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  • Layer Meanings for the CALIPSO version 4 Level 2 cloud layer product
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This question was submitted on behalf of a user:

I'd like to work on the cloud layer product in 5 km resolution, f.ex. CAL_LID_L2_05kmCLay-Standard-V4-10.2008-01-01T04-48-09ZN.hdf. I have difficulty to understand why the maximal number of layers in cloud layer products are 10. What does each layer represent? Since Feature type ranges from 0-7, cloud subtype ranges also from 0-7. Where can I find a table to list the meaning of each layer?

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  1. >>What does each layer represent?

    Each layer represents a cloud layer detected at differing horizontal averages. 

    >>I have difficulty to understand why the maximal number of layers in cloud layer products are 10

    For any given 5km profile contained in this file we don't expect more than 10 distinct cloud layers. 

    >>Since Feature type ranges from 0-7, cloud subtype ranges also from 0-7. Where can I find a table to list the meaning of each layer?

    https://www-calipso.larc.nasa.gov/resources/calipso_users_guide/data_summaries/vfm/index.php#feature_classification_flags

    Table 44 contained in the link above will describe what each of the parameters mean.