NOS Survey F00431 - HYD93 Format Header

  Surv Id Format Ngdc Id   Params Create Date Source Institution Seq
4 F00431 HYD93 03F12222   SF 19980730 National Ocean Survey, N.O.A.A. 01
Country Platform Name Plat Type Chief Hydrographer(s) Seq
U.S.A. Field/Shore Party 1SHIP J.A. ILLG 02
Project Type of Survey Strt Yr End Yr Scale of Survey Seq
OPR-G354 Hydro Field Examination 1997 1997 10000 03
Area (General) of Survey Area (Specific) of Survey Seq
PORT ROYAL SOUND HILTON HEAD TO BEAUFORT 04
Quality of Survey Description Processing Status Description Seq
ADEQUATE BASIC SURVEY   05
Position Determination Seq
NAVSTAR GPS 06
Code Horizontal Datum of Records Code Original Horizontal Datum Seq
NOS31 North American Datum of 1983 NOS31 North American Datum of 1983 07
code Vertical Datum tide Original Sounding Units Seq
04 Mean Lower Low Water 2.2 meters and tenths 08
Sounding Method Seq
Digital Echo Sounder w/ Graphical Record assumed 09
c Sound Velocity Correction Seq
1 Corrected for actual sound velocity 10
Data Processing Methodology Seq
Digital data processed at NOS Marine Center: HPS 11
Format of Data Records Top Lat Bottom Lat Left Lon Right Lon Seq
SURV,LAT,LON,VAL,TYP,CCODE(A8,F9.6,F10.6,F6.1,I1,I3) +32.44 +32.23 -80.80 -80.64 12
Additional Documentation
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Note: You can find the comnplete HYD93 Format Specification, including all code descriptions, at www.ngdc.noaa.gov/mgg/dat/geodas/docs/hyd93.htm