Rapid Visualization and Analysis of ICESat-2 Data using an Intuitive GUI
and JupyterHub Notebooks
Abstract
NASA’s Ice, Cloud, and land Elevation Satellite-2, ICESat-2, carries the
Advanced Topographic Laser Altimeter System, ATLAS, which sends 10,000
laser pulses per second towards Earth and records individual photons
reflected back to its telescope. The volume of data produced by the
instrument, nearly a TB of data every day, presents a challenges for the
user wishing to explore and do quick analysis on the data. Although
NSIDC, the data center responsible for archiving and distributing
ICESat-2 data, provides services such as browse and spatial, temporal
and parameter subsetting on the data, these are not necessarily
conducive to exploratory work. OpenAltimetry, a collaborative project
between NSIDC and the San Diego Supercomputer Center at the University
of California, San Diego, has created an online platform that allows
users to quickly view photon clouds, or waveform energy profiles in the
case of ICESat/GLAS, the predecessor mission to ICESat-2/ATLAS, for any
time and location of interest to the user, as well as the
surface-specific elevations from the higher level ATLAS products.
OpenAltimetry emphasizes ease-of-use and rapid response times. NASA’s
Ice, Cloud, and land Elevation Satellite-2, ICESat-2, carries the
Advanced Topographic Laser Altimeter System, ATLAS, which sends 10,000
laser pulses per second towards Earth and records individual photons
reflected back to its telescope. The volume of data produced by the
instrument, nearly a TB of data every day, presents a challenges for the
user wishing to explore and do quick analysis on the data. Although
NSIDC, the data center responsible for archiving and distributing
ICESat-2 data, provides services such as browse and spatial, temporal
and parameter subsetting on the data, these are not necessarily
conducive to exploratory work. OpenAltimetry, a collaborative project
between NSIDC, Scripps Institution of Oceanography and the San Diego
Supercomputer Center at the University of California San Diego, has
created an online platform that allows users to quickly view photon
clouds, or waveform energy profiles in the case of ICESat/GLAS, the
predecessor mission to ICESat-2/ATLAS, for any time and location of
interest to the user, as well as the surface-specific elevations from
the higher level ATLAS products. OpenAltimetry emphasizes ease-of-use
and rapid response times. A user can do more in depth data analysis on a
Jupyter notebook invoked through OpenAltimetry’s map-based interface,
thus providing a full data analysis stack that lives in the cloud and
enables scientists to do their work without investing a lot of time
thinking about dependencies and deployments.