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Related Experiment Video

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Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring
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Published on: October 24, 2025

Cloud top remote sensing by airborne lidar.

J D Spinhirne1, M Z Hansen, L O Caudill

  • 1NASA Goddard Greenbelt, Maryland 2077, USA.

Applied Optics
|April 15, 2010
PubMed
Summary

A high-altitude lidar system measured cloud properties like height and backscattering from a 19-km altitude. This automated sensor provided initial data on diverse cloud types, aiding atmospheric research.

Area of Science:

  • Atmospheric Science
  • Remote Sensing
  • Cloud Physics

Background:

  • Cloud properties are crucial for understanding Earth's radiative balance and climate.
  • Remote sensing techniques, particularly lidar, offer valuable tools for cloud observation.

Purpose of the Study:

  • To report initial findings from a novel lidar system deployed on a high-altitude aircraft.
  • To characterize cloud top height, backscattering, and signal depolarization.

Main Methods:

  • Utilized a lidar system with a doubled Nd:YAG laser transmitter (5 Hz) onboard a high-altitude research aircraft.
  • Operated the fully automated, microprocessor-controlled sensor from a nominal 19-km altitude.
  • Acquired simultaneous passive visible and infrared measurements for comprehensive cloud analysis.

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Main Results:

  • Successfully obtained measurements of cloud top height, backscattering, and signal depolarization.
  • Collected data across a wide variety of cloud cover conditions.
  • Initial observations provide a basis for further cloud property analysis.

Conclusions:

  • The high-altitude lidar system is capable of acquiring detailed cloud measurements.
  • The collected data contributes to a better understanding of cloud characteristics and their atmospheric impact.
  • Further analysis of these initial observations will refine cloud models and remote sensing techniques.