282 



INDEX 



Section No. 



Temperature (s) (sea water) (continued) 

 observations 



at standard depths 3-116 



by bathythermogrraph . 



corrections to 



distribution of 



Template, projection, use 



Terminology, landmarks for charts 

 Thermometer (s) deep sea 



accuracy 



care of 



reversing 

 protected 



.-3-114, 3-115 



3-120 



&-114 



5-7 



7-21 



unprotected 



3-117 

 3-119 



3-117 

 3-118 

 3-121 



use with Nansen Bottle- 

 use with Tanner-Sigrsbee reversing 



frame 3-123 



Three-point fix (see Sextant fix) 



Tidal datums 1-45,5-102,6-25 16, 



Tide(s) 



corrections (see Corrections to 

 soundings) 



cnrve(s) . 5-102 



gage(s), automatic 3-142 



discontinuing 2-51 



hourly heights to be 

 tabulated 



transmitted to Washington 



OflSce 



stations 



general plan for — 



instructions for 



establishment 



-1-46, 3-143 

 -2-52, 5-102 

 2-50 



2-9, 2-49 



selection of alternate site 1-46 



level records, transmittal 2-51 



report 2-52, 3-143 



secondary 



period of operation.. 



.1-46, 2-49 

 2-50 



simultaneous operation of 



adjacent — 



standard 



zones 



2-50 



1-46, 2-50 



5-102 



Time, Standard to be used in records 5-95 

 Title sheet, 



hydrographic survey 6-77 



inserted in descriptive report 7-2 



Topographic details 



agn^ement on topographic and 



smooth sheets ^ 6-89 



inking of data on boat sheet 5-14 



oflFshore boat sheet requirements 5-14 



transfer to boat sheet- 

 transfer to smooth sheet- 



verification by hydrographer_ 

 verification on smooth sheet- 

 Topographic station (s) 



accuracy of location 



marking of. 



-1-22, 5-14 

 6-26 

 5-67 

 6-89 



recoverable, description of 

 (Form 524) 



4-21 

 4-24 



4-25 



Page 



93 

 92,93 



96 

 181 

 128 

 250 



95 

 96 



95 

 96 

 97 



98 



174, 207 



174 



109 



38 



171 

 226 



location to be noted 



in sounding record 5-98 



on smooth sheet 6-71 



height of, 



correcting soundings for — -1-39, 5-102 13, 174 

 note 



descriptive report requirements 7-6 244 



verification in Washington Office 7-13 245 



predicted 



curves furnished from 



Washington Oflice 2-54 39 



from Tide Tables 2-53, 5-63 39, 153 



records. 



16, 110 



39, 174 



38 



22,38 



16 



38 



39, 110 



16,38 



38 



38 



16,38 



174 



166 



228 

 241 



230 

 134 

 134 

 7,134 

 208 

 155 

 230 



118 

 118 



119 



Section No. Page 



Topographic station(s) (continued) 



theodolite locations of 4-7 114 



transfer to smooth sheets 6-21 206 



Topographic surveys 



by photogrammetric methods 4-9 114 



by planetable 4-9 114 



for nautical charts 4-9 114 



project instruction 2-7 22 



Topography (see also Topographic 



surveys) 4r-9 114 



Training of personnel 2-18 25 



Transducer (s) 

 acoustic elements 



electrostatic 3-99 84 



magnetostriction 3-99 84 



attenuation of acoustic signals 3-101 85 



Basic principles of echo sounder — 3-96 83 



beam width, general discussion of 3-100 85 



EDO-185 (AN-UQN) 3-105 87 



EDO-255 3-104 86 



808 Fathometer 



general 3-103 86 



used in place of bar check 3-109 89 



excitation 3-99 84 



frequency versus depth 3-102 86 



effect of slopes 3-102 86 



high frequency instruments 3-106 87 



installation (see also transducers 



for specific instrument) 3-108 88 



maintenance and care of 3-107 87 



measurement for draft of 5-106 176 



sonic frequencies 3-97 84 



stabilized 3-100 85 



supersonic frequencies 3-98 84 



Transmitting letter (Form 413), 



use of 7-24 253 



Traverse 



control 4-2 112 



planetable 4-18 117 



Tellurometer 4-2 112 



Triang^ulation 



classification 4-1, 4-7 112, 114 



classified as topographic stations . 4-7 114 

 descriptions of intersection stations 



(Form 525b) 4-5 113 



description of stations (Form 525) 4-5 113 



established by other agencies 4-6 113 



connections with 4-6 113 



general requirements 1-15 5 



marking of stations 4-5 113 



reconnaissance, use of photographs 4-8 114 

 Recovery Note, Triangulation 



Station (Form 526) 4-4 112 



recovery of old stations, 



verification of 4-4 112 



V 



Vegetation, marine 



interpretation on 



fathograms 5-121,5-122 188,189 



limits to be shown on smooth sheet 6—40 212 



supplement sounding:s in 



areas of 1-35, 5-122 12, 189 



symbols for (Figrure 79) 6-40 212 



Velocimeter, description and use 3-135 106 



Velocity calibration of echo sounding 



instruments 1-36 12 



Velocity of sound (in sea water) 



accuracy requirements for echo 



sounding 1-36 12 



Actual— 1-36, 5-114 12. 181 



Assumed— 1-36,5-114 12,181 



