Query about the dimension size of ISCCP-HGM data

[ANKAN SARKAR]

Hi ISCCP team,

                          I have downloaded ISCCP HGM data using the following link

https://www.ncei.noaa.gov/data/international-satellite-cloud-climate-project-isccp-h-series-data/access/isccp/hgm/. 

Now I am interested in extracting 'Mean cloud amount for IR-cloud types' from this data. I have displayed this data using ncdisp command in MATLAB and what it displayed is shown below.

 cldamt_irtypes    
           Size:       41252x3
           Dimensions: eqcell,cloud_irtype
           Datatype:   int16
           Attributes:
                       long_name    = 'Mean cloud amount for IR-cloud types'
                       units        = 'percent'
                       valid_min    = 0
                       valid_max    = 1000
                       scale_factor = 0.1
                       _FillValue   = 32767
                       description  = 'Cloud detected by IR threshold regardless of VIS threshold, IR type determined by cloud top pressure for blackbody'. 

Now the dimension size of this data is showing  (41252x3) and the first dimension is eqcell. But I want this dimension to be 360*180 so that it becomes  in the longitude*latitude dimension format. So my question is how to remap an equal-area map (41252*3) to an equal-angle map (360*180*3) in MATLAB. Could you please help me in this regard as I am very new to this kind of data and also in MATLAB. 

Thank you.

Ankan

[ISCCP-QA]

The process for mapping from equal area (41252) to equal angle (360,180) is described in the netCDF file (accessed using the netCDF ncdump utility. 

Alternatively, you could access the ISCCP Basic data, which contains the remapped equal angle data. See our website:

https://www.ncdc.noaa.gov/isccp/isccp-data-access/isccp-basic-data

Hope this helps.-

-Ken