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Report for H12657 Locality: Approaches to Mobile Bay Sublocality: 16NM South of Mobile Point State(s) or Region(s): Alabama Start Date: 2014-07-27 End Date: 2014-09-13 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 H12657
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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.
H12657_DR.pdf	4.66MB	The document may be read using a free Adobe Reader.
H12657_DR.xml	58.2KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H12657 View / Download H12657.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.
H12657_MB_2m_MLLW_1of1.bag	780.21MB
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.
H12657		XYZ format.

Images

GeoImagePDF
H12657_GeoImage.pdf	25.85MB	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
H12657_SSSAB_1m_500kHz_2of2.tiff	77.21MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H12657_SSSAB_1m_500kHz_1of2.tiff	79.54MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
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.
H12657_MBAB_2m_D582365_400kHz_1of1.tiff	27.43MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.

Bottom Samples and Tide Documents

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H12657 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
H12657_BottomSamples.ascii	0.9KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12657_tn.pdf	81.2KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12657_ProjectSketch.jpg	192.3KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-J312-KR-14_DAPR.pdf	0.94MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Approaches to Mobile Bay 16NM South of Mobile Point Alabama

Start Date End Date Approval Date 2014-07-27 2014-09-13 2015-02-27

Project Number Project Name Purpose OPR-J312-KR-14

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 Mean Lower Low Water North American Datum 1983 Projected UTM 16 40000

Survey Tide Stations COOPS Tide Station ID Pascagoula NOAA Lab, Mississippi 8741533

Affected Products

ENCs RNCs US4AL11M US3GC05M 11376 11360

Survey Equipment

Manufacturer Model Instrument Type RESON SeaBat 7125 SV MBES

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 362.914 2016-03-21 13:42:45.0 BACKSCATTER, BATHYMETRY