Great Lakes Surface Environmental Analysis (GLSEA) File Format and Period

YEAR           RESOLUTION       FORMAT          MASK_FILE           STORAGE     ICE_COVER           COMPOSITE_METHOD

1995-2003      512              dat (txt)       cwglsyrd_512.byt    DVD         no ice              new               
2003-2007      1024             dat (txt)       cwglsyrd_1024.byt   DVD         no ice              new   
2003-2007      1024 to 512      dat (txt)       gl_mask_512.byt     DVD         no ice              new   

1994-2003      512 from cwf     gif             cwglsyrd_512.byt    CD, DVD     ice since 1999      old
2004-2007      512 from hdf     gif             cwglsyrd_512.byt    CD, DVD     with ice            old
1992-2003      512              flc, qt (movie)                     CD, DVD     with ice            old
2004-2007      512              flc     (movie)                     CD, DVD     with ice            old

2008-2009      512 from hdf     gif             cwglsyrd_512.byt    online      no ice              old
2007-2009      1024             asc, dat, png   cwglsyrd_1024.byt   online      2007 no ice         new

2008-2009      1024             flc  (movie)                        online      with ice            new