Surv Id | Format | Ngdc Id | Params | Create Date | Source Institution | Seq | ||
4 | F00362 | HYD93 | 03321024 | SF | 19930507 | National Ocean Survey, N.O.A.A. | 01 |
Country | Platform Name | Plat Type | Chief Hydrographer(s) | Seq |
U.S.A. | Heck | 1SHIP | J.W. BLACKWELL | 02 |
Project | Type of Survey | Strt Yr | End Yr | Scale of Survey | Seq |
OPR-K940 | Side scan sonar survey | 1992 | 1992 | 20000 | 03 |
Area (General) of Survey | Area (Specific) of Survey | Seq |
GULF OF MEXICO | 28NM SOUTH OF BELLE PASS | 04 |
Quality of Survey Description | Processing Status Description | Seq |
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 | .33 | meters | 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: HARRIS | 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) | +28.66 | +28.62 | -90.25 | -90.21 | 12 |
Additional Documentation |
Seq |
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14 | |
15 | |
16 | |
17 | |
18 | |
19 | |
20 | |
21 | |
22 | |
23 | |
24 |
Note: You can find the comnplete HYD93 Format Specification, including all code descriptions, at www.ngdc.noaa.gov/mgg/dat/geodas/docs/hyd93.htm