Chart of 10° by 10° geographic areas 

 (Marsden Squares) within which were 

 collected data and information reported 

 in this publication and received by NOAA 

 Environmental Data Service. Note: Data 

 and NAMDI/ROSCOP forms are not 

 necessarily received at the same time. 



926 I 925 I 924 I 923 I 922 | 921 I 9^0 ^ 918 917 



'»' ■«' I'O' «)• im' CO' 1*C' iW i)0" 1^' 



54 



55 



