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Land, Vegetation and Ice Sensor (LVIS)

LVIS instrument

LVIS instrument

Scientists at Goddard’s Laser Remote Sensing Laboratory designed and developed the Laser Vegetation Imaging Sensor (LVIS) a laser altimeter that can map large areas of sea ice and glacier zones from a high altitude. LVIS combines ice elevation learned from laser pulse timing with aircraft position from onboard GPS and inertial navigation systems to produce accurate ice elevation data.

LVIS has flown together with the other IceBridge instruments aboard the DC-8 and P-3B airborne laboratories until 2011, when it was assigned to a dedicated aircraft. Since that time, LVIS has flown in a King Air B-200, a Gulfstream G-V and an HU-25C Guardian Falcon.

LVIS is used to survey previously unmeasured areas of ice and as a way to validate and calibrate measurements by ICESat and CryoSat-2. Its ability to survey larger areas greatly improves IceBridge’s capability to survey ice.

LVIS-GH
(NASA Global Hawk)

A smaller version of the LVIS instrument, known as LVIS-GH, is under development for use in NASA’s Global Hawk unpiloted aircraft system.

More about LVIS

Plot of LVIS data

Plot of LVIS data overlaid on terrain in Google Earth

 
Ice on Antarctica's Ellsworth Mountains, 10/22/2012 Ice on the Ellsworth Mountains in Antarctica as seen from the IceBridge DC-8 on Oct. 22, 2012. The Ellsworth Mountains are home to Antarctica’s highest point, Vinson Massif (16,050 ft / 4,892 m). Credit: NASA / James Yungel