Saturday, January 9, 2016

Pacific Ocean time lapse : Glittering blue, watch this hypnotic view of Earth from space over 24 hours

A video posted by mapbox (@mapbox) on


Always wanted to be an astronaut, but never quite made it to space?
A new site can at least make you feel like you went.
Glittering Blue is a beautiful, simple website that shows 24 hours of observations of Earth from the Japanese weather satellite Himawari-8 like you’ve never seen before.
It’s in stunning high-definition and gives a glimpse at what you might see if you were stationed 22,300 miles above the equator.

 The 12-second clip is a time-lapse of one section of the globe, constructed from a number of photos taken by the Japanese Himawari 8 satellite over a 24-hour period.
It shows the Earth as the sun rises over the western Pacific , travels past Australia (somewhere about here) and eventually sets on the other side.
The clip also shows a Category 5 typhoon captured in pictures that day -- August 3, 2015 -- called Typhoon Soudelor.
Sit back, relax, and watch from above : glittering.blue

Built by Charlie Loyd, who works on satellite imagery at Mapbox, the process used to create the beautiful animation is open source.
Loyd says that “Himawari-8 has the best sensor of its kind in space today” and that it’s how Earth “really looks” over 24 hours… except sped up.

Friday, January 8, 2016

Canada CHS update in the GeoGarage platform

20 nautical charts updated

A new human-machine interface for the bridge



From Maritime Executive

Drawing directly from the experience of seafarers, the E.U.-funded project CASCADe has developed new adaptive bridge displays and design methodologies that treat humans and electronic equipment as parts of a cooperative system.

To date, the development of ship bridge systems is characterized by being non-harmonious and far from guaranteed to be of optimal design for the actual users of them. Existing regulations for system and procedure design are disconnected and defined on a level which is not informative for bridge design. Research has shown clearly, that in many cases, accidents and incidents were caused by human error due to non-optimal design of the human-machine interaction leading to degraded situation awareness.

CASCADe addressed the design of bridges as an integrated whole with holistic perspective that allowed the detection and solving of potential conflicts including human error and inconsistencies and redundancies in the information presented on screens.

Beside cognitive ergonomics, CASCADe also pays deep attention to physical ergonomics and to the interplay between physical postures, physical moves and cognitive behavior and communications on the bridge.

The three-year project, which is coming to a close this month, then developed a set of adaptive bridge displays including a touch screen “Shared Display” intended to aid communication and co-operation on the bridge. This tool is fully customizable and allows one screen to show multiple sources of information in whatever configuration is most suitable for a particular situation.

 Pilot with PPU - Adaptative perspective display, shared for cooperation and bridge layout 
seen as an integrated whole
"It offers functionality to graphically annotate maps, leave notes for other crew members or complete checklists electronically."

The “Shared Display” provides functionality to graphically annotate maps, leave notes for other crew members or complete checklists electronically.

The CASCADe console was integrated with tools used by pilots in their Portable Pilot Units (PPUs). Firstly, CASCADe developed a protocol to share pilotage routes between the PPU and the ship’s electronic charts. Secondly, a link was established between the PPU and the bridge screens to allow mirroring of information from the PPU screen, enabling crew members to see extra information normally only available to the pilot.

All of these CASCADe tools were tested on both a physical simulator (a ship simulator used for training) and a virtual simulator (a software-based simulation of a ship bridge). The virtual simulation platform made it possible to test new bridge designs at the earliest stages of development, based purely on computational models.

The final evaluation of the CASCADe results took place in Kiel, Germany, late last year. The new ship bridge (including the handover and annotation tools) was presented to a group of nine local pilots, officers and cadets. The feedback was generally positive.

Under the coordination of OFFIS (Oldenburg Research and Development Institute for Information Technology Tools and Systems), CASCADe included a consortium of seven project partners from five E.U. countries including BMT Group, Raytheon Anschuetz, Mastermind Shipmanagement, the University of Cardiff, Marimatech and Symbio Concepts & Products.

Four further associated partners including the Maritime Cluster Northern Germany, Nautilus International, NSB Niederelbe Schiffahrtsgesellschaft mbH & Co. KG and the University of Tasmania also supported the project.

Thursday, January 7, 2016

Remains of lost 1800s whaling fleet discovered off Alaska's Arctic coast

Scanned images from original Harper’s Weekly, Robert Schwemmer Maritime Library.

From NOAA

NOAA archaeologists have discovered the battered hulls of two 1800s whaling ships nearly 144 years after they and 31 others sank off the Arctic coast of Alaska in one of the planet's most unexplored ocean regions.

 Abandonment of the whalers in the Arctic Ocean, September 1871, including the George, Gayhead, and Concordia. 
Scanned from the original Harper’s Weekly 1871, courtesy of Robert Schwemmer Maritime Library.

The shipwrecks, and parts of other ships, that were found are most likely the remains of 33 ships trapped by pack ice close to the Alaskan Arctic shore in September 1871.
The whaling captains had counted on a wind shift from the east to drive the ice out to sea as it had always done in years past.
The ships were destroyed in a matter of weeks, leaving more than 1,200 whalers stranded at the top of the world until they could be rescued by seven ships of the fleet standing by about 80 miles to the south in open water off Icy Cape.
No one died in the incident but it is cited as one of the major causes of the demise of commercial whaling in the United States.

 This map shows the area that was surveyed during the Search for the Lost Whaling Fleets expedition. Image courtesy of M. Lawrence/NOAA.

With less ice in the Arctic as a result of climate change, archaeologists now have more access to potential shipwreck sites than ever before.
In September, a team of archaeologists from the Maritime Heritage Program in NOAA's Office of National Marine Sanctuaries scoured a 30-mile stretch of coastline in the nearshore waters of the Chukchi Sea, near Wainwright, Alaska.
Previous searches for the ships had found traces of gear salvaged from the wrecks by the local Inupiat people, as well as scattered timbers stranded high on the isolated beaches that stretch from Wainwright to Point Franklin.

 The shipwreck remains located off Point Franklin represent 19th century wooden ship construction. The wood frames are likely from the lower portion of the vessel near the turn of the bilge.
The wooden pegs, seen here on a section of ship hull, are known as treenails and were used to fasten pieces of wood together, and in this case they were used to attach the exterior hull planking or interior ceiling planks.
Image courtesy of Robert Schwemmer/NOAA .

Using state-of-the-art sonar and sensing technology, the NOAA team was able to plot the "magnetic signature" of the two wrecks, including the outline of their flattened hulls.
The wreck site also revealed anchors, fasteners, ballast and brick-lined pots used to render whale blubber into oil.
"Earlier research by a number of scholars suggested that some of the ships that were crushed and sunk might still be on the seabed," said Brad Barr, NOAA archaeologist and project co-director.
"But until now, no one had found definitive proof of any of the lost fleet beneath the water. This exploration provides an opportunity to write the last chapter of this important story of American maritime heritage and also bear witness to some of the impacts of a warming climate on the region's environmental and cultural landscape, including diminishing sea ice and melting permafrost."

 Seahorse islands with the GeoGarage nautical chart platform

James Delgado, maritime heritage director for NOAA's Office of National Marine Sanctuaries, said he believes the wrecks were pressed against a submerged sand bar that rests about 100 yards from shore.
Working from first-hand accounts of the loss of the fleet, he said the ice opened the hulls to the sea and tore away the upper portions of the ships, scattering their timbers on the beach, while the lower hulls, weighted down with ballast, and in some cases still anchored, stayed in place against the sand bar.
"Usually, the Arctic does not destroy ships if there is a natural obstacle like a sand bar, large rocks or a sheltered cove to partially divert the force of tons of ice," Delgado said.

 Abandonment of the whalers in the Arctic Ocean, September 1871, including the Monticello, Kohoa, Eugenia, Julian, Awashonks Thom Dickason, Minerva, Wm. Rotch, Victoria, and Mary.
Wainwright Inlet is in the background.
Courtesy of Ted and Ellie Congdon, Huntington Library.

On Sept. 12, 1871, the captains of the 33 whaling ships caught in the ice convened aboard the Champion to consider their options for saving the 1,219 officers, crew, and in some cases, families, from their fate.
Although, their situation was dire, there was some small glimmer of hope for rescue by seven nearby ships.
However, to save such a large party, the rescuing whale ships had to jettison their precious cargoes of whale oil, bone and their expensive whaling gear to make room for the survivors.
The rescue ships were able to sail safely out of the Arctic and back to Honolulu, where hundreds of native Hawaiian whalers aboard the stranded vessels lived, while others sailed on to San Francisco, New Bedford and other cities.

Links :

Wednesday, January 6, 2016

A still-growing El Niño set to bear down on U.S.

see also : El Niño evolution January – December 2015

From NASA

The current strong El Niño brewing in the Pacific Ocean shows no signs of waning, as seen in the latest satellite image from the U.S./European Ocean Surface Topography Mission (OSTM)/Jason-2 mission. 

El Niño 2015 has already created weather chaos around the world.
Over the next few months, forecasters expect the United States to feel its impacts as well.
The latest Jason-2 image bears a striking resemblance to one from December 1997, by Jason-2's predecessor, the NASA/Centre National d'Etudes Spatiales (CNES) Topex/Poseidon mission, during the last large El Niño event.
Both reflect the classic pattern of a fully developed El Niño.

The images can be viewed at:
The images show nearly identical, unusually high sea surface heights along the equator in the central and eastern Pacific: the signature of a big and powerful El Niño.
Higher-than-normal sea surface heights are an indication that a thick layer of warm water is present.

People the world over are feeling, or soon will feel, the effects of the strongest El Niño event since 1997-98, currently unfolding in the eastern equatorial Pacific Ocean.
New satellite observations are beginning to show scientists its impact on the distribution of rain, tropospheric ozone and wildfires around the globe.

El Niños are triggered when the steady, westward-blowing trade winds in the Pacific weaken or even reverse direction, triggering a dramatic warming of the upper ocean in the central and eastern tropical Pacific.
Clouds and storms follow the warm water, pumping heat and moisture high into the overlying atmosphere.
These changes alter jet stream paths and affect storm tracks all over the world.

This year's El Niño has caused the warm water layer that is normally piled up around Australia and Indonesia to thin dramatically, while in the eastern tropical Pacific, the normally cool surface waters are blanketed with a thick layer of warm water.
This massive redistribution of heat causes ocean temperatures to rise from the central Pacific to the Americas.
It has sapped Southeast Asia's rain in the process, reducing rainfall over Indonesia and contributing to the growth of massive wildfires that have blanketed the region in choking smoke. 

El Niño is also implicated in Indian heat waves caused by delayed monsoon rains, as well as Pacific island sea level drops, widespread coral bleaching that is damaging coral reefs, droughts in South Africa, flooding in South America and a record-breaking hurricane season in the eastern tropical Pacific.
Around the world, production of rice, wheat, coffee and other crops has been hit hard by droughts and floods, leading to higher prices.

While El Niño may provide some drought relief locally, in other parts of the world, it wreaks havoc.

In the United States, many of El Niño's biggest impacts are expected in early 2016.
Forecasters at the National Oceanic and Atmospheric Administration favor an El Niño-induced shift in weather patterns to begin in the near future, ushering in several months of relatively cool and wet conditions across the southern United States, and relatively warm and dry conditions over the northern United States.
The latest El Niño forecast from NOAA's Climate Prediction Center is at:

While scientists still do not know precisely how the current El Niño will affect the United States, the last large El Niño in 1997-98 was a wild ride for most of the nation.
The "Great Ice Storm" of January 1998 crippled northern New England and southeastern Canada, but overall, the northern tier of the United States experienced long periods of mild weather and meager snowfall.
Meanwhile, across the southern United States, a steady convoy of storms slammed most of California, moved east into the Southwest, drenched Texas and -- pumped up by the warm waters of the Gulf of Mexico -- wreaked havoc along the Gulf Coast, particularly in Florida.  

"In 2014, the current El Niño teased us -- wavering off and on," said Josh Willis, project scientist for the Jason missions at JPL.
"But in early 2015, atmospheric conditions changed, and El Niño steadily expanded in the central and eastern Pacific. Although the sea surface height signal in 1997 was more intense and peaked in November of that year, in 2015, the area of high sea levels is larger. This could mean we have not yet seen the peak of this El Niño."

Scripps Institution of Oceanography, UC San Diego, scientists on the history of El Niño research and what's being done to get ready for the biggest El Niño on record.
During normal, non-El Niño conditions, the amount of warm water in the western equatorial Pacific is so large that sea levels are about 20 inches (50 centimeters) higher in the western Pacific than in the eastern Pacific.
"You can see it in the latest Jason-2 image of the Pacific," said Willis.
"The 8-inch [20-centimeter] drop in the west, coupled with the 10-inch [25-centimeter] rise in the east, has completely wiped out the tilt in sea level we usually have along the equator."

The new Jason-2 image shows that the amount of extra-warm surface water from the current El Niño (depicted in red and white shades) has continuously increased, especially in the eastern Pacific within 10 degrees latitude north and south of the equator.
In the western Pacific, the area of low sea level (blue and purple) has decreased somewhat from late October.
The white and red areas indicate unusual patterns of heat storage.
In the white areas, the sea surface is between 6 and 10 inches (15 to 25 centimeters) above normal, while in the red areas, it is about 4 inches (10 centimeters) above normal.
The green areas indicate normal conditions.
The height of the ocean water relates, in part, to its temperature, and is an indicator of the amount of heat stored in the ocean below.
Within this area, surface temperatures are greater than 86 degrees Fahrenheit (30 degrees Celsius) in the central equatorial Pacific and near 70 degrees Fahrenheit (21 degrees Celsius) off the coast of the Americas.
This El Niño signal encompasses a surface area of 6 million square miles (16 million square kilometers) -- more than twice as big as the continental United States. 

While no one can predict the exact timing or intensity of U.S. El Niño impacts, for drought-stricken California and the U.S. West, it's expected to bring some relief.
"The water story for much of the American West over most of the past decade has been dominated by punishing drought," said JPL climatologist Bill Patzert.
"Reservoir levels have fallen to record or near-record lows, while groundwater tables have dropped dangerously in many areas. Now we're preparing to see the flip side of nature's water cycle -- the arrival of steady, heavy rains and snowfall." 

In 1982-83 and 1997-98, large El Niños delivered about twice the average amount of rainfall to Southern California, along with mudslides, floods, high winds, lightning strikes and high surf.
But Patzert cautioned that El Niño events are not drought busters.
"Over the long haul, big El Niños are infrequent and supply only seven percent of California's water," he said.
"Looking ahead to summer, we might not be celebrating the demise of this El Niño," cautioned Patzert.

"It could be followed by a La Niña, which could bring roughly opposite effects to the world's weather."
La Niñas are essentially the opposite of El Niño conditions.
During a La Niña episode, trade winds are stronger than normal, and the cold water that normally exists along the coast of South America extends to the central equatorial Pacific.
La Niña episodes change global weather patterns and are associated with less moisture in the air over cooler ocean waters.
This results in less rain along the coasts of North and South America and along the central and eastern equatorial Pacific, and more rain in the far Western Pacific.
El Niño events are part of the long-term, evolving state of global climate, for which measurements of sea surface height are a key indicator.

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