NOAA > NESDIS > NCEI (formerly NGDC) > Marine Geology and Geophysics > Bathymetry & Relief privacy policy  All Bathy/Relief Coastal DEMs Fishing Global Lakes Multibeam NOS

Report for H11421 Locality: Gulf of Maine Sublocality: Wildcat Knoll State(s) or Region(s): Massachusetts Start Date: 2005-07-31 End Date: 2005-08-07 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 H11421
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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.
H11421.pdf	2.40MB	The document may be read using a free Adobe Reader.
NOAA/NOS ISO metadata record
H11421 View / Download H11421.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.
H11421_MB_6m_MLLW_2of3.bag	50.02MB
H11421_MB_4m_MLLW_1of3.bag	5.64MB
H11421_VB_8m_MLLW_3of3.bag	356.9KB
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.
H11421		XYZ format.

Images

NOAA/NOS sidescan sonar mosaic in TIFF format
H11421_SSSAB_1m_455kHz_1of1.tif	55.97MB	NOAA/NOS TIFF sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H11421_SSSAB_1m_455kHz_1of1.tfw	72 Bytes	NOAA/NOS TIFF sidescan sonar mosaic file. This world file geospatially registers the corresponding TIFF image.
NOAA/NOS sidescan sonar mosaic in JPEG format
H11421_1m_SSS_UTM19NAD83.jpg	2.85MB	NOAA/NOS JPEG sidescan sonar mosaic survey image. The mosaic may be viewed with a standard image viewer.
H11421_1m_SSS_UTM19NAD83.jpw	72 Bytes	NOAA/NOS JPEG sidescan sonar mosaic file. This world file geospatially registers the corresponding JPEG image.
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.
H11421_MBAB_3m_S222_095kHz_1of1.tfw	72 Bytes	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.
H11421_MBAB_3m_S222_095kHz_1of1.tif	41.80MB	NOAA/NOS TIFF multibeam acoustic backscatter mosaic survey image.

Bottom Samples and Tide Documents

NOAA/NOS Tide Note in PDF Format
H11421.tn.pdf	188.2KB	This document may be read using a free Adobe Reader.

Project Documents

Project Sketch in JPEG format
OPR-S-A902-TJ-05(H11421).jpg	132.6KB	Project sketch image with highlighted survey area.
Data Acquisition and Processing Report in PDF format
S-A902-TJ-05_DAPR.pdf	2.48MB	This document may be read using a free Adobe Reader.

Survey Metadata

Survey Summary

Locality Sublocality State or Region Gulf of Maine Wildcat Knoll Massachusetts

Start Date End Date Approval Date 2005-07-31 2005-08-07 2008-01-24

Project Number Project Name Purpose S-A902-TJ-05 Wildcat Knoll Mapping Project, Massachusetts Update Nautical Chart(s)

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 19 40000

Survey Tide Stations COOPS Tide Station ID Boston, Massachusetts 8443970

Affected Products

ENCs RNCs US3EC10M 5161 13267 13260 13200 13009 13006 13003

Survey Equipment

Vessel(s) Chief(s) of Party NOAA Ship THOMAS JEFFERSON Emily B. Christman

Manufacturer Model Instrument Type Klein Marine Systems System 5500 SSS Seabird-Seacat SBE 19 Plus CTD Profiler Conductivity Temperature and Depth Trimble DSM212L DGPS Receiver Satellite DGPS Simrad EM1002 MBES Odom Echotrac DF3200 MKII Single Beam Echo Sounder Applanix TSS POS/MV 320 GPS Receiver Satellite GPS

Source Data at NCEI

Data in Archive Size (in GB) Date Archived Data Types Surveyed Raw and Processed 9.504 2008-04-11 BACKSCATTER, SIDE SCAN, BATHYMETRY