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Topic: Antarctica

NASA’s Global Land Ice Velocity Extraction project provides near real time view of Glacier movement

 

Written by Kate Ramsayer
NASA Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Glaciers and ice sheets move in unique and sometimes surprising patterns, as evidenced by a new capability that uses satellite images to map the speed of flowing ice in Greenland, Antarctica and mountain ranges around the world.

With imagery and data from Landsat 8, a joint mission of NASA and the U.S. Geological Survey, scientists are providing a near-real-time view of every large glacier and ice sheet on Earth.

The NASA-funded Global Land Ice Velocity Extraction project, called GoLIVE, is a collaboration between scientists from the University of Colorado, the University of Alaska, and NASA’s Jet Propulsion Laboratory in Pasadena, California.

The texture on the surface of flowing ice, such as Heimdal Glacier in southern Greenland, allows Landsat 8 to map nearly all the flowing ice in the world. (NASA/John Sonntag)

The texture on the surface of flowing ice, such as Heimdal Glacier in southern Greenland, allows Landsat 8 to map nearly all the flowing ice in the world. (NASA/John Sonntag)

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NASA’s Space Exploration could discover planets similar to ones in “Star Wars: Rogue One”

 

Written by Arielle Samuelson
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – In the “Star Wars” universe, ice, ocean and desert planets burst from the darkness as your ship drops out of light speed. But these worlds might be more than just science fiction.

Some of the planets discovered around stars in our own galaxy could be very similar to arid Tatooine, watery Scarif and even frozen Hoth, according to NASA scientists.

Stormtroopers in the new Star Wars film "Rogue One" wade through the water of an alien ocean world. NASA scientists believe ocean worlds exist in our own galaxy, along with many other environments. (Disney/Lucasfilm Ltd. & TM.)

Stormtroopers in the new Star Wars film “Rogue One” wade through the water of an alien ocean world. NASA scientists believe ocean worlds exist in our own galaxy, along with many other environments. (Disney/Lucasfilm Ltd. & TM.)

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NASA looks to use Satellite Observations of Earth’s Magnetic Fields to Measure Ocean Heat

 

Written by Kate Ramsayer
NASA Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – As Earth warms, much of the extra heat is stored in the planet’s ocean — but monitoring the magnitude of that heat content is a difficult task.

A surprising feature of the tides could help, however. Scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, are developing a new way to use satellite observations of magnetic fields to measure heat stored in the ocean.

NASA scientists are developing a new way to use satellite observations of magnetic fields to measure heat stored in the ocean. (NASA Goddard Space Flight Center)

NASA scientists are developing a new way to use satellite observations of magnetic fields to measure heat stored in the ocean. (NASA Goddard Space Flight Center)

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NASA’s Aeronomy of Ice in the Mesosphere (AIM) Spacecraft sees Noctilucent Cloud Season begin over Antarctica

 

Written by Lina Tran
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Data from NASA’s Aeronomy of Ice in the Mesosphere, or AIM, spacecraft shows the sky over Antarctica is glowing electric blue due to the start of noctilucent, or night-shining, cloud season in the Southern Hemisphere – and an early one at that.

Noctilucent clouds are Earth’s highest clouds, sandwiched between Earth and space 50 miles above the ground in a layer of the atmosphere called the mesosphere.

An artist's rendition of the Aeronomy of Ice in the Mesosphere (AIM) spacecraft in orbit above Earth. (NASA)

An artist’s rendition of the Aeronomy of Ice in the Mesosphere (AIM) spacecraft in orbit above Earth. (NASA)

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NASA’s Antarctica Long Duration Balloon Flight Campaign launches Second Balloon

 

Written by Keith Koehler
NASA’s Wallops Flight Facility

NASA - National Aeronautics and Space AdministrationChincoteague Island, VA – The second of three missions as part of NASA’s Antarctica Long Duration Balloon Flight Campaign was successfully launched at 8:10am EDT, December 2nd, 2016.

The Antarctic Impulsive Transient Antenna (ANITA) from the University of Hawaii at Manoa was launched from Antarctica’s Ross Ice Shelf near McMurdo Station with support from the National Science Foundation’s United States Antarctic Program.

NASA launches Antarctic Impulsive Transient Antenna (ANITA) from Antarctica’s Ross Ice Shelf on December 2nd, 2016 at 8:10am ET.

NASA launches Antarctic Impulsive Transient Antenna (ANITA) from Antarctica’s Ross Ice Shelf on December 2nd, 2016 at 8:10am ET.

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NASA reports new study reveals Intense Melting beneath West Antarctic Glaciers

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Two new studies by researchers at NASA and the University of California, Irvine (UCI), detect the fastest ongoing rates of glacier retreat ever observed in West Antarctica and offer an unprecedented direct view of intense ice melting from the floating undersides of glaciers.

The results highlight how the interaction between ocean conditions and the bedrock beneath a glacier can influence the glacier’s evolution, with implications for understanding future ice loss from Antarctica and global sea level rise.

A view from Operation IceBridge's aircraft of Crosson Ice Shelf, foreground. Mt. Murphy is in the background. (NASA/OIB/Michael Studinger)

A view from Operation IceBridge’s aircraft of Crosson Ice Shelf, foreground. Mt. Murphy is in the background. (NASA/OIB/Michael Studinger)

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NASA Study reveals reasons for Sea Ice Changes at the Arctic, Antarctica

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Why has the sea ice cover surrounding Antarctica been increasing slightly, in sharp contrast to the drastic loss of sea ice occurring in the Arctic Ocean? A new NASA-led study finds the geology of Antarctica and the Southern Ocean are responsible.

A NASA/NOAA/university team led by Son Nghiem of NASA’s Jet Propulsion Laboratory, Pasadena, California, used satellite radar, sea surface temperature, land form and bathymetry (ocean depth) data to study the physical processes and properties affecting Antarctic sea ice.

Older, rougher and thicker Antarctic sea ice in the Bellingshausen Sea in Oct. 2007, within the sea ice shield surrounding Antarctica. The ice in this region is approximately 33 feet (10 meters) thick. (M.J. Lewis)

Older, rougher and thicker Antarctic sea ice in the Bellingshausen Sea in Oct. 2007, within the sea ice shield surrounding Antarctica. The ice in this region is approximately 33 feet (10 meters) thick. (M.J. Lewis)

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NASA Scientists help study the seas around Antarctica

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A team of scientists has launched a series of research flights over the remote seas surrounding Antarctica in an effort to better understand how much carbon dioxide the icy waters are able to lock away.

Called ORCAS, the field campaign will provide a rare look at how oxygen and carbon dioxide are exchanged between the air and the Southern Ocean. The campaign is led by the National Center for Atmospheric Research (NCAR). Michelle Gierach of NASA’s Jet Propulsion Laboratory, Pasadena, California, is a principal investigator, along with other scientists from a range of universities and research institutions.

The ORCAS campaign is studying carbon dioxide in the sea around Antarctica. (Flickr user Reeve Jolliffe/CC BY-NC-ND 2.0)

The ORCAS campaign is studying carbon dioxide in the sea around Antarctica. (Flickr user Reeve Jolliffe/CC BY-NC-ND 2.0)

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NASA’s New Horizons spacecraft takes stunning photos of Pluto

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – The latest images from NASA’s New Horizons spacecraft have scientists stunned – not only for their breathtaking views of Pluto’s majestic icy mountains, streams of frozen nitrogen and haunting low-lying hazes, but also for their strangely familiar, arctic look.

This new view of Pluto’s crescent — taken by New Horizons’ wide-angle Ralph/Multispectral Visual Imaging Camera (MVIC) on July 14th and downlinked to Earth on September 13th — offers an oblique look across Plutonian landscapes with dramatic backlighting from the sun.

Pluto’s Majestic Mountains, Frozen Plains and Foggy Hazes: Just 15 minutes after its closest approach to Pluto on July 14, 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. (NASA/JHUAPL/SwRI)

Pluto’s Majestic Mountains, Frozen Plains and Foggy Hazes: Just 15 minutes after its closest approach to Pluto on July 14, 2015, NASA’s New Horizons spacecraft looked back toward the sun and captured this near-sunset view of the rugged, icy mountains and flat ice plains extending to Pluto’s horizon. (NASA/JHUAPL/SwRI)

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NASA selects Instruments for mission to Jupiter’s moon Europa

 

Written by Preston Dyches
NASA’ Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has selected nine science instruments for a mission to Jupiter’s moon Europa, to investigate whether the mysterious icy moon could harbor conditions suitable for life.

NASA’s Galileo mission yielded strong evidence that Europa, about the size of Earth’s moon, has an ocean beneath a frozen crust of unknown thickness. If proven to exist, this global ocean could have more than twice as much water as Earth.

With abundant salt water, a rocky sea floor, and the energy and chemistry provided by tidal heating, Europa could be the best place in the solar system to look for present day life beyond our home planet.

This artist's rendering shows a concept for a future NASA mission to Europa in which a spacecraft would make multiple close flybys of the icy Jovian moon, thought to contain a global subsurface ocean. (NASA/JPL-Caltech)

This artist’s rendering shows a concept for a future NASA mission to Europa in which a spacecraft would make multiple close flybys of the icy Jovian moon, thought to contain a global subsurface ocean. (NASA/JPL-Caltech)

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