Tuesday, August 7, 2012

NZ Linz update in the Marine GeoGarage

5 charts have been updated in the Marine GeoGarage
(Linz July published 1st August 2012 updates)

    • NZ614 Tasman Bay
    • NZ864 Apolima Strait
    • NZ885 Tokelau
    • NZ4314 Manukau Harbour
    • NZ5571 Poverty Bay and Approaches to Gisborne: Gisborne Harbour and Entrance

      Today NZ Linz charts (178 charts / 340 including sub-charts) are displayed in the Marine GeoGarage.

      Note :  LINZ produces official nautical charts to aid safe navigation in New    Zealand waters and certain areas of Antarctica and the South-West    Pacific.

      Using charts safely involves keeping them up-to-date using Notices to Mariners

      Canada CHS update in the Marine GeoGarage


      27 charts have been updated (July 30, 2012) :

        • 1310    PORT DE MONTREAL
        • 1311    SOREL-TRACY TO VARENNES
        • 3527    BAYNES SOUND
        • 3670    BROKEN GROUP
        • 3671    BERKLEY SOUND
        • 3912    PLANS VICINITY OF BANKS ISLAND
        • 4001    GULF OF MAINE TO STRAIT OF BELLE ISLE
        • 4003    CAPE BRETON TO CAPE COD
        • 4011    APPROACHES TO BAY OF FUNDY
        • 4012    YARMOUTH TO HALIFAX
        • 4023    NORTHUMBERLAND STRAIT
        • 4233    CAPE CANSO TO COUNTRY ISLAND
        • 4281    CANSO HARBOUR AND APPROACHES
        • 4307    CANSO HARBOUR TO STRAIT OF CANSO
        • 4328    LUNENBURG BAY
        • 4340    GRAND MANAN
        • 4485    CAP DES ROSIERS TO CHANDLER
        • 4486    BAIE DES CHALEURS
        • 4498    PUGWASH HARBOUR AND APPROACHES
        • 4847    CONCEPTION BAY
        • 4848    LONG POND
        • 4862    CARMANVILLE TO BACALHAO ISLAND AND FOGO
        • 4905    CAPE TORMENTINE TO WEST POINT
        • 4913    CARAQUET HARBOUR BAIE DE SHIPPEGAN AND MISCOU HARBOUR
        • 4920    CHALEUR BAY SOUTH SHORE
        • 5001    LABRADOR SEA
        • 8048    CAPE HARRISON TO ST MICHAEL BAY

        So 688 charts (1659 including sub-charts) are available in the Canada CHS layer. (see coverage)

        Note : don't forget to visit 'Notices to Mariners' published monthly and available from the Canadian Coast Guard both online or through a free hardcopy subscription service.
        This essential publication provides the latest information on changes to the aids to navigation system, as well as updates from CHS regarding CHS charts and publications.
        See also written Notices to Shipping and Navarea warnings : NOTSHIP

        'Super Falcon' submarine aims to fly underwater

        Graham Hawkes' Super Falcon Submarine goes for a dive in the waters off Lake Tahoe and Jordan

        From InnovationNewsDaily

        A new submarine could pull off underwater maneuvers similar to aircraft flying stunts during a Lake Tahoe expedition in October.
        The makers of the DeepFlight Super Falcon hope to raise $45,000 through the crowd-funding website Kickstarter to test the boundaries of submarine technology.

        The two-seater submersible resembles a sleek missile or aircraft with wings, tail surfaces and ailerons —the brainchild of Graham Hawkes and Hawkes Ocean Technologies based near San Francisco. Such a sleek design allowed the Hawkes team to dream big and set the goal of pulling off a full underwater loop similar to what World War I fighter pilots pulled off during aerial dogfights.

        But the expedition to Lake Tahoe — bordering California and Nevada — has more than just underwater stunts in mind.
        The Hawkes team hopes the Kickstarter project can become the first public, crowd-funded underwater research expedition.
        That would also represent a first step toward "open-source" underwater exploration, in which the public decides everything from funding to selecting locations.


        Donate $5K to the Kickstarter project and get a ride on the wild side.

        Anyone wishing to ride as co-pilot aboard the Super Falcon during the Lake Tahoe dives can reserve one of the limited spots by donating either $5,000 (three available spots) or $10,000 (two available spots) on Kickstarter.
        But even lesser donations such as $100 come with rewards such as an invitation to see the submersibles launch.

        Getting a ride on the wild side of submersibles doesn't come without some limits.
        People who earn the right to dive with the submarine must weigh less than 220 pounds and have a height shorter than 6 feet 4 inches — and they must sign the inevitable waiver.

        Hawkes previously built the DeepFlight Challenger submarine for adventurer Steven Fossett, which is now owned by billionaire Richard Branson's Virgin Oceanic.
        Branson's company plans to use that single-person submarine in its attempts to reach the deepest points of the world's five oceans.

        Links :

        Monday, August 6, 2012

        Ben Ainslie wins fourth Olympics sailing gold medal


        From BBC 

        Ben Ainslie clinched his fourth straight gold medal to become the most decorated Olympic sailor in history.
        The 35-year-old, who also won silver in 1996, overtakes Dane Paul Elvstrom, who won four golds up to 1960.



        Britain's Ainslie came ninth in a tense Finn medal race to edge long-time regatta leader Jonas Hogh-Christensen of Denmark into silver.
        France's Jonathan Lobert won the medal race to grab bronze from the Netherlands' Pieter-Jan Postma.
        Ainslie was handed a union jack and a flare after crossing the line and sailed past the huge, cheering crowds on the Weymouth shore.
        "It's times like this you are supposed to come out with something clever but I can't think of anything," said Ainslie, who won silver and gold in the Laser class before switching to the heavyweight Finn dinghy to win further Olympic titles in Athens and Beijing.
        "I am speechless. I am just so glad for everyone who has supported me over the last four years. It has been an amazing Olympics.
        "After six races I was in a bit of trouble. Thankfully I turned things around and got it right when it counted.


        Ainslie chases his gold medal rival, Denmark's Jonas Hogh-Christensen,
        in the Finn class in Weymouth

        "It's been incredibly hard - there's a huge amount of pressure to perform at a home Games.
        It's been the hardest couple of weeks of my life but you just have to get on with the job.
        "This was one of the hardest courses I have raced on and I don't want to do anything like that again."
        Ainslie had trailed Hogh-Christensen all week and had not beaten the Dane until the seventh race of the regatta.
        He narrowed the gap to just two points on the final day of fleet racing and went into the medal race needing to finish ahead of Hogh-Christensen, and in the top six if Postma won.
        Most observers expected an aggressive match-race between Ainslie and Hogh-Christensen and the Briton tracking his rival around the committee boat in the pre-start manoeuvring.
        Ainslie got a slow start before sailing off to the right side of the course, which he had identified as being where there was most wind.
        He went around the first mark in fifth, with Postma behind him and the Dane in ninth.
        Ainslie climbed to second at the first downwind mark but then slipped back to join Hogh-Christensen at the back of the fleet.

        But the Briton was perilously close to losing gold with Postma in third and attacking New Zealand for second. Postma, though, hit Kiwi Dan Slater's boat on the final upwind leg and had to take a penalty turn which dropped him to fifth at the finish.
        Ainslie and Hogh-Christensen came home ninth and 10th and the Briton's coronation was confirmed.
        "You can never say never but I don't think I can sail one of these again, it's killing my body," said Ainslie. "
        I don't think you will see me in Rio [for the 2016 Olympics].
        But it's the best way to bow out at a home Olympics.
        "I learned to sail for fun so it's been a long road but I have had a lot of support over the years and I am just so glad to have done it."

        Links :
        • BBC : Why Ben Ainslie defines essence of Olympic greatness 
        • BBC : Ben Ainslie ready to show ruthless streak at London 2012

        Sunday, August 5, 2012

        Fascinating animation shows the ever-changing temperature of our oceans

        Sea surface temperature (SST) simulation from GFDL's high resolution coupled atmosphere-ocean model.

        From NOAA

        A fascinating animation by two scientists shows how the surface temperature of the sea varies across the world throughout the year.

        Created by the Geophysical Fluid Dynamics Laboratory at the National Oceanic and Atmospheric Administration (GFDL), the graphic illustrates the ever-changing temperature of our oceans.


        As the animation focuses on various locations of the world ocean we see the major current systems eg. the Agulhas current, Brazil current, Gulf Stream, Pacific Equatorial current, Kuroshio current. The small scale eddy structure is resolved and evident.

        It’s as if Earth had an invisible heart beat showing through the surface temperature of our oceans. Beautiful.