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CALIPSO: Cloud and Aerosol Lidar Level 2 Aerosol Profile Version 3-30 Product (CAL_LID_L2_05kmAPro-Prov-V3-30)

Latest Data Update: 2015-02-21
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-07-25
Download Stats: last 12 months
Dataset Size: 23.68K Files | 1TB


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 objectives of the mission was to supply unique data set of vertical cloud and aerosol profiles.

This dataset contains cloud and aerosol lidar level 2 aerosol profile version 3-30 data derived from Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) Level 1B product with uniform horizontal resolution of 5 km and ancillary data. There are no layer descriptors included in the datasets, and the spatial distribution of the aerosol layers depends on the aerosol layer fraction and atmospheric volume description parameters. The aerosol backscatter and extinction coefficients are obtained through the CALIPSO Lidar Ratio selection algorithm. Version 3-30 was released in April, 2013. This version incorporates two ancillary input files updated from those used in versions 3-01 and 3-02: GEOS-5 processing system version 5.9.1 from version 5.2; and the enhanced Air Force Weather Authority (AFWA) Snow and Ice Datasets. The resulting changes are relatively small.

Citable as:  National Aeronautics and Space Administration (2014): CALIPSO: Cloud and Aerosol Lidar Level 2 Aerosol Profile Version 3-30 Product (CAL_LID_L2_05kmAPro-Prov-V3-30). NERC Earth Observation Data Centre, date of citation.
Abbreviation: Not defined
Keywords: NASA, CALIPSO, CALIOP, Cloud, Aerosol


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Use of these data is covered by the following licence: 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 the NEODC

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
Abstract Deployed on Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Satellite.
Input Description None
Output Description None
Software Reference None
Output Description


  • units: NoUnits
  • var_id: Aerosol_Layer_Fraction
  • units: NoUnits
  • var_id: Aerosol_Multiple_Scattering_Profile_1064
  • units: NoUnits
  • var_id: Aerosol_Multiple_Scattering_Profile_532
  • units: NoUnits
  • var_id: Atmospheric_Volume_Description
  • var_id: Backscatter_Coefficient_1064
  • units: sr^-1km^-1
  • units: sr^-1km^-1
  • var_id: Backscatter_Coefficient_Uncertainty_1064
  • units: NoUnits
  • var_id: CAD_Score
  • units: NoUnits
  • var_id: Cloud_Layer_Fraction
  • units: NoUnits
  • var_id: Column_Feature_Fraction
  • units: NoUnits
  • var_id: Column_IAB_Cumulative_Probability
  • var_id: Column_Integrated_Attenuated_Backscatter_532
  • units: sr^-1
  • units: NoUnits
  • var_id: Column_Optical_Depth_Aerosols_1064
  • units: NoUnits
  • var_id: Column_Optical_Depth_Aerosols_532
  • units: NoUnits
  • var_id: Column_Optical_Depth_Aerosols_Uncertainty_1064
  • units: NoUnits
  • var_id: Column_Optical_Depth_Aerosols_Uncertainty_532
  • units: NoUnits
  • var_id: Column_Optical_Depth_Cloud_532
  • units: NoUnits
  • var_id: Column_Optical_Depth_Cloud_Uncertainty_532
  • units: NoUnits
  • var_id: Column_Optical_Depth_Stratospheric_1064
  • units: NoUnits
  • var_id: Column_Optical_Depth_Stratospheric_532
  • units: NoUnits
  • var_id: Column_Optical_Depth_Stratospheric_Uncertainty_1064
  • units: NoUnits
  • var_id: Column_Optical_Depth_Stratospheric_Uncertainty_532
  • var_id: Day_Night_Flag
  • units: NoUnits
  • var_id: Extinction_Coefficient_1064
  • units: km^-1
  • units: km^-1
  • var_id: Extinction_Coefficient_532
  • units: km^-1
  • var_id: Extinction_Coefficient_Uncertainty_1064
  • units: km^-1
  • var_id: Extinction_Coefficient_Uncertainty_532
  • units: NoUnits
  • var_id: Extinction_QC_Flag_1064
  • units: NoUnits
  • var_id: Extinction_QC_Flag_532
  • units: deg
  • var_id: Latitude
  • units: deg
  • var_id: Longitude
  • var_id: Molecular_Number_Density
  • units: m^-3
  • units: NoUnits
  • var_id: Particulate_Depolarization_Ratio_Profile_532
  • units: NoUnits
  • var_id: Particulate_Depolarization_Ratio_Uncertainty_532
  • units: sr^-1km^-1
  • var_id: Perpendicular_Backscatter_Coefficient_532
  • units: sr^-1km^-1
  • var_id: Perpendicular_Backscatter_Coefficient_Uncertainty_532
  • var_id: Pressure
  • units: hPA
  • units: sec
  • var_id: Profile_Time
  • units: NoUnits
  • var_id: Profile_UTC_Time
  • units: %
  • var_id: Relative_Humidity
  • units: NoUnits
  • var_id: Samples_Averaged
  • units: km
  • var_id: Surface_Elevation_Statistics
  • units: m/s
  • var_id: Surface_Winds
  • units: degrees C
  • var_id: Temperature
  • units: sr^-1km^-1
  • var_id: Total_Backscatter_Coefficient_532
  • units: sr^-1km^-1
  • var_id: Total_Backscatter_Coefficient_Uncertainty_532
  • units: km
  • var_id: Tropopause_Height
  • units: degrees C
  • var_id: Tropopause_Temperature

Co-ordinate Variables

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