NOS Survey H03003 - HYD93 Format Header

  Surv Id Format Ngdc Id   Params Create Date Source Institution Seq
4 H03003 HYD93 03NG1112   SF 19921231 National Ocean Survey, N.O.A.A. 01
Country Platform Name Plat Type Chief Hydrographer(s) Seq
U.S.A. Unknown Ship 1SHIP O.W. FERGUSON 02
Project Type of Survey Strt Yr End Yr Scale of Survey Seq
    1909 1909 10,000 03
Area (General) of Survey Area (Specific) of Survey Seq
RAPPAHANNOCK RIVER URBANA TO LA GRANGE CREEK 04
Quality of Survey Description Processing Status Description Seq
    05
Position Determination Seq
  06
Code Horizontal Datum of Records Code Original Horizontal Datum Seq
NOSXX Unknown NOSXX Unknown 07
code Vertical Datum tide Original Sounding Units Seq
02 Mean Low Water   feet 08
Sounding Method Seq
Lead Line assumed 09
c Sound Velocity Correction Seq
5 Non-acoustic depth measurement 10
Data Processing Methodology Seq
Smooth sheets digitized for N.O.S. by National Geophysical Data Center 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) +37.70 +37.61 -76.59 -76.53 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