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Report for H12253 Locality: Gulf of Mexico Sublocality: Southwest Ship Shoal State(s) or Region(s): Louisiana Start Date: 2010-12-10 End Date: 2011-12-30 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Downloads may take a long time, depending on file size and data transfer rates. Download All Products for H12253
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Survey Products

Descriptive Report and Metadata Documents

NOAA/NOS Descriptive Report
Products listed in the project descriptive report (DR) may not reflect final products available through NCEI.
H12253.pdf	4.61MB	The document may be read using a free Adobe Reader.
NOAA/NOS ISO metadata record
H12253 View / Download H12253.xml		Usually presented as an XML document, which captures the basic characteristics of HSMDB metadata verified from H10000 (1982) to the present as well as F00200 (1965) to the present.

Bathymetry

Survey products may use different units, datums or projections than the associated survey. Please consult product-specific metadata for additional details.
Bathymetric Attributed Grid (BAG) Data
The BAG format is a gridded, multi-dimensional bathymetric data file (see Open Navigation Surface). Readable with various applications such as the free CARIS Easy View, ESRI ArcGIS or open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty.
H12253_MB_1m_MLLW_4of4.bag	73.87MB
H12253_MB_50cm_MLLW_2of4.bag	5.79MB
H12253_MB_50cm_MLLW_3of4.bag	1.57MB
H12253_MB_1m_MLLW_1of4.bag	74.87MB
NOAA/NOS Sounding Data
Download data from the Point Store database via NEXT (NCEI Extract System). Point soundings are from the survey Smooth Sheet or of similar density. Depths in meters. Horizontal datum is (converted to) NAD83 if possible. Vertical datum is (converted to) Mean Lower Low Water if possible. Please check the associated metadata to confirm the correct datums. The data file format is : SurveyID, Long, Lat, Depth.
H12253		XYZ format.

Images

GeoImagePDF
H12253_GeoImage.pdf	10.01MB	NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format.
NOAA/NOS sidescan sonar mosaic in TIFF format
H12253_SSSAB_1m_455kHz_2of4.tiff	14.38MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12253_SSSAB_1m_455kHz_3of4.tiff	14.41MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12253_SSSAB_1m_455kHz_1of4.tiff	12.36MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12253_SSSAB_1m_455kHz_4of4.tiff	12.62MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12253_SSSAB_1m_455kHz_1of4.tfw	91 Bytes	NOAA/NOS TIFF sidescan sonar mosaic file. This world file geospatially registers the corresponding TIFF image.
H12253_SSSAB_1m_455kHz_3of4.tfw	91 Bytes	NOAA/NOS TIFF sidescan sonar mosaic file. This world file geospatially registers the corresponding TIFF image.
H12253_SSSAB_1m_455kHz_2of4.tfw	91 Bytes	NOAA/NOS TIFF sidescan sonar mosaic file. This world file geospatially registers the corresponding TIFF image.
H12253_SSSAB_1m_455kHz_4of4.tfw	91 Bytes	NOAA/NOS TIFF sidescan sonar mosaic file. This world file geospatially registers the corresponding TIFF image.

Bottom Samples and Tide Documents

NOAA/NOS Tide Note in PDF Format
H12253.tn.pdf	45.7KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
OPR-K354-KR-10(H12253).jpg	180.2KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-K354-KR-10_DAPR.pdf	5.29MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Gulf of Mexico Southwest Ship Shoal Louisiana

Start Date End Date Approval Date 2010-12-10 2011-12-30 2012-12-21

Project Number Project Name Purpose OPR-K354-KR-10 Louisiana Coast, Louisiana Update Nautical Chart(s)

Source of Original Data

Link to Original Data Data Source

Reference System Information

Vertical Datum Horizontal Datum Projection Scale Mean Lower Low Water North American Datum 1983 Projected UTM 15 40000

Tide Note Tide Zones Survey Tide Stations COOPS Tide Station ID Port Fourchon, Louisiana 8762075

Affected Products

ENCs RNCs 411 11357 11356 11352 11340 1116A

Junction Surveys H12255 H12252 H12250

Survey Equipment

Vessel(s) Chief(s) of Party M/V INEZ MCCALL Tara Levy Scott Croft

Manufacturer Model Instrument Type Seabird-Seacat SBE 19 CTD Profiler Conductivity Temperature and Depth Simrad EM3002 MBES Odom Echotrac DF3100 MKII Single Beam Echo Sounder Klein 5000 Sidescan Sonar - towfish CNAV 2050 DGPS Receiver Satellite DGPS Applanix TSS POS/MV 320 GPS Receiver Satellite GPS

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 142.858 2013-01-14 SIDE SCAN, BATHYMETRY