Report for H12939

Locality:	Unalaska Island, AK
Sublocality:	Vicinity of Eider Point and Wide Bay
State(s) or Region(s):	Alaska

Start Date:	2016-08-12
End Date:	2016-08-20

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 H12939

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.
H12939_DR.pdf	12.31MB	The document may be read using a free Adobe Reader.
H12939_DR.xml	52.0KB	Descriptive Report in XML format. May be opened using a web browser or text viewer.
NOAA/NOS ISO metadata record
H12939 View / Download H12939.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.
H12939_MB_4m_MLLW_3of5.bag	2.78MB
H12939_MB_2m_MLLW_2of5.bag	4.78MB
H12939_MB_1m_MLLW_1of5.bag	7.83MB
H12939_MB_16m_MLLW_Combined.bag	1.09MB
H12939_MB_16m_MLLW_5of5.bag	281.8KB
H12939_MB_8m_MLLW_4of5.bag	2.50MB
Ellipsoid Referenced BAG Files
Ellipsoid referenced Bag files have a vertical datum that may differ materially from the charted datum. Please refer to the file level metadata to ensure proper display.
H12939_MB_4m_Ellipsoid_3of5.bag	2.81MB
H12939_MB_16m_Ellipsoid_5of5.bag	282.7KB
H12939_MB_8m_Ellipsoid_4of5.bag	2.50MB
H12939_MB_2m_Ellipsoid_2of5.bag	4.82MB
H12939_MB_16m_Ellipsoid_Combined.bag	1.10MB
H12939_MB_1m_Ellipsoid_1of5.bag	7.92MB
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. 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.
H12939		XYZ format.

Images

GeoImagePDF
H12939_GeoImage.pdf	33.19MB	NOAA/NOS Layered GeoSpatial Image PDF File. Created by NOS to include chart and survey layers in a georeferenced pdf format.

Bottom Samples and Tide Documents

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H12939 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
H12939_BottomSamples.ascii	484 Bytes	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12939_tn.pdf	81.5KB	This document may be read using a free Adobe Reader.
NOAA/NOS Tide Zone in PDF format
H12939_tz.pdf	103.3KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12939_ProjectSketch.jpg	151.2KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-Q328-FA-16_DAPR.pdf	28.04MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality

Sublocality

State or Region

Unalaska Island, AK

Vicinity of Eider Point and Wide Bay

Alaska

Start Date	End Date	Approval Date
2016-08-12	2016-08-20	2016-12-01

Project Number	Project Name	Purpose
OPR-Q328-FA-16

Source of Original Data

Link to Original Data	Data Source

Reference System Information

Vertical Datum	Horizontal Datum	Projection	Scale
Mean Lower Low Water	World Geodetic System (WGS) 1984	Projected UTM 3	20000

Tide Note

Tide Zones

Survey Tide Stations

COOPS Tide Station ID

Affected Products

ENCs

RNCs

US5AK6CM

16528

Junction Surveys

Survey Equipment

Vessel(s)

Chief(s) of Party

2808 (FA)

2806 (FA)

2805 (FA)

CDR Mark Van Waes, NOAA

Manufacturer	Model	Instrument Type
RESON	7125	MBES

Source Data at NCEI

Data in Archive

Size (in GB)

Date Archived

Data Types Surveyed

Raw and Processed

25.638

2020-01-06 11:32:27.0

BACKSCATTER,

BATHYMETRY