Operation IceBridge Tracks over the Helheim Glacier in Greenland

These visualizations show data from the Helheim Glacier in Greenland collected by Pre-Icebridge in 1998 and Operation Icebridge in 2013. Data from both the Airborne Topographic Mapper (ATM) and the Digital Mapping System (DMS) are included.The first visualization shows how the scanner on the aircraft acquired the data, building up a representation of the 3d laser scanned points as we go. Once the calving front from 1998 is revealed, the 2013 data is faded in showing the differences between the years. The dots are colored initially by absolute height with reds higher and blues lower; after the 2013 data is added, the dot colors change to a localized scheme with reds higher than nearby points and blues lower than nearby points. ATM data is added at the end for some context.The second visualization shows the DMS data with ATM data at the 2013 calving front. The DMS data is overlayed onto photogrametrically determined altitudes which don heights. Flying down the Helheim Glacier in Greenland as ATM altimetry date is shown - first with data from 1998 then data from 2013 is added ATM and DMS data from 2013 near the calving front Rotate around particle representation of ATM data

Earth’s rising seas are some of most visible signs of our warming planet. Over the last 20 years, NASA satellites, airborne missions and field campaigns show a steady rise in global sea levels as the world’s polar ice sheets melt. As the Earth continues to warm, new research suggests sea levels could rise by as much as several feet in the next 100 years. Sea level rise is one of the biggest environmental challenges of the 21st Century, and NASA research is helping us understand how much our oceans will rise, and how fast that will happen. Hear from NASA scientists about the latest research on rising sea levels and melting polar ice. See surprising new views of ice loss in Greenland and Antarctica, and talk about the consequences of our rising oceans.Sea Level Rise Gallery.Material from the August 26, 2015 teleconference is here. Sea Level Rising Inteview with Tom Wagner Sea Level Interview (in Spanish) with Carlos Del CastilloFor complete transcript, click here. Interview with NASA s Cyrosphere Program Manager, Dr. Tom Wagner B-roll For More InformationSee [nasa.gov/jpl](nasa.gov/jpl)