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Report for H12591 Locality: Shumagin Islands, AK Sublocality: 4 NM North of Bird Island State(s) or Region(s): Alaska Start Date: 2013-07-16 End Date: 2013-09-10 These data are not to be used for navigation. For navigation please refer to NOS Nautical Charts. Download times vary depending on file size and data transfer rates. Download All Products for H12591
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Survey Products

Descriptive Report and Metadata Documents

NOAA/NOS Descriptive Report & Survey Metadata
Products listed in the project descriptive report (DR) may not reflect final products available through NCEI.
H12591_DR.pdf	5.35MB	The document may be read using a free Adobe Reader.
H12591_DR.xml	48.7KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO Metadata Record
H12591 View / Download H12591.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.
Variable Resolution Bathymetric Attributed Grid
H12591_MB_VR_MLLW_1of1.bag	71.33MB	The Variable Resolution BAG format is a gridded, multi-dimensional, multi-resolution bathymetric data file (see Open Navigation Surface). Currently supported with open source GDAL. The BAGXYZ files are ascii representations of the BAG data in XYZ format, but do not include uncertainty.
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.
H12591		XYZ format.

Images

GeoImagePDF
H12591_GeoImage.pdf	24.48MB	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.
H12591_MBAB_4m_S221_100kHz_3of3.tiff	8.48MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12591_MBAB_1m_2802_400kHz_2of3.tiff	2.86MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12591_MBAB_3m_2801_400kHz_1of3.tiff	321.0KB	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 H12591 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
H12591_BottomSamples.ascii	0.7KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12591_tn.pdf	43.4KB	This document may be read using a free Adobe Reader.
NOAA/NOS Tide Zone in PDF format
H12591_tz.pdf	421.4KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12591_ProjectSketch.jpg	56.3KB	Project sketch image with highlighted survey area.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Shumagin Islands, AK 4 NM North of Bird Island Alaska

Start Date End Date Approval Date 2013-07-16 2013-09-10 2013-12-06

Project Number Project Name Purpose OPR-P183-RA-13 Shumagin Islands, AK Navigable Area

Source of Original Data and License Information

License Information These data were produced by NOAA and are in the public domain within the United States. 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 4 40000

Affected Products

ENCs RNCs US3AK50M 16540

Survey Equipment

Vessel(s) Chief(s) of Party RA-5 RA-4 NOAA Ship RAINIER

Manufacturer Model Instrument Type Kongsberg Maritime EM 710 MBES Reson 7125 MBES

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Raw and Processed 78.151 2015-04-22 13:15:32.0 BACKSCATTER, BATHYMETRY