Tech

March 25, 2013

NASA beings new season of Arctic ice science flights

NASA’s Operation IceBridge scientists have begun another season of research activity over Arctic ice sheets and sea ice with the first of a series of science flights from Greenland completed on Wednesday.

A specially equipped P-3B research aircraft from NASA’s Wallops Flight Facility in Wallops Island, Va., is operating out of airfields in Thule and Kangerlussuaq, Greenland, and Fairbanks, Alaska. The flights will carry out survey flights over land and sea ice in and around Greenland and the Arctic Ocean through early May.

NASA began the Operation IceBridge airborne campaign in 2009 as a way to continue the record of polar ice measurements made by NASA’s Ice, Cloud and Land Elevation Satellite’s (ICESat) after the satellite stopped gathering data. By flying campaigns in the Arctic and Antarctic each year, IceBridge is maintaining a continuous record of change until the launch of ICESat-2 in 2016.

This year’s IceBridge campaign will continue closely monitoring Arctic sea ice and key areas of the Greenland ice sheet, while expanding coverage in Antarctica.

“Our long term plan, beginning with the Arctic 2013 campaign, is to scale back the land ice portion of the campaign while maintaining the same coverage of sea ice as in previous campaigns,” said Michael Studinger, IceBridge project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Md.

Dramatic changes to Arctic sea ice, such as the record-breaking minimum levels reached in 2012, and the potential societal effects of ice loss in the region are driving the demand for sea ice measurements. The mission will survey areas of Arctic sea ice near Greenland with flights out of the U.S. airbase in Thule. IceBridge also will carry out a series of flights from Fairbanks to measure ice in the Beaufort and Chukchi seas north of Alaska. Researchers will gather critical data during their flights between Greenland and Alaska.

In addition to sea ice, IceBridge will survey the Greenland Ice Sheet in the interior of the country and in rapidly changing areas along the coast, such as the Jakobshavn Glacier.

“We’re starting to see how the whole ice sheet is changing,” Studinger said. “Thinning at the margins is now propagating to the interior.”

IceBridge scientists will collaborate with other groups doing research in the region, such as the U.S. Army Corps of Engineers Cold Regions Engineering Laboratory in Hanover, N.H., and the Naval Research Laboratory (NRL) in Washington. The laboratories are working together to collect snow depth measurements on Elson Lagoon near Barrow, Alaska, to help NRL evaluate a snow radar they are using.

Joining the IceBridge team are three teachers who will spend time working with the researchers to learn about polar science. High school science teachers from Libertyville, Illinois; Aalborg, Denmark; and Sisimiut, Greenland, will spend time aboard the P-3B during IceBridge survey flights.

IceBridge is providing these teachers with a research experience they can use to better teach science and inspire their students to study scientific fields. The teachers’ involvement is the result of a partnership with the U.S. State Department, the governments of Denmark and Greenland, and the National Science Foundation-funded Polar Teachers and Researchers Exploring and Collaborating program.

 




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>