Surv Id | Format | Ngdc Id | Params | Create Date | Source Institution | Seq | ||
4 | B00265 | HYD93 | 03082003 | S | 1992031 | National Ocean Survey, N.O.A.A. | 01 |
Country | Platform Name | Plat Type | Chief Hydrographer(s) | Seq |
U.S.A. | Whiting | 1SHIP | CDR RICHARD P. FLOYD, NOAA | 02 |
Project | Type of Survey | Strt Yr | End Yr | Scale of Survey | Seq |
K523-WH-91 | EEZ Bathymetric Survey | 1991 | 1991 | 50,000 | 03 |
Area (General) of Survey | Area (Specific) of Survey | Seq |
TEXAS | 55 NM ENE OF PORT ISABEL, TX | 04 |
Quality of Survey Description | Processing Status Description | Seq |
05 |
Position Determination | Seq |
STARFIX (JOHN E. CHANCE & ASSOC) | 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 |
04 | Mean Lower Low Water | meters | 08 |
Sounding Method | Seq |
HYDROCHART II GENERAL INSTRUMENTS 001 17 Beams 36 KHZ | 09 |
c | Sound Velocity Correction | Seq |
1 | Corrected, Vertical-cast Sound Velocity Table 91113-0217.VEL;1 | 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) | +26.51 | +25.99 | -96.37 | -95.98 | 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 |
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