16 



MANUAL OF MARINE METEOROLOGICAL OBSERVATIONS 



Code Table 2 

 Symbol Q. - Octant of the Globe 



2400. LATITUDE (L^L^L^) 



d a. d 



2401. Enter the latitude of the ship, at the time of the observation, in 

 degrees and tenths without decimal point in column 4. The tenths are ob- 

 tained by dividing the minutes of arc by 6 and neglecting the remainder. If 

 the group contains only two figures, add a zero as the first figure, e.g., 9.5° 

 is entered as 095. 



Examples: 



(a) 48°20'=48.3° (i.e 

 entered as 483. 



(b) 7°11' is entered as 071. 



20-r6 = 3, remainder neglected), which is 



2500. LONGITUDE (LoLqLo) 



2501. Enter the longitude of the ship in degrees and tenths in column 

 5. The tenths of longitude are obtained in the same manner as tenths of lat- 

 itude (J2401). If the longitude is 100° or more, the first figure (1) will be 

 omitted. The octant of the globe will show that the hundreds figure has been 

 omitted. 



Example: 126°25' longitude is entered as 264. 



2600. GREENWICH CIVIL TIME (GG) 



2601. Enter the time of the observation to the nearest hour (GCT) 

 in column 6. The time should be entered to two figures in accordance with 



