LEGEND 



IDOE material received: 

 □ ROSCOP forms 

 O Data 



Chart of 10 by 10 geographic areas 

 (Marsden Squares) within which 

 were collected data and information 

 reported in this publication and 

 received by NOAA's Environmental 

 Data Service. Note: Data and 

 ROSCOP forms are seldom received 

 at the same time 



"M" lie" m' 



72 



73 



