Data Portal

Use the G-LiHT Data Center Webmap to download data:

Close-up screenshot of G-LiHT webmap  Overview screenshot of G-LiHT Webmap

- or -

connect to fusionftp.gsfc.nasa.gov/G-LiHT via anonymous ftp.

Alaska Aerial Imagery

High-resolution aerial photography from the 2014 Alaska campaign can be downloaded via the following webmap:


Alaska DSLR Photography 2014

Data Products and File Formats

   LiDAR
  •  Point cloud data (ASPRS LAS format with classified ground returns and heights AGL)
  •  Bare earth elevation and canopy height models
  •  Common lidar metrics (e.g., height and density percentiles)
   Spectroscopy
  • Vegetation indices and spectral bio-indicators (e.g., NDVI, EVI, PRI, red-edge)
  • Reflectance spectra (400-1000 nm, 5 nm FWHM)
   Thermal
  • Surface temperature

 

Calibrated and georeferenced data products are available in LAS (lidar point clouds), floating point GeoTIFFs (gridded products), and Keyhole Markup Language file formats (flight trajectories; GeoTIFF superoverlays).

 

Data Policy

NASA’s Earth Science Program and promotes the full and open sharing of data with all users, in accordance with NASA's Data and Information Policy.

Every effort has been taken by the G-LiHT team to ensure that accurate, well-calibrated data is released in a timely manner.  In addition, we rely on data users to provide us with feedback to continually improve our data processing algorithms and higher-level G-LiHT products.  If users should discover mistakes or anomalies in the data products, we would appreciate hearing from you.

G-LiHT scientists are willing collaborators who will be able to share their scientific expertise, first-hand knowledge of the acquisitions, and unique insight on the interpretation of these data.  You have the option to request collaboration and co-authorship from the G-LiHT team, but this is not mandatory to use the data.

G-LiHT is a PI-lead instrument that was designed, assembled and maintained using funds from competed research grants.  These funding sources should be acknowledged when publishing studies with G-LiHT data, and we request that you please contact the PI (see below) if you have questions about acknowledging G-LiHT data.  Also, we would appreciate notification of your publications and presentations so that we can add them to the growing list of G-LiHT citations

For more information about G-LiHT and these data, please contact us.