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Report for H09423 Locality: Goose Island to Port Gravina Sublocality: KNOWLES HEAD State(s) or Region(s): Alaska Start Date: 1974-06-01 End Date: 1974-06-30 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. Download All Products for H09423
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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.
H09423.pdf	3.22MB	The document may be read using a free Adobe Reader.
NOAA/NOS ISO metadata record
H09423 View / Download H09423.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.
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.
H09423		XYZ format.
NOAA/NOS Sounding Data
Point Soundings from the survey Smooth Sheet in A93 format.
H09423.a93.gz	154.4KB	A93 format.
Survey Metadata Data
Metadata for the survey in H93 format.
H09423_h93.htm	13.8KB	H93 format.

Images

NOAA/NOS Smooth Sheet survey image
H09423B.tif.gz	269.49MB	The image may be viewed with a standard image viewer.
H09423B.jpg.gz	1.04MB	The image may be viewed with a standard image viewer.
H09423A.jpg.gz	1.12MB	The image may be viewed with a standard image viewer.
H09423A.tif.gz	276.22MB	The image may be viewed with a standard image viewer.
H09423B.jpg.gz	1.04MB	The image may be viewed with a standard image viewer.
H09423A.jpg.gz	1.12MB	The image may be viewed with a standard image viewer.
H09423B.tif.gz	269.49MB	The image may be viewed with a standard image viewer.
H09423A.tif.gz	276.22MB	The image may be viewed with a standard image viewer.
NOAA/NOS Smooth Sheet survey image in MrSID format
H09423B.sid.gz	11.41MB	The MrSID (.sid) format is supported in major GIS applications. Stand alone tools may be available from Lizard Tech.
H09423A.sid.gz	9.02MB	The MrSID (.sid) format is supported in major GIS applications. Stand alone tools may be available from Lizard Tech.

Bottom Samples and Tide Documents

Bottom Sample Data
NOAA/NOS bottom sample listing in IMLGS (pre-1989)
Link to H09423 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
H09423_BSText.txt	13.7KB	NOAA/NOS bottom sample document in PDF or ASC format.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Goose Island to Port Gravina KNOWLES HEAD Alaska

Start Date End Date Approval Date 1974-06-01 1974-06-30 1976-04-01

Project Number Project Name Purpose OPR-SP-PMC-5-DA-74 Hinchinbrook Island to Goose Island, Alaska Update Nautical Chart(s)

Source of Original Data

Link to Original Data Data Source

Reference System Information

Vertical Datum Horizontal Datum Projection Scale Mean Lower Low Water North American Datum 1927 20000

Tide Note Tide Zones Survey Tide Stations COOPS Tide Station ID Knowles Head, T-12, Alaska 9454323 Gravina Point, T-8, Alaska 9454207 Johnstone Point, T-4, Alaska 9454319

Affected Products

ENCs RNCs

Junction Surveys

Survey Equipment

Vessel(s) Chief(s) of Party DAVIDSON Launch 3039 DAVIDSON Launch 3040 NOAA Ship DAVIDSON Michael H. Fleming

Manufacturer Model Instrument Type Bar Check Teledyne Hastings Raydist DR-S ZA-67A Transceiver Electronic Range/Range Ross 5000 Single Beam Echo Sounder Raytheon DE-723 Single Beam Echo Sounder

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Source Data Not Available