TABLE OF CONTENTS 



I. 



IIWRODUCTION 



II. METHOD OF COMPILATION 



A. Frost Degree Days 



B. Ice Growth . . . . 



III. HARBOR BREAKUP AND FREEZEUP DATES 



IV. SUMMARY 



Page 



1 



1 



1 

 1 



1 

 2 



TABLES 



1. Location Identifier for Frost Degree Day and Ice Growth Curves 2 



2. Location Identifier for Harbor Breakup and Freezeup Dates • • h 



FIGURES 



1. Location Map for Frost Degree Day and Ice Growth and Disintegra- 

 tion Curves 3 



2. Location Map for Harbor Breakup and Freezeup Dates 5 



3A through 60A - Frost Degree Day Curves 8 - 122 



3B through 60B - Theoretical Ice Growth and Disintegration Curves . 9 - 123 



Figure 



Page 



3. 



Barter Island 



8-9 



k. 



Point Barrow 



10-11 



5. 



Wainwright 



12-13 



6. 



Point Lay 



iit-15 



7. 



Point Hope 



16-17 



b. 



Kotzebue 



18-19 



9. 



Wr angel Island 



20-21 



10. 



yiys Shmidta 



22-23 



11. 



l^iys Vankarem 



2U-25 



12. 



Mys Dezhneva 



26-27 



13. 



Uelen 



28-29 



Ik. 



Mys Chaplina 



30-31 



15. 



Wales 



32-33 



16. 



Nome 



3^^-35 



17. 



Gambell 



36-37 



18. 



Niinivak 



38-39 



19. 



Bethel 



to-In 



20. 



Naknek 



li2-i^3 



21. 



St. Paul Island 



kk-k3 



22. 



Alert 



k6-ki 



23. 



Thule 



k&-k9 



2k. 



Clyde River 



50-51 



25. 



Padloping 



52-53 



26. 



Frobisher 



5^^-55 



27. 



Resolution Island 



56-57 



28. 



Hope dale 



58-59 



29. 



Goose Bay 



60-61 



30. 



Cartwright 



62-63 



31. 



Belle Isle 



6k-63 



Figure 



32 . Upernavik 



33. Iftnanak 

 3k. Godhavn 



35. Jakobshavn 



36. Sondre Strom 



37. Godthaab 



38. Ivigtut 



39. Nanortalik 

 ko. Angmagssalik 

 Ul. Nord 



k2 . Eureka 



43. Isachsen 



kk. Mould Bay 



^4-5. Resolute 



k6. Dundas Harbor 



U7. Arctic Bay 



k8. Pond Inlet 



k9. Herschel Island 



50. Aklavik 



51 . Coppermine 



52. Cambridge Bay 



53. Lake Harbour 



5^. Nottingham Island 



55. Coral Harbor 



56. Chesterfield 



57. Churchill 



58. Port Harrison 



59. Cape Hopes Advance 



60. Fort Chimo 



Page 

 66-67 

 68-69 

 70-71 

 72-73 

 7^-75 

 76-77 

 78-79 

 80-81 

 82-83 

 84-85 

 86-87 

 88-89 

 90-91 

 92-93 

 94-95 

 96-97 

 98-99 



100-101 



102-103 

 104-105 

 106-107 



108-109 

 110-111 



112-113 

 114-115 

 116-117 

 118-119 

 120-121 



122-123 



