Report for H12791

Locality:	Approaches to Atchafalaya Bay, LA
Sublocality:	22 NM S of Point Au Fer
State(s) or Region(s):	Louisiana

Start Date:	2015-09-06
End Date:	2016-03-26

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 H12791

Visit the full NCEI Bathymetry Viewer.

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.
H12791_DR.pdf	17.68MB	The document may be read using a free Adobe Reader.
H12791_DR.xml	63.7KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H12791 View / Download H12791.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

Bathymetric Attributed Grid (BAG) Data
Survey products may use different units, datums or projections than the associated survey. Please consult product-specific metadata for additional details.
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.
H12791_MB_1m_MLLW_1of1.bag	231.88MB
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. Please check the associated metadata to confirm the correct datums. The data file format is : SurveyID, Long, Lat, Depth.
H12791		XYZ format.

Images

GeoImagePDF
H12791_GeoImage.pdf	52.49MB	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
H12791_SSSAB_1m_455kHz_1of2.tif	219.47MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12791_SSSAB_1m_455kHz_2of2.tif	205.54MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.

Bottom Samples and Tide Documents

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H12791 in IMLGS (pre-1989 samples)		Search NOAA/NOS seabed samples submitted to IMLGS through NMNH (pre-1989). Modern survey bottom samples are not currently viewable on a map service.
NOAA/NOS bottom sample document in PDF or ASC format
H12791_BottomSamples.ascii	1.0KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12791_tn.pdf	444.9KB	This document may be read using a free Adobe Reader.
NOAA/NOS Tide Zone in PDF format
H12791_tz.pdf	444.9KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12791_ProjectSketch.jpg	204.9KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-K379-KR-15_DAPR.pdf	1.14MB	This document may be read using a free Adobe Reader.
Horizontal and Vertical Control Report in PDF Format
OPR-K379-KR-15_HVCR.pdf	2.30MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality

Sublocality

State or Region

Approaches to Atchafalaya Bay, LA

22 NM S of Point Au Fer

Louisiana

Start Date	End Date	Approval Date
2015-09-06	2016-03-26	2016-04-28

Project Number	Project Name	Purpose
OPR-K379-KR-15

Source of Original Data and License Information

License Information
These data were produced under contract with NOAA and any potential copyright was assigned to NOAA. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). View the license deed. View the legal code.

Reference System Information

Vertical Datum	Horizontal Datum	Projection	Scale
	North American Datum 1983	Projected UTM 15	40000

Survey Tide Stations

COOPS Tide Station ID

LAWMA, Amerada Pass, Louisiana

8764227

Affected Products

ENCs

RNCs

US4LA25M US4LA21M

11356 11351 11340

Survey Equipment

Vessel(s)

Chief(s) of Party

LAZ74232C313

JQN00027J708

1237094

Tara Levy

Manufacturer	Model	Instrument Type
Klein Marine Systems	System 5000 V2	SSS
Kongsberg Maritime	EM 3002	MBES
EdgeTech	4125	SSS
Kongsberg Maritime	EM 2040C	MBES
EdgeTech	4200P	SSS

Source Data at NCEI

Data in Archive

Size (in GB)

Date Archived

Data Types Surveyed

Raw and Processed

684.496

2017-06-28 18:43:22.0

BATHYMETRY