Monday, July 15, 2013

Norway mulls broadband Internet coverage in Arctic as maritime activity grows

In this July 21, 2011 file photo, an iceberg floats in the sea near Qeqertarsuaq, Disko Island, Greenland.
Norway is looking into providing high-speed Internet in one of the few places on Earth where it’s not available: the Arctic.
Demand for high-speed Internet in the Arctic is expected to grow as shipping, fishing and oil companies move north amid warming temperatures and melting ice.
Brennan Linsley, File/Associated Press

From WashingtonPost

Norway may provide high-speed Internet in one of the few places on Earth where it’s not available: the Arctic.
The Norwegian Space Center has teamed up with Telenor Satellite Broadcasting to assess the feasibility of a new satellite system covering northern areas outside the reach of current geostationary communications satellites.
Space center director Bo Andersen on Thursday told The Associated Press the system could be in place in the early 2020s if it gets the necessary funding from private and public sources.
The estimated cost is 2 billion-4 billion kroner ($330 million-$650 million).

Demand for high-speed Internet in the Arctic is expected to grow as shipping, fishing and oil companies move north amid warming temperatures and melting ice.
Last year, summer sea ice cover in the Arctic fell to the lowest extent on record.
 Arctic sea ice dwindled to its lowest levels on record in 2012

Geostationary satellites, which are in orbit over the equator, provide coverage up to 75 degrees north, Andersen said.
But above that latitude, the signals become too weak, and the only option is another satellite network that can only handle voice and limited data service.
“We see very clearly that there is an increasing need for broadband in the high Arctic,” Andersen said.

Ola Anders Skauby, a spokesman for Norwegian energy company Statoil, said “new satellite solutions would be beneficial” as the offshore industry moves north in search of oil and gas.
“Our plans for the Arctic depend on a number of issues: safe operations, logistics, weather conditions and more,” he said.
“Broadband coverage is part of this picture and for operations in some regions further north than where current operations are taking place development of new solutions for high-capacity broadband ... will be needed.”

Canada’s space agency has been studying a similar system.
Spokeswoman Melanie Beauchesne said the agency has completed feasibility studies but is still talking with potential public and private partners in Canada and abroad “to determine their level of interest and potential collaboration scenario to bring about the future realization of this mission.”

Saturday, July 13, 2013

Seas of fog around San Francisco



From KomoNews

With its perch right on the chilly Pacific Ocean, San Francisco has quite the foggy reputation and several foggy days have been immortalized in postcards and print.
But I'll bet you've never seen the fog quite like this.
Photographer Simon Christen just released his video "Adrift," culminating a two year project that he says "is a love letter to the fog of the San Francisco Bay Area."
His project aimed to "capture the magical interaction between the soft mist, the ridges of the California coast and the iconic Golden Gate Bridge.
 In the meantime, he got quite a lesson on Bay Area meteorology.
"The weather conditions have to be just right for the fog to glide over the hills and under the bridge," Christen wrote on his Vimeo page "I developed a system for trying to guess when to make the drive out to shoot, which involved checking the weather forecast, satellite images and webcams multiple times a day."
If the weather looked promising, he'd make the 45-minute drive to the Marin Headlands.
While many trips ended up fruitless because the fog bank was too high, too low, or already gone, "once in a while the conditions would be perfect and I was able to capture something really special."
Mission accomplished.


Why is San Francisco so foggy?

The loud drone of fog horns is a near daily occurrence around San Francisco, thanks to their proximity to the chilly waters of the Pacific Ocean, which varies between 52 degrees in the late winter to around 60 in the late summer.
That's due to a process called "upwelling", which occurs when winds along the surface blow ocean water away from the coastline.
That process pulls up deeper water to the surface to replace the "missing" water that's being blown away.
That deep water is much colder since it doesn't get the surface warming from the sunshine, and thus the surface temperature of the ocean where upwelling is occurring is much cooler.
In our case, It's helped by the easterly trade winds out in the central Pacific Ocean that help pull the water away from the West Coast -- sort of like when you roll over and pull the blanket off your spouse.
Here is a recent chart of sea surface temperatures off the California coast -- notice how chilly it is along the coast.


When you get warmer air moving in off the Pacific and it hits those cooler waters along the shorelines, the air near the surface will cool and condense into a thick fog.
Then as the ground in the inland Bay Area heats up each day, the hot air rises, creating lower pressure near the surface.
The fog just offshore is then drawn inland to replace that rising air -- a "marine push".
A similar effect occurs here in the Seattle area, only the fog has a lot farther to travel, so it takes a moderate to strong push to bring the marine clouds into Seattle, while even a very light push will bring fog in through the San Francisco Bay, allowing for those dramatic shots Christen found.

P.S. if you like that top video, you might like Christen's earlier project on Bay Area fog:

Friday, July 12, 2013

SSL maps for the GeoGarage B2B API


Marine GeoGarage now supports SSL for its B2B API web service - at no extra charge.

SLL is a necessity for every secure website, and it's vital to have all remote resources sent via the HTTPS protocol in order to protect users' privacy and to avoid mixed-content warnings.

Our Content Delivery Network (CDN) domain is now using a certified SSL.

We've made it incredibly easy to start using SSL.

So our customers can access the full REST API securely for fetching raster tiles.

Our API will automatically detect when the user of our GeoGarage nautical chart layers which are embedded in a third-party webmapping (for example for Vessel Tracking applications) is using a secure webpage and will use purely SSL resources when necessary.

These requests have no additional cost; HTTP and HTTPS traffic is billed at the same rate.

Canada CHS update in the Marine GeoGarage



56 charts have been updated (July 3, 2013) :
    • 1233 CAP AUX OIES TO SAULT-AU-COCHON
    • 1310 PORT DE MONTREAL
    • 1316 PORT DE QUEBEC
    • 1317 SAULT-AU-COCHON TO QUEBEC
    • 1509A RIVIERE DES PRAIRIES/ ILE BIZARD TO PONT-VIAU
    • 1509B RIVIERE DES PRAIRIES PONT-VIAU TO ILE BOURDON
    • 2006 UPPER GAP TO TELEGRAPH NARROWS
    • 2017 KINGSTON HARBOUR AND APPROACHES
    • 2018 LOWER GAP TO ADOLPHUS REACH
    • 2024A BUCKHORN TO GANNON NARROWS AND HARRINGTON NARROWS
    • 2024B GANNON NARROWS TO BOBCAYGEON
    • 2024C CHEMONG LAKE
    • 2024D PIGEON LAKE (SOUTH PORTION)
    • 2024E PIGEON LAKE (NORTH PORTION)
    • 2029A COUCHICHING LOCK TO BIG CHUTE ECLUSE COUCHICHING BIG CHUTE
    • 2029B BIG CHUTE TO PORT SEVERN
    • 2064 KINGSTON TO FALSE DUCKS ISLANDS
    • 2069 PICTON TO PRESQU'ILE BAY
    • 2085 TORONTO HARBOUR
    • 2202A PORT SEVERN TO TOMAHAWK ISLAND
    • 2202B TOMAHAWK ISLAND TO TWELVE MILE BAY
    • 2202C TWELVE MILE BAY TO ROSE ISLAND
    • 2202D SOUTH CHANNEL AMANDA ISLAND TO PARRY SOUND
    • 2202E MOON ISLAND AND SURROUNDING AREAS
    • 2203A CARLING ROCK TO TWIN SISTERS ISLAND
    • 2203B TWIN SISTERS ISLAND TO RASPBERRY ISLAND ISLAND AND TONCHES ISLAND
    • 2203C ISLE OF PINES TO BYNG INLET
    • 2204A BYNG INLET TO KILLARNEY
    • 2204B BYNG INLET TO KILLARNEY
    • 2204C BYNG INLET TO KILLARNEY
    • 2204D BEAVERSTONE BAY TO KILLARNEY
    • 2243 BATEAU ISLAND TO BYNG INLET
    • 2244 ALEXANDER PASSAGE TO BEAVERSTONE BAY
    • 2293 BYNG INLET AND APPROACHES
    • 2308 MITCHIPICOTEN ISLAND TO OISEAU BAY
    • 2311 THUNDER CAPE TO PIGEON RIVER
    • 3443 THETIS ISLAND TO NANAIMO
    • 3456 HALIBUT BANK TO BALLENAS CHANNEL
    • 3458 APPROACHES TO NANAIMO HARBOUR
    • 3459 APPROACHES TO NANOOSE HARBOUR
    • 3461 JUAN DE FUCA STRAIT EASTERN PORTION
    • 3462 JUAN DE FUCA STRAIT TO STRAIT OF GEORGIA
    • 3463 STRAIT OF GEORGIA SOUTHERN PORTION
    • 3475 PLANS - STUART CHANNEL
    • 3490 FRASER RIVER - SAND HEADS TO DOUGLAS ISLANDS BC
    • 3512 STRAIT OF GEORGIA CENTRAL PORTION
    • 3513 STRAIT OF GEORGIA NORTHERN PORTION/PARTIE NORD
    • 3548 QUEEN CHARLOTTE STRAIT (CENTRAL PORTION)
    • 3668 ALBERNI INLET
    • 3724 CAAMANO SOUND AND APPROACHES
    • 3742 OTTER PASSAGE TO McKAY REACH
    • 3908 KITIMAT HARBOUR
    • 3912 PLANS VICINITY OF BANKS ISLAND
    • 3920 NASS BAY ALICE ARM AND APPROACHES - NASS BAY
    • 4015 SYDNEY TO SAINT-PIERRE
    • 4022 CABOT STRAIT AND APPROACHES
    • 4237 APPROACHES TO HALIFAX HARBOUR
    • 4308 ST. PETERS BAY TO STRAIT OF CANSO
    • 4320 EGG ISLAND TO WEST IRONBOUND ISLAND
    • 4367 FLINT ISLAND TO CAPE SMOKEY
    • 4375 GUYON ISLAND TO FLINT ISLAND
    • 4377 MAIN-DIEU PASSAGE
    • 4385 CHEBUCTO HEAD TO BETTY ISLAND
    • 4449 CHETICAMP HARBOUR
    • 4909 BUCTOUCHE HARBOUR
    • 4911 ENTREE ENTRANCE TO MIRAMICHI RIVER
    • 6022A LAKE ROSSEAU AND LAKE JOSEPH
    • 6022B LAKE ROSSEAU AND LAKE JOSEPH
    • 6206 SEVEN SISTERS FALLS TO SLAVE FALLS
    • 7776 DOLPHIN AND UNION STRAIT
    • 7777 CORONATION GULF WESTERN PORTION
    • 7778 CORONATION GULF EASTERN PORTION
    So 705 charts (1660 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