap trash behind obstacles, such as dead whale carcasses.
"We think the canyon dynamics and the currents are actually helping to distribute the plastic and metal to deeper areas," von Thun said.

With only 0.24 percent of Monterey Canyon explored in the past two decades by MBARI, there could be more trash hidden in the canyon's depths, the researchers said

Links :