NOS Survey B00207 - HYD93 Format Header

  Surv Id Format Ngdc Id   Params Create Date Source Institution Seq
4 B00207 HYD93 03092041   S 1993011 National Ocean Survey, N.O.A.A. 01
Country Platform Name Plat Type Chief Hydrographer(s) Seq
U.S.A. Mt. Mitchell 1SHIP R.K.MATSUSHIGE 02
Project Type of Survey Strt Yr End Yr Scale of Survey Seq
K545-MI-89 EEZ Bathymetric Survey 1989 1989 50,000 03
Area (General) of Survey Area (Specific) of Survey Seq
LOUISIANNA 178 NM SOUTH OF ATCHAFALAYA BAY, LA 04
Quality of Survey Description Processing Status Description Seq
    05
Position Determination Seq
STARFIX 06
Code Horizontal Datum of Records Code Original Horizontal Datum Seq
NOS31 North American Datum 1983 NOS31 North American Datum 1983 07
code Vertical Datum tide Original Sounding Units Seq
02 Mean Low Water   meters 08
Sounding Method Seq
SEABEAM GENERAL INSTRUMENTS UNKNOWN 16 Beams 12 KHZ 09
c Sound Velocity Correction Seq
1 Corrected, Vertical-cast Sound Velocity Table 89314-1656.VEL 10
Data Processing Methodology Seq
NOS Pacific Hydro Section - standard SEABEAM processing 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) +26.17 +25.99 -92.01 -91.66 12
Additional Documentation
Seq
This data is a subset of SEABEAM file. 5 Beams of actual data were extracted 13
from each return. Sampling rate varies from 10 to 30 seconds along track. 14
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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