National Aeronautics and Space Administration

Wallops Flight Facility

Data Products

The best way to find and use ATM data is through the NSIDC ICEBridge portal at this link  –

2015 Fall Arctic ATM data expected to be released May 01 2016

Below are direct links to data housed at NSIDC

Altimetry Products Ancillary data products
QFIT (narrow & wide) KT-19 Pyrometer Thermal Imaging (FLIR)
ICESSN Camera/Optical Spectrometer
dh/dt GPS trajectories  


The primary data product from the ATM laser altimeter is “QFIT”.  A QFIT file is a collection of geolocated laser shots tagged with time and elevation.  ICESSN is a sub-sampled version of QFIT which separates the data in platelets making it smaller and easier to analyze.  An example of QFIT vs ICESSN is in the image below


click to make larger

click to make larger