9612 



HYDROGRAPHIC MANUAL 

 Table 34. — Pressure corrections. — Continued 



Page 876 



Depths in fathoms 



1,000. 

 1,050. 

 1,100. 

 1,150. 

 1,200. 

 1,250. 



1,300. 

 1,350. 

 1,400. 

 1,450. 

 1,500- 



1,550. 

 1,600. 

 1,650. 

 1,700- 

 1,750. 



1,800- 

 1,850- 

 1,900- 

 1,950- 

 2,000- 



2,100- 

 2,200- 

 2,300. 

 2,400. 

 2,500. 



2,600. 

 2,700. 

 2,800. 

 2,900. 

 3,000. 



3,100. 

 3,200. 

 3,300. 

 3,400. 

 3,500. 



3,600. 

 3,700- 

 3,800. 

 3,900. 

 4,000. 



Temperature °C. at depth 



34. 9 

 36. 5 



38. 2 



39. 8 

 41. 5 



43. 2 



44. 8 

 46. 5 



48. 1 



49. 8 



51.4 



53. 1 



54. 7 

 56. 4 

 58.0 



59. 7 



61. 3 



62. 9 

 64. 6 

 66. 2 



69. 5 

 72. 8 

 76. 1 

 79. 3 

 82. 5 



85. 8 

 89. 1 

 92. 3 

 95. 6 

 98. 9 



102. 1 

 105. 3 

 108. 5 

 111. 7 

 114. 9 



118. 1 

 121. 3 

 124. 5 

 127. 7 

 130. 9 



34. 9 

 36. 5 



38. 2 



39. 8 

 41. 5 



43. 2 



44. 8 

 46. 5 



48. 1 



49. 8 



51.4 



53. 1 



54. 7 

 56.4 

 58.0 



59. 7 



61. 3 



62. 9 

 64. 6 

 66. 2 



69.4 

 72. 7 

 76.0 

 79.2 



82. 4 



85.7 

 89.0 

 92. 2 

 95. 5 

 98. 7 



101. 9 

 105. 2 

 108. 4 

 111. 6 



114. 7 



117. 9 

 121. 1 

 124. 3 

 127 5 

 130. 6 



34. 9 



36. 

 38. 

 39. 

 41. 



43. 1 



44. 8 

 46. 5 



48. 1 



49. 8 



51.4 



53. 1 



54. 7 

 56. 4 

 58.0 



59. 6 



61. 2 



62. 8 

 64. 5 

 66. 1 



69. 



72. 

 75. 



79. 2 



82. 4 



85. 

 88. 

 92. 

 95. 



98. 6 



101. 8 

 105. 

 108. 2 

 111. 3 

 114. 5 



117. 7 

 120. 8 

 124. 

 127. 2 

 130. 3 



34. 9 

 36. 5 



38. 2 



39. 8 

 41. 5 



43. 1 



44. 7 

 46.4 

 48.0 

 49. 7 



51. 3 



53. 



54. 6 



56. 3 



57. 9 



59. 6 



61. 2 



62. 8 

 64.4 

 66. 



69.3 

 72. 6 

 75. 8 

 79. 1 

 82. 3 



85. 6 

 88. 8 

 92.0 

 95. 3 

 98. 5 



101. 6 

 104. 8 

 108. 

 111. 1 

 114. 3 



117.4 

 120. 6 

 123. 8 

 127. 

 130. 1 



34. 9 

 36. 5 



38. 2 



39. 8 

 41. 5 



43. 1 



44. 7 

 46.4 

 48.0 

 49. 7 



51. 3 

 53.0 

 54. 6 

 56. 3 

 57.9 



59.5 



61. 1 



62. 7 

 64.4 

 66. 



69. 2 



72. 5 

 75. 7 

 79.0 

 82. 1 



85. 4 

 88. 7 

 91. 9 

 95. 1 

 98. 3 



101.4 

 104. 6 

 107.8 

 110. 9 

 114. 



117.2 

 120.3 

 123. 5 

 126. 7 

 129. 8 



33. 1 



34. 8 

 36. 4 



38. 2 



39. 8 

 41. 5 



43. 1 



44. 7 



46. 3 



47. 9 

 49. 6 



51. 2 



52. 9 

 54. 5 



56. 2 



57. 8 



59.4 



61. 



62. 6 



64. 3 



65. 9 



9612. Velocity From Diagrams 



The diagrams (figs, 187 and 188) may be used instead of the tables in 9611 to find 

 velocities. These diagrams are based on the values in the tables but, owing to their 

 small scale, the velocities cannot be derived with quite the accuracy that the tables will 

 give. But if the values are interpolated carefully from the diagrams the resulting 

 velocities should be sufficiently accurate for use in computing echo-sounding corrections. 



One diagram is for velocities for the range of temperatures from 0° to 15° C. and 



