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Report for H12440 Locality: Krenitzin Islands Sublocality: Derbin Strait State(s) or Region(s): Alaska Start Date: 2012-06-23 End Date: 2012-07-08 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 H12440
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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.
H12440_DR.pdf	4.35MB	The document may be read using a free Adobe Reader.
NOAA/NOS ISO metadata record
H12440 View / Download H12440.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
H12440_MB_VR_MLLW_1of1.bag	90.86MB	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.
H12440		XYZ format.

Images

GeoImagePDF
H12440_GeoImage.pdf	34.60MB	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.
H12440_MBAB_1m_R2_240kHz_3of3.tiff	2.76MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12440_MBAB_2m_D2_240kHz_2of3.tiff	6.34MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H12440_MBAB_3m_PacificStar_100kHz_1of3.tiff	9.62MB	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 H12440 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
H12440_BottomSamples.ascii	0.6KB	NOAA/NOS bottom sample document in PDF or ASC format.
NOAA/NOS Tide Note in PDF Format
H12440_tn.pdf	16.4KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
H12440_ProjectSketch.jpg	289.1KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
OPR-Q191-KR-12_DAPR.pdf	1.87MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Krenitzin Islands Derbin Strait Alaska

Start Date End Date Approval Date 2012-06-23 2012-07-08

Project Number Project Name Purpose OPR-Q191-KR-12 Krenitzin Islands, Alaska Update Nautical Chart(s)

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 40000

Survey Tide Stations COOPS Tide Station ID Rootok Island, Alaska 9462723 Tigalda Bay, Tigalda Island, Alaska 9462782 Trident Bay, Akun Island, Alaska 9462721

Affected Products

ENCs RNCs US4AK6FM 16531

Junction Surveys H12441 H12439 H12263

Survey Equipment

Manufacturer Model Instrument Type Reson 7101 MBES RESON 7111 MBES

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 389.997 2014-10-10 BATHYMETRY