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Related Experiment Video

Updated: Feb 12, 2026

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

Fabrication of Microscope Stage for Vertical Observation with Temperature Control Function

Published on: July 31, 2019

New Insights about Cloud Vertical Structure from CloudSat and CALIPSO observations.

Lazaros Oreopoulos¹, Nayeong Cho^2,1, Dongmin Lee^3,1

¹NASA-GSFC, Earth Science Division, Greenbelt MD 20771 USA.

Journal of Geophysical Research. Atmospheres : JGR

|March 27, 2018

Summary

This study classifies cloud vertical structures (CVS) using satellite data, revealing single-layer low and high clouds are most common. These structures significantly impact global radiative warming and cooling effects.

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Area of Science:

Atmospheric Science
Earth Observation
Climate Science

Background:

Active cloud observations from CloudSat and CALIPSO satellites provide novel insights into hydrometeor layer vertical structure.
Understanding cloud vertical stratification is crucial for accurate climate modeling and radiative transfer calculations.

Purpose of the Study:

To categorize global cloud vertical structures (CVS) using merged CloudSat-CALIPSO data.
To determine the global frequency of occurrence for different CVS classes.
To analyze the radiative effects of various CVS classes on Earth's climate system.

Main Methods:

Utilized the 2B-CLDCLASS-LIDAR merged CloudSat-CALIPSO product for global analysis.
Classified clouds into major Cloud Vertical Structure (CVS) categories based on layer overlap.
Examined seasonal, geographical, diurnal, and surface-type variations in CVS prevalence.
Investigated radiative impacts of CVS classes on planetary, surface, and atmospheric levels.
Compared active (CloudSat-CALIPSO) and passive (MODIS) cloud observations.

Main Results:

Single-layer low and high clouds are the most frequent CVS classes, comprising approximately 53% of cloudy conditions.
Other significant classes include high clouds overlying low clouds and vertically extensive clouds.
CVS prevalence varies significantly with season, location, time of day, and surface type (land vs. ocean).
Single-layer low clouds are primary drivers of planetary and atmospheric cooling and surface warming via thermal infrared radiation.
Analysis confirmed consistency between active and passive remote sensing views of cloud regimes.

Conclusions:

Cloud vertical structure is a critical factor influencing Earth's radiative balance.
The identified CVS classes provide a framework for understanding cloud impacts on climate.
Satellite synergy, combining active and passive sensors, enhances cloud characterization and validation.