Earthdata Forum

I am trying to plot the frequency of occurrences of aerosol feature subtype using the CALIPSO Vertical feature mask data (CAL_LID_L2_VFM-Standard-V4-51). I am able to plot the contours of the feature subtypes using https://hdfeos.org/zoo/LaRC_CALIPSO_py.php. Since my area and time period of study is large, I wanted to plot the total feature subtypes in my study area. Thus is there any script to plot the frequency of occurrences of the feature subtypes in a particular area (between a particular lat/lon)?

hi Shravu,

In a previous Forum post (viewtopic.php?t=3671), I found this link to a CALIPSO article on how to generate a profile of mean CALIPSO aerosol extinction, an example of basic quality screening techniques for CALIPSO level 2 profile extinction products using MATLAB.

https://www-calipso.larc.nasa.gov/resources/calipso_users_guide/tools/files/Generate_Mean_Extinction_Profile_v3.pdf

I think their example, even though it's in MATLAB, can be written in Python and with a few changes could provide you with the results you need.

Thank you,

David W.
NASA Langley ASDC DAAC Lifecycle

Thankyou for your response, but I am trying to plot CALIPSO vertical feature mask data in two ways (attached sample images). First i want the contour plots and next i want the frequency of occurrences of each feature subtype (2nd image shows the frequency of occurrence of dust feature subtype).

Dear Shravu,
Please go to the HDF-EOS Tools and Information Center where they can better assist you with your plotting and code concerns.

eoshelp@hdfgroup.org

Thank you for the assistance. My issue is resolved.