IEEE Geoscience and Remote Sensing Magazine - September 2019 - 130

It was also intended as an opportunity to discuss challenges and common issues and explore ways to increase
col la b or at ion a mong space
agenc ies and organi zat ions
and thus stimulate advanceLIDAR REMOTE SENSING
ments in technologies related
IS ANALOGOUS TO RADAR
to active space-based remote
REMOTE SENSING,
sensing measurements. The
EXCEPT LIDAR EMPLOYS
event attracted more than 70
ELECTROMAGNETIC
participants from 13 countries.
RADIATION WITH WAVEThe government space agencies
represented were NASA, ESA,
LENGTHS FOUR TO FIVE
the Japan Aerospace and ExploORDERS OF MAGNITUDE
ration Agency (JAXA), the CenSHORTER THAN RADAR.
tre National d'Etude Spatiale
(CNES), and the German Aerospace Center (DLR) (Figure 1).
Also attending were representatives from 11 universities
and 16 industries. The gathering drew participants with a
broad range of expertise in space science, engineering, technology development, program management, and policy
formulation, all seeking ways to tackle diverse challenges
and find innovative solutions through international partnerships and collaboration (Figure 2).
Following the approach of the first workshop, the
venue was open to public, but the planned presentations were primarily invited. This approach aimed to
allow the talks to introduce key areas/domains of discussion about important issues related to current and
planned space lidar missions and technologies and to

explore ways to increase collaboration on future missions. This workshop was cochaired by Dr. Upendra
N. Singh (NASA Langley Research Center), Dr. Georgios
Tzeremes (ESA Research and Technolog y Centre), and
Dr. Philippe Kechhut [Centre National de la Researche
Scientifique (CNRS)]. The workshop was organized by
Dr. Tzeremes and the event's sponsoring partners: the
GRSS, the ESA, Raymetrics, the U.S. National Oceanic
and Atmospheric Administration, Mellon Technologies,
and the Laboratoires Atmosphères, Milieux, Observations Spatiales (LATMOS).
The main topics for presentations and discussion were
as follows:
◗ advances in space-based lidar techniques and methodologies for Earth science, planetary science, and lunar
and Mars exploration
◗ science and exploration highlights, observational approaches, technologies, and measurement synergies
◗ challenges experienced in space lidar missions to
date and discussion of approaches to apply lessons
learned
◗ results from or plans for simulations, airborne experiments,
and demonstrations as precursors for space missions
◗ new and emerging space lidar technologies, particularly
in lasers, telescopes, and detectors
◗ space laser reliability factors and effects of the space environment (thermal contamination, optical damage,
and radiation)
◗ risk reduction, mitigation, and readiness efforts for
advancing and establishing high TRL levels.

FIGURE 1. Space agency representatives with local chairs: (from left) Dr. Toshiyoshi Kimura, JAXA; Philippe Goudy, ESA; Christoduolos
Protopappas, European Launcher Development Organisation; Jean-Yves Le Gall, CNES; Dr. Upendra N. Singh, NASA; and Dr. Georgios
Tzeremes, ESA.

130

IEEE GEOSCIENCE AND REMOTE SENSING MAGAZINE

SEPTEMBER 2019

IEEE Geoscience and Remote Sensing Magazine - September 2019

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