ISCCP C2 README 
  
The ISCCP C2 data were originally archived on 6250 tape with a year of data on a 
tape.  The granule layout described here is different from the original structure
on tape.  A year of data has been divided into 12 granules (1 granule per month).
Each granule contains nine files (00, 03, 06, 09, 12, 15, 18, 21 and ALL GMT).
The metadata that is included with each granule describes the data for the
entire year.  For example, granule c2_8503 will include metadata that describes
all the data for 1985.  This relates to the original structure of the data on tape.
The following is a description of the granule naming conventions used for both tape 
media and FTP.


Granule Layout:

  
                  Tape Media                                 FTP Access


 File 1      Volume ID  (3 records)                        1_c2_yyyy_volid
                                                          
                                                          

 File 2      Table of Contents (2 record)                  2_c2_yyyy_toc



 File 3      READ program  (16 records)                    3_c2_readprg.f
 
 

 File 4      Variable Conversion Table  (3  records)       4_c2_tables
 
 
 
 File 5      Ancillary Data table  (116 records)           5_c2_yyyy_ancillary



 File 6      CLOUD DATA (67 records/file)                 
 through
 File 113                                              

	     file 6   is Month 1,  GMT 00                  c2_yymm/c2_yymm_3hr_00*
	     
	     file 8   is Month 1,  GMT 21                  c2_yymm/c2_yymm_3hr_21*
	     
	     file 9   is Month 1,  GMT ALL                 c2_yymm/c2_yymm_monavgs*
                 . 
                 . 
                 . 
                 . 
	     file 105   is Month 12,  GMT 00               c2_yymm/c2_yymm_3hr_00*
	   
	     file 112   is Month 12,  GMT 21               c2_yymm/c2_yymm_3hr_21*
	     
	     file 113   is Month 12,  GMT ALL              c2_yymm/c2_yymm_monavgs*
                      
	     
* granule_name/file_name


NOTE:  Year 1983 includes data from July through December only and Year 1991 
       includes data for January through June only.