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CALIPSO Lidar Level 2 1 km Cloud Layer, V4-20

Published by NASA/LARC/SD/ASDC | National Aeronautics and Space Administration | Catalog Last Checked: May 06, 2026 at 06:50 PM | Dataset Last Updated: April 20, 2026
CAL_LID_L2_01kmCLay-Standard-V4-20 is the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Lidar Level 2 1 km Cloud Layer, Version 4-20 data product. Data for this product was collected using the CALIPSO Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument. Data generation and distribution of this V4.20 product ended on July 1, 2020, to support a change in the operating system of the CALIPSO production clusters. The V4.21 data product covers July 1, 2020, to January 19, 2020. CALIPSO was launched on April 28, 2006, to study the impact of clouds and aerosols on the Earth's radiation budget and climate. It flies in the international A-Train constellation for coincident Earth observations. The CALIPSO satellite comprises three instruments: CALIOP, Imaging Infrared Radiometer (IIR), and Wide Field Camera (WFC). CALIPSO is a joint satellite mission between NASA and the French Agency CNES (Centre National D’Etudes Spatiales).

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Complete Metadata
@type dcat:Dataset
accessLevel public
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                                            [
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}
description CAL_LID_L2_01kmCLay-Standard-V4-20 is the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Lidar Level 2 1 km Cloud Layer, Version 4-20 data product. Data for this product was collected using the CALIPSO Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument. Data generation and distribution of this V4.20 product ended on July 1, 2020, to support a change in the operating system of the CALIPSO production clusters. The V4.21 data product covers July 1, 2020, to January 19, 2020. CALIPSO was launched on April 28, 2006, to study the impact of clouds and aerosols on the Earth's radiation budget and climate. It flies in the international A-Train constellation for coincident Earth observations. The CALIPSO satellite comprises three instruments: CALIOP, Imaging Infrared Radiometer (IIR), and Wide Field Camera (WFC). CALIPSO is a joint satellite mission between NASA and the French Agency CNES (Centre National D’Etudes Spatiales).
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identifier 10.5067/CALIOP/CALIPSO/LID_L2_01KMCLAY-STANDARD-V4-20
keyword 
                                            [
  "earth-science-clouds-atmosphere-cloud-properties-cloud-base-height",
  "earth-science-clouds-atmosphere-cloud-properties-cloud-ceiling",
  "earth-science-clouds-atmosphere-cloud-properties-cloud-midlayer-temperature",
  "earth-science-lidar-spectral-engineering-lidar-backscatter",
  "earth-science-lidar-spectral-engineering-lidar-depolarization-ratio"
]
license https://www.usa.gov/government-works
modified 2026-04-20
programCode 
                                            [
  "026:000"
]
publisher 
                                            {
  "name": "NASA/LARC/SD/ASDC",
  "@type": "org:Organization"
}
spatial ["CARTESIAN",[{"Boundary":{"Points":[{"Latitude":-90,"Longitude":-180},{"Latitude":-90,"Longitude":180},{"Latitude":90,"Longitude":180},{"Latitude":90,"Longitude":-180},{"Latitude":-90,"Longitude":-180}]}}]], Minimum Altitude;Maximum Altitude, -1.8183749 km;39.79567 km
temporal 2006-06-12/2020-07-01
theme 
                                            [
  "Earth Science"
]
title CALIPSO Lidar Level 2 1 km Cloud Layer, V4-20

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