Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

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Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

  CALIPSO CALIOP L2 Lidar Standard V4.20 Release Announcement
  CALIPSO CALIOP V1.00 L3 Cloud Occurrence Formal Release Announcement
  CALIPSO CALIOP V1.00 L2 Blowing Snow Announcement

CALIPSO L2 Aerosol Profile Data

Aerosol Profile Data Products

Aerosol profile data using the CALIPSO Lidar Ratio selection algorithm 

NOTE: Users are strongly cautioned against using Expedited data products as the basis for research findings or journal publications. Standard data sets only should be used for these purposes.
40kmAProCal is no longer produced. CAL_LID_L2_05kmAPro-Prov-V3-01 takes its place.
Products Temporal Resolution Spatial Resolution Temporal Coverage

Version 4.20, Standard

5.92 seconds

5 km

06/12/2006 - Present


Version 3.40, Provisional

Expedited Data Set Information icon

5.92 seconds

5 km

12/01/2016 - present


Version 3.30, Provisional

5.92 seconds

5 km

03/01/2013 - 11/30/2016


Version 3.02, Provisional

5.92 seconds

5 km

11/01/2011 - 2/28/2013


Version 3.01, Provisional

5.92 seconds

5 km

06/13/2006 - 02/16/2009, 03/17/2009 - 10/31/2011

Project Documentation

Product Specific Documentation

Introductory Material
Product Specifics