adding some comments
adding some comments

EarthSystemCoG/COG,sashakames/COG,sashakames/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,sashakames/COG,sashakames/COG,EarthSystemCoG/COG