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Dataset

 

CALIPSO: Cloud and Aerosol Lidar Level 2 Vertical Feature Mask Version 4-51 Product (CAL_LID_L2_VFM-Standard-V4-51)

Latest Data Update: 2024-11-08
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2025-04-16
Download Stats: last 12 months
Dataset Size: 161.82K Files | 7TB

Abstract

The Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) was a joint mission between NASA and the French space agency Centre National d'Etudes Spatiales. The main objective of the mission was to supply a unique data set of vertical cloud and aerosol profiles.

This dataset contains cloud and aerosol lidar level 2 vertical feature mask version 4-51 data product describes the horizontal and vertical distribution of the cloud and the aerosol layers observed by the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP). CAL_LID_L2_VFM-Standard-V4-51 is the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Lidar Level 2 Vertical Feature Mask (VFM), Version 4-51 data product. Data for this product was collected using the CALIPSO Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument. The version of this product was changed from 4-20 to 4-21 to account for a change in the operating system of the CALIPSO production cluster.

Citable as:  National Aeronautics and Space Administration (2025): CALIPSO: Cloud and Aerosol Lidar Level 2 Vertical Feature Mask Version 4-51 Product (CAL_LID_L2_VFM-Standard-V4-51). NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/9cbc9b1875474d65ad1e4697007e88b7

Abbreviation: Not defined
Keywords: NASA, CALIPSO, CALIOP, Cloud, Aerosol

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use of these data is covered by the following licence(s):
https://eosweb.larc.nasa.gov/citing-asdc-data
When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

These data were obtained from the NASA Langley Research Center Atmospheric Science Data Center and mirrored by CEDA.

File Format:
Data are HDF4 formatted

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Computation Element: 1

Title Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Satellite VFM product computation
Abstract Deployed on Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Satellite. Computation to create the Version 4-51 VFM product. The new version 4.51 (V4.51) of the CALIPSO lidar (CALIOP) Level 2 (L2) data products contain a number of improvements and additions over the previous version (V4.2) that was released in October 2018. A summary of the major changes addressed in this release are detailed in the data quality documentation link, as well as a section high-lighting known issues.
Input Description None
Output Description None
Software Reference None
Output Description

None

  • var_id: Day_Night_Flag
  • units: NoUnits
  • units: NoUnits
  • var_id: Feature_Classification_Flags
  • units: NoUnits
  • var_id: Land_Water_Mask
  • var_id: Latitude
  • units: �
  • var_id: Longitude
  • units: �
  • units: J
  • var_id: Minimum_Laser_Energy_532
  • units: NoUnits
  • var_id: Profile_ID
  • units: s
  • var_id: Profile_Time
  • var_id: Profile_UTC_Time
  • units: yymmdd.ffffffff
  • units: km
  • var_id: Spacecraft_Position
  • units: NoUnits
  • var_id: ssLand_Water_Mask
  • units: J
  • var_id: ssLaser_Energy_532
  • var_id: ssLatitude
  • units: �
  • var_id: ssLongitude
  • units: �
  • units: NoUnits
  • var_id: ssProfile_ID
  • units: s
  • var_id: ssProfile_Time
  • var_id: ssProfile_UTC_Time
  • units: yymmdd.ffffffff

Co-ordinate Variables

Coverage
Temporal Range
Start time:
2006-06-12T00:00:00
End time:
2023-06-30T23:59:59
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°