Report for H12636

Locality:	Approaches to Southwest Pass and Barataria Bay
Sublocality:	7NM East of Southwest Pass
State(s) or Region(s):	Louisiana

Start Date:	2014-07-16
End Date:	2015-04-30

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.

Visit the full NCEI Bathymetry Viewer.

Survey Products

NOAA/NOS Descriptive Report
Products listed in the project descriptive report (DR) may not reflect final products available through NCEI.
H12636_DR.pdf	32.08MB	The document may be read using a free Adobe Reader.
H12636_DR.xml	3.3KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H12636 View / Download H12636.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.

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.
H12636_MB_2m_MLLW_3of3.bag	124.51MB
H12636_MB_50cm_MLLW_1of3.bag	892.81MB
H12636_MB_1m_MLLW_2of3.bag	488.22MB
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.
H12636		XYZ format.

GeoImagePDF
H12636_GeoImage.pdf	10.61MB	NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format.
NOAA/NOS multibeam acoustic backscatter mosaic in TIFF format
The multibeam acoustic backscatter mosaic is readable with various applications such as the free CARIS Easy View, or ESRI ArcGIS geospatial visualization software.
H12636_MBAB_4m_400kHz_1of1.tiff	185.20MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H12636 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
H12636_BottomSamples.ascii	0.7KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12636_tn.pdf	350.2KB	This document may be read using a free Adobe Reader.

Project Sketch in JPEG format
H12636_ProjectSketch.jpg	175.9KB	Project sketch image with highlighted survey area.

Locality

Sublocality

State or Region

Approaches to Southwest Pass and Barataria Bay

7NM East of Southwest Pass

Louisiana

Start Date	End Date	Approval Date
2014-07-16	2015-04-30

Project Number	Project Name	Purpose

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.

Vertical Datum	Horizontal Datum	Projection	Scale
Mean Lower Low Water	North American Datum 1983	Projected UTM 16	40000

Vessel(s)

Chief(s) of Party

Tara Levy, C and C Technologies

Data in Archive

Size (in GB)

Date Archived

Data Types Surveyed

Raw and Processed

248.192

2016-03-18 13:24:42.0

BATHYMETRY