Tech

November 18, 2013

NASA begins first Antarctic airborne campaign from McMurdo Station

NASA’s Operation IceBridge has begun its 2013 Antarctic field campaign with the arrival of the agency’s aircraft and scientists at the National Science Foundation’s McMurdo Station in Antarctica.

The IceBridge mission will conduct daily survey flights through Nov. 26 on a NASA P-3 research aircraft from a base of operations at McMurdo Station. The P-3 usually is based at the agency’s Wallops Flight Facility in Virginia. As part of a multi-year project, researchers are collecting data on Antarctic land and sea ice. Previous IceBridge Antarctic missions was conducted out of Punta Arenas, Chile.

“Flying from Antarctica will allow us to survey areas that had been unreachable from Chile,” said Michael Studinger, IceBridge project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Md. “There are many scientifically important areas we can now reach from McMurdo.”

One such area is the Siple Coast on the edge of Antarctica’s Ross Ice Shelf. The ice streams there are of particular interest. “We know from spaceborne ice surface velocity measurements that some of the Siple Coast ice streams are changing,” said Studinger. “But since 2009, we have had no laser altimeter measurements of ice surface elevations in this area.”

In 2009, NASA’s ice-monitoring satellite, the Ice, Cloud and Land Elevation Satellite (ICESat) reached the end of its life and stopped collecting data. IceBridge was started the same year and will keep an eye on changing polar ice until NASA launches the ICESat successor (ICESat-2) in three years.

IceBridge also plans to fly over areas of sea ice in and around the Ross Sea where there have been no airborne ice thickness measurements. The scientists also will survey beneath the Ross Ice Shelf using a gravimeter, an instrument that can detect minute changes in gravitational fields below the aircraft.

These small changes help researchers determine the depth and shape of water cavities beneath floating ice.

The P-3 left Wallops Nov. 11 carrying a suite of instruments, including laser altimeters, radars, cameras and gravity and magnetic field sensors. The IceBridge team also has set up ground stations at McMurdo to collect global positioning system data.

Mission planners worked with the National Science Foundation and the U.S. †Antarctic Program for more than a year laying the groundwork for this campaign. The IceBridge project science office is located at Goddard.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines March 27, 2015

News General Dynamics withdraws as T-100 prime contractor General Dynamics Information Systems and Technology has withdrawn itself as the prime contractor on the T-100, the offering for the T-X trainer replacement program based on the Alenia Aermacchi M-346 design.   Business SpaceX’s fight with U.S. Air Force called a clash of perceptions Billionaire Elon Musk’s...
 
 

News Briefs March 27, 2015

Contractor extradited from Iraq pleads guilty in bribes case A man extradited from Iraq in a military contract bribery case has pleaded guilty to three charges in an agreement with federal prosecutors. U.S. District Judge Thomas Rose has scheduled sentencing for July 1 for Metin Atilan. His attorney, Nick Gounaris, says the two sides agreed...
 
 

Ninth Boeing GPS IIF reaches orbit, sends first signals

Boeing Global Positioning System (GPS) IIF satellites are steadily replenishing the orbiting constellation, continuing to improve reliability and accuracy for users around the world. The ninth GPS IIF reached orbit about three hours, 20 minutes after launching today aboard a United Launch Alliance (ULA) Delta IV rocket from Cape Canaveral Air Force Station, Fla., and...
 

 

F-35 Lightning II costs drop, report shows

A recent account of F-35 Lightning II aircraft program costs shows decreases, the Air Force’s F-35 program executive officer told reporters in a media roundtable March 24, 2015. Lt. Gen. Christopher C. Bogdan, citing this year’s selected acquisition report on the aircraft, called the roundtable to clarify cost and performance facts. He also acknowledged the...
 
 
NG-growler2

Northrop Grumman delivers center/aft ‘shipset’ for first international EA-18G Growler

Northrop Grumman photograph Northrop Grumman mechanics perform final quality inspections on the center/aft fuselage shipset produced by the company for the first Australian EA-18G Growler. The subassembly will be delivered to B...
 
 
Navy photograph by Monica McCoy

Navy conducts production acceptance test of Tomahawk missile

Navy photograph by Monica McCoy Members of the Explosive Ordnance Disposal Technology Division team at Naval Surface Warfare Center, Indian Head prepare a Tomahawk missile for a functional ground test at the Large Motor Test Fa...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>