Illustrations 



Figure Page 



1 A. Trackline and station array 13 



2A.-5A. Dynamic topography charts, Grand Banks of 



Newfoundland 14 



6A. T-S plot of water masses, vicinity of the Grand Banks of 



Newfoundland 18 



7 A. T-S plot of Labrador Current stations 19 



8A. Dynamic heights along section U 19 



9 A. Temperature and salinity distribution along section U_ _ 20 

 lOA. Temperature and salinity distribution in trough area of 



section U 21 



llA. Velocity distribution along section U 22 



12A. T-S plot of stations 9259 and 9388 23 



13A. Mean T-S plots of stations located on the Grand Banks. 24 

 14A. Volume flow variation and Grand Banks salinity change 



for section U 24 



15 A. -23 A. Isotherm contours on various sigma-t surfaces 25 



24A.-26A. Isotherm contours at selected depths 34 



27A.-28A. Vertical distribution of salinity along the core of 



the Labrador Current 37 



Tables 



I A. Volume and heat flow data for section U 38 



IIA. Annual dynamic heights and volume flow for section U, 



1949-64 39 



Iceberg Deterioration 

 Illustrations 



Figure Page 



1C.-5C. Hourly meteorological observations 53 



6C. Blackbody heat radiation at various temperatures 55 



7C. Plan view of iceberg showing rotation during photo- 

 graphic sequence 56 



SC.-9C. Sample round of iceberg photographs 57 



lOC. Dye spots on iceberg 59 



lie. Example of measurement of iceberg from photograph. __ 60 



12C. Example of topographic iceberg map construction 61 



13C. Topographic map of iceberg, at beginning and end of 



study 62 



14C. Photographs showing wastage during the study period. 63 



Tables 



IC. Estinuited deterioration time for various sized icebergs.. 64 



