Imaging · collection · 2025

CALIPSO Lidar Level 3 Cloud Occurrence Data, Standard V2-00

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/caliop/calipso/l3_cloud_occurrence-standard-v2-00

CAL_LID_L3_Cloud_Occurrence-Standard-V2-00_V2-00 are Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Lidar(CALIOP) Level 3 Cloud Occurrence products.

Description

The Lidar Level 3 Cloud Occurrence product reports global distributions of cloud occurrence by counts on a uniform spatial grid. At each grid, the number of detected ice cloud samples is also reported as a histogram of ice cloud layer optical depth.

CALIPSO was a partnership between NASA and the French Space Agency, CNES. CALIPSO was launched on April 28, 2006 to study the many roles played by clouds and aerosols in Earth’s climate and weather. It flew in the international A-Train constellation for coincident Earth observations from launch until September 13, 2018, when CALIPSO began lowering its orbit from 705 km to 688 km (428 miles) above the Earth to resume formation flying with CloudSat as part of the “C-Train”.

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The CALIPSO satellite carried three remote sensing instruments: the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP), the Imaging Infrared Radiometer (IIR), and the Wide Field-of-View Camera (WFC). By mutual agreement between NASA and CNES, the CALIPSO science mission concluded on August 1, 2023.

Topics

Stated by source: Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations · Cloud-Aerosol Lidar with Orthogonal Polarization · Clouds
From keywords: Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Inferred from text: Atmospheric sciences 69% · Imaging 75% · Satellite remote sensing 65%

Provenance · 2 source records, 20 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C3964849739-LARC_CLOUD	7 d ago	JSON v1
NASA Data Portal	daa6069a-7b85-45bf-a3ab-de92db8e3716	4 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3701	enrichment · NASA CMR	taxonomy-embedding@1.0.0	title+keywords+description (69%)
concepts[field].local:field:astronomy	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:earth-environmental	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:ocean-atmospheric	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:physics	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:caliop	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/clouds	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[modality].local:modality:imaging	enrichment · NASA CMR	keyword-concept-rules@1.0.0	title+description (75%)
concepts[modality].local:modality:remote-sensing	enrichment · NASA CMR	keyword-concept-rules@1.0.0	title+description (65%)
concepts[platform].gcmd_platform:calipso	source · NASA CMR	connector:nasa_cmr@1.0.0
created_date	source · NASA CMR	connector:nasa_cmr@1.0.0
description	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/Abstract
license_text	source · data nasa gov	connector:data_nasa_gov@1.0.0
publication_date	source · NASA CMR	connector:nasa_cmr@1.0.0
spatial	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/SpatialExtent
temporal	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/TemporalExtents
title	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/EntryTitle
updated_date	source · data nasa gov	connector:data_nasa_gov@1.0.0
version_label	source · NASA CMR	connector:nasa_cmr@1.0.0

CALIPSO Lidar Level 3 Cloud Occurrence Data, Standard V2-00

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