INDEX 



Page 899 



Reference 

 Crosslines (sounding lines)- Continued. No. 

 run under different conditions from syste- 

 matic lines 357 



Where required 357 



Cross references in Coast Pilots 916 



Cruising radius of C. and G. S. survey ships. . 41 



Cupola, definition 8534C 



Current (s) 



Allowance for .-. 3375 



on dead-reckoning loops... 3371 



Anchoring and weighing buoys in 285 



Anchors of moored buoys alined with ... 2851 



Coast Pilot requirements 916 



Descriptive Report requirements 8420 



direction gaged from survey buoys 285 



EfTect on log calibration 4454 



Effect on sound wave 6354 



Effect on velocity of sound 6354 



Force exerted on buoy anchor cables 2832 



Handload sounding errors in 3421 



Handlead sounding in 3141B 



in vicinity of shoals 3464 



meter, radio (see Radio current meter) 



meters, cleaning and oiling 4313 



observations, instructions for 1217 



observations, required when locating survey 



buoys 2512 



Ocean study of... 478 



records, not sent to Processing OflBces 9231 



Sounding in 3464 



stations, Descriptive Report requirements... 842Z) 



stations, smooth-sheet requirements- 7865 



Surface , effect on wire soundings 3422 



surveys, length of series of observations 157 



Taut-wire measurements, record of re- 

 quired 4466 



variation affecting position of soundings 3464 



velocity, unit of measurement used 124(ft) 



Weighing buoys in 285 



Wind-induced 



described in Chapter 1, Coast Pilot.. 916 



Directions 285 



Rules for directions and velocities 3375 



Curves, depth {see Depth curves) 



Customhouses listed in Coast Pilot 916 



Cuts, sextant 



Accuracy 769 



combined with angles to locate a buoy 2515 



Definition 7415 



Identifying during smooth-sheet plot- 

 ting 769 



Index of required 7415 



indexed in Sounding Records 819d 



penciled on boat sheet 3244 



Plotting control stations from 7415 



Plotting on smooth sheet 769 



recorded in Sounding Records 8321 



Recording , method 248 



{24^2 

 2514 

 Cyclometer wheel, taut-wire apparatus cal- 

 ibrating 4467 



D 



Danforth anchors, superiority of 2831 



Danger of surveying shoals 361 



Dangerous areas, unsoundable, data required.. 3244 

 Dangerous waters, keeping a lookout when 



surveying 3465 



Dangers to navigation (see also Dangers to 

 navigation and shoals; Least depths; 

 Obstructions; and Shoals) 



Coast Pilot requirements. la\i^ 



Depths shown on smooth sheet to half feet... 7713(c) 



Descriptive Report requirements 842A^ 



discovered during survey 



Marking 8531 



Report by radio 172 



reported immediately 8522 



reported to whom. 8522 



Reporting , form of message 8522 



Temporary marking 2812 



Distances estimated from sounding lines 815(/) 



Floating , reporting 8522 



Floating to be reported to Coast Guard. 365 



form prior surveys to be verified 3234 



investigated from vessel in transit 172 



Precautions to be taken in vicinity of . . 1581 



removed by blasting or dredging, least depths 



to be verified 3523 



reported by Coast Pilot reviser 9133a 



reported by radio 159 



Jleported , jnvestigating , 3236 



Page 



275 

 275 

 836 

 311 

 803 



236 

 233 

 184 

 187 

 839 

 790 

 184 

 351 

 592 

 592 

 173 

 255 

 199 

 260 



332 

 13 



113 



417 

 845 

 265 

 788 

 744 

 256 

 42 



356 



266 



15 



>84 



840 

 185 

 236 



829 



714 

 116 



687 



714 

 687 

 770 

 209 

 687 

 714 

 779 

 109 

 105 

 115 



172 

 276 

 209 



267 



829 



838 

 715 



789 



799 

 57 

 797 

 797 

 797 

 164 

 766 

 797 

 282 

 207 

 56 

 43 



270 



814 



46 



207 



Reference 

 Dangers to navigation— Continued. No. 



reported immediately 912 



Sounding in vicinity of (Jf?^ 



1361 



Undiscovered , possibility of 31 



Wire-drag finds, showing on smooth sheet... 7866 



Dangers to navigation and shoals 36 



All in project area to be found 36 



Appearance of 3523 



Color of _ 3623 



Conditions under which best seen 3623 



Deletion from a publication 352 



disclosed by 



eddies 3623a 



fish and gulls... 3623c 



kelp 36236 



systematic survey 362I 



disclosed on air photographs 3$24 



discovered visually .V.V. 3623 



Existence disproved " 352 



f352 



Known to be verified -{3521 



T , (3522 



Lookout stationed as high as practicable 3623 



Proof that a discovered shoal is not a reloca- 

 tion of a known shoal 352 



reported locally ' 3522 



Sounding in vicinity of possible W 361 



Sources of evidence 352 



Danger zones 916 



Data, miscellaneous, included in Descriptive 



Report 8436 



Data, miscellaneous, in Descriptive Report 



text 842 1^ 



Datum(s) (sec ais') Geographic datum; Geodetic 

 datum; Sounding datum; and Verti- 

 cal datum) 



Nautical chart 1125 



note, verified by reviewer 9342e 



Day letter(s) 

 Assigning 1331| 



colors mW 



\8121 



Definition gi21 



Inking on smooth sheet 7681 



Size of 7681 



Day's work 

 Beginning of , Sounding Record require- 

 ments 813 



End of , Sounding Record requirements. 816 



First position, latitude and longitude re- 

 quired 815(a) 



Dead reckoning 337 



abstract on Form 722 {a\Vo 



Accuracy 3372 



adjusted graphically to bearings 3361 



f3377 

 adjustment. ^3378 



[765 



Bearings to distant object to strengthen . 3361 



Changing course in 3373 



Compass deviations to be known 3373 



Courses in 3373 



data in R. A. R. surveys 6812 



Definition 337 



Distances in 3374 



Errors in 337 



f3322 



in hydrographic surveying issP^'^^ 



[3371 



Length of unfixed allowed 3371(1) 



Logs, use in 3374 



loops, offshore 



Adjustment of closure... 7634 



Description. 3371 



Plotting and adjusting 7634 



Plotting 7652 



plots used in R. A. R 7634 



Analyzing R. A. R. positions by use of . 7637 



Compass rose, special, for plotting 7653 



Disposal of— .. . 7653 



Plotting 7653 



by log distances 7653 



by time 7653 



on smooth sheets {I5g 



using universal drafting machine 4851 



Position frequency in 3381 



Percise , description 3379 



Running survey 3941 



Sea effect on 3373 



809 

 43 

 276 

 191 

 744 

 275 

 275 

 278 

 278 

 278 



279 

 280 

 279 

 277 

 280 

 278 

 268 

 268 

 268 

 269 

 278 



278 

 276 

 277 

 829 



790 



5 

 856 



212 



758 

 212 

 759 

 758 

 712 

 712 



759 



767 



766 

 232 

 237 

 778 

 234 

 227 

 237 

 237 

 708 

 227 

 234 

 234 

 234 

 637 

 232 

 235 

 233 

 216 

 216 

 232 

 233 

 233 

 235 



705 

 233 

 705 

 709 

 705 

 707 

 710 

 710 

 710 

 710 

 710 

 708 

 708 

 433 

 238 

 237 

 309 

 235 



